CN-121992816-A - Retaining wall

CN121992816ACN 121992816 ACN121992816 ACN 121992816ACN-121992816-A

Abstract

The application discloses a retaining wall, which is characterized in that a box girder is quickly and accurately positioned and fixed on a base in a plugging manner by arranging a plugging part which is matched with a hollow cavity or an external contour of the box girder on the base. The concrete box girder obtained by dismantling the simply supported girder bridge can complete the function conversion from the bridge component to the retaining wall on the premise of not changing the main structure of the concrete box girder, thereby solving the problems of large resource consumption, long construction period and environmental pressure caused by the low-valued treatment of the waste bridge component in the traditional retaining wall construction process. Meanwhile, a plurality of bridge conversion retaining wall components are continuously arranged along the line trend to form a linear retaining structure, and the linear retaining structure has good overall stability and space continuity. The whole structure is convenient for mechanized construction, shortens the field operation time and improves the engineering construction efficiency.

Inventors

BAO YANGYANG
ZENG XIANGJI
WEI HAO
WANG LIRONG
BAO HAITAO
WANG CHUNYAN

Assignees

中交路桥建设有限公司

Dates

Publication Date: 20260508
Application Date: 20260114

Claims (10)

1. A retaining wall, comprising: the concrete box girder (10) is prefabricated and spliced, and is detached from the simply supported girder bridge, and the concrete box girder (10) is provided with a hollow cavity (101); Base (20), including pedestal (21), be equipped with on pedestal (21) with grafting portion of cavity (101) looks adaptation, cavity (101) with grafting portion grafting cooperation, perhaps be equipped with on pedestal (21) with grafting portion of concrete box roof beam (10) outline looks adaptation, concrete box roof beam (10) with grafting portion grafting cooperation, so that concrete box roof beam (10) fixed connection in pedestal (21).
2. Retaining wall according to claim 1, characterized in that the concrete box girder (10) comprises a box girder first web (13) and a box girder second web (14) arranged opposite each other, The concrete box girders (10) are arranged in the same direction, and the first box girder webs (13) adjacent to one of the concrete box girders (10) and the first box girder webs (13) adjacent to the other are close to each other, or the first box girder webs (13) adjacent to one of the concrete box girders (10) and the second box girder webs (14) adjacent to the other are close to each other.
3. The retaining wall according to claim 2, wherein the concrete box girder (10) further comprises a box girder top plate (11) and a box girder bottom plate (12) which are arranged oppositely, the box girder top plate (11), the box girder first web plate (13), the box girder bottom plate (12) and the box girder second web plate (14) are connected end to end in sequence to form the hollow cavity (101), The socket body (21) is provided with a plurality of inserting protrusions (22) which are arranged along the same direction, the inserting protrusions (22) are configured into inserting portions, each inserting protrusion (22) comprises a locating surface (221), and the locating surfaces (221) are attached to the inner surface of the box girder top plate (11) or the inner surface of the box girder bottom plate (12).
4. A retaining wall according to claim 3, characterized in that the cross section of the plug-in projection (22) is gradually reduced along its extension, the plug-in projection (22) length being smaller than the hollow cavity (101) length.
5. Retaining wall according to claim 2, characterized in that the housing (21) is provided with a mounting cavity (2301) open at one end for the concrete box girder (10) to enter the mounting cavity (2301), The mounting cavity (2301) is at least partially configured as the plug for positioning the concrete box girder (10).
6. A retaining wall according to claim 5, characterized in that the mounting cavity (2301) comprises a lower bearing table (232) below the seat (21) and an upper bearing table (231) above the seat (21), the lower bearing table (232) being provided with a lower mounting cavity, the upper bearing table (231) being provided with an upper mounting cavity, the upper and lower mounting cavities communicating to form the mounting cavity (2301), the lower mounting cavity being the plug-in portion, A first pouring space is reserved between the concrete box girder (10) and the cavity side wall of the upper mounting cavity, and concrete is poured into the first pouring space, so that the base body (21) and each concrete box girder (10) are connected into a whole.
7. A retaining wall according to claim 2, further comprising a capping ring beam (30), the capping ring beam (30) having the same cross-sectional shape as the concrete box beam (10), The pressing ring beam (30) is connected with the other end of the concrete box beam (10) in the length direction in a pouring way, the pressing ring beam (30) comprises a first section (31), a second section (32), a third section (33) and a fourth section (34) which are sequentially connected end to end, the first section (31) and the third section (33) are arranged in parallel, the second section (32) and the first web (13) of the box beam are arranged in parallel, the fourth section (34) and the second web (14) of the box beam are arranged in parallel, The second section (32) is arranged opposite to the first webs (13) of one of the concrete box girders (10) up and down, and the fourth section (34) is arranged opposite to the second webs (14) of the other of the concrete box girders (10) up and down.
8. A retaining wall according to claim 7, characterized in that said second section (32) is arranged in vertically opposite relation to said first box girder web (13) of one outermost one of said plurality of concrete box girders (10), and said fourth section (34) is arranged in vertically opposite relation to said second box girder web (14) of another outermost one of said plurality of concrete box girders (10).
9. The retaining wall according to claim 7, wherein concrete is poured into a third pouring space (D) formed by the capping ring beam (30) and the other end of the concrete box beam (10) in the length direction, The retaining wall further comprises a guardrail (40), and the guardrail (40) is connected with the capping ring beam (30) through concrete in a pouring mode.
10. A retaining wall according to claim 2, characterized in that when the first box girder web (13) of one of the adjacent concrete box girders (10) and the second box girder web (14) of the other are brought close to each other, The concrete box girder (10) further comprises a box girder top plate (11) and a box girder bottom plate (12) which are oppositely arranged, the box girder top plate (11), the box girder first web plate (13), the box girder bottom plate (12) and the box girder second web plate (14) are sequentially connected end to form the hollow cavity (101), a first flange plate (15) and a second flange plate (16) are outwards extended from two sides of the box girder top plate (11), the first flange plate (15) is close to the box girder first web plate (13) and the second flange plate (16) is close to the box girder second web plate (14), The first web plate (13) and the first flange plate (15) of one of the adjacent concrete box girders (10) and the second web plate (14) and the second flange plate (16) of the other form a second pouring space (C), and concrete is poured into the second pouring space (C) so that the adjacent concrete box girders (10) are connected into a whole.

Description

Retaining wall Technical Field The invention relates to the technical field of retaining wall structures, in particular to a retaining wall. Background In construction of projects such as roads, railways, municipal works, etc., a retaining wall is a widely used retaining structure. The retaining wall is a structure for supporting the soil filled in the roadbed or the soil of the hillside and preventing the soil filled in or the soil from deforming and unstably. According to the structural characteristics, the retaining wall can be divided into a gravity type, a counterweight type, a cantilever type, a reinforced soil light type, a concrete half-gravity type and the like. In the related art, the retaining wall is prefabricated using cast-in-place concrete or factory. The cast-in-situ retaining wall has the defects of long construction period, large field workload, difficult control of quality, large interference to the environment and the like, and the prefabricated retaining wall can partially overcome the defects, but the production cost is still higher. Disclosure of Invention The invention provides a retaining wall which comprises prefabricated splice pieces and a base. The prefabricated splice is a concrete box girder detached from a simply supported girder bridge, and the concrete box girder is provided with a hollow cavity; The base comprises a base body, wherein the base body is provided with a plug-in part matched with the hollow cavity body, the hollow cavity body is in plug-in fit with the plug-in part, or the base body is provided with the plug-in part matched with the outer contour of the concrete box girder, and the concrete box girder is in plug-in fit with the plug-in part, so that the concrete box girder is fixedly connected with the base body. As an realizable mode, the concrete box girder comprises a box girder first web and a box girder second web which are oppositely arranged, The plurality of concrete box girders are arranged along the same direction, and the first webs of the box girders adjacent to one of the concrete box girders are close to each other or the first webs of the box girders adjacent to one of the concrete box girders are close to each other. As an realizable mode, the concrete box girder further comprises a box girder top plate and a box girder bottom plate which are oppositely arranged, the box girder top plate, the box girder first web plate, the box girder bottom plate and the box girder second web plate are sequentially connected end to form the hollow cavity, The socket body is provided with a plurality of inserting protrusions arranged along the same direction, the inserting protrusions are configured into the inserting portions, the inserting protrusions comprise positioning surfaces, and the positioning surfaces are attached to the inner surface of the box beam top plate or the inner surface of the box beam bottom plate. As an implementation manner, the cross section of the plugging protrusion gradually decreases along the extending direction, and the length of the plugging protrusion is smaller than that of the hollow cavity. As an implementation manner, the base body is provided with an installation cavity with an opening at one end, the opening is used for the concrete box girder to enter the installation cavity, and the installation cavity is at least partially configured as the plug-in connection part and is used for positioning the concrete box girder. As an realizable mode, the installation cavity comprises a lower bearing platform positioned below the seat body and an upper bearing platform positioned above the seat body, the lower bearing platform is provided with a lower installation cavity, the upper bearing platform is provided with an upper installation cavity, the upper installation cavity and the lower installation cavity are communicated to form the installation cavity, the lower installation cavity is the plug-in connection part, And a first pouring space is reserved between the concrete box girder and the cavity side wall of the upper mounting cavity, and concrete is poured into the first pouring space, so that the seat body and each concrete box girder are connected into a whole. As an implementation manner, the concrete box girder further comprises a capping ring girder, wherein the cross-sectional shape of the capping ring girder is the same as that of the concrete box girder, The pressing ring beam is connected with the other end of the concrete box girder in the length direction in a pouring way, the pressing ring beam comprises a first section, a second section, a third section and a fourth section which are connected end to end in sequence, the first section and the third section are arranged in parallel, the second section and the first web of the box girder are arranged in parallel, the fourth section and the second web of the box girder are arranged in parallel, The second section is arranged opposite to the first web plate of one of