Interaction between pile-anchor supporting structure and soil in deep excavation

ZHOU Yong; ZHU Ya-wei

doi:10.16285/j.rsm.2016.2524

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Interaction between pile-anchor supporting structure and soil in deep excavation

更新时间：2026-06-25

- Interaction between pile-anchor supporting structure and soil in deep excavation
- Vol. 39, Issue 9, Pages: 3246-3252(2018)
- 作者机构：
  
  1. 兰州理工大学甘肃省土木工程防灾减灾重点实验室,甘肃,兰州,730050
  2. 兰州理工大学西部土木工程防灾减灾教育部工程研究中心,甘肃,兰州,730050
  3. 兰州理工大学土木工程学院,甘肃,兰州,730050
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2016.2524
  CLC： TU470.1
- Online First：08 October 2018，
  
  Published：2018
- 稿件说明：
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ZHOU Yong, ZHU Ya-wei. Interaction between pile-anchor supporting structure and soil in deep excavation[J]. 2018, 39(9): 3246-3252.
DOI：

ZHOU Yong, ZHU Ya-wei. Interaction between pile-anchor supporting structure and soil in deep excavation[J]. 2018, 39(9): 3246-3252. DOI： 10.16285/j.rsm.2016.2524.

摘要

目前深基坑桩锚支护结构的研究已引起学者的高度关注，支护结构与土体之间协同工作的研究仍然是一个亟待深入研究的课题。以桩锚支护结构与土体相互作用体系为研究对象，考虑桩后土抗力与锚杆拉力共同作用，建立静力平衡方程，在前人总结的桩锚变形协调条件的基础上，对其进行改进，并与变形协调条件的其他3种算法对比。结果表明，改进的方法更能反映桩锚支护结构受力变形的实际情况，由此算得的锚杆设计拉力较其他方法算得的锚杆设计拉力偏大，这是因为克服了前述方法中忽略锚杆倾角、增大了锚杆的伸长量以及未考虑桩锚实际受力状态的缺点。结合工程实例，应用FLAC3D模拟的桩身内力与改进方法算得的桩身内力基本吻合，说明改进方法的优越性。

Abstract

The studies of pile-anchor supporting structure of deep foundation pits have aroused the attention of scholars

and the interaction between supporting structure and soil still needs to be further researched. We established the static equilibrium equation considering the combined action of soil resistance after the pile and anchor tensile. The pile anchor deformation compatibility condition is modified and compared with the other three algorithms of deformation compatibility condition. The results show that the improved method can reflect the actual situation of the pile anchor supporting structure deformation. The designed pulling force of anchor is larger than other methods of designed pulling force of anchor. To overcome the ignored obliquity of the anchor

the anchors' elongation is increased and the stress states are not considered. FLAC3D is used to simulate the pile body’s internal force. The calculated internal force of pile body by the modified method is consistent

indicating the advantage of the proposed method.

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