JPH04500544A - Reinforcement of continuous poured concrete walls - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] name of invention Reinforcement of continuous poured concrete walls [Background of defense] The present invention relates to a concrete m-strength device.

Although the present invention is not particularly limited, it can be used frequently for reinforcing continuously hammered concrete walls. We mention such an application for illustrative purposes. However, the present invention uses 9 intermittent construction methods. It should be understood that it can be used in other applications, such as for walls cast by ! It is i.

In excavations for construction stools, bottles and tunnels, often stable! ! to carry out punishment Once a supporting wall has been constructed on the premises, it will be necessary to carry out actual excavation. Like that A wall may also be formed as a foundation wall to transfer the load to a suitable support below. Yes, in this case it is 1! No punishment will be carried out. This type of wall is connected to underground water. Sometimes it is made to prevent movement. Such walls are traditionally constructed by drilling rows of holes. . Reinforcement piles were driven in a row with no gaps between them. This construction method is used for supporting walls. Once installed, the pile rows are fitted with firm horizontal reinforcement to maintain pile alignment. need to be added to There are great difficulties in creating such watertight walls. The second method is unsuitable for making barrier walls.

[Prior art] Currently, there is no technology in use for continuous & TiE cutting of trenches with cross sections suitable for supporting walls. A suitable machine is the subject of Australian Patent No. PH6409.

That machine trenches continuously! ! Although it is possible to remove the Reinforcement reinforcing bars are inserted into the wrench, and concrete must be poured around them. No.

Ideally, a single wall with continuous reinforcement is desired, but only for the desired wall length excavate a long trench.

Continuous reinforcing bars are usually installed in long open trenches in most soil types. is not practical because parts of the wall will collapse.

Therefore, the excavated trench should be placed as close as possible to the rear of the excavator with reinforcing steel and concrete. It is highly desirable that a cleat be inserted, so that the excavator is several meters from the starting point. - As the distance of concrete is poured around and between the cages. in the trench Since there is a digging arm on the excavator in front, the concrete will solidify the digging arm. Shielding means are required to prevent contamination.

This procedure results in the formation of reinforced concrete in which the complement is divided, and this wall Special table for bending, shearing, and tension 1,4-500544 (3) This is unacceptable because it cannot provide the necessary strength for supporting mH.

[Summary of the invention] The present invention alleviates the above-mentioned drawbacks and provides reliable concrete reinforcement means and uses. To provide a method for fabricating tall and efficient underground continuously reinforced concrete walls. Other objects and advantages of the present invention will be apparent below.

In view of the above objectives and other objectives, broadly speaking, in a first aspect, one aspect of the present invention is as follows. The purpose is to provide a reinforcing frame for reinforcing concrete walls placed in trenches.

This reinforcement frame.

Internal reinforcement means for said concrete wall.

It is possible to cooperate with the opposite side walls of the trench, and one side in the reinforcement frame a shielding means for preventing the outflow of liquid concrete placed in the reinforcement frame; A connecting means for connecting reinforcing frames that are in contact with each other.

including.

Preferably, the shielding means include a portion of the trench incorporating a reinforcing frame and an excavation portion in the forward direction. A screening plate with sufficient radius and height to prevent the flow of concrete between the have The shielding plate is preferably attached to one side of the shielding frame, but of course If desired, the shielding frame can be arranged intermediately between the two sides of the shielding frame. The shield plate is When attached to one part of the shielding frame L:, the coupling means is formed integrally with the shielding plate. and engages with a complementary slide member attached to the end of the adjacent second complementary value frame. m! [This is preferably formed as a sliding member such as a sliding member.] In such cases, each reinforcing frame can be used as a shielding frame.

Preferably, the sliding member is formed by processing or assembling a closing plate and has a nine-dimensional shape. A part that can be slidably engaged with the retaining means of the reinforcing frame and thereby provides a joint. The connecting part controls the relative movement of the two reinforcing frames in the horizontal plane. When the gap is filled with a material with high compressive force such as concrete birch, interlocks two jjljll elements. If desired, the reinforcing frame can be cast The blocks combined with tension members and wall anchors are placed inside the concrete. (for placement) made of two Styrofoam-like materials so that a sinus is formed A disposable insert can be included.

If desired, :4 shielding plates are placed intermediate the opposite sides of each reinforcing frame. Like this In such cases, the connection between the reinforcing frames is made using an overlapping annular portion that protrudes from both adjacent reinforcing frames. Obtained by holding members such as materials together.

The coupling means may be in the shape of a cage with mutually compatible concave shapes; Explore the form of a pair of metal plates attached to each opposing side of the reinforcement.

It can be constructed by biasing complementary binding measures.

The edges of the shield that will be left in the finished wall will be coated with additional material to retard corrosion of the shield. It can be covered with a solid or non-corrosive material. As an alternative to that , place the shielding board inside the trench wall so that the concrete can cover the shielding board. It is also possible to make a bond end.

Broadly speaking, the invention resides in another aspect in a method of fabricating concrete walls. death,! ! How?

(a) III long trench 1! Step of cutting to form a trench.

(b) providing a reinforcing frame as described above, including shielding means and coupling means;

(C) Inserting the reinforcing frame at the starting point of the trench.

((1) On the side of the trench of the shielding means that is far from the advancing surface, the reinforcing frame The step of pouring concrete into and around the area.

(e) Joining another reinforcing frame to the inserted reinforcing frame (f) Connecting the other reinforcing frame Inside and around the other reinforcing frame on the side far from the advancing surface of the trench of the shielding means. Step of pouring concrete around the enclosure.

(g) Repeat steps e-f as many times as necessary to complete the reinforcement wall. Tep.

including.

Preferably, the elongated trench is as described in Australian Patent No. P) 16409. By continuous construction methods such as the use of excavators! ! be punished. preferably concrete The route is.

I moved forward to allow insertion of the next reinforcing frame into the trench! Insert at the rear of the punishment machine be done.

Broadly speaking, the present invention, in another aspect, provides reinforcement having a length equal to the length of the wall. , concrete sections substantially divided by screening means combined with said reinforcement. Including minutes.

In yet another aspect of the invention, the shielding means and the sides of the excavated wall due to wall irregularities are provided. A closing means is provided to temporarily close any gap existing between the top and the bottom. can be done. The closure means can be slidably secured along a vertical slide member The sides have flexible closures that can provide a partition to help prevent the passage of concrete. Or support it on the bottom. Can contain frames.

Preferably, the closure is depressurized while the closure is inserted into the trench. It is then expanded. l! It can take the form of a tension seal. The part adjacent to the forward plane The closure can be removed when the concrete has partially solidified.

In another aspect of the invention, the intermediate closure is located remote from the vertical slide member. It is provided to provide a full-scale partition over the entire trench. Intermediate closure device may take the form of a frame with flexible closures along the sides or bottom. Wear. The flexible closure may be of the inflatable type or may be closed off in the trench by an actuator. It may be pressed against the sides or against the bottom. Intermediate closure device is lowered perpendicularly to the trench in a reduced state and then to shield the cross section of the trench. Inflated by pressure fluid. It can have a flexibility group.

In yet another aspect, the present invention includes the following steps.

(&) Forming the concrete wall by the above-mentioned method.

(b) excavating one side of the wall to a depth equal to a predetermined portion of the depth of the wall; P.

(C) underground on the unexcavated side of said wall! ! underground anchorage to moor the top of the Steps to install the car.

(d) Continue to excavate the partially excavated side of the n arrangement to near the bottom of said wall. step to remove.

(e) Place the excavator at the bottom of the excavated area and excavate to install the underground lower wall. Steps to do.

(f) position the lower wall in the manner described above so that the top of said lower wall overlaps the bottom of the previous wall; Thus the step of forming.

as well as (g) Step of repeating steps b to d to form a multi-stage wall.

If more levels of support walls are desired, repeat steps b-e above as many times as necessary. formed by returning. If necessary, excavation to the mid-level of one wall shall be carried out. Excavate to the depth of one wall by supporting the part of the wall above the level of the wall with anchors. It is possible to process the cutting in multiple stages.

[Simple drawing aIai] In order that the invention may be more easily understood and practiced, preferred embodiments of the invention will now be presented. Please refer to the attached drawings.

Figure 1 is a side view of the reinforcing frame.

21st! l is a plan view of the reinforcing frame inside the trench.

Figure 3 is a front view of the closing device.

Figure 4 is a cross-sectional plan view of the closure device.

5th W is a front view of the intermediate type closure device.

Figure 6 is a plan view of the intermediate closure device.

Figure 7 shows a cross-sectional view of the two-layer wall structure.

respectively.

[11 of preferred practices] As shown in FIG. J is assembled by welding. Channel-shaped mold members 9 are placed opposite each other. The shielding plate 13 provided along the vertical line is horizontal at one end of the reinforcing frame assembly. It is welded to the end of iron P112.

The retaining space bar 14 is attached to the other side of the reinforcing frame assembly so as to be physically aligned with the mold member 9. Welded on the ends.

In FIG. 2, the shielding plate 13 of the reinforcing frame assembly 10 is located inside the trench 1f. concrete 181: thus surrounding the reinforcing frame assembly 10, as well as the adjacent reinforcing frame The locking bar 15 is shown attached to the solid body 16 and the locking state C is shown.

Figures 3 and 4 show how to prevent concrete from passing around the side of the shield plate. Showing a front and top view of one type of closure device 30 for closing the closure means! E Zhang A possible edge closure (inflatable seal) 32 is attached to the flap via a port 33. It has a frame 31. The closing device 3o is inserted into the trench 34 in a reduced state. Are suitable.

If necessary, the inflatable seal 32 can be inserted into the I! Tension reseal 32 expands and acts on the folds of the trench to prevent concrete from flowing around the sides of the shield plate. can be connected to the pressure liquid supply section via the connecting member 35 and the manifold 3G. be.

The closing portion N30 is a locking member that slides into engagement with the inside of the bending (turning) 43 of the shielding plate 4o. It can be attached to the shielding plate 40 of the reinforcing frame 41 via the flange 42. this Due to various engagements, the closure [LO is expanded and the trench 34 is closed around the reinforcing frame 41. The enclosure can be filled with concrete. 32 inflatable seals and 30 closure devices The concrete is prevented from flowing into the open section of the trench 45 by the The we tension seal 32 is secured by a bolt 33 threadedly engaged with a tap plate 45 inside the we tension seal 32. and is attached to the frame 31.

Figure 5 and 6ri! The intermediate closure assembly 50 shown in J includes an end plate 52 and a side plate 53. A frame 51 is provided. The 5 side plates are hinged to the end plate 52 at the joint. Can be joined or bent to suit the required movement of the side panels. You can also. A series of actuators 54 are connected to the side via support plates and pivot pins 56. The zero hydraulic fluid attached to plate 53 is connected to a common hydraulic system connected to suitable hydraulic equipment. is supplied to operation 1i 154 through flexible tube 57 connected to supply tube 58 ! It will be discharged from now on. Due to the extension of the operating device 54, the free end 59 of the side plate 53 is Contact the wall 60 of the wrench.

During the fabrication of the underground reinforcing wall according to the second invention, the trench 17 is connected to the shielding plate 13. in front of the reinforcing frame assembly, which is placed in advance towards the forward side of the trench. It is being excavated. When a trench longer than one reinforcing frame is excavated, a new A new reinforcement frame assembly 16 is hoisted over the open section of the trench and this new reinforcement When the frame solid body 16 is lowered into the trench, the one-car reinforcing frame assembly 10.16 is The lower end of the retaining bar 15 is connected to the shielding plate 13 so that the retaining bar 15 is joined to its full length. It is slid into the upper end of the groove. The concrete was then placed on one side of the shielding plate 140. injection into and around the new reinforcing frame assembly 16 to extend the continuous reinforcing wall. It will be done.

If the trench walls or bottom are uneven, they should be closed before the concrete is poured. A stopper assembly 30 is installed on the new replacement with an inflatable seal 32 to close the gap. The strong frame 41 is slidably engaged within the bend 43 of the shielding plate 40.

M available! ! If you need to mark a wall section that is shorter than the frame assembly, use the intermediate type. A closure device 50 is available. The extra length of the reinforcing frame assembly is cut off and shielded. As soon as the short reinforcing frame 49 without a cover plate is left, this short reinforcing frame 49 is first t2t+ , , is slidably engaged with the reinforcing frame 49, and the intermediate closure device 50 is attached to the front end of the short reinforcing frame 49. It is inserted into the trench 60 at. The operating device 54 extends from the free end of the side plate 53. 59 to bring the sides of trench 60 into contact. This contact creates a layer in the trench. In addition to restricting the movement of concrete at the same time, liquid concrete is also Along the trench of this intermediate closure 50, which occurs when subjected to cleat pressure. A closure is provided to prevent any movement. In this state, 5! to complete It becomes possible to pour concrete into and around the short reinforcing frame 49. . When the concrete solidifies, the intermediate closure device 50 is connected to the sides of the trench 60. After the actuator 54 is placed in the retracted position to pull the side plate 53 away from contact, the trench can be removed from.

If it is necessary to excavate to a depth that exceeds the maximum capacity of the excavator, use the method shown in Figure 7. A bunk wall is created. The drilling equipment starts operation at ground level 711: First, a trench in which a 9M strong concrete wall 72 will be formed is excavated. in the trench The soil should be at a depth less than half the height of the wall! ! He was punished and became a second level Fuko, underground. An anchor 4 is placed to support the top of the wall 72. The excavation then begins on wall 72. Proceeding to the third level 75 of the bottom anchorage, the second row of underground anchors 76 are installed on the wall) 2. The 6wA cutting machine installed to support the lower part operates on the primary and third level i; Start the trench where the first concrete wall 7 will be installed! ! profit drilling is Fourth level 78I: Proceed, third row of underground anchors 79 support the upper part of 5i77 Excavation cycles and underground anchors to the 0th fifth level 80 installed to By installing 81, the bunk wall is completed. Deeper I! If a bug is desired, this procedure The edges are turned over to create yet another level of support wall.

The foregoing description has been made by way of illustration of the invention and does not include all such aspects or other aspects. a) These variations are disclosed in the appended claims, as would be obvious to a person skilled in the art. It is clear that these inventions are considered to be within the scope of the invention.

FIG. 7 =---=-=11si=,,,,-,PCT/AU88100189ANN EX　To　THεINTERNATIONAL　5EARCHREPORT 0NINTERNATIONAL APPLICATION 1 ON NO, PCT U 88 00189

Claims (1)

[Claims] 1. A reinforcing frame for reinforcing concrete walls placed in a trench. ， Reinforcement means for internal reinforcement of the concrete walls and cooperation with the opposite side walls of the trench. liquid concrete poured on one side around the reinforcing frame. a shielding means for preventing the flow of water; a connecting means for connecting the reinforcing frame to another adjacent reinforcing frame; Reinforced frame with 2. The shielding means is of sufficient convergence and height to substantially prevent the flow of liquid concrete. 2. The reinforcing frame according to claim 1, further comprising a shielding plate having a shielding plate. 3. Claim characterized in that the edge of the shield plate terminates inside the side wall of the trench. Reinforcement frame described in Section 2. 4. An edge of the shield plate is in contact with the side wall and is exposed within the completed wall. The reinforcing frame according to claim 2, characterized in that: 5. The shielding plate is arranged between opposing sides of each reinforcing frame. 3. The reinforcing frame according to claim 2. 6. The reinforcing means has a rectangular cage shape, and the shielding plate runs along one side of the cage. 3. The reinforcing frame according to claim 2, wherein the reinforcing frame is arranged as follows. 7. The coupling means is attached to the shielding plate and adjacent to the other reinforcement. having a sliding coupling engageable with a complementary sliding coupling mounted on the frame; The reinforcing frame according to claim 6, characterized in that: 8. The slide joint portion controls relative movement of the two reinforcing frames in a horizontal plane. Claim 7, characterized in that it is engageable with a complementary sliding coupling to limit the Reinforcement frame as described. 9. The slide coupling portion can be inserted into and engaged with an annular member protruding from the other reinforcing frame. 9. The reinforcing frame according to claim 8, further comprising a bar-shaped member capable of supporting the reinforcing frame. 10. The sliding joints of the reinforcing frames adjacent to each other have a compatible internal bending shape. comprising complementary engagement means formed as a pair of metal plates, said pair of metal plates being said complementary engagement means; Claim 7, characterized in that the reinforcing means are attached to opposite sides of the reinforcing means. The reinforcing frame described in 8 or 9. 11. By filling the gap between the complementary slide joints with concrete, etc. Claims 7 to 10 characterized in that the connecting portion of the rim locks both adjacent reinforcing frames. Reinforcement frame as described. 12. The reinforcing frame forms a recess in the poured concrete and connects the tension member to the concrete. Disposal for positioning anchor blocks combined with cleat wall anchors 12. Reinforcement frame according to claim 1, characterized in that it comprises possible inserts. 13. Steps below: (a) excavating an elongated trench to form a trench; (b) A step for supplying a reinforcing frame according to claims 1 to 12, comprising a shielding means and a coupling means. Tsupu, (c) inserting the reinforcing frame at the starting point of the trench; (d) inside said reinforcing frame on the side remote from the advancing face of said trench of said shielding means; pouring concrete into and around the area; (e) coupling another reinforcing frame to the inserted reinforcing frame; (f) On the side far from the advancing surface of the trench of the shielding means of the other reinforcing frame, pouring concrete into and around the reinforcing frame; (g) Repeat steps a to f as many times as necessary to complete the reinforced wall. Tep, Methods of forming reinforced concrete walls including. 14. A closing device that temporarily closes between the shield plate and the side and bottom of the trench. The reinforcing frame slides along the vertical slide member and engages with the concrete. frame supporting a flexible seal on the side or bottom that effectively prevents the passage of Closing device including. 15. When the flexible seal part is inserted into the trench, the pressure is reduced. 14. Both of them are inflated or filled after insertion. Closing device. 16. along the trench on the side far from the vertical slide member attached to the reinforcing frame. to provide a temporary barrier to prevent the flow of concrete beyond the reinforcing frame, and An intermediate closure device comprising a frame having a flexible seal along the top or bottom. 17. 17. The method of claim 16, wherein the flexible seal is inflatable. Mold closure device. 18. The flexible seal is pressed against the side or bottom of the trench by an actuator. 17. The intermediate mold closure device according to claim 16, characterized in that: 19. Place the reinforcing frame along the trench on the side far from the vertical slide member of the reinforcing frame. An intermediate closure device that provides a temporary barrier to prevent concrete from flowing over the Therefore, it is inserted into the trench in a reduced state and the cross section of the trench is closed after insertion. intermediate closure device containing a flexible tube that is hydraulically expanded to 20. Steps below: (8) A step for forming one wall of concrete by the method according to claim 13. Tep, (b) excavating one side of the wall to a depth equal to a predetermined part of the depth of the wall; step, (c) underground on the unexcavated side of said one wall for mooring the upper part of said wall; Steps of installing the anchor, (d) continue along the side of said one wall on the partially excavated side to near the bottom of that wall; Step to excavate (e) Place the excavator at the bottom of the excavation part and dig the lower wall of the underground part. (f) the upper part of said one lower wall is connected to said one wall; forming the lower wall of said - by the method described above so as to overlap the bottom of said -; ,as well as (g) repeating steps b to d to form a multi-stage wall; A method of fabricating a multi-stage concrete support wall including. 21. Steps b to e are repeated as many times as necessary to form another stage. A method for manufacturing a multi-stage concrete support wall according to claim 20, characterized in that: Law. 22. Excavate up to the middle level of a wall and anchor the wall above that level. The feature is that the deep excavation of a single wall is carried out in multiple stages while supporting it. A method for manufacturing a multi-stage concrete support wall according to claim 20 or 21.