CN212866031U

CN212866031U - Assembled two-stage retaining wall structure

Info

Publication number: CN212866031U
Application number: CN202021754760.9U
Authority: CN
Inventors: 孙洪全; 张立振; 郭惠然
Original assignee: Hebei Jiuxin Engineering Supervision Co ltd
Current assignee: Hebei Jiuxin Engineering Supervision Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-02
Anticipated expiration: 2030-08-21

Abstract

The application relates to an assembled two-stage retaining wall structure, it is including establishing the concrete foundation in the side slope bottom, establishing the one-level retaining wall body on the concrete foundation top surface and the second grade retaining wall body with one-level retaining wall body top fixed connection. This application belongs to retaining wall structure's field, and it has the structural stability that can improve whole assembled retaining wall and makes the more durable advantage of retaining wall.

Description

Assembled two-stage retaining wall structure

Technical Field

The application relates to the field of retaining wall structures, especially to an assembled two-stage retaining wall structure.

Background

At present, in the construction process of side slope protection, retaining wall structure can be used, and compare in general cast-in-one's reinforced concrete counterfort retaining wall, assembled retaining wall is widely used because of having advantages such as can shorten construction period, wall body is light little, occupation of land is less, the foundation bearing capacity requirement is lower.

The common fabricated retaining wall is formed by splicing a long-strip-shaped concrete layer poured at the bottom of a side slope and an L-shaped wallboard fixed on the concrete layer by bolts or anchor rods at the bottom.

With respect to the related art described above, the inventors consider that there is a drawback that the connection structure of the retaining wall is vulnerable to damage and is not durable.

SUMMERY OF THE UTILITY MODEL

Make retaining wall more durable in order to improve the structural stability of whole assembled retaining wall, this application provides an assembled two-stage retaining wall structure.

The application provides a pair of assembled two-stage retaining wall structure adopts following technical scheme:

an assembled two-stage retaining wall structure comprises a concrete foundation arranged at the bottom of a side slope, a first-stage retaining wall body arranged on the top surface of the concrete foundation and a second-stage retaining wall body fixedly connected with the top of the first-stage retaining wall body;

the primary retaining wall body comprises a plurality of first retaining plates arranged on the top surface of the concrete foundation along the length direction of the concrete foundation and first connecting bolts penetrating two adjacent first retaining plates, dovetail grooves and dovetail blocks matched with the dovetail grooves in use are arranged on the side surface of the bottom of each two adjacent first retaining plates at intervals, and pre-buried anchor bars are arranged at the tops of the first retaining plates;

second grade keeps off native wall body and includes that a plurality of length direction slopes along one-level keeps off native wall body establish the second fender native board at one-level keeps off native wall body top and wear to establish two adjacent second connecting bolt on the second fender native board, every two adjacent equal interval is equipped with the draw-in groove and the fixture block that uses with the draw-in groove cooperation on the side that the second fender native board is connected, the bottom that the second kept off the native board is equipped with the stock.

Through adopting above-mentioned technical scheme, one-level keeps off native wall body and is linked into a whole through first connecting bolt by a plurality of fixed mounting first fender breast boards on the concrete foundation, and uses through dovetail and forked tail block cooperation between per two adjacent first fender breast boards, mutual joint, makes the joint strength of whole one-level keeps off native wall body improve, and stability also can improve simultaneously. Correspondingly, the second soil retaining plate that also passes through second connecting bolt end to end of second grade retaining wall body forms, and through the cooperation of draw-in groove and fixture block between per two adjacent first soil retaining plates, can offset the shearing force that partly second connecting bolt received like this, makes the stability of second grade retaining wall body better, and is not fragile. In addition, still use through the cooperation between pre-buried anchor bar and the stock between one-level retaining wall body and the second grade retaining wall body, make the structural stability of whole retaining wall obtain improving, the retaining wall is not fragile also more durable.

Preferably, a plurality of connecting plates are arranged on the surface of the primary retaining wall body at intervals along the length direction of the concrete foundation.

Through adopting above-mentioned technical scheme, each first fender breast board that the connecting plate can the one-level keep off in the native wall body couples together, makes the connection between each first fender breast board more firm, and then makes the structural stability of whole one-level keep off native wall body higher.

Preferably, the top surface of the concrete foundation is provided with a groove, and the bottom surface of the first soil retaining plate is provided with a tenon matched with the groove.

Through adopting above-mentioned technical scheme, the tenon of first retaining plate bottom surface inserts in the recess of concrete, can not only play and resist the shearing force that receives along concrete foundation length direction, can also utilize the antiskid effect of tenon to make the retaining wall base have a good stress diffusion transition layer, make the overall stability of retaining wall obtain improving.

Preferably, the first retaining plate has a plurality of spaced apart retaining grooves on its surface adjacent to its edges, and the first connecting bolt has one end inserted through one retaining plate and then inserted through another retaining plate.

Through adopting above-mentioned technical scheme, first connecting bolt wears to establish and makes two adjacent first fender breast boards link together in the standing groove, and then makes between two adjacent first fender breast boards along with wearing to establish the first connecting bolt on the nut screw up and constantly draw close and firm linking together.

Preferably, a rib is vertically provided on one surface of the first soil blocking plate.

Through adopting above-mentioned technical scheme, the setting up of floor can play the bottom and the effect of side that support first fender native board, strengthens the structural strength of first fender native board, makes first fender native board more can resist the soil layer at gravity and because of the outside power that expend with heat and contract with cold and produce.

Preferably, a plurality of drainage grooves are formed on one surface of the second soil blocking plate.

Through adopting above-mentioned technical scheme, the setting up of water drainage tank enables rivers to flow down along water drainage tank, improves the drainage performance of second fender.

Preferably, the bottom of second fender native board is spaced apart and is equipped with the spacing groove that a plurality of confession pre-buried anchor bars pass through, the second keeps off native board and goes up to be equipped with along vertical decurrent direction and be used for keeping off native board fixed connection's expansion bolts with first fender.

Through adopting above-mentioned technical scheme, expansion bolts can pass the top that second kept off native board and first fender native board in proper order and couple together the two for the connection between first fender native board and the second fender native board is more firm.

Preferably, connecting rods are laid on the secondary retaining wall body along the length direction of the concrete foundation;

the connecting rod is fixedly connected with the embedded anchor bars.

Through adopting above-mentioned technical scheme, the setting of connecting rod can not only make the connection between per two adjacent second fender native boards more firm, can also make the connection stability between second fender native board and the first fender native board higher.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the joint strength of one-level retaining wall body in this application is improved because of the cooperation of first connecting bolt, dovetail and dovetail block, and stability also can improve simultaneously, and the joint stability of second grade retaining wall body is improved through the use of second connecting bolt, draw-in groove, fixture block. Moreover, the primary retaining wall body and the secondary retaining wall body are firmly connected together by using the embedded anchor bars and the anchor rods, so that the structural stability of the whole retaining wall is improved, and the retaining wall structure is not easy to damage and is more durable;

2. the connecting plate can connect the first retaining plates in the primary retaining wall body, so that the connection between the first retaining plates is firmer, and the structural stability of the whole primary retaining wall body is higher;

3. the arrangement of the drainage groove can enable water flow to flow down along the drainage groove, and the drainage performance of the second soil retaining plate is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a concrete foundation in an embodiment of the present application.

Fig. 3 is a schematic view of a connection structure between two adjacent first soil guard plates in the practice of the present application.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

Description of reference numerals: 1. a concrete foundation; 11. a groove; 2. a primary retaining wall body; 21. a first soil retaining plate; 211. a dovetail groove; 212. a dovetail block; 213. embedding anchor bars; 214. a tenon; 215. a placement groove; 216. a rib plate; 22. a first connecting bolt; 23. a connecting plate; 3. a secondary earth retaining wall body; 31. a second soil blocking plate; 311. a card slot; 312. a clamping block; 313. an anchor rod; 314. a water discharge tank; 315. a limiting groove; 316. an expansion bolt; 32. a second connecting bolt; 33. a connecting rod.

Detailed Description

The present application is described in further detail below with reference to the attached drawings. It should be understood that, in a general building construction process, the connection mode between the embedded parts mostly adopts a welded connection mode, and after welding, concrete is poured again to prevent the steel bars from being exposed in the air, so that after the welding operation of the embedded parts is involved in the embodiment of the application, the operation of covering with the concrete is also adopted, and the embedded parts are not exposed in the air after being fixedly connected, so that the connection structure is more durable and is not easily corroded and damaged, and therefore, the operation process of covering and pouring with the concrete is not repeated in the following.

Referring to fig. 1, a two-stage assembled retaining wall structure disclosed in the embodiments of the present application includes a concrete foundation 1, a first-stage retaining wall 2, and a second-stage retaining wall 3. Wherein, concrete foundation 1 sets up on the soil layer of side slope bottom, and one-level retaining wall body 2 sets up on concrete foundation 1's top surface, and second grade retaining wall body 3 keeps off retaining wall body 2's top fixed connection with one-level.

Referring to fig. 1 and 2, the concrete foundation 1 may be a rectangular concrete slab, which is fixed on the surface of the soil layer at the bottom of the side slope, and generally a groove for embedding the concrete foundation 1 is dug in advance on the soil layer, and in order to make the concrete foundation 1 more firm, a steel bar with a length 3 to 4 times as long as the thickness of the concrete foundation 1 is inserted into the soil layer at the bottom of the side slope after penetrating through the concrete foundation 1 during the construction process, so that the concrete foundation 1 is more firmly installed. In addition, a groove 11 is further arranged on the top surface of the concrete foundation 1, and the groove 11 is used for installing the primary retaining wall body 2.

Referring to fig. 1 and 3, the primary retaining wall 2 includes a plurality of first retaining plates 21, four first retaining plates 21 in the embodiment of the present invention, the number of the first retaining plates 21 is four, the four first retaining plates 21 are disposed on the top surface of the concrete foundation 1 along the length direction of the concrete foundation 1, each first retaining plate 21 is composed of a bottom plate and a side plate vertically connected to the bottom plate, and the bottom plate is fixedly connected to the concrete foundation in a bolt connection manner. The side surfaces of the bottom plates of two adjacent first retaining plates 21 are provided with dovetail grooves 211 and dovetail blocks 212 matched with the dovetail grooves 211 at intervals, and the dovetail blocks 212 can be inserted into the dovetail grooves 211, so that the two adjacent first retaining plates 21 are tightly connected together.

Referring to fig. 3, in addition, the top of the side plate of the first soil retaining plate 21 is further provided with a pre-buried anchor bar 213, and the pre-buried anchor bar 213 may be a U-shaped anchor bar. A part of the embedded anchor bars 213 is embedded in the top of the first soil guard plate 21, and the other part thereof vertically extends upward. In addition, the bottom surface of the bottom plate of the first retaining plate 21 is further provided with a tenon 214 matched with the groove 11 for use, the cross section of the tenon 214 can be rectangular or circular, or can be a special-shaped cross section, the tenon 214 and the bottom plate are integrally cast, the tenon 214 can be inserted into the groove 11, and the bottom surface of the bottom can be abutted against the top surface of the concrete foundation 1.

It will be understood that the first soil guard plates 21 are connected to each other by the first connecting bolts 22, and the first soil guard plates 21 are formed with a receiving groove 215 on the surface thereof for receiving the first connecting bolt 22. Further, in order to enhance the structural strength of the first soil retaining plate 21, a rib 216 is vertically disposed on one surface of the first soil retaining plate 21, the rib 216 may be a triangular plate, the rib 216 and the first soil retaining plate 21 are integrally cast, and the rib 216 is disposed on one surface of the first soil retaining plate 21 away from the soil layer.

The first connecting bolt 22 is composed of a screw and a nut, and one end of the first connecting bolt 22 passes through the placing groove 215 of one of the first retaining plates 21 and then is placed in the placing groove of the other adjacent first retaining plate 21, and then the nut is tightened to firmly connect the two adjacent first retaining plates 21. Of course, the number of the placing grooves 215 and the first coupling bolts 22 may be plural in order to make the structural stability of the entire retaining wall structure higher.

Referring to fig. 1, the connecting plates 23 are elongated plates, the connecting plates 23 are spaced apart from each other along the length direction of the concrete foundation 1 on the surface of the primary retaining wall 2, and the connecting plates 23 can be fixedly mounted on the surface of each first retaining plate 21 on the same side as the rib 216 by using bolts.

Referring to fig. 1 and 4, the secondary retaining wall 3 includes second retaining plates 31, second coupling bolts 32, and coupling rods 33, and the number of the second retaining plates 31 may be plural, which is four in the present embodiment as the number of the first retaining plates 21. The four second soil blocking plates 31 are obliquely arranged at the top of the primary soil blocking wall 2 along the length direction of the primary soil blocking wall 2. The bottom of the second soil blocking plate 31 is provided with a folding plate which is horizontally arranged, and the second soil blocking plate 31 can be fixedly connected with the first soil blocking plate 21 through the folding plate. The two side surfaces of the second soil blocking plates 31 are provided with the clamping grooves 311 and the clamping blocks 312 matched with the clamping grooves 311 at intervals, and the clamping blocks 312 can be inserted into the clamping grooves 311, so that the connection between two adjacent second soil blocking plates 31 is tighter.

Referring to fig. 4, in addition, the bottom of the second soil blocking plate 31 is provided with anchor rods 313, the anchor rods 313 can be made of steel bars, and the first soil blocking plate 21 and the second soil blocking plate 31 can be fixedly connected by welding the anchor rods 313 and the embedded anchor bars 213 together. Certainly, in order to make the connection between the first soil retaining plate 21 and the second soil retaining plate 31 more firm, the surface of the second soil retaining plate 31 is also provided with a plurality of rectangular grooves through which the second connecting bolts 32 penetrate, and this kind of structural connection structure is the same as the installation method of the first connecting bolts 22 on the first soil retaining plate 21, and will not be described herein again.

Referring to fig. 1, it can be understood that the second soil blocking plate 31 is inclined to adapt to the slope of the side slope, and the existence of the slope is accompanied by the need of drainage, therefore, a plurality of drainage grooves 314 are formed on the surface of the second soil blocking plate 31, and the drainage grooves 314 are formed on the surface of the second soil blocking plate 31 along the downward inclination of the side slope.

Further, for making the connection structure between first retaining plate 21 and the second retaining plate 31 more firm, holistic assembled second grade retaining wall structure is more stable, has still set up the spacing groove 315 that a plurality of confession pre-buried anchor bars 213 pass through on the second retaining plate 31 at the interval. In the embodiment of the present application, the anchor bar 313 on the second soil blocking plate 31 extends out from the side of the limiting groove 315. In addition, the second soil guard 31 is further provided with an expansion bolt 316 for fixedly connecting with the first soil guard 21 in a vertically downward direction.

It can be understood that, in order to improve the overall structural stability of the embodiment of the present application, the connecting rods 33 are laid on the secondary retaining wall 3 along the length direction of the concrete foundation 1, and one end of each connecting rod 33 sequentially penetrates through all the embedded anchor bars 213 and is finally welded to the embedded anchor bars 213. The stability of whole retaining wall structure is improved.

The implementation principle of an assembled two-stage retaining wall structure of the embodiment of the application is:

firstly, a constructor levels a soil layer of a side slope, then digs a strip-shaped groove at the bottom of the side slope, and then places a concrete foundation 1 in the groove and fixes the concrete foundation by using a steel bar. Then, a plurality of first retaining plates 21 are fixed on the top surface of the concrete foundation 1, and the adjacent two first retaining plates 21 are firmly connected by the first connecting bolts 22 until all the first retaining plates 21 are connected, and the connecting plate 23 is fixedly connected to each of the first retaining plates 21 by the bolts.

Then, the second soil blocking plates 31 are installed, the second soil blocking plates 31 are laid on the side slope, the limit grooves 315 are used for clamping the embedded anchor bars 213, and then the second connecting bolts 32 are used for fixedly connecting the plurality of second soil blocking plates 31 together end to end in sequence to form the primary soil blocking wall body 2. And then welding the anchor rods 313 and the embedded anchor bars 213 together, and finally welding the connecting rods 33 and the embedded anchor bars 213 together.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an assembled two-stage retaining wall structure which characterized in that: the concrete retaining wall comprises a concrete foundation (1) arranged at the bottom of a side slope, a primary retaining wall body (2) arranged on the top surface of the concrete foundation (1) and a secondary retaining wall body (3) fixedly connected with the top of the primary retaining wall body (2);

the primary retaining wall body (2) comprises a plurality of first retaining plates (21) arranged on the top surface of the concrete foundation (1) along the length direction of the concrete foundation (1) and first connecting bolts (22) penetrating through the two adjacent first retaining plates (21), dovetail grooves (211) and dovetail blocks (212) matched with the dovetail grooves (211) are arranged on the side surface of the bottom of each two adjacent first retaining plates (21) at intervals, and embedded anchor bars (213) are arranged at the top of each first retaining plate (21);

second grade retaining wall body (3) include that a plurality of length direction slopes along one-level retaining wall body (2) establish second retaining wall board (31) at one-level retaining wall body (2) top and wear to establish two adjacent second connecting bolt (32) on second retaining wall board (31), every two adjacent equal interval is equipped with draw-in groove (311) and fixture block (312) that uses with draw-in groove (311) cooperation on the side that second retaining wall board (31) are connected, the bottom of second retaining wall board (31) is equipped with stock (313).

2. A two-stage assembled retaining wall structure according to claim 1, wherein: a plurality of connecting plates (23) are arranged on the surface of the primary retaining wall body (2) at intervals along the length direction of the concrete foundation (1).

3. A two-stage assembled retaining wall structure according to claim 1, wherein: be equipped with recess (11) on the top surface of concrete foundation (1), be equipped with tenon (214) with recess (11) matched with on the bottom surface of first fender soil board (21).

4. A two-stage assembled retaining wall structure according to claim 1, wherein: a plurality of placing grooves (215) are arranged on the surface of the first retaining plate (21) at intervals and close to the edge of the first retaining plate, and one end of the first connecting bolt (22) passes through the placing groove (215) on one retaining plate (21) and then is placed in the placing groove (215) of the other adjacent retaining plate (21).

5. A two-stage assembled retaining wall structure according to claim 1, wherein: and a ribbed slab (216) is vertically arranged on one surface of the first retaining plate (21).

6. A two-stage assembled retaining wall structure according to claim 1, wherein: and a plurality of drainage grooves (314) are formed in one surface of the second soil blocking plate (31).

7. A two-stage assembled retaining wall structure according to claim 1 or 6, wherein: a plurality of spacing grooves (315) for pre-buried anchor bars (213) to pass through are arranged at intervals at the bottom of the second soil retaining plate (31), and expansion bolts (316) fixedly connected with the first soil retaining plate (21) are arranged on the second soil retaining plate (31) along the vertical downward direction.

8. A two-stage assembled retaining wall structure according to claim 1, wherein: a connecting rod (33) is laid on the secondary retaining wall body (3) along the length direction of the concrete foundation (1);

the connecting rod (33) is fixedly connected with the embedded anchor bar (213).