露天转地下开采高边坡变形监测与稳定性预测

Stability Forecast and Deformation Measurement of High Slope for Transition from Open-pit to Underground Mining

针对厂坝露天矿工程地质条件、边坡形态、稳定状态以及监测目的,提出了以GPS为主的动态综合变形监测方案,并开展了长期分阶段和保重点的动态变形综合监测。通过变形监测,并结合理论分析和数值模拟,预测了北帮37线附近滑体的失稳时间为2007年4月10日~4月20日。实际上,在2007年5月初,北帮边坡连续出现了几次不同规模的滑塌,由于矿山采取了相应的应急预案,避免边坡滑塌给井下生产带来安全事故,为矿山的安全生产奠定了基础。

According to the conditions of engineering geology,the configuration and stabilization stability of slope and the goal of slope measurement in Changba open-pit,a integrated monitoring scheme of dynamic deformation of slope was put forward,which uses GPS as main tool.The integrated long-term monitoring of dynamic deformation of main slopes has been carried out by stages.Based on the deformation monitoring of slope,the theoretical analysis and numerical simulation of slope stability,it was predicted that the ...