| 电阻应变式测力锚杆(锚杆)载荷下降的原因分析 |
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| 引用本文： | 吴志刚.电阻应变式测力锚杆(锚杆)载荷下降的原因分析[J].煤炭技术,2009,28(1). |
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| 作者姓名： | 吴志刚 |
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| 作者单位： | 天地科技股份有限公司开采设计事业部,北京,100013 |
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| 摘 要： | 提出测力锚杆(锚杆)与围岩的工作关系图,论述螺纹副松弛和围岩法向接触刚度降低是测力锚杆非锚固段载荷降低的主要原因。指出围岩的法向接触刚度是锚杆支护设计一个需要注意的问题。
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| 关 键 词： | 测力锚杆 载荷 法向接触刚度 |
Causes Analysis on Load Recluction of Resistance Strain Dynamometry Bolt(Bolt) |
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| WU Zhi-gang.Causes Analysis on Load Recluction of Resistance Strain Dynamometry Bolt(Bolt)[J].Coal Technology,2009,28(1). |
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| Authors: | WU Zhi-gang |
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| Affiliation: | Coal Mining and Design Technology Dept.;Tiandi Science & Technology Co.Ltd;China Coal Research Institute;Beijing 100013;China |
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| Abstract: | The working relationship map between dynamometry bolt and surrounding rock is proposed.The vice thread relaxation and normal contact stiffness reduction are the main reasons for load reduction of dynamometry bolt in the non-anchored section.The normal contact stiffness of surrounding rock is a problem need to pay attention in bolt supporting design. |
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| Keywords: | dynamometry bolt load normal contact stiffness |
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