A construction method of deep foundation pit support structure

A supporting structure and construction method technology, which is applied in the direction of basic structure engineering, excavation, construction, etc., can solve problems such as the complex stress of the ring beam support system, and achieve the effect of saving support materials, reducing project cost, and good integrity
CN104563127BInactive Publication Date: 2016-08-24NANJING TECH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING TECH UNIV
Publication Date
2016-08-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a novel deep foundation pit supporting structure and a construction method for the same. The novel deep foundation pit supporting structure comprises supporting piles, upright piles and a plurality of ring beams with different sizes, wherein the ring beams are connected with the pile heads of the upright piles, and are sequentially constructed from large ring beams to small beams; the size of each ring beam is adapted to the shape of a corresponding area during construction, and each ring beam is at least tangent to three sides of a corresponding polygon of the area; safe distances are formed between every two ring beams and between the edges of the ring beams and a foundation pit. According to the novel deep foundation pit supporting structure and the construction method for the same, supporting problems in a deep foundation pit excavation process can be well solved, and higher in excavation construction safety and reasonability are achieved.
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Description

technical field

[0001] The invention relates to a building construction method, in particular to a construction method for a deep foundation pit support structure. Background technique

[0002] With the increasing shortage of urban construction land and the increasing scale of underground space development and utilization, the number of deep foundation pit projects is increasing, the excavation area of ​​foundation pits is increasing, and the excavation depth is getting deeper and deeper. Deep foundation pit support projects The cost is getting higher and higher, and the design of the supporting structure is becoming more and more complicated.

[0003] The support structure of row piles (diaphragm wall) plus reinforced concrete inner support is a main support form of deep foundation pit support at present. There are usually two forms of reinforced concrete internal support according to its plane layout: one is the internal support structure system of opposite braces and ang...

Claims

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