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Undercrossing subway tunnel pit supporting and protecting structure of high-rise building or super high-rise building

A technology for high-rise buildings and foundation pit support, which is applied to the field of building foundation pit support structures and the foundation pit support structures of underground subway tunnels, and can solve problems such as tunnel damage.

Active Publication Date: 2009-04-15
广州市设计院集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the upper structure floor will damage the tunnel in the support structure of the deep foundation pit between the existing super high-rise building and the underground subway tunnel, and to provide a kind of underpass for high-rise or super high-rise buildings. Foundation Pit Support Structure of Subway Tunnel

Method used

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  • Undercrossing subway tunnel pit supporting and protecting structure of high-rise building or super high-rise building

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specific Embodiment 1

[0015] Such as figure 1 As shown, the support structure of the deep foundation pit of the present invention includes support piles 1, steel frame support structures 2 and structural underpinning plates 3, the support piles 1 are arranged on the two outer sides of the subway tunnel, and the structural underpinning plates 3 Set above the subway tunnel, one end of the steel frame support structure 2 is fixedly connected to the support pile 1, and the other end of the steel frame support structure 2 is fixed to the structural underpinning plate 3 to form a structural underpinning plate 3 passing through the steel frame support structure 2 span A deep foundation pit support structure connected to support piles 1, the support piles 1 are manual hole-digging piles in the early stage of construction.

[0016] Since the supporting structure bridges the structural underpinning slabs on the support piles on both sides of the subway tunnel roof through the steel grid and supporting beams,...

specific Embodiment 2

[0023] The characteristics of this embodiment: a reinforced concrete support beam 4 is provided at the elevation of the structural underpinning plate 3, and the two ends of the reinforced concrete support beam 4 are fixedly connected with the support pile 1, and the rest are the same as in the first embodiment.

specific Embodiment 3

[0024] The characteristics of this embodiment: a detachment layer 5 is provided between the structural underpinning plate 3 and the ground floor of the foundation pit to ensure that the settlement and deflection deformation of the building will not damage the subway tunnel, and the rest are the same as the embodiment 2.

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Abstract

The invention discloses an under penetrating metro tunnel foundation pit supporting structure of high-rise or super high-rise buildings, which comprises supporting piles (1), a steel framework supporting structure (2) and a structure underpinning plate (3); the supporting piles (1) are arranged at the two outer lateral surfaces of the metro tunnel, the structure underpinning plate (3) is arranged above the metro tunnel, one end of the steel framework supporting structure (2) is fixedly connected with the supporting pile (1), and the other end of the steel framework supporting structure (2) is fixed with the structure underpinning plate (3), thus forming the deep foundation pit supporting structure that the structure underpinning plate (3) is arranged on the supporting pile (1) in a bridge connection way by the steel framework supporting structure (2). The supporting structure causes the structure underpinning plate not to directly or indirectly act on the tunnel top, thus avoiding the damage to the tunnel top caused by the self weight of the structure underpinning plate.

Description

technical field [0001] The invention relates to a building foundation pit support structure, in particular to a foundation pit support structure for a subway tunnel passing under a high-rise or super high-rise building. It belongs to the field of soil engineering construction. Background technique [0002] The development of urban construction has driven the development of underground space construction, and various types of underground spaces have been gradually developed by people for various purposes. As an important urban rail transit tool in the 21st century, the underground railway has been paid more and more attention by people. However, most of the subway tunnels that have been built pass through the area 5m directly below the basement of the building to be built, which causes certain difficulties for the foundation pit construction between super high-rise buildings and subway tunnels. In the prior art, the foundation pit support structure of the building to be bui...

Claims

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Application Information

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IPC IPC(8): E02D17/02
Inventor 朱宗明李崇彦王文杰
Owner 广州市设计院集团有限公司
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