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A support structure and construction method for foundation pit of dragged tube well chamber

A construction method and support structure technology, which is applied in the direction of basic structure engineering, excavation, drainage structures, etc., can solve the problems of large damage surface and unsealable support, achieve low construction cost, reduce foundation pit collapse, and ensure effective length And the effect of pipeline construction quality control

Active Publication Date: 2022-05-10
CHINA FIRST METALLURGICAL GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention proposes a support structure and construction method for the foundation pit of the pull tube well chamber, aiming at solving the problems that the existing support cannot be closed and the damage surface is large

Method used

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  • A support structure and construction method for foundation pit of dragged tube well chamber
  • A support structure and construction method for foundation pit of dragged tube well chamber
  • A support structure and construction method for foundation pit of dragged tube well chamber

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Embodiment Construction

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] Example of foundation pit support structure:

[0025] see Figure 1 to Figure 5 , which is the preferred structure of the foundation pit supporting s...

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Abstract

The invention provides a foundation pit supporting structure of a drag tube well room and a construction method thereof. The foundation pit support structure includes: two groups of cement mixing pile assemblies provided with several rows of cement mixing piles; wherein, the two groups of cement mixing pile assemblies are respectively arranged along the width direction of the two side walls on which the drag pipe pipes are arranged on the foundation pit , the pulling pipe pipeline passes through the cement mixing pile assembly, and the cement mixing pile assembly is used to form the pile body to solidify the soft sand; between the two groups of cement mixing pile assemblies along the circumference of the foundation pit, except for the position of the pulling pipe pipe, there are several Larsen steel sheet piles, and a closed support structure is formed between the Larsen steel sheet piles and the cement mixing pile assemblies. The invention forms a fully enclosed and stable closed support structure, forms the soil at the two ports of the drag pipe of the foundation pit and forms a stable and closed support structure, makes the foundation pit form a water-blocking closed space, and effectively blocks water , reduce the risk of foundation pit collapse and road subgrade being hollowed out, and avoid the danger of collapse.

Description

technical field [0001] The invention relates to the technical field of foundation pit support, in particular to a foundation pit support structure and a construction method of a pull tube well chamber. Background technique [0002] With the rapid development of cities and the continuous construction of various infrastructures, the area of ​​urban waters has decreased, waterlogging is serious, and urban drainage projects have increased in construction. However, the buildings in the city are getting denser and denser, and the process of open excavation will have a greater impact on the original underground pipelines, traffic and environment of the city, making the already congested traffic conditions and the deteriorating urban environment even more serious Instead of excavating and pulling pipes, this new technology is being widely used. [0003] During the construction process in the sandbar environment, it was found that for the deep sewage pipelines, the construction proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D5/46E02D5/04E02D5/08E03F5/06
CPCE02D17/04E02D5/46E02D5/04E02D5/08E03F5/06
Inventor 夏志聪胡静文杨志军赵海莲马越江明
Owner CHINA FIRST METALLURGICAL GROUP
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