大直径可回收锚杆力学特性数值分析

陈志博; 王向军; 丁文其

大直径可回收锚杆力学特性数值分析 English Version

(1. 同济大学地下建筑与工程系，上海 200092；2. 同济大学岩土及地下工程教育部重点实验室，上海 200092；3. 华东建筑设计研究院有限公司，上海 200002)

详细信息

作者简介:
陈志博(1988– )，男，辽宁盘锦人，硕士研究生，主要从事基坑工程与地下工程数值计算的研究工作。

中图分类号: TU47
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

Numerical analysis of mechanical behaviors of large-diameter recoverable anchors

(1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2.Key Laboratory of Geotechnical and Underground Engineering, Ministry of Education, Tongji University, Shanghai 200092, China; 3. East China Architectural Design Institute, Shanghai 200002, China)

摘要

摘要: 大直径可回收锚杆具有单锚拉拔承载力大、经济性好的特点，在基坑及边坡等各类支护工程中具有较好的应用前景。采用大型商业化有限元软件对大直径可回收锚杆的承载变形特性进行了数值模拟分析。通过参数分析表明：大直径可回收锚杆的承载变形特性与锚固体的特性直接相关，并给出其极限承载力随着锚固体长度和直径增大而增大的变化规律；当锚杆的水平倾角在15°~35°之间时，锚杆的承载变形特性优于其它角度时的承载变形特性。上述结论可为工程实践提供一定的参考价值。
- 大直径可回收锚杆 /
- 承载变形特性 /
- 数值分析
Abstract: The large-diameter recoverable anchor has many notable advantages, including good load-bearing capacity and economic benefits, thus it will have good application prospect in excavation and slope engineering. Based on the FEM, the bearing and deformation behaviours of large-diameter recoverable anchors are analyzed. The results indicate that the bearing and deformation behaviors of large-diameter recoverable anchors have a close relation with those of bonding segments. The ultimate bearing capacity increases with the growth of the length and diameter of bonding segments, and when horizontal angle of bonding segments is between 15癮nd 35?, the anchors have better behaviours. These results may provide reference for some projects.
- large-diameter recoverable anchor /
- bearing deformation behavior /
- numerical analysis

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参考文献(7)

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