| 基于地应力椭球和椭圆的松动圈计算方法 |
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| 引用本文： | 戚玉亮,胡治中,虞子平,鲁嘉.基于地应力椭球和椭圆的松动圈计算方法[J].华侨大学学报(自然科学版),2012(2):195-200. |
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| 作者姓名： | 戚玉亮 胡治中 虞子平 鲁嘉 |
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| 作者单位： | 同济大学岩土及地下工程教育部重点实验室;九州大学建设系统工学系;广东省珠海工程勘察院;浙江建设投资集团有限公司;浙江省建工集团有限责任公司 |
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| 基金项目： | 国家高技术研究发展计划项目(2006AA11Z118);国家自然科学基金资助项目(40872179) |
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| 摘 要： | 采用地应力椭球和地应力椭圆分析方法,结合实测的车集矿地应力结果,以及矿区地质资料、地应力测量中揭露的地质情况,研究原岩应力与巷道松动圈的关系.结果表明:在地应力作用下,不同的巷道走向将影响到其周边围岩的受力状况,随着地应力椭圆离心率的增大,巷道周围受力的不均匀性增加.走向一定的情况下,将应力椭圆视为围岩破碎带的形状,从而进行巷道断面形状的优化和支护参数的优选是合理可行的.
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| 关 键 词： | 原始地应力 松动圈 地应力椭球 地应力椭圆 |
Loose Circle Calculation Method Based on Geo-Stress Ellipsoid and Ellipse |
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| QI Yu-liang,HU Zhi-zhong,YU Zi-ping,LU Jia.Loose Circle Calculation Method Based on Geo-Stress Ellipsoid and Ellipse[J].Journal of Huaqiao University(Natural Science),2012(2):195-200. |
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| Authors: | QI Yu-liang HU Zhi-zhong YU Zi-ping LU Jia |
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| Institution: | 1.Key Laboratory of Geotechnical and Underground Engineering,Ministry of Education, Tongji University,Shanghai 200092,China; 2.Earthquake Engineering Laboratory of Kyushu University,Fukuoka 819-0395,Japan; 3.Guangdong Zhuhai Engineering Investigation Institute,Zhuhai 519002,China; 4.Zhejiang Construction Investment Group Co.Ltd.,Hangzhou 310012,China; 5.Zhejiang Civil Engineering Group Co.Ltd.,Hangzhou 310012,China) |
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| Abstract: | Based on the in-situ geo-stress data of Juji mine,and combined with the mine geological data and the geological conditions obtained in the geo-stress measuring process,the method of the stress ellipsoid and ellipse is used to study the relationship between in-situ rock stress and the roadway loose circle.The results indicate that: under the action of geo-stress,different roadway strike will affect the force condition of the surrounding rock;the non-uniformity of roadway force increases with the increment of stress ellipse eccentricity.To certain roadway strike,it is reasonable and feasible that the roadway cross-section shape and support parameters are optimized by regarding the geo-stress ellipse as the shape of rock fracture zone. |
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| Keywords: | geo-stress loose circle geo-stress ellipsoid geo-stress ellipse |
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