| 防冲抗爆恒阻大变形锚杆在锦屏二级水电站引水隧洞岩爆段施工中的应用 |
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| 引用本文： | 李元,张鹏,张东明,王媛.防冲抗爆恒阻大变形锚杆在锦屏二级水电站引水隧洞岩爆段施工中的应用[J].成都大学学报(自然科学版),2012,31(3):284-286. |
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| 作者姓名： | 李元 张鹏 张东明 王媛 |
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| 作者单位： | 1. 二滩水电开发有限责任公司,四川成都,610051
2. 成都大学城乡建筑学院,四川成都,610106 |
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| 摘 要： | 防冲抗爆恒阻大变形锚杆包括杆体、托盘和螺母,其恒阻装置,可以在巷道围岩发生大变形时自动拉伸,并保持恒定的工作阻力.锦屏二级引水隧洞开挖极强岩爆洞段施工时首次引入了防冲抗爆恒阻大变形锚杆,工程实际应用验证了其可行性,此对类似工程具有借鉴意义.
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| 关 键 词： | 恒阻大变形 锚杆 岩爆 应用 |
Construction Technology Application of Scour Burst and Constant Resistance and Large Deformation Bolt in Seepage Diversion Tunnel of Jinping Hydroelectric Station Ⅱ |
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| LI Yuan,ZHANG Peng,ZHANG Dongming,WANG Yuan.Construction Technology Application of Scour Burst and Constant Resistance and Large Deformation Bolt in Seepage Diversion Tunnel of Jinping Hydroelectric Station Ⅱ[J].Journal of Chengdu University (Natural Science),2012,31(3):284-286. |
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| Authors: | LI Yuan ZHANG Peng ZHANG Dongming WANG Yuan |
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| Institution: | 1 .Ertan Hydropower Development Company Ltd., Chengttu 610051, China; 2.School Ⅱ Urban and Rural Construction, Chengdu University, Chengdu 610106, China) |
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| Abstract: | Scour, burst, constant resistance and large deformation bolt is the patent of invention of Prof. He Manchao, who is from Beijing Zhongkuang far-reaching Energy Research Academy of Environmental Scienc- es, including a rod body, a tray and a nut. Among them, constant resistance device is also one of the part, which can automatically extend when roadway surrounding rock deforms largely and maintain constant work- ing resistance. The bolt was first introduced when strong rock burst tunnel of secondary diversion tunnel at Jinping was excavated. The findings of this experiment validate its feasibility, which has some reference for projects alike. |
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| Keywords: | constant resistance and large deformatio bolt rockburst application |
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