可回收锚杆(索)技术研究现状及展望

Study Status and Prospects of Recoverable Anchor Technology

锚杆(索)支护是一种较为成熟的岩土锚固技术手段,随着社会的发展和工程的需要,永久锚固的缺陷也逐渐显露,难以适应现代工程的要求。近年来,可回收锚杆(索)技术逐渐被推广应用。文章对已有可回收锚杆(索)的种类、理论研究进行了总结、对比分析,讨论了可回收锚杆(索)的设计方法以及回收情况,提出了以理论计算为基础、结合数值模拟进行动态设计的设计思路和方法;最后对可回收锚杆(索)发展中存在的问题进行了总结,提出了推广可回收锚杆(索)在临时支护中的应用、探索出一套完整适用的可回收锚杆(索)的设计方法、优化可回收锚杆(索)回收的建议和展望。

Anchor technology is a relative mature engineering technique for geotechnical anchor. With the social development and engineering demand, the disadvantages of the conventional anchor are gradually revealed which can＇t meet the requirements of projects demand in modern society. In recent years, the recoverable anchor technology has been gradually used. In this paper a simply summary and comparison are made in terms of the types and theoretical research results of existing recoverable anchor. The design and recovery situation of recoverable anchor are also discussed. A design method which is based on theoretical calculation and combined with numerical simulation is put forward. Finally, some problems in the recoverable anchor＇s development are concluded, and some suggestions and outlooks are put forward for popularization and application of the recoverable anchor in the temporary support engineering, exploration of a complete and universal design method, as well as optimizing the recovery of recoverable anchor.