E3S Web Conf.
Volume 143, 20202nd International Symposium on Architecture Research Frontiers and Ecological Environment (ARFEE 2019)
|Number of page(s)||4|
|Section||Architectural Engineering and Urban Construction|
|Published online||24 January 2020|
Comparative Study of Pile Pillared Support and Pile-anchor Retaining in Deep Pit
1 Shandong Key Laboratory of Civil Engineering Disaster Prevention & Mitigation, School of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao, Shandong, 266590, China.
2 Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, Japan.
* Corresponding author: firstname.lastname@example.org
Support pattern is the most important factor affecting the stability of foundation pit. In order to study the stable state of deep foundation pit, this paper selects pile pillared support and pile-anchor retaining which are high accident rate for comparison, and optimizes the construction scheme combined with the actual deep foundation pit project. The deformation of the supporting structure and the settlement of the foundation pit of Huiquan Square are used to analyze by FLAC3D. The variation range and trend of the internal force of the steel support and the axial force of the anchor cable are analyzed under the different values of the soil layer parameters, such as elastic modulus, cohesion and internal friction angle. The results show that the internal force of pile pillared support is greatly affected by the change of cohesion and the anchor axial force is greatly affected by the change of elastic modulus and internal friction angle. Meanwhile, the influence degree of each soil layer parameter on the internal force of support structure is different, which provides reference suggestions for the selection of support pattern of deep foundation pit.
© The Authors, published by EDP Sciences, 2020
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