Steel sheet pile transverse supporting structure convenient to disassemble and assemble in deep foundation pit
By designing a steel sheet pile lateral support structure that is easy to disassemble and assemble in a deep foundation pit, the horizontal support beams attached by I-shaped steel waist beams and L-shaped hanging plate support are solved. In the art, the welding problems and length deviation problems of steel sheet pile lateral support beams have improved the reusability of the support beams.
Patent Information
- Application Number
- CN202421085604.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-18
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-18
AI Technical Summary
In the existing deep foundation pit support projects, the welding project of steel sheet pile horizontal support beams is large, and the welding quality is difficult to ensure; the length of the support beam is easily deviated and needs to be cut or re-extracted; air cutting during dismantling damages the waist beam, Facilitate reuse.
A horizontal support structure of steel sheet piles is designed for easy disassembly and assembly in deep foundation pits. The L-shaped hanging plate support is attached through I-shaped steel waist beams, and the transverse support beams spliced with two or multiple steel pipes are used, and the block is inserted through a wedge-shaped insertion block. The top is tight to achieve the movable connection between the transverse support beam and the steel sheet pile.
The flexible installation and disassembly of transverse support beams and steel sheet piles is realized, which reduces the welding project volume, increases the reusability of support beams, and avoids damage to waist beams.
Smart Images
Figure CN222456122U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a deep foundation pit, in particular to a steel sheet pile lateral support which is convenient for disassembly and assembly in the deep foundation pit. Background Art
[0002] In deep foundation pit support projects, steel sheet piles plus steel sheet pile internal supports are reusable and have the characteristics of high support strength and low project cost. Therefore, they are widely used in deep foundation pit support projects with a short construction period. However, the existing technology has the following problems: (1) The traditional steel sheet pile transverse support beam is directly welded to the steel waist beam of the steel sheet pile, which results in a large amount of welding work. Since some welding points are performed by overhead welding, the welding quality is difficult to ensure. (2) The length of the existing steel support beam is cut according to the design drawings. There is a large deviation in the installation of the waist beam on site, resulting in the phenomenon that the length of the support beam on site often does not meet the requirements during installation, and cutting or re-cutting is required. (3) The steel support beam is welded to the steel waist beam. When the steel support beam is removed, gas cutting is used, which causes damage to the waist beam and is not conducive to the reuse of the waist beam. Summary of the invention
[0003] The utility model provides a steel sheet pile transverse support structure which is convenient for disassembly and assembly in a deep foundation pit, and solves the above-mentioned technical problem of supporting cross beams in steel sheet piles.
[0004] The utility model solves the above technical problems through the following technical solutions:
[0005] A steel sheet pile transverse support structure convenient for assembly and disassembly in a deep foundation pit comprises a deep foundation pit (1), wherein a left steel sheet pile (2) and a right steel sheet pile (3) are respectively arranged in the deep foundation pit (1), an I-beam left waist beam (4) is arranged on the inner side of the left steel sheet pile (2) in the pit, and an I-beam right waist beam (5) is arranged on the inner side of the right steel sheet pile (3) in the pit, a left L-shaped hanging plate support (6) is hung on the upper end flange plate of the I-beam left waist beam (4), and a right L-shaped hanging plate support (7) is hung on the upper end flange plate of the I-beam right waist beam (5), a transverse support beam (8) is arranged between the left L-shaped hanging plate support (6) and the right L-shaped hanging plate support (7), and a wedge-shaped insertion block (9) is arranged between the left end side elevation of the transverse support beam (8) and the left L-shaped hanging plate support (6).
[0006] A left triangular bracket (10) is arranged between the inner side surface of the left steel sheet pile (2) in the pit and the lower bottom surface of the left L-shaped hanging plate support (6), and a right triangular bracket (11) is arranged between the inner side surface of the right steel sheet pile (3) in the pit and the lower bottom surface of the right L-shaped hanging plate support (7); the transverse support beam (8) is composed of two sections of steel pipes spliced together.
[0007] A hanging ear (12) is arranged at intervals on the top end of the left L-shaped hanging plate support (6), and the left L-shaped hanging plate support (6) is hung on the upper end flange plate of the left waist beam (4) of the I-beam through the hanging ear (12). A triangular front baffle plate (13) is arranged between the front side surface of the horizontal plate of the left L-shaped hanging plate support (6) and the front side surface of the vertical plate, and a triangular rear baffle plate is arranged between the rear side surface of the horizontal plate of the left L-shaped hanging plate support (6) and the rear side surface of the vertical plate. The left end of the transverse support beam (8) is arranged between the triangular front baffle plate (13) and the triangular rear baffle plate.
[0008] The utility model realizes the movable abutment between the transverse support beam and the steel sheet pile in the deep foundation pit, the transverse support is easy to assemble and disassemble, and the reusability of the waist beam and the transverse support beam is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural schematic diagram of the utility model;
[0010] Figure 2 It is a structural schematic diagram of the left L-shaped hanging plate support (6) of the utility model. DETAILED DESCRIPTION
[0011] The utility model is described in detail below with reference to the accompanying drawings:
[0012] A steel sheet pile transverse support structure convenient for assembly and disassembly in a deep foundation pit, comprising a deep foundation pit (1), wherein a left steel sheet pile (2) and a right steel sheet pile (3) are respectively arranged in the deep foundation pit (1), an I-beam left waist beam (4) is arranged on the inner side of the left steel sheet pile (2) in the pit, an I-beam right waist beam (5) is arranged on the inner side of the right steel sheet pile (3) in the pit, a left L-shaped hanging plate support (6) is hung on the upper end flange plate of the I-beam left waist beam (4), and a left L-shaped hanging plate support (6) is hung on the upper end flange plate of the I-beam right waist beam (5). A right L-shaped hanging plate support (7) is hung on the flange plate, a transverse support beam (8) is arranged between the left L-shaped hanging plate support (6) and the right L-shaped hanging plate support (7), and a wedge-shaped insertion block (9) is arranged between the left end side elevation of the transverse support beam (8) and the left L-shaped hanging plate support (6). When the transverse support is installed, there is generally a gap between the transverse support beam (8) and the two L-shaped hanging plate supports. By driving the wedge-shaped insertion block (9) into the gap, the transverse support beam (8) is pressed against the left and right steel sheet piles.
[0013] A left triangular bracket (10) is arranged between the inner side surface of the left steel sheet pile (2) in the pit and the lower bottom surface of the left L-shaped hanging plate support (6), and a right triangular bracket (11) is arranged between the inner side surface of the right steel sheet pile (3) in the pit and the lower bottom surface of the right L-shaped hanging plate support (7), and the two triangular brackets play a role in further supporting the two L-shaped hanging plate supports; the transverse support beam (8) is composed of two or more sections of steel pipes spliced together, and two adjacent steel pipes are connected together by a flange.
[0014] A hanging ear (12) is arranged at intervals on the top end of the left L-shaped hanging plate support (6). The left L-shaped hanging plate support (6) is hung on the upper end flange plate of the left waist beam (4) of the I-beam through the hanging ear (12). A triangular front baffle plate (13) is arranged between the front side surface of the horizontal plate and the front side surface of the vertical plate of the left L-shaped hanging plate support (6). A triangular rear baffle plate is arranged between the rear side surface of the horizontal plate and the rear side surface of the vertical plate of the left L-shaped hanging plate support (6). The left end of the transverse support beam (8) is arranged between the triangular front baffle plate (13) and the triangular rear baffle plate to play a positioning role for the transverse support steel pipe.
[0015] The implementation points of the utility model are as follows: first, the transverse support beam (8) is shaped and manufactured, and the modulus is customized according to 0.5 meters. If the transverse support beam (8) is long, two or more sections of steel pipes can be used to connect through flanges; second, the L-shaped hanging plate support uses the flange plate of the steel waist beam as the force point. The L-shaped hanging plate support can be adjusted according to the specifications of the waist beam and the steel beam, and ensures that the central axis of the transverse support beam (8) and the central axis of the I-beam waist beam are at the same height; third, the transverse support beam (8) is made of steel pipe, and panels and stiffening ribs are arranged on both sides; fourth, a wedge-shaped insert block (9) is tightened. Since there must be a gap when the transverse support beam is placed on two L-shaped hanging plate supports, in order to make the transverse support beam bear force in advance and control the deformation of the foundation pit, a wedge-shaped insert block (9) is used to tighten the transverse support beam and the L-shaped hanging plate support. The wedge-shaped insert block (9) is an important component of the transverse support beam.
Claims
1. A steel sheet pile transverse support structure in a deep foundation pit that is easy to disassemble and assemble, comprising a deep foundation pit (1), wherein left-side steel sheet piles (2) and right-side steel sheet piles (3) are respectively arranged in the deep foundation pit (1), characterized in that: An I-beam left waist beam (4) is arranged on the inner side of the left steel sheet pile (2) in the pit, and an I-beam right waist beam (5) is arranged on the inner side of the right steel sheet pile (3) in the pit. A left L-shaped hanging plate support (6) is hung on the upper flange plate of the I-beam left waist beam (4), and a right L-shaped hanging plate support (7) is hung on the upper flange plate of the I-beam right waist beam (5). A transverse support beam (8) is arranged between the left L-shaped hanging plate support (6) and the right L-shaped hanging plate support (7), and a wedge-shaped insertion block (9) is arranged between the left end side elevation of the transverse support beam (8) and the left L-shaped hanging plate support (6).
2. The steel sheet pile transverse support structure that is easy to disassemble and assemble in a deep foundation pit according to claim 1 is characterized in that: A left triangular bracket (10) is arranged between the inner side surface of the left steel sheet pile (2) in the pit and the lower bottom surface of the left L-shaped hanging plate support (6), and a right triangular bracket (11) is arranged between the inner side surface of the right steel sheet pile (3) in the pit and the lower bottom surface of the right L-shaped hanging plate support (7); the transverse support beam (8) is composed of two sections of steel pipes spliced together.
3. A steel sheet pile transverse support structure that is easy to disassemble and assemble in a deep foundation pit according to claim 1 or 2, characterized in that: A hanging ear (12) is arranged at intervals on the top end of the left L-shaped hanging plate support (6), and the left L-shaped hanging plate support (6) is hung on the upper end flange plate of the left waist beam (4) of the I-beam through the hanging ear (12). A triangular front baffle plate (13) is arranged between the front side surface of the horizontal plate of the left L-shaped hanging plate support (6) and the front side surface of the vertical plate, and a triangular rear baffle plate is arranged between the rear side surface of the horizontal plate of the left L-shaped hanging plate support (6) and the rear side surface of the vertical plate. The left end of the transverse support beam (8) is arranged between the triangular front baffle plate (13) and the triangular rear baffle plate.