CN110106830B - A kind of perforated mould bag concrete ecological bank protection structure and construction method - Google Patents

Abstract

A porous mould bag concrete ecological bank protection structure and a construction method thereof mainly comprise concrete strips, bamboo pipes and anchor rods, wherein the concrete strips are made of mould bag self-compacting concrete, the length direction of the concrete strips forms a certain angle with the contour line of a slope surface, and inclined ditches parallel to the length direction and the width direction of the concrete strips are reserved between the concrete strips; one end of the anchor rod is inserted into the side slope, and the other end of the anchor rod is used for fixing the nest bamboo tube and the vegetation bamboo tube and is buried in the concrete strips. The invention can adapt to complex terrains, has high construction efficiency, can be applied to rocky water banks or hydro-fluctuation belts, provides nests for wild animals while effectively protecting the water banks or hydro-fluctuation belts, and provides a growing environment for plants.

Description

A kind of perforated mould bag concrete ecological bank protection structure and construction method

technical field

The invention relates to a concrete ecological bank protection structure and a construction method with perforated mould bags, and belongs to the field of ecological environmental protection.

Background technique

In the existing slope protection technology, the plants are usually arranged in steps according to the fluctuation of the water level in the water level, and the automatic flotation device is installed to protect the level. The plan for arranging plants in steps can distinguish different steps according to the biological characteristics of different plants such as water tolerance and drought tolerance, which can solve the problem of greening in the ebb and flow zone to a certain extent, but most rock slopes lack plants, animals and microorganisms. Living conditions, plants are not easy to survive, and the length of the flood season directly affects the growth of plants; the automatic flotation device can effectively protect the slopes of the fluctuating belt by setting cutting mats, can eliminate waves and prevent waves, and reduce erosion, but it cannot adapt to The complex terrain and lack of consideration of animal habitats have destroyed the ecological balance.

SUMMARY OF THE INVENTION

Aiming at the above problems, the invention can effectively protect the slope, make the planted plants easy to survive, overcome the influence of the length of the flood season on the plants, and propose a concrete ecological bank protection structure and construction method with a hole mould bag.

The technical scheme adopted by the present invention is as follows:

A concrete ecological bank protection structure with perforated mould bags, comprising concrete strips, in which nest bamboo pipes and vegetation bamboo pipes are pre-buried, and gaps parallel to the length and width directions thereof are left between the concrete strips to form intersecting each other. the sloping ditch; the nest bamboo pipe is bound and fixed on the annular anchor rod, and its nozzle is open in the inclined ditch, and at least two of them are connected to each other; one end of the annular anchor rod is inserted into the slope, and the other end is buried in the concrete strip The vegetation bamboo tube is inserted in the ring of the annular anchor rod, and there are substrates and plants in the cavity of the vegetation bamboo tube.

The length direction of the inclined groove forms an angle of β with the contour line of the slope, 12°≤β≤30°.

The vegetation bamboo pipe forms an α angle with the slope, 60°≤α≤80°.

The matrix in the cavity of the bamboo tube for vegetation is: a mixture of tillage soil, decomposed sawdust, river sand and soil binder fully mixed, in a volume ratio: tillage soil: decomposed sawdust: river sand=70- 90:5-12:5-15; the dosage of soil binder is 0.016-0.019 g/L; the plants are Cynodon dactylon (L.) Pers. , Bidens pilosa L. , One or more of Xanthium sibiricum Patrin ex Widder or Polygonum (Ludwigia prostrata Roxb) .

The depth of the annular anchor rod inserted into the slope surface is not less than 15 cm, and the length of the projecting slope surface is not less than 20 cm.

The annular anchor rod includes vertical steel bars and a ring connected with the vertical steel bars, and the annular rings pass through the vertical steel bars and are fixed on the vertical steel bars.

The construction method of the concrete ecological bank protection structure with hole mould bag includes the following steps:

(1) Prepare materials, prepare bamboo pipes, ring bolts, threaded bolts, gaskets, nuts, geomoulding bags and beading and other materials: open up the inner cavity of the nest bamboo pipe and the vegetation bamboo pipe, and use a The thick plastic film is sealed, and then the wall of the bamboo tube of the nest is opened; a ring is welded on the smooth round steel bar to form a ring anchor; the unstitched side B and the concrete pouring port are reserved for the geoform bag during processing. Positioning rings are sewn on two adjacent sides of the slope contact plane;

(2) Clear the slope and set out, clean up the rolling stones, floating soil and dead branches on the slope, and measure and set out the line;

(3) Drill anchor holes and drill anchor holes on the slope;

(4) Install the threaded bolt, insert the threaded bolt into the anchor hole, and fill the gap between the threaded bolt and the hole with cement grouting;

(5) Install the geoform bag. After the cement hardens, pass the threaded anchor rod through the positioning ring, then press the bead on the geoform bag, drill holes on the bead, and then insert the threaded bolt through the gasket and the bead. slope, and finally tighten the nut;

(6) Install the bamboo pipe, pierce the annular anchor rod through the geo-mold bag and insert it into the anchor hole, fill the gap between the anchor rod and the hole with cement grouting, and insert the vegetation bamboo pipe into the annular anchor rod after the cement hardens. In the ring, the top end is glued to the inner surface of the geomodel bag, then the nest bamboo tube is tied and fixed on the ring anchor, the two nest bamboo tubes are bonded at the interface E, and the geomodel is sewed after the assembly is completed. bag;

(7) Concrete is poured, and the technology of pumping concrete is used to construct the concrete strip. The construction sequence of the concrete strip is carried out in sequence from the top of the slope to the foot of the slope; when each concrete strip is constructed, self-compacting concrete is poured from the concrete pouring port of the geoform bag;

(8) Conservation. After the mortar is finally set, start watering and curing. During the curing period, the surface of the slope protection is required to be in a wet state. When the concrete strength reaches more than 75%, cut the side of the mold bag connected with the nest bamboo pipe to expose the pipe opening, which becomes the entrances for animal passage;

(9) Construction of the vegetation bamboo pipe, cutting the upper surface of the mold bag connected with the vegetation bamboo pipe to expose the mouth of the pipe and put the substrate and plant seeds in the pipe.

The perforated mould bag concrete ecological bank protection structure and construction method provided by the present invention have the following beneficial effects:

1) The porous concrete structure formed by the moulded bag concrete and the pre-embedded bamboo pipes integratedly solves the protection, greening and biological nest construction of the ebb and flow zone or river bank, and increases the stability and biodiversity of the ebb and flow zone or river bank. Beautify the landscape.

2) The use of geoform bags and pumping self-compacting concrete technology reduces construction costs and facilitates construction.

3) Molded bag concrete can adapt to the uneven terrain of the slope, and can effectively protect the slope.

4) Bamboo pipes with different diameters can be pre-buried to inhabit a variety of creatures. When underwater, fish and shrimp can inhabit; when underwater, frogs, snakes, turtles, etc. can inhabit.

5) The inclined grooves between the concrete strips have a small slope, which can provide passage for animal activities while draining water.

6) Ring bolts and threaded bolts are implanted in the slope to strengthen the strength and self-stabilization of the rock mass, increase the fixing strength of the bamboo pipe, and make the concrete, the geoform bag and the rock mass form a common system.

In conclusion, the present invention can effectively protect the slope, provide survival conditions for plants, animals and microorganisms on the rocky slope, make the planted plants easy to survive, and solve the problem of simultaneous protection and greening of the steep rock slope.

Description of drawings

Figure 1 is a schematic plan view of the installation on the slope and the concrete has been poured but the geoform bag has not been removed.

Figure 2 is a schematic perspective view of a single geoform bag installed on a slope with bamboo pipes installed but no concrete poured.

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 .

FIG. 4 is a detailed view of the installation position Z of the threaded anchor rod in FIG. 3 .

FIG. 5 is a detailed view of the splicing part C of the bamboo tube in the nest in FIG. 2 .

Figure 6 is a schematic illustration of a single unsewn geoform bag.

In the figure: ring anchor 1, concrete strip 2, nest bamboo pipe 3, positioning ring 4, slope 5, vegetation bamboo pipe 6, inclined ditch 7, concrete pouring port 8, bead 9, threaded anchor 10, gasket 11. Nut 12, nest bamboo pipe joint E, unstitched side B of geomold bag, processed side D of geomold bag.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments. The description of the following examples is only used to help the understanding of the present invention, but does not limit the protection scope of the present invention. It should be pointed out that the simple replacement and combination of some technical features of the above technical solutions, such as replacing the bamboo tube with a plastic or iron tube, and replacing the anchor rod with a plastic rod or a wooden rod, are all included in the technical solution of the present invention. within.

The annular anchor rod 1 of the present invention includes a vertical steel bar and a ring connected with the vertical steel bar, and the annular ring passes through the vertical steel bar and is fixed on the vertical steel bar.

The body of the geomold bag is made of two layers of high-strength woven polypropylene fabric.

The weight ratio of self-compacting concrete is cement: mineral powder: fly ash: water: sand: crushed stone: admixture 17:4.5:2.5:6.5:30:39:0.5. Among them, the cement is ordinary Portland cement P.042.5; the mineral powder type is S95; the fly ash is grade II; the sand is medium sand in zone II; The admixture is a mixture of polyhydroxy acid superplasticizer and swelling agent.

The drilling rig model is handheld ZQSJ-140/4.1 drilling rig.

The welding machine model is NB-315Y gas welding machine.

Example 1

A certain place is a rocky slope with a slope of 30° and a slope height of 3 m. The present invention is proposed to be used for protection.

The shape of the geomold bag is shown in Figure 6, the length is 2 m, the width is 1 m, and the vertical height H between the highest point and the bottom surface of the geomold bag is 40 cm; the positioning ring is made of stainless steel, and its installation position is far from the side of the geomold bag. The distance between the sides is 15 cm, the diameter is 15 mm, the thickness is 8 mm, and the distance between the two positioning rings is 30 cm.

The vertical steel bars in the ring anchor rod are HPB300 grade smooth round steel rods, with a diameter of 10 mm and a spacing of 50 cm. The rings on it are solid round steel with an outer diameter of 10 cm; the threaded anchor rods are HRB400E grade threads. Rebars, 12 mm in diameter and 30 cm apart.

Concrete ecological bank protection structure with hole mould bag, comprises concrete strip 2, in concrete strip 2, is pre-buried with nest bamboo pipe 3, vegetation bamboo pipe 6, between described concrete strip 2, there is a gap parallel to its length and width direction respectively Form mutually intersecting oblique grooves 7, and its length direction is 12 ° angle with the slope contour line; Nest bamboo pipe 3 is bound and fixed on the annular anchor rod 1, and its orifice is opened in the inclined groove 7, and at least two mutual One end of the annular anchor rod 1 is inserted in the side slope, and the other end is buried in the concrete strip 2; and plants and at a 60° angle to the slope.

The nest bamboo pipes 3 in the single concrete strip 2 are provided with three, with diameters of 5 cm, 10 cm and 15 cm respectively; the length of the vegetation bamboo pipes 6 is 40 cm and the diameter is 5 cm.

The matrix in the cavity of the bamboo tube 6 for vegetation is: a mixture of cultivated soil, decomposed wood chips, river sand and soil adhesive, in a volume ratio: cultivated soil: decomposed wood chips: river sand=70:5:5 ; The amount of soil binder was 0.016 g/L; the plants were Cynodon dactylon (L.) Pers.) and Bidens pilosa L ..

The width of the inclined groove 7 is 30 cm.

The length of the annular anchor rod 1 inserted into the slope surface is 15 cm, and the length of the protruding slope surface is 20 cm.

The concrete bar 2 is made of pumped C25 self-compacting concrete.

The above-mentioned construction method of a perforated mould bag concrete ecological bank protection structure comprises the following steps:

(1) Prepare materials, prepare bamboo pipes, ring bolts, threaded bolts, gaskets, nuts, geomoulding bags and beading and other materials: open up the inner cavity of the nest bamboo pipe and the vegetation bamboo pipe, and use a The thick plastic film is sealed, and then the wall of the bamboo tube of the nest is opened; a ring is welded on the smooth round steel bar to form a ring anchor; the unstitched side B and the concrete pouring port are reserved for the geoform bag during processing. Positioning rings are sewn on two adjacent edges of the sloped contact plane.

(2) Clear the slope and set out, clean up the rolling stones, floating soil and dead branches on the slope, and measure and set out the line.

(3) Drill anchor holes and drill anchor holes on the slope.

(4) Install the threaded bolt, insert the threaded bolt into the anchor hole and fill the gap between the threaded bolt and the hole with cement grouting. The depth of the threaded bolt inserted into the slope is 15 cm.

(5) Install the mold bag, after the cement hardens, pass the threaded anchor rod through the positioning ring, then press the bead on the geo-form bag, and then drill holes on the bead, the bead is solid rubber, its width is 10 cm, and its thickness is 10 cm. 8 mm, then insert the threaded anchor through the spacer and bead into the ramp, and finally tighten the nut.

(6) Install the bamboo pipe, pierce the circular anchor rod through the geo-model bag and insert it into the anchor hole, and fill the gap between the steel bar and the hole with cement grouting. After the cement hardens, insert the vegetation bamboo pipe into the ring anchor rod. In the ring, the top end is fixed on the inner surface of the geo-moulding bag by means of gluing, and then the nest bamboo pipe is tied and fixed on the ring anchor rod, and the two nest bamboo pipes are fixed through the nest bamboo pipe interface E. The strength of the interface can be supplemented with latex to prevent the nest bamboo tube from loosening. Then, the nest bamboo tube and the vegetation bamboo tube are fixed on the anchor rod with iron wire, and the geotechnical bag is sewed after the assembly is completed.

(7) Concrete is poured, and the concrete strip is constructed by the technology of pumping concrete. The construction sequence of the concrete strip is from the top of the slope to the toe of the slope. When each concrete strip is constructed, self-compacting C25 Pump concrete.

(8) Conservation. After the mortar is finally set, start watering curing. During the curing period, the slope protection surface is required to be in a wet state. The curing time is 7 days. When the concrete strength reaches 75%, cut the side of the mold bag connected to the nest bamboo pipe to make The mouth of the pipe is exposed and becomes the entrance for animals to pass through.

(9) Construction of the vegetation bamboo pipe, cutting the upper surface of the mold bag connected with the vegetation bamboo pipe to expose the mouth of the pipe and put the substrate and plant seeds in the cavity of the bamboo pipe.

Implementation case 2

A certain place is a soil and rock slope in the ebb and flow zone, with a slope of 45° and a slope height of 4 m. The present invention is planned to be used for protection.

The shape of the geo-mold bag is shown in Figure 6, with a length of 2.5 m and a width of 1.5 m. The vertical height H between the highest point and the bottom of the geo-mold bag is 50 cm; the positioning ring is made of stainless steel, and its installation position is far from the side of the geo-mold bag. The distance between the sides is 25cm, the diameter is 15mm, the thickness is 10mm, and the distance between the two positioning rings is 35cm.

The vertical steel bars in the ring anchor rod are HPB300 grade smooth round steel rods, with a diameter of 10 mm and a spacing of 55 cm, and the ring above it is a solid round steel with an outer diameter of 12 cm; the threaded anchor rods are HRB400E grade threads Rebars, 12 mm in diameter and 35 cm apart.

Concrete ecological bank protection structure with hole mould bag, comprises concrete strip 2, in concrete strip 2, is pre-buried with nest bamboo pipe 3, vegetation bamboo pipe 6, between described concrete strip 2, there is a gap parallel to its length and width direction respectively Form mutually intersecting oblique grooves 7, and its length direction is 20 ° angle with the slope contour line; Nest bamboo pipe 3 is bound and fixed on the annular anchor rod 1, and its orifice is opened in the inclined groove 7, at least two mutual One end of the annular anchor rod 1 is inserted in the side slope, and the other end is buried in the concrete strip 2; and plants and at a 70° angle to the slope.

There are four nest bamboo pipes 3 in the single concrete strip 2, and the diameters are respectively 5 cm, 10 cm, 15 cm and 20 cm.

The vegetation bamboo tube 6 is 50 cm in length and 10 cm in diameter.

The matrix in the cavity of the bamboo tube 6 for vegetation is: a mixture of cultivated soil, decomposed wood chips, river sand and soil adhesive, in a volume ratio: cultivated soil: decomposed wood chips: river sand=80:10:10 The amount of soil binder was 0.018 g/L; the plants were Cynodon dactylon (L.) Pers. , Bidens pilosa L. and Xanthium sibiricum Patrin ex Widder .

The width of the inclined groove 7 is 40 cm.

The length of the annular anchor rod 1 inserted into the slope surface is 18 cm, and the length of the annular anchor rod 1 extending out of the slope surface is 25 cm.

The concrete strip 2 is pumped C25 self-compacting concrete.

The described construction method of the concrete ecological bank protection structure with hole mould bag comprises the following steps:

(1) Prepare materials, prepare bamboo pipes, ring bolts, threaded bolts, gaskets, nuts, geomoulding bags and beading and other materials: open up the inner cavity of the nest bamboo pipe and the vegetation bamboo pipe, and use a The thick plastic film is sealed, and then the wall of the bamboo tube of the nest is opened; a ring is welded on the smooth round steel bar to form a ring anchor; the unstitched side B and the concrete pouring port are reserved for the geoform bag during processing. Positioning rings are sewn on two adjacent edges of the sloped contact plane.

(2) Clear the slope and set out, clean up the rolling stones, floating soil and dead branches on the slope, and measure and set out the line.

(3) Drill anchor holes and drill anchor holes on the slope.

(4) Install the threaded bolt, insert the threaded bolt into the anchor hole and fill the gap between the threaded bolt and the hole with cement grouting. The depth of the threaded bolt inserted into the slope is 18 cm.

(5) Install the mold bag. After the cement hardens, pass the threaded anchor rod through the positioning ring, then press the bead on the geotechnical bag, and then drill holes on the bead. The material of the bead is stainless steel, and its width is 15 cm. , the thickness is 10 mm, then insert the threaded anchor rod through the gasket and the bead into the slope body, and finally tighten the nut.

(6) Install the bamboo pipe, pierce the circular anchor rod through the geo-model bag and insert it into the anchor hole, fill the gap between the steel bar and the hole with cement grouting, and after the cement hardens, insert the vegetation bamboo pipe into the hole of the circular anchor rod In the ring, the top end is fixed on the inner surface of the geo-moulding bag by means of gluing, and then the nest bamboo pipe is tied and fixed on the ring anchor rod, and the two nest bamboo pipes are fixed through the nest bamboo pipe interface E. The strength of the interface can be supplemented with latex to prevent the nest bamboo pipe from loosening. Then, the nest bamboo pipe and the vegetation bamboo pipe are fixed on the anchor rod with iron wires, and the mold bag is sewed after the assembly is completed.

(7) Concrete is poured, and the concrete strip is constructed by the technology of pumping concrete. The construction sequence of the concrete strip is from the top of the slope to the toe of the slope. When each concrete strip is constructed, self-compacting C25 Pump concrete.

(8) Conservation. After the mortar is finally set, start watering curing. During the curing period, the slope protection surface is required to be in a wet state. The curing time is 7 days. When the concrete strength reaches 80%, cut the side of the mold bag connected to the nest bamboo pipe to The mouth of the pipe is exposed and becomes the entrance for animals to pass through.

(9) Construction of the vegetation bamboo pipe, cutting the upper surface of the mold bag connected with the vegetation bamboo pipe to expose the mouth of the pipe and put the substrate and plant seeds in the cavity of the bamboo pipe.

Implementation Case 3

A certain place is a broken rock slope with a slope of 60° and a slope height of 5 m, and the present invention is proposed to be used for protection.

The shape of the geomold bag is shown in Figure 6, the length is 3 m, the width is 2 m, and the vertical height H between the highest point and the bottom surface of the geomold bag is 60 cm; the positioning ring is made of stainless steel, and its installation position is far from the side of the geomold bag. The distance between the sides is 35 cm, the diameter is 15 mm, the thickness is 12 mm, and the distance between the two positioning rings is 40 cm.

The vertical steel bars in the ring anchor rod are HPB300 grade smooth round steel rods, with a diameter of 10 mm and a spacing of 60 cm, and the ring above it is a solid round steel with an outer diameter of 16 cm; the threaded anchor rods are HRB400E grade threads Rebars, 12 mm in diameter and 40 cm apart.

Concrete ecological bank protection structure with hole mould bag, comprises concrete strip 2, in concrete strip 2, is pre-buried with nest bamboo pipe 3, vegetation bamboo pipe 6, between described concrete strip 2, there is a gap parallel to its length and width direction respectively Form mutually intersecting oblique grooves 7, and its length direction is 30 ° angle with the slope contour line; Nest bamboo pipe 3 is bound and fixed on the annular anchor rod 1, and its orifice is opened in the inclined groove 7, at least two mutual One end of the annular anchor rod 1 is inserted in the side slope, and the other end is buried in the concrete strip 2; and plants and at an angle of 80° to the slope.

There are 5 nest bamboo tubes 3 in the single geomoulding bag 2, with diameters of 5 cm, 10 cm, 15 cm, 20 cm, and 25 cm, respectively.

The vegetation bamboo tube 6 has a length of 60 cm and a diameter of 15 cm.

The matrix in the cavity of the bamboo tube 6 for vegetation is: a mixture of cultivated soil, decomposed wood chips, river sand and soil adhesive, in a volume ratio: cultivated soil: decomposed wood chips: river sand=90:12:15 ; The dosage of soil binder is 0.019 g/L; The plants are Cynodon dactylon (L.) Pers. , Bidens pilosa L. , Xanthium sibiricum Patrin ex Widder and Polygonum (Ludwigia prostrata Roxb) .

The width of the inclined groove 7 is 45 cm.

The length of the annular anchor rod 1 inserted into the slope is 20 cm, and the length of protruding from the slope is 30 cm.

The concrete strip 2 is pumped C25 self-compacting concrete.

The described construction method of the concrete ecological bank protection structure with hole mould bag comprises the following steps:

(1) Prepare materials, prepare bamboo pipes, ring bolts, threaded bolts, gaskets, nuts, geomoulding bags and beading and other materials: open up the inner cavity of the nest bamboo pipe and the vegetation bamboo pipe, and use a The thick plastic film is sealed, and then the wall of the bamboo tube of the nest is opened; a ring is welded on the smooth round steel bar to form a ring anchor; the unstitched side B and the concrete pouring port are reserved for the geoform bag during processing. Positioning rings are sewn on two adjacent edges of the sloped contact plane.

(2) Clear the slope and set out, clean up the rolling stones, floating soil and dead branches on the slope, and measure and set out the line.

(3) Drill anchor holes and drill anchor holes on the slope.

(4) Install the threaded bolt, insert the threaded bolt into the anchor hole and fill the gap between the threaded bolt and the hole with cement grouting. The depth of the threaded bolt inserted into the slope is 20 cm.

(5) Install the mold bag. After the cement is hardened, pass the threaded anchor rod through the positioning ring, then press the bead on the geotechnical mold bag, and then drill holes on the bead. The material of the bead is iron, and its width is 20 cm. , the thickness is 12 mm, then insert the threaded anchor rod through the gasket and the bead into the slope body, and finally tighten the nut.

(6) Install the bamboo pipe, pierce the circular anchor rod through the geo-model bag and insert it into the anchor hole, and fill the gap between the steel bar and the hole with cement grouting. After the cement hardens, insert the vegetation bamboo pipe into the ring anchor rod. In the ring, the top end is fixed on the inner surface of the geo-moulding bag by means of gluing, and then the nest bamboo pipe is tied and fixed on the ring anchor rod, and the two nest bamboo pipes are fixed through the nest bamboo pipe interface E. The strength of the interface can be supplemented with latex to prevent the nest bamboo pipe from loosening. Then, the nest bamboo pipe and the vegetation bamboo pipe are fixed on the anchor rod with iron wires, and the mold bag is sewed after the assembly is completed.

(7) Concrete is poured, and the concrete strip is constructed by the technology of pumping concrete. The construction sequence of the concrete strip is from the top of the slope to the toe of the slope. When each concrete strip is constructed, self-compacting C25 Pump concrete.

(8) Conservation. After the mortar is finally set, start watering curing. During the curing period, the surface of the slope protection is required to be in a wet state. The curing time is 7 days. When the concrete strength reaches 85%, cut the side of the mold bag connected with the nest bamboo pipe to make The mouth of the pipe is exposed and becomes the entrance for animals to pass through.

(9) Construction of the vegetation bamboo pipe, cutting the upper surface of the mold bag connected with the vegetation bamboo pipe to expose the mouth of the pipe and put the substrate and plant seeds in the cavity of the bamboo pipe.

Claims (7)

1. A construction method of a porous mould bag concrete ecological revetment structure is characterized in that: the porous mould bag concrete ecological bank protection structure comprises concrete strips (2), wherein nest bamboo tubes (3) and vegetation bamboo tubes (6) are pre-embedded in the concrete strips (2), and gaps parallel to the length direction and the width direction of the concrete strips (2) are reserved among the concrete strips (2) to form crossed oblique ditches (7); the nest bamboo tubes (3) are bound and fixed on the circular anchor rods (1), the openings of the tube openings are arranged in the inclined grooves (7), and at least two of the tube openings are communicated with each other; one end of the circular anchor rod (1) is inserted into the side slope, and the other end of the circular anchor rod is embedded in the concrete strip (2); the vegetation bamboo tube (6) is inserted into the circular ring of the circular ring anchor rod (1); the cavity of the vegetation bamboo tube (6) is filled with a substrate and plants;

the construction method of the porous mould bag concrete ecological bank protection structure comprises the following steps:

(1) preparing materials, preparing a bamboo pipe, a circular ring anchor rod, a thread anchor rod, a gasket, a screw cap, a geotechnical mold bag and a pressing strip: punching through the inner cavities of the nest bamboo tubes and the vegetation bamboo tubes, sealing the tube openings by using thickened plastic films, and then opening the tube walls of the nest bamboo tubes; welding a circular ring on the plain steel bar to form a circular ring anchor rod; the side B which is not sewed and the concrete filling opening are reserved when the geomembrane bag is processed, and positioning rings are sewed on two adjacent sides of the contact plane of the geomembrane bag and the slope surface;

(2) clearing a slope, lofting, clearing away rolling stones, floating soil and dry branches on the slope, and measuring and setting out;

(3) drilling anchor holes, namely drilling anchor holes on the slope surface;

(4) installing a threaded anchor rod, inserting the threaded anchor rod into the anchor hole, and filling a gap between the threaded anchor rod and the hole by cement grouting;

(5) installing a geotechnical model bag, after cement is hardened, penetrating a threaded anchor rod through a positioning ring, pressing a pressing strip on the geotechnical model bag, drilling a hole on the pressing strip, penetrating the threaded anchor rod through a gasket and the pressing strip, inserting the threaded anchor rod into a slope body, and finally screwing a screw cap;

(6) installing bamboo pipes, inserting a circular anchor rod into an anchor hole by penetrating a circular anchor rod into a geotechnical model bag, filling a gap between the anchor rod and the hole by cement grouting, inserting a vegetation bamboo pipe into a circular ring of the circular anchor rod after cement is hardened, bonding the top end of the vegetation bamboo pipe to the inner surface of the geotechnical model bag, binding and fixing nest bamboo pipes on the circular anchor rod, bonding the two nest bamboo pipes at a joint E, and sewing the geotechnical model bag after assembly is completed;

(7) pouring concrete, wherein concrete strips are constructed by adopting a concrete pumping technology, and the construction sequence of the concrete strips is carried out from the top of a slope to the bottom of the slope in sequence; when each concrete strip is constructed, self-compacting concrete is poured from a concrete pouring opening of the earth work mold bag;

(8) curing, namely starting watering curing after the concrete is finally set, wherein the surface of the revetment is required to be in a wet state during curing, and when the strength of the concrete reaches over 75 percent, cutting the side edge of a mould bag connected with the nest bamboo tube to expose a tube opening to form an inlet for animals to pass through;

(9) constructing the vegetation bamboo pipe, cutting the upper surface of a mold bag connected with the vegetation bamboo pipe to expose a pipe opening, and putting a substrate and plant seeds into a cavity of the bamboo pipe.

2. The construction method of the porous mould bag concrete ecological bank protection structure according to claim 1, is characterized in that: the length direction of the oblique groove (7) forms an angle beta with the contour line of the slope surface, and the angle beta is more than or equal to 12 degrees and less than or equal to 30 degrees.

3. The construction method of the porous mould bag concrete ecological bank protection structure according to claim 1, is characterized in that: the vegetation bamboo tube (6) forms an alpha angle with the slope surface, and the alpha is more than or equal to 60 degrees and less than or equal to 80 degrees.

4. The construction method of the porous mold bag concrete ecological bank protection structure according to claim 1, 2 or 3, characterized in that: the substrate in the cavity of the vegetation bamboo tube (6) is as follows: the method comprises the following steps of (1) fully mixing plowing soil, decomposed wood chips, river sand and a soil adhesive in a volume ratio: ploughing and planting soil: decomposing wood chips: river sand = 70-90: 5-12: 5-15; the dosage of the soil adhesive is 0.016-0.019 g/L.

5. The construction method of the porous mould bag concrete ecological bank protection structure according to claim 1, is characterized in that: the plant is one or more of bermudagrass, sticktight, siberian cocklebur or polygonum.

6. The construction method of the porous mould bag concrete ecological bank protection structure according to claim 1, is characterized in that: the depth of the circular anchor rod (1) inserted into the slope surface is not less than 15 cm, and the length of the circular anchor rod extending out of the slope surface is not less than 20 cm.

7. The construction method of the porous mould bag concrete ecological bank protection structure according to claim 1, is characterized in that: the ring stock include vertical reinforcing bar and with vertical steel bar connection's ring, the ring passes vertical reinforcing bar and fixes on vertical reinforcing bar.

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