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Steel sheet pile support construction method for building underground garage open caisson

A construction method and technology of construction method, applied in sheet pile wall, excavation, caisson and other directions, can solve the problems of high engineering cost, complex construction technology, large impact on the surrounding environment, etc., to reduce the risk factor, reduce construction difficulty and cost, The effect of improving construction efficiency

Active Publication Date: 2016-10-12
JIANGSU DONGHENAN GEOTECHNICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the current caisson construction still has the problems of relatively large impact on the surrounding environment, complex construction technology under special conditions, and high engineering costs

Method used

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  • Steel sheet pile support construction method for building underground garage open caisson
  • Steel sheet pile support construction method for building underground garage open caisson
  • Steel sheet pile support construction method for building underground garage open caisson

Examples

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Comparison scheme
Effect test

Embodiment 1

[0045] The well wall of the underground garage caisson to be built in this embodiment is a rectangular well wall, and the well wall adopts a steel-concrete structure. The design depth of the lower end surface of the well wall is 18 meters. The well wall is divided into three sections for construction. The steel sheet pile used The length is 12 meters, and the reference number 200 in the drawings is used to indicate the ground.

[0046] The following are the concrete steps that the above-mentioned underground garage caisson adopts the present invention to build:

[0047] (1), see figure 1 , the steel sheet piles are sunk at the outer side of the caisson design sinking place, and the steel sheet piles are interlocked and connected to form a continuous steel sheet pile wall 1, and the bottom depth of the steel sheet pile wall 1 is 12 meters.

[0048] (2), please also refer to figure 1 and figure 2 , excavate the earth in the area surrounded by the steel sheet pile wall 1 un...

Embodiment 2

[0064] see Figure 14 , in the present embodiment, the well wall of the underground garage caisson to be built is a circular well wall, and the design depth of the lower end surface of the well wall is 30 meters, and the well wall is divided into six sections for construction, Figure 14 Shown is a top view of the underground garage caisson constructed by the method provided by the present invention. In this embodiment, the bottom depth of the steel sheet pile wall 61 is 15 meters.

[0065] The steel sheet pile wall 61 indicated by the dotted line in the drawing shows the position of the steel sheet pile wall before the steel sheet pile is pulled out, and the inner side of the steel sheet pile wall 61 is the shaft wall 62 .

[0066] The construction steps in this embodiment are basically the same as those in Embodiment 1, the difference being that, in this embodiment, jacks are not used to assist the well wall to sink.

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Abstract

The invention discloses a steel sheet pile support construction method for building an underground garage open caisson to reduce the construction complexity and improve the construction efficiency during open caisson building and reduce the building expenditure for the open caisson. According to the construction method, open caisson construction is carried out in an area defined by a steel sheet wall, wherein building of a wall of the open caisson is carried out in a manner of segment-by-segment construction from bottom to top. The building method comprises the steps that steel sheet piles are sunk, and the continuous steel sheet pile wall is formed; a certain of earthwork is excavated in the area defined by the steel sheet pile wall, then, a pile block enclosure purlin is erected on the top of the steel sheet pile wall, and horizontal braces are built on the inner side of the pile block enclosure purlin; and then, open caisson building is finished through a method that earthwork is excavated segment by segment, the wall is poured segment by segment and sinking is carried out.

Description

technical field [0001] The invention belongs to the field of underground structure construction, and in particular relates to a steel sheet pile support construction method for constructing underground garage caissons. Background technique: [0002] With the development of the economy, urban land is increasingly in short supply. Intensive and economical use of land, scientific and rational development and utilization of urban underground space, and development of new living and development space have become an inevitable choice. Many domestic cities have gradually emerged to develop and utilize underground space. upsurge. The development and utilization of underground space can alleviate traffic congestion, reduce urban air pollution, improve the urban ecological environment, and facilitate the lives of urban people. The problems of traffic difficulties, road difficulties and parking difficulties in large and medium-sized cities are common and increasingly serious. Urban u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/04E02D17/02E02D17/04E02D23/00E02D23/08E02D29/045
CPCE02D5/04E02D17/02E02D17/04E02D23/00E02D23/08E02D29/04
Inventor 王建兰郝刚王涛金宝林李仁民
Owner JIANGSU DONGHENAN GEOTECHNICAL TECH CO LTD
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