| 大金坪引水隧洞围岩岩爆灾害预测 |
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| 引用本文： | 张建斌,段君奇. 大金坪引水隧洞围岩岩爆灾害预测[J]. 西北水电, 2009, 0(1) |
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| 作者姓名： | 张建斌 段君奇 |
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| 作者单位： | 中国水电顾问集团西北院地质研究所,兰州,730050 |
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| 摘 要： | 大金坪引水隧洞位于高山峡谷区,受断裂带附近应力集中影响的洞段、软硬岩相间的洞段、硬脆岩质洞段、围岩具备岩爆灾害形成的基本条件,应当予以预测评估.通过评估,可预防岩爆灾害对施工人员、设备的伤害.
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| 关 键 词： | 引水隧洞 应力作用 硬脆围岩 岩爆灾害 |
Prediction of surrounding rock burst in headrace tunnels of Dajinping hydropower project |
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| ZHANG Jian-bin,DUAN Jun-qi. Prediction of surrounding rock burst in headrace tunnels of Dajinping hydropower project[J]. Northwest Water Power, 2009, 0(1) |
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| Authors: | ZHANG Jian-bin DUAN Jun-qi |
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| Affiliation: | Geology Research Institute of Northwest Hydro Consulting Engineers;CHECC;Lanzhou 730050;China |
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| Abstract: | Diversion tunnels of Dajinping hydropower project are located in valley area.At tunnel sections affected by stress concentration near the fracture zones,alternated with soft and hard rocks,or composed of hard fragile rocks,the hazard of surrounding rock burst is likely.Therefore prediction and evaluation shall be made so as to protect construction workers and equipment from rock burst hazard. |
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| Keywords: | headrace tunnel stress effect hard fragile surrounding rock rock burst hazard |
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