| 采空塌陷影响因素分析及颗粒元数值模拟研究 |
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| 引用本文： | 马海涛,贺红生,王云海.采空塌陷影响因素分析及颗粒元数值模拟研究[J].矿冶工程,2010,30(1):1-4. |
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| 作者姓名： | 马海涛 贺红生 王云海 |
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| 作者单位： | 1. 中国安全生产科学研究院, 北京 100029;
2. 中国铝业股份有限公司 山西分公司, 山西 河津 043304 |
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| 基金项目： | 国家“十一五”科技支撑计划课题(2007BAK24B01-5);;中国安全生产科学研究院基本科研业务费专项资金项目(2007JBKY04) |
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| 摘 要： | 分析了顶板暴露面积、矿柱留设尺寸、开采深度、围岩性质、地质构造、工程扰动等因素对采空区稳定性的影响。提出了基于“复合应力拱”的采空群稳定性分析模型, 并采用颗粒流数值模拟方法对具体工程案例进行了计算验证, 结果与复合应力拱理论具有良好的符合性, 表明这一方法适用于分析采空塌陷等复杂的、不连续体的力学过程, 对矿山的安全生产具有一定的指导意义。
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| 关 键 词： | 采空区 塌陷 颗粒流 数值模拟 复合应力拱 |
| 收稿时间： | 2009-09-13 |
Study on Factors Affecting Goaf Collapse and Numerical Simulation with Particle Flow Code |
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| MA Hai-tao,HE Hong-sheng,WANG Yun-hai.Study on Factors Affecting Goaf Collapse and Numerical Simulation with Particle Flow Code[J].Mining and Metallurgical Engineering,2010,30(1):1-4. |
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| Authors: | MA Hai-tao HE Hong-sheng WANG Yun-hai |
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| Affiliation: | 1. China Academy of Safety Science & Technology, Beijing 100029, China;
2. Shanxi Branch, China Aluminum Co Ltd, Hejin 043304, Shanxi, China |
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| Abstract: | Factors affecting goaf stability,such as exposed roof area,pillar size,mining depth,wall rock properties,geological structure,disturbance of engineering activities,were analyzed.A model was proposed for analyzing goaf group stabilities based on the theory of complex stress arch,and it was validated by a real case with the method of particle flow simulation.The simulation results showed a good coherence with the complex stress arch theory.This method is proven to be applicable for analyzing the mechanic proc... |
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| Keywords: | goaf collapse particle flow numerical simulation complex stress arch |
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