›› 2018, Vol. 39 ›› Issue (9): 3433-3439.doi: 10.16285/j.rsm.2016.2964

• Geotechnical Engineering • Previous Articles     Next Articles

Design and test of a new type prefabricated supporting structure for foundation pit

OU Xiao-duo1,2, QUAN Shou-yue1,2, PENG Yuan-sheng1,2, JIANG Jie1,2, LÜ Bo3, JIANG Hua4   

  1. 1. College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China; 2. Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education , Guangxi University, Nanning, Guangxi 530004, China; 3. China Construction Communications Eng. Group Corp. Ltd., Beijing 100142, China; 4. Infrastructure Construction Co., Ltd., Guangxi Construction Engineering Group, Nanning, Guangxi 530004, China
  • Received:2016-12-23 Online:2018-09-11 Published:2018-10-08
  • Supported by:

    This work was supported by the National Natural Science Foundation of China(51568006, 41372361), the Geotechnical and Underground Engineering Innovation Team Project of Guangxi Science and Technology Department(2016GXNSFGA380008) and Guangxi Key Laboratory Systematic Research Project(2016ZDX11).

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Abstract: Foundation pit supporting structure is a temporary retaining facility, how to reduce the engineering cost and improve the construction speed under the precondition of ensuring the safety is a common concern. To satisfy the engineering demand, a new type of foundation pit supporting structure, cross-shaped assembled foundation pit supporting structure, is proposed, which is safe, rapid, low cost, recyclable and environmentally friendly. In this paper, the structure selection and calculation method of the lattice element are introduced. The field test relying on a project in new Wuxiang district, Nanning, Guangxi province, shows that the experimental values are similar to the calculated values. It proves the correctness of the proposed design method. With the support of the foundation pit supporting structure, the stability of foundation pit, deformation of foundation pit and the strength of support structure all can meet the requirements of specification, so it can be applied in similar projects in the future.

Key words: prefabricated, cross-shaped assembled foundation pit supporting structure, lattice, foundation pit supporting

CLC Number: 

  • TU 470

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