CN215165799U

CN215165799U - Reinforced retaining wall

Info

Publication number: CN215165799U
Application number: CN202120848317.6U
Authority: CN
Inventors: 谭俊; 谢胜; 周涛; 詹锦; 康湘辉
Original assignee: China Railway No 5 Engineering Group Co Ltd; Fourth Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Current assignee: China Railway No 5 Engineering Group Co Ltd; Fourth Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-12-14
Anticipated expiration: 2031-04-23

Abstract

The utility model discloses a reinforced retaining wall, which comprises a filler, a wall panel and a reinforced lacing wire, wherein the filler is arranged on one side of the wall back of the wall panel, a layer of gravel layer or a gravel layer is paved at the bottom of the filler to be used as a buffer water filtering layer, the filler is a laminated filler which is distributed in a laminated manner and has consistent compaction degree, adjacent filler layers are separated by geogrids, and a reinforcement cage is also formed in the filler layers; the wall panel is of a three-layer composite structure, the back side of the wall is a reinforced concrete wall surface, the wall surface is a cast-in-place reinforced concrete wall surface, and a steel slag concrete layer is filled between the reinforced concrete wall surface and the cast-in-place reinforced concrete wall surface to serve as a filling layer; one end of the reinforcing tie bar is welded with the steel bar net cage, and the other end of the reinforcing tie bar penetrates through the wall panel and is fixed on the surface of the cast-in-place reinforced concrete wall surface. The utility model discloses can adapt to weak ground deformation very much to have the durability and the anti-seismic performance of preferred.

Description

Reinforced retaining wall

Technical Field

The utility model relates to a slope retaining wall technique among the road administration construction field specifically is a reinforced retaining wall.

Background

In the road administration construction process, a considerable part of construction projects determined by special geographical positions need to be constructed in valleys, mountains and hilly lands, the height difference of the natural ground is large, slope surfaces are accompanied at a plurality of edge positions, and therefore a plurality of construction projects need to be protected by constructing earth retaining wall structures, wherein reinforced earth retaining walls are flexible reinforced structures which are economical and have good earthquake resistance and are used more frequently.

The reinforced retaining wall in the prior art mainly comprises three parts, namely a reinforcing tie bar, filler and a wall panel, wherein the reinforcing tie bar and the filler which are dispersedly arranged in the filler form a reinforcing tie bar body together, the wall panel is directly fixed by the reinforcing tie bar, the horizontal soil pressure borne by the wall panel is balanced by the friction force between the filler and the reinforcing tie bar, and the soil pressure generated by the filler at the tail part of the reinforcing tie bar is resisted by a composite structure of the reinforcing tie bar and the filler. The traditional reinforced retaining wall adopts a single rigid or flexible panel, the rigid wall surface reinforced retaining wall has poor capability of adapting to the uneven settlement of a soft foundation, and the inclined or cracked rigid wall surface is caused by the large uneven settlement of the foundation in the longitudinal direction or the transverse direction; while the flexible wall surface reinforced earth retaining wall has strong capability of coordinating the uneven settlement of the foundation, the durability is poor, and the wall surface is easy to bulge, age and damage and is not suitable for being used as permanent engineering.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a reinforced retaining wall, this kind of reinforced retaining wall has higher intensity and structural stability, can be used to solve the shortcoming in the above-mentioned background art.

The utility model provides a technical problem adopt following technical scheme to realize:

a reinforced retaining wall comprises a filler, a wall panel and a reinforcing tie bar, wherein the filler is arranged on one side of the wall back of the wall panel, a gravel layer or a gravel layer serving as a buffering water filtering layer is paved at the bottom of the filler, the filler is a laminated filler which is distributed in a laminated manner and has consistent compaction degree, adjacent filler layers are separated by geogrids, and a reinforcement cage is formed in each filler layer; the wall panel is of a three-layer composite structure, the back side of the wall is a reinforced concrete wall surface, the wall surface is a cast-in-place reinforced concrete wall surface, and a steel slag concrete layer is filled between the reinforced concrete wall surface and the cast-in-place reinforced concrete wall surface to serve as a filling layer; one end of the reinforcing tie bar is welded with the steel bar net cage, and the other end of the reinforcing tie bar penetrates through the wall panel and is fixed on the surface of the cast-in-place reinforced concrete wall surface.

By way of further limitation, the filler is backfill soil around the construction site.

As a further limitation, the reinforced concrete wall surface is a steel bar cage concrete wall surface or a rubble concrete wall surface.

As a further limitation, the wall panel is provided with a cap stone at the top for compaction protection.

As a further limitation, the bottom of the wall panel is provided with an underground concrete base as a fixing foundation, and the upper part of the underground concrete base extends out of the reinforcement seat and is fixedly connected with the wall panel into a whole through the reinforcement seat.

As a further limitation, the reinforcing lacing wires are preferably thin-wall I-shaped steel or thin-wall channel steel.

The thickness ratio of the reinforced concrete wall surface of the wall panel to the filling layer is 1: 3-1: 4, and the thickness ratio of the reinforced concrete wall surface to the cast-in-place reinforced concrete wall surface is 1: 1-2: 1.

The utility model discloses in, buffering drainage bed lower part is provided with the drainage french drain.

Has the advantages that: the utility model has the advantages of simple construction, reasonable design, good integrity, good strength and stability, and the multi-layer wall body on the outer side is separately formed in multiple times, thus overcoming the problems of large construction difficulty, long construction period, high requirement on foundation bearing capacity, high engineering cost and large occupied area of the existing pouring masonry structure; and the formed reinforced retaining wall can adapt to foundation deformation and larger post-construction settlement, the stability of a soil body is improved, the anti-seismic performance is superior, the durability is good, the reinforced retaining wall can adapt to soft foundations, and the uneven settlement resistance is strong.

Drawings

Fig. 1 is a schematic diagram of a preferred embodiment of the present invention.

Wherein: 1. a filler; 2. a geogrid; 3. a steel bar net cage; 4. reinforcing the lacing wires; 5. buffering a water filtering layer; 6. a drainage blind ditch; 7. a base soil layer; 8. a cap stone; 9. reinforcing the concrete wall surface; 10. a filling layer; 11. the reinforced concrete wall surface is cast in situ; 12. a position-retaining plate; 13. a steel bar seat; 14. buried concrete foundation.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Referring to fig. 1, a reinforced retaining wall, which is formed on a foundation layer 7 in the present embodiment, is pre-formed with drainage blind ditches 6 between the foundation layers 7, and a crushed stone layer is formed on the drainage blind ditches 6 as a buffering and filtering layer 5.

The reinforced retaining wall comprises a filler 1, a wall panel and a reinforcing tie bar 4, wherein the filler 1 is formed on a buffer water filtering layer 5 and is paved and pre-compacted for the backfill soil around a construction site in a stacking way, the stacked filler 1 is provided with geogrids 2 between layers for interlayer separation, and meanwhile, the compaction degree of different layers of the filler 1 is consistent so as to ensure the uniformity of internal stress. A reinforcing mesh cage 3 is further formed in the filler 1, the lower portion of the reinforcing mesh cage 3 is embedded into the foundation soil layer 7 and is kept upright through the filler 1 of a compacted laminated structure, the reinforcing mesh cage 3 is welded with the reinforcing tie bars 4, the reinforcing tie bars 4 can be thin-wall I-shaped steel or thin-wall channel steel, in the embodiment, the reinforcing tie bars 4 are thin-wall I-shaped steel, and the other end, opposite to the welding end, of each reinforcing tie bar 4 extends in the filler 1 and extends out of a wall panel.

In the present embodiment, the wall panel is a three-layer composite structure, and the reinforced concrete wall surface 9, the filling layer 10 and the cast-in-place reinforced concrete wall surface 11 are sequentially arranged from the wall back side to the wall surface side, wherein the reinforced concrete wall surface 9 is a layer of steel reinforcement cage concrete wall surface, and in another embodiment, the reinforced concrete wall surface 9 may also be a layer of rubble concrete wall surface; and the filling layer 10 is formed between the reinforced concrete wall surface 9 and the cast-in-place reinforced concrete wall surface 11 and is formed by filling a layer of steel slag concrete. The thickness ratio of the reinforced concrete wall surface 9 to the filling layer 10 to the cast-in-place reinforced concrete wall surface 11 is 2:6: 1. And the reinforced lacing wires 4 sequentially penetrate through the reinforced concrete wall surface 9, the filling layer 10 and the cast-in-place reinforced concrete wall surface 11 when being formed and fixed, and are abutted and fixed on the surface of the cast-in-place reinforced concrete wall surface 11 through the retaining plate 12.

The upper part of the wall panel is compacted and protected by the cap stone 8, and the bottom part of the wall panel is fixedly connected with an underground concrete base 14, the underground concrete base 14 is pre-embedded and fixed in the foundation layer 7, a reinforcing bar seat 13 extends out of the upper part, the reinforcing bar seat 13 is formed in the wall panel, and the wall panel is fixed by the combination of the underground concrete base 14 and the reinforcing pull bar 4.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A reinforced retaining wall is characterized by comprising filler, a wall panel and reinforcing tie bars, wherein the filler is arranged on one side of the wall back of the wall panel, a gravel layer or a gravel layer is paved at the bottom of the filler to serve as a buffering water filtering layer, the filler is a laminated filler which is distributed in a laminated manner and has consistent compaction degree, adjacent filler layers are separated by geogrids, and a reinforcement cage is formed in each filler layer; the wall panel is of a three-layer composite structure, the back side of the wall is a reinforced concrete wall surface, the wall surface is a cast-in-place reinforced concrete wall surface, and a steel slag concrete layer is filled between the reinforced concrete wall surface and the cast-in-place reinforced concrete wall surface to serve as a filling layer; one end of the reinforcing tie bar is welded with the steel bar net cage, and the other end of the reinforcing tie bar penetrates through the wall panel and is fixed on the surface of the cast-in-place reinforced concrete wall surface.

2. A reinforced retaining wall according to claim 1, wherein the filler is backfill soil around the construction site.

3. A reinforced retaining wall according to claim 1, wherein the reinforced concrete wall surface is a rebar cage concrete wall surface or a rubble concrete wall surface.

4. A reinforced retaining wall according to claim 1, wherein the wall panels are provided with a capping stone at the top for compaction protection.

5. A reinforced retaining wall according to claim 1, wherein the bottom of the wall panel is provided with an underground concrete base as a retaining base, and the upper part of the underground concrete base is extended with the reinforcing bar base and is fixedly connected with the wall panel through the reinforcing bar base.

6. A reinforced retaining wall according to claim 1, wherein the reinforcing tendons are thin-walled i-section steel or thin-walled channel steel.

7. A reinforced retaining wall according to claim 1, wherein the ratio of the thickness of the reinforced concrete wall surface to the thickness of the filling layer of the wall panel is 1:3 to 1:4, and the ratio of the thickness of the reinforced concrete wall surface to the thickness of the cast-in-place reinforced concrete wall surface is 1:1 to 2: 1.

8. A reinforced retaining wall according to claim 1, wherein a drainage blind ditch is arranged at the lower part of the buffering water filtering layer.