基于改进切线角法的露天矿滑坡预警应用  

Landslides early warning application based on improved tangent angle method in Open-pit Mines

作　　者：李千慧 LI Qianhui(China Coal Technology&Engineering Group Shenyang Research Institute,Fushun 113122,China;State Key Laboratory of Coal Mine Safety Technology,Fushun 113122,China)

机构地区：[1]中煤科工集团沈阳研究院有限公司,辽宁抚顺113122 [2]煤矿安全技术国家重点实验室,辽宁抚顺113122

出　　处：《露天采矿技术》2025年第2期31-35,共5页Opencast Mining Technology

基　　金：国家重点研发计划资助项目(2021YFC3001902)。

摘　　要：为了有效实现对滑坡灾害的监测预警,避免和减轻灾害带来的威胁及损失;基于蠕变三阶段理论的改进切线角模型,研究了滑坡动态发展过程中切线角的变化规律;结合滑坡案例的应用分析,实现了对滑坡的分阶段预警。结果表明:滑坡发生过程中,改进的切线角方法能够有效区分滑坡加速变形过程中的不同加速阶段,明确加速趋势;应用改进的切线角法结合速度倒数和斜率滑坡时间预测方法能够有效实现预警预报,为及时采取预警措施提供数据支撑。In order to realize the monitoring and early warning of landslide disaster effectively,avoid and reduce the threat and loss caused by disaster,based on the improved tangential angle model of three-stage creep theory,the article studies change law of tangential angle in the dynamic development of landslide,combines with the application analysis of landslide cases,successfully realizes the stage early warning of landslide.The results show that the improved tangential angle method can effectively distinguish the different acceleration stages in the process of landslide acceleration deformation and identify the acceleration trend.The improved tangential angle method combined with velocity reciprocal and slope landslide time prediction method can effectively realize early warning and forecast,which provide data support for taking early warning measures in time.

关 键 词：切线角法 预警模型 滑坡灾害 边坡监测 蠕变理论 

分 类 号：TD824.7[矿业工程—煤矿开采]