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| 高地应力下圆形巷道临界冲击地压解析解 | |
| 引用本文： | 郭延华,姜福兴,张常光. 高地应力下圆形巷道临界冲击地压解析解[J]. 工程力学, 2011, 0(2): 118-122 |
| 作者姓名： | 郭延华 姜福兴 张常光 |
| 作者单位： | 北京科技大学土木与环境工程学院;河北工程大学土木工程学院;同济大学岩土及地下工程教育部重点实验室; |
| 基金项目： | 国家自然科学基金项目(40674017、50774012); 国家“十一五”科技支撑计划项目(2007BAK24B04); 国家重点基础研究发展计划(973)项目(2010CB226803) |
| 摘 要： | 基于统一强度理论和靼性应变损伤模型,合理考虑中间主应力效应和剪胀特性,对高地应力下的圆形巷道进行弹塑性分析,由冲击地压扰动失稳理论建立圆形巷道临界冲击地压解析解.经与模型试验和工程实测数据比较,验证了解析解的正确性,并得出统一强度理论参数、剪胀参数、支护力、升降模量比和内摩擦角对临界冲击地压的影响规律.结果表明:确定高... |
| 关 键 词： | 采矿工程 冲击地压 统一强度理论 中间主应力 剪胀 |
ANALYTICAL SOLUTION FOR CRITICAL ROCKBURST OF A CIRCULAR CHAMBER SUBJECTED TO HIGH IN-SITU STRESS |
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| GUO Yan-hua,JIANG Fu-xing,ZHANG Chang-guang. ANALYTICAL SOLUTION FOR CRITICAL ROCKBURST OF A CIRCULAR CHAMBER SUBJECTED TO HIGH IN-SITU STRESS[J]. Engineering Mechanics, 2011, 0(2): 118-122 | |
| Authors: | GUO Yan-hua JIANG Fu-xing ZHANG Chang-guang |
| Affiliation: | GUO Yan-hua1,2,JIANG Fu-xing1,ZHANG Chang-guang3(1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China,2.College of Civil Engineering,Hebei University of Engineering,Handan,Hebei 056038,3.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Tongji University,Shanghai 200092,China) |
| Abstract: | Based on the unified strength theory and a plastic strain damage model,the elastic-plastic analysis for a circular chamber subjected to high in-situ stress is conducted,by taking intermediate principal stress and shear dilation into account.The analytical solution for critical rockburst of a circular chamber is obtained by using the disturbance instability theory of rockburst.The results of the proposed analytical solution derived in this paper are found in good agreement with the results of the model exper... |
| Keywords: | mining engineering rockburst unified strength theory intermediate principal stress shear dilation |
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