CN110219319B - Split-assembled L-shaped prefabricated retaining wall - Google Patents
Split-assembled L-shaped prefabricated retaining wall Download PDFInfo
- Publication number
- CN110219319B CN110219319B CN201910583205.XA CN201910583205A CN110219319B CN 110219319 B CN110219319 B CN 110219319B CN 201910583205 A CN201910583205 A CN 201910583205A CN 110219319 B CN110219319 B CN 110219319B
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- China
- Prior art keywords
- vertical wall
- retaining wall
- groove
- grooves
- unit
- Prior art date
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- 239000004567 concrete Substances 0.000 claims abstract description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000011374 ultra-high-performance concrete Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
Abstract
The invention discloses an L-shaped prefabricated retaining wall assembled in a split mode, which is formed by splicing a plurality of retaining wall sections; each prefabricated retaining wall segment includes a respective vertical wall unit and a respective floor unit; grooves are arranged on the positions, connected with the corresponding vertical wall units, on the bottom plate units; concave keys are arranged on two side walls of the groove, and a plurality of rigid cushion blocks are uniformly distributed at the bottom; the positions of the bottom plate units corresponding to the bottoms of the grooves are respectively provided with a plurality of embedded bars uniformly distributed along the length direction of the grooves; the lower ends of the vertical wall units are provided with convex tenons corresponding to the corresponding grooves; the vertical wall units are provided with a plurality of extending reinforcing steel bars at the positions corresponding to the periphery of the corresponding convex tenons; gaps exist between the outer contours of the convex tenons and the side walls of the corresponding grooves; and filling high-strength and high-toughness concrete into the gaps for fixing. The prefabricated retaining wall structure has good stress performance, can meet the stress performance of the vertical wall and the bottom plate in the normal use stage and the right and left of an earthquake, and has good durability.
Description
Technical Field
The invention relates to the technical field of retaining wall construction, in particular to an L-shaped prefabricated retaining wall assembled in a split mode.
Background
Most L-shaped retaining walls are cast in place or longitudinally segmented integrally prefabricated, and because the L-shaped integrally segmented prefabricated retaining walls are low in work efficiency during transportation and difficult to transport due to restrictions of under-bridge clearance when the height of the retaining walls is high.
In the prior art, split type L-shaped retaining walls are usually prefabricated by a vertical wall and a bottom plate respectively, and are connected by grouting sleeves, bolt connection or complete wet connection sections.
However, in practical application, the number of the embedded sleeves in the grouting sleeve joint mode is large, the precision control requirement is strict, and the economical efficiency is slightly poor; the wet joint section form field needs more work such as steel bar connection, concrete pouring, temporary support and the like.
Moreover, the bolt connection has higher precision requirements on bolt embedding and hole reservation, more bolts and larger field workload.
Because the high-strength and high-toughness concrete (namely UHPC material) has the performances of high strength, high tensile strength, high toughness, high durability and the like, the UHPC material is a new trend of development and application of the current concrete material, the anchoring length of the steel bar can be reduced, the welding work of the steel bar is avoided, and the UHPC material has good durability.
Therefore, how to fully utilize the new material to make the separated L-shaped prefabricated retaining wall have good safety performance, durability, convenient construction operation performance and the like becomes a technical problem which needs to be solved by the technicians in the field.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the invention provides a split-assembled L-shaped prefabricated retaining wall, which can not only ensure that the prefabricated retaining wall structure has better stress performance, but also can meet the stress performance of the vertical wall and the bottom plate in the normal use stage and under the right and left of an earthquake, and has better durability, and the vertical wall and the bottom plate are planar plate-type components, thereby being more beneficial to the prefabrication, transportation and on-site rapid assembly construction of the components of the retaining wall.
In order to achieve the above purpose, the invention discloses an L-shaped prefabricated retaining wall assembled in a split mode, which comprises a vertical wall and a bottom plate.
The retaining wall is prefabricated according to sections along the length direction, and is formed by splicing a plurality of retaining wall sections.
Each of the prefabricated retaining wall segments includes a respective vertical wall unit and a respective floor unit, and each of the vertical wall units and each of the floor units are prefabricated members.
And grooves extending along the length direction are formed in the positions, connected with the corresponding vertical wall units, on the bottom plate units.
Concave keys are arranged on two side walls of two sides of the groove parallel to the length direction, and a plurality of rigid cushion blocks are uniformly distributed at the center line position of the bottom of the groove along the length direction.
A plurality of embedded bars are uniformly distributed along the length direction of the groove at the positions of each bottom plate unit corresponding to the bottom of the groove;
the embedded bars comprise extending ends extending vertically from the bottoms of the grooves, the positions of the extending ends are located on two sides of the rigid cushion blocks respectively, and the extending ends are bound in the height direction to form a reinforcement cage with a plurality of closed stirrups.
The lower end of each vertical wall unit is provided with a convex tenon corresponding to the corresponding groove.
A plurality of extending reinforcing steel bars are arranged at the positions around each vertical wall unit corresponding to the corresponding convex tenons; the plurality of the extending reinforcing steel bars are all flush with the corresponding convex tenons and are arranged at staggered positions with the corresponding embedded reinforcing steel bars at the bottom of the groove.
The appearance of each convex tenon is smaller than that of the corresponding groove, and a gap exists between the outer contour of each convex tenon and the side wall of the corresponding groove; and the gaps are filled with high-strength and high-toughness concrete for fixing.
Preferably, the connection surfaces of every two adjacent vertical wall units are connected with the longitudinal sections by means of convex-concave connectors.
Preferably, a concave key is arranged on the side face of each convex tenon.
The invention has the beneficial effects that:
the invention uses the characteristic of high-strength and high-toughness concrete (namely UHPC material) to splice the split type L-shaped prefabricated retaining wall; compared with the prior art, the prefabricated retaining wall structure has good stress performance, can meet the stress performance of the vertical wall and the bottom plate in the normal use stage and the earthquake, has good durability, is a planar plate type component, and is more beneficial to the prefabrication, transportation and on-site rapid assembly construction of the retaining wall component.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
Fig. 1 is a schematic view showing a connection structure of a side of a vertical wall unit according to an embodiment of the present invention.
Fig. 2 is a schematic view showing a structure in which a connection portion of a vertical wall unit and a floor unit is in a separated state in an embodiment of the present invention.
Fig. 3 is a partially enlarged schematic view showing the connection of the vertical wall unit and the floor unit of fig. 2 according to the present invention.
Fig. 4 shows a schematic view of the structure above the floor unit in an embodiment of the invention.
Fig. 5 is a schematic cross-sectional structure showing a connection state of the vertical wall unit and the floor unit in an embodiment of the present invention.
Fig. 6 is a schematic diagram showing a connection structure of an upper end face of a vertical wall unit according to an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 1 to 5, the L-shaped prefabricated retaining wall, which is assembled in a split manner, includes a vertical wall and a bottom plate.
The retaining wall is prefabricated according to sections along the length direction, and is formed by splicing a plurality of retaining wall sections.
Each prefabricated retaining wall section comprises a respective vertical wall unit 1 and a respective floor unit 2, and each vertical wall unit 1 and each floor unit 2 are prefabricated.
A groove 3 extending in the length direction is provided at a position on each floor unit 2 where it is connected to the corresponding vertical wall unit 1.
Concave keys 4 are arranged on two side walls of the two sides of the groove 3 and parallel to the length direction, and a plurality of rigid cushion blocks 5 are uniformly distributed at the center line position of the bottom of the groove 3 along the length direction.
A plurality of embedded bars 6 which are uniformly distributed along the length direction of the groove 3 are arranged at the position of each bottom plate unit 2 corresponding to the bottom of the groove 3;
the embedded bars 6 comprise extending ends extending vertically from the bottom of the groove 3, the positions of the extending ends are respectively located on two sides of the rigid cushion blocks 5, and the extending ends are bound along the height direction to form a plurality of closed stirrups 10 to form a reinforcement cage.
The lower end of each vertical wall unit 1 is provided with a convex tenon 7 corresponding to the corresponding groove 3.
A plurality of extending reinforcing steel bars 8 are arranged at the periphery of each vertical wall unit 1 corresponding to the corresponding convex tenons 7; the plurality of extension bars 8 are all flush with the corresponding convex tenons 7 and are arranged at staggered positions with the plurality of embedded bars 6 at the bottom of the corresponding grooves 3.
The appearance of each convex tenon 7 is smaller than that of the corresponding groove 3, and a gap 9 exists between the outer contour of the convex tenon 7 and the side wall of the corresponding groove 3; the gap 9 is filled with high-strength and high-toughness concrete for fixing.
In practical application, the plurality of bottom plate units 2 are leveled through cast-in-situ mortar cushion layers; the bottom of the groove 3 is provided with a rigid cushion block 5 at intervals, and a plurality of extending ends of the embedded bars 6 form a reinforcement cage by binding stirrups.
During construction, a certain height template is arranged on the top of each bottom plate unit 2 and positioned at the top of the groove 3, after high-strength and toughness concrete, namely UHPC materials, is poured, the high-strength and toughness concrete is inserted into the vertical wall to uniformly extrude the high-strength and toughness concrete, so that each vertical wall unit 1 and the corresponding bottom plate unit 2 are assembled, and the foot protection 11 of the high-strength and toughness concrete to the splice seam is simultaneously completed through the template which is higher than the top of the groove 3.
As shown in fig. 6, in some embodiments, the connection surfaces of each two adjacent vertical wall units 1 are connected between the longitudinal sections by means of male-female connectors.
In some embodiments, the sides of each male dovetail 7 are provided with female keys 4.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (1)
1. The split-assembled L-shaped prefabricated retaining wall comprises a vertical wall and a bottom plate; the method is characterized in that: the retaining wall is prefabricated according to sections along the length direction and is formed by splicing a plurality of retaining wall sections;
each prefabricated retaining wall segment comprises a corresponding vertical wall unit (1) and a corresponding floor unit (2), and each vertical wall unit (1) and each floor unit (2) are prefabricated;
a groove (3) extending along the length direction is arranged at the position on each bottom plate unit (2) connected with the corresponding vertical wall unit (1);
concave keys (4) are arranged on two side walls of the two sides of the groove (3) parallel to the length direction, and a plurality of rigid cushion blocks (5) are uniformly distributed at the center line position of the bottom of the groove (3) along the length direction;
the positions of each bottom plate unit (2) corresponding to the bottoms of the grooves (3) are provided with a plurality of embedded bars (6) uniformly distributed along the length direction of the grooves (3);
the embedded bars (6) comprise extending ends which vertically extend out from the bottoms of the grooves (3), the positions of the extending ends are respectively positioned at two sides of the rigid cushion blocks (5), and the extending ends are bound and provided with a plurality of closed stirrups (10) along the height direction to form a reinforcement cage;
the lower end of each vertical wall unit (1) is provided with a convex tenon (7) corresponding to the corresponding groove (3);
a plurality of extending reinforcing steel bars (8) are arranged at the periphery of each vertical wall unit (1) corresponding to the corresponding convex tenon (7); the plurality of the extending steel bars (8) are flush with the corresponding convex tenons (7) and are arranged at staggered positions with the plurality of embedded steel bars (6) at the bottom of the corresponding groove (3);
the appearance of each convex tenon (7) is smaller than that of the corresponding groove (3), and a gap (9) exists between the outer contour of each convex tenon (7) and the side wall of the corresponding groove (3); the gap (9) is filled with high-strength and high-toughness concrete for fixing;
the connection surfaces of every two adjacent vertical wall units (1) are connected with each other through convex-concave connectors;
the side face of each convex tenon (7) is provided with a concave key (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910583205.XA CN110219319B (en) | 2019-07-01 | 2019-07-01 | Split-assembled L-shaped prefabricated retaining wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910583205.XA CN110219319B (en) | 2019-07-01 | 2019-07-01 | Split-assembled L-shaped prefabricated retaining wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219319A CN110219319A (en) | 2019-09-10 |
| CN110219319B true CN110219319B (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910583205.XA Active CN110219319B (en) | 2019-07-01 | 2019-07-01 | Split-assembled L-shaped prefabricated retaining wall |
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| Country | Link |
|---|---|
| CN (1) | CN110219319B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328765A (en) * | 1996-06-10 | 1997-12-22 | Sekisui House Ltd | Concrete block retaining wall |
| JP2004143715A (en) * | 2002-10-22 | 2004-05-20 | Tsurusaki Fume Kk | Split type l-shaped retaining wall, its manufacturing method and its assembling construction method |
| CN101787710A (en) * | 2010-03-19 | 2010-07-28 | 黄靓 | Integrally-assembled buttressed retaining wall and construction method thereof |
| KR101615614B1 (en) * | 2015-11-06 | 2016-05-11 | 주식회사 제이비즈 | A construction method of a structure with modular retaining wall and double wall |
| CN109440813A (en) * | 2018-11-29 | 2019-03-08 | 上海市城市建设设计研究总院（集团）有限公司 | The prefabricated retaining wall of anatomy insert L-type |
| CN210369030U (en) * | 2019-07-01 | 2020-04-21 | 上海市城市建设设计研究总院（集团）有限公司 | Split-assembled L-shaped prefabricated retaining wall |
-
2019
- 2019-07-01 CN CN201910583205.XA patent/CN110219319B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328765A (en) * | 1996-06-10 | 1997-12-22 | Sekisui House Ltd | Concrete block retaining wall |
| JP2004143715A (en) * | 2002-10-22 | 2004-05-20 | Tsurusaki Fume Kk | Split type l-shaped retaining wall, its manufacturing method and its assembling construction method |
| CN101787710A (en) * | 2010-03-19 | 2010-07-28 | 黄靓 | Integrally-assembled buttressed retaining wall and construction method thereof |
| KR101615614B1 (en) * | 2015-11-06 | 2016-05-11 | 주식회사 제이비즈 | A construction method of a structure with modular retaining wall and double wall |
| CN109440813A (en) * | 2018-11-29 | 2019-03-08 | 上海市城市建设设计研究总院（集团）有限公司 | The prefabricated retaining wall of anatomy insert L-type |
| CN210369030U (en) * | 2019-07-01 | 2020-04-21 | 上海市城市建设设计研究总院（集团）有限公司 | Split-assembled L-shaped prefabricated retaining wall |
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| Publication number | Publication date |
|---|---|
| CN110219319A (en) | 2019-09-10 |
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