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| 基于Hoek-Brown强度准则的洞室稳定影响分析 | |
| 引用本文： | 吴清星,陈洁,陈素侠.基于Hoek-Brown强度准则的洞室稳定影响分析[J].科学技术与工程,2012,12(21):5371-5373,5378. |
| 作者姓名： | 吴清星 陈洁 陈素侠 |
| 作者单位： | 1. 中国地质大学(北京)工程技术学院,北京100083;河南省有色金属地质矿产局,郑州450016 2. 中国林业科学研究院,北京,100091 3. 中交第一航务工程勘察设计院有限公司,天津,300222 |
| 摘 要： | 基于非线性Hoek-Brown强度准则,引入洞室围岩稳定系数,研究分析了岩体力学参数及初始应力场对地下洞室稳定性的影响。结果表明,保持σ3不变,侧压系数k增加以及保持σ3不变,主应力差σ1-σ3增加时,洞室稳定性相应降低。Hoek-Brown强度准则中,表征岩体特征参数GSI、mi以及岩石单轴抗压强度σci量值增加,洞室稳定性亦相应增加。 |
| 关 键 词： | Hoek-Brown强度准则 洞室稳定性 影响因素 |
| 收稿时间： | 2012/3/21 0:00:00 |
| 修稿时间： | 2012/3/21 0:00:00 |
Sensibility Analysis of Underground Excavation Stability Based on the Hoek-Brown Strength Criterion |
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| wuqingxing,and.Sensibility Analysis of Underground Excavation Stability Based on the Hoek-Brown Strength Criterion[J].Science Technology and Engineering,2012,12(21):5371-5373,5378. | |
| Authors: | wuqingxing and |
| Institution: | 4(School of Engineering and Technology,China University of Geosciences1,Beijing 100083,P.R.China;Henan Provincial Non-ferrous Metal Geological and Mineral Resouroes Bureau2,Zhengzhou 450016,P.R.China;Chinese Academy of Forestry3,Beijing 553001,P.R.China;CCCC First Habour Consultants Co.,Ltd4.,Tianjin 300222,P.R.China) |
| Abstract: | Based on the nonlinear strength criterion,Hoek-Brown strength criterion,the sensibility of underground excavation stability on mechanical parameter and in-situ stress using the stability degree(SD) is researched.Conclusions can be drawn as follows: the SD is decreased with increasing of the k while σ3 is invariable,σ1-σ3 increase while σ1 is invariable.the SD is increased with increasing of the GSI,mi and σci. |
| Keywords: | Hoek-Brown strength criterion stability of underground excavation influence factor |
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