A Simplified Analysis Method for the Lateral Deformation of Braced Excavations

doi:10.1007/s12204-013-1386-1

Abstract

Abstract: Pile-anchor retaining structure is widely used in foundation pit engineering and side slope engineering in many countries. In contrast to strut, pile-anchor retaining structure has its typical features and advantages. It does not occupy the internal space of the foundation pit, and the project cost is much lower. Accurate prediction of the lateral displacement of the retaining structure is very important in the design stage. A simplified analysis method and several calculation assumptions of the lateral deformation of pile-anchor retaining structures are set up according to the engineering features. The expression function of lateral displacement versus depth is solved by means of a fitted function and the quasi-elastic summation method. The parameters are obtained through the stiffness equation of the anchors and the principle of minimum potential energy. The analytical evaluation of the lateral deformation curve is then completed, whose applicability is proved through practical engineering.

Key words: excavation| pile-anchor retaining structure| fitted function| lateral deformation| analytical evaluation

摘要： Pile-anchor retaining structure is widely used in foundation pit engineering and side slope engineering in many countries. In contrast to strut, pile-anchor retaining structure has its typical features and advantages. It does not occupy the internal space of the foundation pit, and the project cost is much lower. Accurate prediction of the lateral displacement of the retaining structure is very important in the design stage. A simplified analysis method and several calculation assumptions of the lateral deformation of pile-anchor retaining structures are set up according to the engineering features. The expression function of lateral displacement versus depth is solved by means of a fitted function and the quasi-elastic summation method. The parameters are obtained through the stiffness equation of the anchors and the principle of minimum potential energy. The analytical evaluation of the lateral deformation curve is then completed, whose applicability is proved through practical engineering.

关键词: excavation| pile-anchor retaining structure| fitted function| lateral deformation| analytical evaluation

CLC Number:

TU 476.4

XU Hai-yong1 (许海勇), LIU Wei1,2 (刘玮), CHEN Long-zhu1* (陈龙珠). A Simplified Analysis Method for the Lateral Deformation of Braced Excavations[J]. Journal of shanghai Jiaotong University (Science), 2013, 18(2): 224-228.

References

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