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Novel deep foundation pit supporting structure and construction method for same

A technology of support structure and construction method, which is applied in the direction of basic structure engineering, excavation, construction, etc., can solve the problems such as the complex stress of the ring beam support system, achieve the effects of saving support materials, reducing project cost, and having a wide range of applications

Inactive Publication Date: 2015-04-29
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stress of the ring beam support system during the construction process is very complicated, and the common calculation methods (classical method and elastic method) cannot well analyze the internal force and deformation of the ring beam support system during the construction process.

Method used

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  • Novel deep foundation pit supporting structure and construction method for same
  • Novel deep foundation pit supporting structure and construction method for same
  • Novel deep foundation pit supporting structure and construction method for same

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Such as figure 1 and 2 Shown is an embodiment of the present invention, including support pile 01, column pile 02 and a plurality of ring beams 13 of different sizes. The ring beam 13 is connected to the pile head of the column pile 02, and is constructed sequentially from large to small. The size of each ring beam 13 is adapted to the shape of the area during construction, and at least corresponds to the three sides of the polygon in this area. tangent to be as large a circle as possible within the area. To ensure construction safety, the minimum distance between the outer edges of the ring beams 13 and between the outer edges of the ring beams 13 and the edge 12 of the foundation pit is 500-3000 mm. Further, the ring beams 13 are connected by pouring concrete slabs 14 to enhance the supporting strength.

[0039] Its basic construction metho...

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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.

Description

technical field [0001] The invention relates to a building structure, in particular to a support structure suitable for deep foundation pits, in particular to a novel deep foundation pit support structure. [0002] The invention also relates to a construction method of a novel deep foundation pit supporting structure. Background technique [0003] 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. [0004] The supporting structure of row piles (diaphragm wall) plus reinforced concrete inner support is a main support form of deep foundation pit support at present. There a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 黄广龙黄磊李亚帅芦云星白友恩周瑞婷
Owner NANJING UNIV OF TECH
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