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Prefabricated enclosure structure combined with ladder corrugated steel plate and steel truss and its construction method

A corrugated steel plate and enclosure structure technology, which is applied in foundation structure engineering, excavation, and sheet pile walls, etc., can solve the problems of low rigidity of foundation pit enclosure structure, large impact on surrounding environment, and inability to be used repeatedly, so as to achieve high construction efficiency , Reduce the effect of deformation, good soil and water retaining function

Active Publication Date: 2021-07-23
SHANGHAI CONSTRUCTION GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems that the existing foundation pit enclosure structure has low rigidity, great impact on the surrounding environment, difficult quality control, and cannot be used repeatedly, resulting in huge waste of resources and environmental pollution

Method used

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  • Prefabricated enclosure structure combined with ladder corrugated steel plate and steel truss and its construction method
  • Prefabricated enclosure structure combined with ladder corrugated steel plate and steel truss and its construction method
  • Prefabricated enclosure structure combined with ladder corrugated steel plate and steel truss and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Example 1: Combining Figure 1~6 and Figure 11 , Figure 12 Illustrate the assembled enclosure structure 10 of the combination of ladder corrugated steel plate and steel truss of the present invention, it is formed by continuous splicing of a plurality of enclosure structure units, as Figure 5 and Figure 6 As shown, each enclosure structure unit includes two ladder corrugated steel plates 11 parallel to each other, and the two ladder corrugated steel plates 11 are respectively arranged on the pit facing surface E and the soil facing surface F of the foundation pit 1, and are connected to the two ladder corrugated steel plates Between 11 and a plurality of steel trusses 15 arranged along its height direction, the height direction of the ladder corrugated steel plate 11 is the depth direction of the foundation pit 1; A plurality of connecting rods 12 of the ladder corrugated steel plate 11 and the steel truss 15, the enclosure structure unit here refers to a section...

Embodiment 2

[0082] Embodiment 2: Combination Figure 1~6 and Figure 11 , Figure 12 Illustrate the construction method of the prefabricated enclosure structure of the combination of ladder corrugated steel plate and steel truss in the first embodiment of the present invention, the specific steps are as follows:

[0083] S1: Determine the appropriate enclosure structure unit model according to the design requirements, and prefabricate and process multiple enclosure structure units. Each enclosure structure unit is composed of two ladder corrugated steel plates 11, connected between the two ladder corrugated steel plates 11 and along the A plurality of steel trusses 15 arranged in the height direction, and a plurality of connecting rods 12 connected between the ladder corrugated steel plates 11 and the steel trusses 15 are fixedly connected as a whole, and the gap between the ladder corrugated steel plates 11, the steel trusses 15 and the connecting rods 12 The nodes are connected by fac...

Embodiment 3

[0091] Embodiment three: different from embodiment one, as Figure 7 to Figure 12 As shown, the enclosure structure unit includes: a trapezoidal corrugated steel plate composite member fixedly connected with connecting rods and connectors, and a steel truss composed of chords and web members. The connectors 17 have a flat C-shaped or Ω-shaped cross-section, and multiple The connecting piece 17 is set through the height direction of the ladder corrugated steel plate 11 and is fixedly connected with the connecting rod 12 and the ladder corrugated steel plate 11 to form a composite member of the ladder corrugated steel plate. A plurality of steel trusses 15 are detachably connected to the two oppositely arranged connectors In 17, the ladder corrugated steel plate composite members and steel trusses 15 can be prefabricated separately in the factory, and then transported to the construction site to adopt the prefabricated construction of "component inserting and driving", and the tr...

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Abstract

The assembled enclosure structure combined with ladder corrugated steel plate and steel truss and the construction method thereof of the present invention relate to the technical field of foundation pit engineering. Aiming at the problems of low rigidity of the existing foundation pit enclosure structure, great impact on the environment, difficult quality control, and inability to be used repeatedly. It is formed by continuous splicing of a plurality of enclosure structure units arranged along the side length of the foundation pit. The enclosure structure unit includes two ladder corrugated steel plates, and multiple steel panels connected between the two ladder corrugated steel plates and arranged along their height direction. Truss, and a plurality of connecting rods connected between the ladder corrugated steel plate and the steel truss; the ends of two adjacent ladder corrugated steel plates are overlapped or occluded; the steel truss is composed of two A planar truss structure composed of multiple webs between the two. The enclosure structure unit is through "unit integral driving" or "component insertion type driving", and the adjacent enclosure structure units are lapped or occluded to form a continuous and complete prefabricated enclosure that can retain soil and water at the same time. protection structure.

Description

technical field [0001] The invention relates to the technical field of foundation pit engineering, in particular to an assembled enclosure structure combined with ladder corrugated steel plates and steel trusses and a construction method thereof. Background technique [0002] The foundation pit enclosure structure is a construction temporary retaining wall structure that mainly bears the water and soil pressure generated by the excavation and unloading of the foundation pit, and transmits the water and soil pressure to the support system to stabilize the foundation pit. The foundation pit enclosure structures commonly used in engineering mainly include the following types: [0003] (1) Underground Diaphragm Wall: It has high rigidity, relatively small deformation, and high safety during foundation pit excavation, but the disadvantage is that the cost is high; and the wall needs to be maintained, and the construction period is long; in addition, mud protection is required dur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D5/08
CPCE02D5/08E02D17/04
Inventor 张竹庭钟铮王新新程子聪
Owner SHANGHAI CONSTRUCTION GROUP