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Prefabricated short leg diaphragm wall

An underground continuous wall, prefabricated technology, applied in sheet pile walls, construction, excavation, etc., can solve the problems of prolonging the construction period of the building and complicated construction steps, and achieve the effect of shortening the construction period and reducing the construction steps.

Active Publication Date: 2020-09-01
DONGTONG ROCK SOIL SCI & TECH HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the current construction method of combining the foundation pit enclosure of the temporary measures with the permanent building foundation pit side wall ensures the strength of the building foundation pit side wall, the construction steps are complicated and the construction period is prolonged.

Method used

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  • Prefabricated short leg diaphragm wall
  • Prefabricated short leg diaphragm wall
  • Prefabricated short leg diaphragm wall

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0038] Specific embodiment one: as figure 1 , figure 2 As shown, a prefabricated short-leg underground diaphragm wall includes an underground cement-soil diaphragm wall and a prefabricated diaphragm wall with outriggers. The underground cement-soil continuous wall is arranged around the foundation pit. The underground cement-soil diaphragm wall is used to block groundwater to form the enclosure of the foundation pit.

[0039] The prefabricated continuous wall with outriggers includes prefabricated single walls 1 sequentially arranged in the underground cement-soil continuous wall along the length direction of the underground cement-soil continuous wall. The prefabricated monolithic walls are set vertically.

[0040] The prefabricated single wall includes a prefabricated reinforced concrete component 1.1 arranged in the underground cement-soil continuous wall and a section steel component 1.2 located below the prefabricated reinforced concrete component. In this embodimen...

specific Embodiment 2

[0051] Specific embodiment two: as Figure 5 , Figure 6 As shown, the rest of the structure of this embodiment refers to the specific embodiment one, the difference is:

[0052] A prefabricated short limb underground continuous wall also includes an expansion support device 5 arranged at the lower part of the prefabricated reinforced concrete member 1.1. The expansion support device includes a horizontal chute 5.1 arranged at the lower part of the side of the prefabricated reinforced concrete member, a sliding support plate 5.2 slidably arranged in the horizontal chute, and a housing arranged in the lower part of the prefabricated reinforced concrete member and communicated with the horizontal chute. Groove 5.0, horizontal cylinder 5.3 embedded in the lower part of the prefabricated reinforced concrete member, piston 5.4 slidingly arranged in the horizontal cylinder and piston rod 5.5 connected with the piston.

[0053] There are two horizontal chutes in the same expansion ...

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Abstract

The invention discloses an assembly type short-limb underground continuous wall. The assembly type short-limb underground continuous wall aims to effectively reduce construction steps and shorten theconstruction period on the premise that the strength of a foundation pit support and the strength of the side wall of a permanent building foundation pit are not affected. The assembly type short-limbunderground continuous wall comprises an underground water-soil continuous wall, an enclosure body and an assembly type continuous wall equipped with supporting legs, wherein the enclosure body is used for blocking underground water so as to form a foundation pit. The assembly type continuous wall equipped with the supporting legs comprises prefabricated single walls which are sequentially arranged in the underground water-soil continuous wall in the length direction of the underground water-soil continuous wall. The prefabricated single walls comprise prefabricated reinforced concrete components and profile steel components, wherein the prefabricated reinforced concrete components are arranged in the underground water-soil continuous wall, the profile steel components are positioned below the prefabricated reinforced concrete components, and the upper ends of the profile steel components are integrally connected with the lower ends of the prefabricated reinforced concrete components.The prefabricated reinforced concrete components of every two adjacent prefabricated single walls are connected into a whole through a biting structure.

Description

technical field [0001] The invention relates to the field of foundation pit enclosure, in particular to an assembled short-limb underground continuous wall. Background technique [0002] For foundation pit construction of buildings or structures, the foundation pit enclosure is generally carried out first, and then excavated. The current foundation pit enclosure often adopts the combination of column piles and water-stop curtains, or the method of cement-soil mixing piles (usually some intermittently distributed steels are inserted on the cement-soil mixing piles); but these forms of foundation Pit enclosures are temporary measures, which are transitional measures for foundation pits of construction buildings or structures. [0003] After the foundation pit is excavated to the bottom, it is necessary to carry out the construction of the side wall of the building foundation pit in the foundation pit. The side wall of the building foundation pit adopts formwork and lays steel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D5/20
CPCE02D5/20E02D17/04
Inventor 胡琦胡焕朱海娣丁继民任宇黄星迪竹相黄天明王涛李健平娄泽峰邓以亮
Owner DONGTONG ROCK SOIL SCI & TECH HANGZHOU
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