WO2001007720A1 - Garniture de drainage par infiltration ou conduite de drainage par infiltration - Google Patents

Garniture de drainage par infiltration ou conduite de drainage par infiltration Download PDF

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Publication number
WO2001007720A1
WO2001007720A1 PCT/CH2000/000395 CH0000395W WO0107720A1 WO 2001007720 A1 WO2001007720 A1 WO 2001007720A1 CH 0000395 W CH0000395 W CH 0000395W WO 0107720 A1 WO0107720 A1 WO 0107720A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
seepage
containers
water
percolation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CH2000/000395
Other languages
German (de)
English (en)
Inventor
Danko BAŠURA
Daniel Engi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Misapor AG
Original Assignee
Misapor AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Misapor AG filed Critical Misapor AG
Priority to EP00943507A priority Critical patent/EP1125029B1/fr
Priority to AU57999/00A priority patent/AU5799900A/en
Priority to AT00943507T priority patent/ATE296382T1/de
Priority to DE50010394T priority patent/DE50010394D1/de
Publication of WO2001007720A1 publication Critical patent/WO2001007720A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes

Definitions

  • the invention relates to a method for producing an infiltration, in which a bulk material forming water-flowing cavities is introduced into a trench or a pit.
  • the invention further relates to a percolation pack or percolation line with a bulk material forming water-flowable cavities and a water-permeable container filled with a light bulk material forming water-flowable cavities.
  • a seepage with seepage pipe and seepage packing is usually created as follows. First a trench is dug. A concrete banquet is created in the trench and a PVC drain pipe is inserted. A loosely delivered gravel pack is poured over it and protected with a fleece at least laterally and at the top towards the ground. If it is a matter of guiding the water through the seepage into a deeper, water-permeable layer, the banquet and the PVC pipe can be dispensed with,
  • the amount of material to be installed should be minimized and the
  • this is achieved in that light bulk material is filled into water-permeable containers, in particular sacks, and the containers filled with light bulk material are then introduced.
  • This allows the amount of bulk material to be reduced, because the volume of the bulk material and the shape of this volume, even when installed, are primarily defined by the size and shape of the container and not by the shape of the excavation.
  • the bags or containers must be less tearproof for light bulk goods than for gravel. If the containers are filled with light bulk goods, they are still easy to load, transport and handle on site, even if the size is suitable for installation.
  • a water-impermeable layer is advantageously introduced between the container and the base of the excavated volume. As a result, the surface can be spared from getting wet.
  • the impermeable Layer forms a gutter under the container or drainage bag.
  • the light bulk goods are advantageously filled into containers at the factory and delivered to the construction site in the containers.
  • the waterproof layer can also be pulled up on the wall of the trench. Broken chunks of glazed and foamed material are advantageously poured into the container as a light fill.
  • Foam glass gravel therefore has a significantly higher permeability than gravel. Thanks to the high permeability of foam gravel, the cross-section or the volume of the container and subsequently the weight of the filled container can be kept low.
  • reinforcement is introduced into the container. Such reinforced containers are still easy to handle. When laying or placing reinforced tanks, reinforcement is also laid at the same time. In the case of reinforced containers, the container contents are expediently bound by pouring a liquid and hardenable mass, in particular cement slurry. The slurry flows through the cavities and glues the bulk chunks and the reinforcement together, so that the container becomes stiff, and protects the reinforcement against corrosion. Even with unreinforced bags, it may be advisable to bind the bulk material.
  • a flat seepage is advantageously created by adding elongated containers with the long sides next to each other.
  • flat containers can also be manufactured and installed.
  • a seepage line is advantageously created by joining elongated containers with the short sides one behind the other. The abutting containers are advantageously connected to one another. The connection ensures the connection and thus the continuity of the seepage line or seepage layer.
  • the bulk material is advantageously filled into textile containers.
  • Textile containers are particularly useful if due to the low specific weight of the bulk material volume and weight of the full container are in a favorable ratio.
  • Such containers can be filled at the factory, loaded and transported as piece goods and can be placed in a dug pit or ditch without further processing as a seepage pack or drainage pipe.
  • the bulk material advantageously has a lower specific weight than water.
  • a specific weight of less than 400 kg / m 3 is preferred, and a weight of at most 250 kg / m 3 is particularly preferred.
  • the container volume must be reduced with increasing weight. However, the buoyancy of the container also increases. As a rule, however, this is irrelevant thanks to a covering of the fill. Thanks to the closed container, there is also no risk of chunks of the bulk goods being washed away. In no case is a weight higher than 1 ton per cubic meter necessary.
  • the bulk material consists of glazed material, it is inert and therefore particularly environmentally friendly. Glazed and foamed material can be manufactured in different weight classes.
  • a cubic meter of foam glass ballast e.g. has a weight between 1 60 and 1000 kg per cubic meter. The most common ballast weighs around 225 kg.
  • Blast furnace slag and glazed rubbish slag which are foamed and broken, but also foam glass made of new or old glass, are particularly suitable as glazed material.
  • the container is at least partially made of filtering and / or root-resistant textile.
  • geotextiles are known as such.
  • Nonwovens for installation in the ground, or just geotextiles or geogrids etc. are available in different qualities.
  • the tensile strength at different fleece thicknesses is between 7.5 and 17 kN / m.
  • the effective pore size is around 0.1 mm.
  • textiles tailored to different requirement profiles which, depending on the case, are suitable for producing a seepage bag from them.
  • the container is advantageously made of a textile with a coarser mesh structure. In these areas, it is only a matter of holding the bulk goods together in the container.
  • the net can therefore have a mesh size between 2 and 50 mm, or an even larger mesh size for larger chunks of bulk material. Filtering the water flowing through these areas is not desirable. Since the preferred foam glass comes in a chunk size of 15 to 35 mm, one becomes Mesh size between 5 and 20 mm preferred, in particular between 8 and 15 mm.
  • tabs and / or loops are advantageously attached to the containers. Tabs can be connected to tabs or attached to the
  • Loops can be hung with loops or hung on hooks. Alternatively or additionally, ropes, nets, eyelets etc. can also be provided on the containers.
  • the bumps between two containers are advantageously protected with a textile sleeve.
  • a textile sleeve can be placed around the joint as a separate piece. It can also be part of one of the adjacent bags or be made up of two parts belonging to different percolation bags. Cuffs can also be useful for percolation packs.
  • the cross section of the container is advantageously designed for a specific water flow rate.
  • the cross-sectional area of a container designed for the flow rate is dependent on the one used Characteristic of bulk goods.
  • a round sack cross-section of 40 cm corresponds approximately to a tube with a diameter of 1 2 cm.
  • a bag diameter of 50 cm corresponds to a line cross section of 15 cm.
  • bags measuring 40 and 50 cm in cross-section are standard dimensions for this product. However, their length is based on the transport options and advantageously measures 2 or 5 meters.
  • the resulting volume or weight is a random result, not a targeted, easy to calculate delivery quantity of ballast. The same considerations apply to flat containers.
  • such a container for a seepage line or seepage layer therefore measures at least about 2, preferably about 5 meters in length. At least one of the other two dimensions measures at most 80 cm, preferably between 20 and 50 cm, in particular 30 to 40 cm. 80 cm in the layer thickness or in the line cross-section are usually more needed for collecting shafts. The smaller dimensions are generally sufficient for percolation bags or bags for a flat arrangement. Bags for collecting shafts, however, are much shorter. Sacks for collecting shafts are used in lengths of approximately 50 to 200 cm in increments of 50 cm, with diameters of 60 to 200 cm, preferably 80 to 120 cm.
  • Such containers are advantageously made of a container hose made of filtering and / or root-resistant geotextile and net-like closures at both ends of the hose.
  • the filtering fleece encloses those sides that can come into contact with soil.
  • the coarse-meshed net closes the sack without obstructing the water flow for the filled light bulk goods.
  • loops or tabs are advantageously arranged on the long side of the container, with which the containers can be attached to a surface or connected to each other.
  • FIG. 1 a geotextile sack filled with lumps of foam glass with loops attached to the side,
  • FIG. 2 shows a geotextile mat
  • FIG. 3 shows a vertical section through a slope drainage
  • FIG. 4 shows a vertical section through a deep seepage
  • FIG. 5 shows a vertical section through a drainage pipe with drainage pipe
  • FIG. 6 shows a vertical section through a drainage pipe without drainage pipe
  • Figure 7 a vertical section through a seeping layer of sacks with
  • FIG. 1 1 a schematic representation of a seepage line bag with
  • FIG. 1 2 shows a seepage line sack with a separate protective sleeve
  • Figure 1 7 a schematic representation of a connection of a conventional seepage line to a seepage according to the invention.
  • the cylindrical bag 1 1 shown schematically in Figure 1 is made of a so-called geotextile and filled with foam glass gravel. It has a filling opening 13 at one end, which is shown laced. Instead of tying the bag, e.g. also be sewn up. Its length is about 5 meters and its diameter is 40 cm. Such bags 1 1 have a weight of about 250 kg, and are therefore relatively easy to handle with man power.
  • the sack shown has three loops 1 5 distributed over its length. As shown in FIG. 8, these can be hung in loops from other sacks. A large number of sacks can be hung to form a flat seepage layer.
  • a seepage mat 1 7 is shown.
  • This has a plurality of chambers 1 9 for the bulk material. It consists of a geotextile. Two layers of textile are stitched together at intervals of approx. 50 cm. This results in hose chambers 1 9 side by side. These chambers are closed at their ends by stitching the two layers of fabric there across the first stitching.
  • the chambers 1 9 are filled with foamed, glazed slag. The chambers bulge through the filling.
  • Such mats can be laid in one or more layers.
  • the multilayer has the advantage that the seepage layer is not interrupted anywhere, which can easily happen in the quilting lines with single-layer use and a compact backfill.
  • the fabrics forming the container wall can be different, for example a geotextile on one side and a mesh on the other side.
  • the geotextile can always be introduced independently of the septic tank 1 1, 1 7. If the seepage mat 17 is used in two layers, the textile layer facing the other seepage mat is advantageously made of an open-pored fabric or a mesh.
  • FIG. 3 shows a schematic cross section through a seepage line in the field.
  • a waterproof film or a waterproof mat 23 is inserted into a trench 21 with a slope. This can e.g. be formed by a plastic wall connection plate as they are attached to protect a building wall against moisture.
  • the edge of the waterproof mat 23 extends over the water-bearing layer 25 on the valley side of the trench. On the mountain side, on the other hand, it begins below the water-bearing layer 25.
  • the waterproof mat 23 forms a type of gutter.
  • a sack 1 1 made of geotextile is filled in the channel, filled with foam glass gravel 26.
  • the laying of such a drainage pipe for slope drainage is very simple: the trench 21 is excavated with a trench excavator. A man inserts the waterproof mat 23 into the trench, working from the bottom up. The mat can be fixed in the trench wall with nails. Two other workers place the sacks 1 1 in the trough. The excavator then closes the trench again with the excavated material.
  • the advantages of such a drainage pipe can be seen quickly: there is no need to create a concrete banquet and to lay and connect PVC drainage pipes. This shortens the construction time and the costs can be kept lower.
  • the seepage pipe is resistant to relatively rough settlements and off-road changes, since it consists of a case.
  • the bed 26 made of lumps of foam glass has a flowable cross section of 30% of the box cross section. With a bag cross-section of 40 cm, a discharge capacity can be achieved which corresponds to a drain pipe of 1 2 cm. However, the surface over which this amount of water can penetrate the seepage is about 6 times larger. Since only individual holes are provided in drainage pipes, the opening cross-section is permeable in this area Surface much larger.
  • the seepage line can also be carried out, for example, just below the surface of a path. There is no risk of it being crushed, even if very heavy loads are carried over it.
  • the pressure load of such a foam glass bed may go against 6 N / mm 2 .
  • Another advantage is the ease of delivery and the rapid installation of the material. Especially in areas that are difficult to access, it is possible to deliver closed and relatively light bags e.g. a great advantage by helicopter or on small vans. The subsequent installation of the filled sacks is also extremely straightforward and unproblematic.
  • the infiltration bag 11 shown in FIG. 4 is placed vertically in a pit 21. He connects an upper water-bearing layer 25 with a lower water-permeable layer 27. The water-impermeable layer 29 lying therebetween is thus pierced with an opening of 30% of the cross-section of the bag.
  • the geotextile prevents particles from entering the seepage. Thanks to the compressive strength of the foam glass ballast 26, the opening width remains unaffected by external influences such as vibrations or site settlements, etc.
  • a bag 11 with foam glass ballast can also be used, as shown in FIG the seepage line 31 can be laid. This makes it possible to introduce the filtering seepage pack 26 at the same time as the geotextile protecting the filter pack from silting up.
  • the drainage bag is not filled to the brim, so that it lies around the drainage pipe.
  • the banquet 35 and the pipeline 31 can also be dispensed with in the case of such a drainage pipe close to the building.
  • the water-impermeable percolation plate 37 does not only have to reach down to the foot of the building, but must form a channel 39 in the foot area.
  • the seepage bag 1 1 is then placed in this channel, which now forms both the seepage line and seepage packing.
  • a seepage layer 41 is created from a plurality of percolation bags 1 1.
  • Every seepage bag consists of a network holding the ballast 26 together and has two geotextile straps 43 fastened to the sack on opposite sides.
  • the flaps extend over the entire length of the sack and have a width that is slightly larger than the cross section of the sack.
  • the bottom sack is placed on the ground when creating the seepage layer and the tab 43 on the water-carrying side is fastened to the subsurface 47 with nails 45.
  • the second sack is placed in the same way on the first sack 11 or the second layer of sacks on the first layer of sacks and the tabs 43 are fastened to the ground.
  • the front flap 43 then hangs over the sack 11 located below and covers it.
  • any number of layers of bags 1 1 can be arranged.
  • Each sack is hung on one flap and covers the surface of the next lower one with the other flap.
  • the top layer can be covered with a geotextile strip 49 before the layer 41 is covered with soil.
  • the bags 1 1 can be provided with loops 15.
  • Figure 8 shows schematically how the loops 15 can be interlocked. Starting at the bottom, loop 1 5 of the upper sack is pulled through the loop of the lower sack (left side of the figure). Or, starting at the top, the loop of the lower sack is fastened with a rod 51 behind the loop 15 of the upper sack 11 (right side of the figure). For this purpose, the rod is passed in front of one loop part of the lower sack, behind one or two loop parts of the upper sack and again in front of the other loop part of the lower sack.
  • Such bags are advantageously made of a tearproof geotextile. However, they can also consist of a wire mesh or lattice and e.g. to be stapled together by wire spirals. Such a wire mesh or lattice works reinforcement at the same time.
  • the seepage bags 11 can also be placed side by side. This is illustrated in Figure 9. So that the several meter long sacks 1 1 do not fall over, one or two sacks can be placed in a trench which fill the trench in a triangular shape. The following sacks can then be leaned against the previously inserted ones. A wide variety of laying patterns are conceivable, similar to the laying pattern of paving stones. However, the bags can also be kinked. Such seepage layers adapt to the terrain and can be installed without formwork and only covered at a later point in time. Reinforcements can also be packed into the drainage bags, which stiffen the drainage bags and can thus provide a certain slope protection. For this purpose, the contents of the seepage bags are advantageously bound with a cement slurry. To do this, the seepage bag 1 1 can be opened at the top and poured over the gravel with a watering can.
  • the percolation bags 1 1 are placed one after the other in a row.
  • Figure 1 0 illustrates this. Seepage bags 1 1 of about 5 meters in length are placed in a row 53.
  • a waterproof layer 37 is inserted between the subsurface 47 and the drainage pipe 53.
  • the sacks 11 can also be arranged partially overlapping. So that the butt joints 55 between the bags 1 1 are not filled when the trench is covered, they are advantageously protected with a sleeve.
  • Figures 1 1 to 1 3 each show a seepage bag line 53 from seepage bags 1 1, which have a tubular geotextile layer.
  • the textile tube 57 is filled with ballast and closed at both ends with textile nets 59.
  • the cuff 65 is formed by a separate bandage.
  • the seepage bag is formed from two halves sewn together so that one half forms a half sleeve 65 at one end and the other half forms a half sleeve 65 at the other end of the textile tube. This allows the seepage bags 1 1 to be joined together without any problems. The joints are well covered. Below e.g. there is half the cuff of one seepage bag and the top of the other of the other seepage bag.
  • Figure 14 shows that entire drainage systems can be created with such drainage pipes 53.
  • the seepage bag lines 53 are guided against a seepage bag shaft 67. They are placed over the seepage bag shaft 67, which causes the water from the seepage bag line 53 to enter the shaft 67. Below the seepage bag shaft, the water can be carried on through a possibly thicker seepage bag line. This is simply placed under the sack and sealed with a waterproof film to the ground. As a rule, however, no shafts are to be provided for connecting pipes.
  • FIG. 1 5 shows a schematic, perspective sketch of a seepage bag 1 1 for a seepage bag line, in which the pipe section 69 is made of a textile material, in particular a fleece intended for underground installation.
  • a section of the fleece which is produced in various roll widths, has been taken and connected to form a tube.
  • the tube 69 can also be made from a wire mesh. So that the pipe can be filled with seepage material, it must be closed on one side. This is done by pulling the end of the fleece tube over a short sheet metal tube.
  • a circular piece of wire mesh 71 is now pressed through the sheet metal tube into the fleece tube 69.
  • the diameter of the wire mesh piece 71 is larger than the diameter of the fleece tube 69. Therefore, the wire mesh piece 71 must be bent for insertion. Due to the elasticity of the wires of the wire mesh piece, this stretches
  • Wire mesh piece 71 again flat as soon as the ends of the wires of the grid are no longer in contact with the sheet metal tube. The ends of the wires are then pressed through the fleece. This keeps the lattice piece in the fleece tube.
  • a piece of plastic mesh can also be used.
  • the tips passing through the fleece advantageously have barbs which prevent the lattice piece from being pulled out of the fleece.
  • FIGs 1 6 and 1 7 illustrate the fact that a seepage line 53 according to the invention can also be connected to a conventional pipeline 71, and vice versa.
  • a reduction piece 73 with the narrower radius is connected to a pipeline 71 and the seepage bag is pushed into the further opening 75.
  • the waterproof mat 23 is placed around the connecting piece 75 (FIG. 17) or inserted into it (FIG. 1 6).
  • the waterproof mat 23 must be inserted into the socket 75 If necessary, it has to be cut to size. An incision parallel to the flow direction in which the nozzle wall can be inserted may be sufficient. If the water flows from the seepage bag line into the pipeline, it is advisable to place a fleece around the connection area in order to filter water that penetrates between the bag 11 and the connection piece 75.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • External Artificial Organs (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Refuse Collection And Transfer (AREA)
  • Revetment (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)

Abstract

Selon l'invention, on réalise une conduite de drainage par infiltration à l'aide de sacs (11) textiles oblongs, perméables à l'eau, que l'on remplit avec une matière en vrac (26) légère, formant des cavités pouvant être traversées par un écoulement, en particulier des morceaux de verre cellulaire, et que l'on place dans une tranchée (21). Le fond de la tranchée peut, préalablement, être étanchéifié au moyen d'une feuille ou d'un mat (23) étanche à l'eau. L'eau d'infiltration s'écoule à travers les cavités formant environ 30 % du volume total, entre les morceaux de verre cellulaire.
PCT/CH2000/000395 1999-07-23 2000-07-20 Garniture de drainage par infiltration ou conduite de drainage par infiltration Ceased WO2001007720A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP00943507A EP1125029B1 (fr) 1999-07-23 2000-07-20 Garniture de drainage par infiltration ou conduite de drainage par infiltration
AU57999/00A AU5799900A (en) 1999-07-23 2000-07-20 Infiltration drainage fitting or infiltration drainage conduit
AT00943507T ATE296382T1 (de) 1999-07-23 2000-07-20 Sickerpackung bzw. sickerleitung
DE50010394T DE50010394D1 (de) 1999-07-23 2000-07-20 Sickerpackung bzw. sickerleitung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1357/99 1999-07-23
CH135799 1999-07-23

Publications (1)

Publication Number Publication Date
WO2001007720A1 true WO2001007720A1 (fr) 2001-02-01

Family

ID=4208577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2000/000395 Ceased WO2001007720A1 (fr) 1999-07-23 2000-07-20 Garniture de drainage par infiltration ou conduite de drainage par infiltration

Country Status (5)

Country Link
EP (1) EP1125029B1 (fr)
AT (1) ATE296382T1 (fr)
AU (1) AU5799900A (fr)
DE (1) DE50010394D1 (fr)
WO (1) WO2001007720A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122888A (en) * 1960-10-24 1964-03-03 Boening Ind Inc Cover for drain tile joints
DE2027724A1 (de) * 1970-06-05 1971-12-16 Mehring, Anton, 2940 Wilhelmshaven; Böske, Johannes, 2841 Hakenburg; Roess, Hans, 2832 Twistringen Dränstrang
US4983068A (en) * 1989-04-14 1991-01-08 Kozak William G Construction material
DE3925353A1 (de) * 1989-07-31 1991-02-07 Helmut Schoenberger Drainage-packung
US5657527A (en) * 1988-03-04 1997-08-19 Randall J. Houck Methods for making light-weight drainage line units
EP0952257A2 (fr) * 1998-04-23 1999-10-27 Borghi Azio - S.P.A. Module pour réaliser des canaux de drainage dans le sol

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122888A (en) * 1960-10-24 1964-03-03 Boening Ind Inc Cover for drain tile joints
DE2027724A1 (de) * 1970-06-05 1971-12-16 Mehring, Anton, 2940 Wilhelmshaven; Böske, Johannes, 2841 Hakenburg; Roess, Hans, 2832 Twistringen Dränstrang
US5657527A (en) * 1988-03-04 1997-08-19 Randall J. Houck Methods for making light-weight drainage line units
US4983068A (en) * 1989-04-14 1991-01-08 Kozak William G Construction material
DE3925353A1 (de) * 1989-07-31 1991-02-07 Helmut Schoenberger Drainage-packung
EP0952257A2 (fr) * 1998-04-23 1999-10-27 Borghi Azio - S.P.A. Module pour réaliser des canaux de drainage dans le sol

Also Published As

Publication number Publication date
ATE296382T1 (de) 2005-06-15
EP1125029A1 (fr) 2001-08-22
AU5799900A (en) 2001-02-13
EP1125029B1 (fr) 2005-05-25
DE50010394D1 (de) 2005-06-30

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