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| 输电线路节理化岩体注浆锚杆基础抗拔力数值模拟研究 | |
| 引用本文： | 孙益振,杨岳峰,郑卫锋,梁正召.输电线路节理化岩体注浆锚杆基础抗拔力数值模拟研究[J].大连理工大学学报,2011,51(4):473-478. |
| 作者姓名： | 孙益振 杨岳峰 郑卫锋 梁正召 |
| 作者单位： | 1. 大连理工大学工业装备结构分析国家重点实验室,辽宁大连,116024 2. 大连理工大学岩石破裂与失稳研究所,辽宁大连,116024 3. 中国电力科学研究院工程力学研究所,北京,100055 |
| 基金项目： | 国家电网公司科学技术资助项目(SGKJ[2007]1006) |
| 摘 要： | 采用正交数值模拟方法研究了岩体及注浆体相关因素对节理化岩体注浆锚杆基础抗拔力的影响.数值模型中考虑了岩石弹性模量、浆体弹性模量、节理迹长、节理倾角、锚杆埋深5个因素的变化,选择5因素4水平的正交试验方法进行了数值模拟.结果表明,锚杆埋深对注浆锚杆基础抗拔力的影响最大,其次为浆体弹性模量、岩石弹性模量、节理迹长、节理倾角,浆体弹性模量和强度对锚杆基础抗拔力的影响虽然大于岩石弹性模量的影响,但是提高浆体强度和弹性模量对节理化岩体注浆锚杆基础抗拔力的提升效果有限. |
| 关 键 词： | 输电线路 节理化岩体注浆锚杆基础 抗拔力 正交数值模拟试验 |
Numerical simulation research on pullout strength of grouted bolt foundation in jointed rock masses for transmission lines |
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| SUN Yizhen,YANG Yuefeng,ZHENG Weifeng,LIANG Zhengzhao.Numerical simulation research on pullout strength of grouted bolt foundation in jointed rock masses for transmission lines[J].Journal of Dalian University of Technology,2011,51(4):473-478. | |
| Authors: | SUN Yizhen YANG Yuefeng ZHENG Weifeng LIANG Zhengzhao |
| Institution: | SUN Yi-zhen1,YANG Yue-feng2,ZHENG Wei-feng3,LIANG Zheng-zhao2(1.State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China,2.Institute for Rock Instability and Seismicity Research,3.Institute of Engineering Mechanics,China Electric Power Research Institute,Beijing 100055,China) |
| Abstract: | The influence of rock mass and grouted material on the pullout strength of grouted bolt foundation in jointed rock masses is analyzed by the orthogonal numerical simulation.The numerical models focus on the following five factors: elasticity modulus of rock,elasticity modulus of mortar,trace lengths and joint inclination angle in rock mass,embedding depth of the bolt in the rock mass on four different levels of every factor.The experimental results reveal that the embedding depth of the bolt in the rock mas... |
| Keywords: | transmission line grouted bolt foundation in jointed rock mass pullout strength orthogonal numerical simulation test |
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