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| 积石峡水电站导流洞交叉段水平层状岩体稳定数值仿真分析 | |
| 引用本文： | 苏晓军,李龙,益波.积石峡水电站导流洞交叉段水平层状岩体稳定数值仿真分析[J].水力发电,2011,37(11). |
| 作者姓名： | 苏晓军 李龙 益波 |
| 作者单位： | 1. 黄河上游水电开发有限责任公司工程建设分公司,青海西宁,810000 2. 中国水利水电第四工程局有限公司第一分局,青海西宁,810006 3. 中国水电顾问集团西北勘测设计研究院,陕西西安,710065 |
| 摘 要： | 积石峡水电站导流洞及中孔泄洪洞交叉段设计体形复杂,且顶拱上方有一3～10 cm厚的软弱夹层穿过,围岩整体稳定性差,安全问题突出。为确保交叉段顺利贯通及施工安全,拟定了5种开挖和支护方案,采用数值仿真分析系统分析比较了不同开挖和支护方案下施工期围岩和支护的稳定性,确定了交叉段的开挖方式和支护技术措施,经实际应用,效果良好。 |
| 关 键 词： | 交叉段 开挖 支护 稳定性 数值仿真 积石峡水电站 |
Numerical Analysis on the Stability of Horizontal Layered Rock Masses in the Cross Section of Diversion Tunnel in Jishixia Hydropower Station |
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| Su Xiaojun,Li Long,Yi Bo.Numerical Analysis on the Stability of Horizontal Layered Rock Masses in the Cross Section of Diversion Tunnel in Jishixia Hydropower Station[J].Water Power,2011,37(11). | |
| Authors: | Su Xiaojun Li Long Yi Bo |
| Affiliation: | Su Xiaojun1,Li Long2,Yi Bo3(1.The Engineering Construction Branch Company of Huanghe Hydropower Development Co.,Ltd.,Xining 810000,Qinghai,China,2.The Sub-bureau No.1 of Sinohydro Engineering Bureau No.4 Co.,Xining 810006,3.HydroChina Xibei Engineering Corporation,Xi'an 710065,Shaanxi,China) |
| Abstract: | The shape design of the cross section of diversion tunnel and middle spillway tunnel in Jishixia Hydropower Station project is complex,and there is a week intercalated layer with a thickness of 3-10 m in the crown area,the stabilities of surrounding rock masses are poor.For guaranteeing the safe construction,five excavation and support programs are developed and the stabilities of surrounding rocks and support under different program are simulated numerically and compared to determine the final construction... |
| Keywords: | cross section excavation support stability numerical simulation Jishixia Hydropower Station |
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