| 锚杆受拉时围岩的弹性变形分析 |
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| 引用本文： | 田冬俊,朱金才,曹光华.锚杆受拉时围岩的弹性变形分析[J].工程建设与设计,2010(9):102-105. |
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| 作者姓名： | 田冬俊 朱金才 曹光华 |
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| 作者单位： | 西北核技术研究所,西安,710024 |
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| 摘 要： | 将摩擦桩荷载传递模型应用于锚杆受力分析,通过理论推导获得弹性状态下锚杆受拉时围岩的弹性变形解析解,并分别讨论了有效锚固长度、扰动围岩表面半径与锚杆所受拉力的关系。通过解析解与数值解的对比分析,说明该荷载传递模型用于锚杆受力分析是可行的,基于该模型的分析结论对于锚杆设计具有一定的应用价值。
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| 关 键 词： | 荷载传递 扰动围岩半径 有效锚固长度 |
Elastic De formation Analysis on Surrounding Rock While Bolts Under Tensile Load |
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| TIAN Dong-jun,ZHU Jin-cai,Cao Guang-hua.Elastic De formation Analysis on Surrounding Rock While Bolts Under Tensile Load[J].Construction & Design for Project,2010(9):102-105. |
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| Authors: | TIAN Dong-jun ZHU Jin-cai Cao Guang-hua |
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| Affiliation: | (Northwest Institute of Nuclear Technology, Xi＇an 710024, China) |
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| Abstract: | Through theoretical analysis on the mechanical properties of bolts based on the pile-soil load transfer model, a analytic solution of elastic deformation on surrounding rock while bolts under tensile load is obtained. Then, the relationship between valid anchorage length and disturbed-radius of surrounding rock and tensile force of bolts are discussed. In addition, according to the comparison of analytic solution and nurnerieal calculation, it is concluded that analytic analysis on mechanical properties of bolts based on pile-soil load transfer model is feasible, and the analysis results can be applied to the bolts design. |
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| Keywords: | load transfer disturbed-radius of surrounding rock valid anchorage length |
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