Mine Safety Technology Branch, China Coal Research Institute State Key Laboratory of Coal Mining and Clean
Utilization (China Coal Research Institute)

为了掌握阴湾排土场边坡变形破坏规律,基于边坡地质资料和现场地表GPS位移监测结果,运用FLAC3D数值模拟软件分析了阴湾排土场边坡变形破坏机理。结合工程实践,分析了在滑坡区域继续排土对边坡稳定性的影响,并通过对2种排土压脚方案下边坡稳定性进行极限平衡分析,提出阴湾排土场滑坡治理措施及后续排土方案,治理后的阴湾排土场2个典型剖面的稳定性系数分别达到1.24、1.38,满足稳定性储备要求。结果表明:结合稳定性分析及工程实际综合考虑后的排土压脚方案对边坡的治理效果较好,对于指导后期排土工作和同类型矿山排土场边坡稳定治理具有指导意义。

In order to obtain the law of Yinwan dump deformation and failure of slope and propose targeted control measures, this paper discussed the causes of Yi nwan landslide, based on the existing geological data and on- site displacement monitoring results from the surface GPS. Then, it analyzed the safety of the slope usin g FLAC3D software, and studied the failure mechanism to the creep slope. Combination with the engineering practice, considering the creep areas near to the influence of soil on the slope stability, and through to the two kinds of earth pressure foot for slope stability under the limit equllibrium analysis, the paper put forward cloudy bay I andslide governance measures and subsequent next dumping scheme and site management after the cloudy bay two typical section 1. 24, 1. 38 respectively, and the st ability coefficient of stability meet requirements. The results showed that the stability analysis and engineering practice after comprehensive consideration of soil presser foot scheme of creep slope governance was effective, for guiding the late row soil work and the same type mine dump slope stability control had a certain guiding sign ificance.

国家自然科学基金资助项目(51004065)；