露天矿高陡边坡稳定性研究现状及发展趋势

›› 2011, Vol. 32 ›› Issue (5): 1437-1451.

露天矿高陡边坡稳定性研究现状及发展趋势

杨天鸿¹，张锋春¹，于庆磊¹，蔡美峰²，李海洲¹

1.东北大学资源与土木工程学院，沈阳 110819；2.北京科技大学土木与环境工程学院，北京 100083

收稿日期:2010-07-11 出版日期:2011-05-10 发布日期:2011-09-23
作者简介:杨天鸿，男，1968年生，教授，主要从事岩石力学方面的研究工作
基金资助:
国家基金重点项目（No. 51034001）；国家自然科学基金（No. 10872046，No. 50874024）；博士点基金（No. 200801450003）；东北大学团队项目（No. 90101001）；沈阳科学技术计划项目（No.F10-148-9-00）

Research situation of open-pit mining high and steep slope stability and its developing trend

YANG Tian-hong¹, ZHANG Feng-chun¹, YU Qing-lei¹, CAI Mei-feng², LI Hai-zhou¹

1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China; 2 School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received:2010-07-11 Online:2011-05-10 Published:2011-09-23

摘要/Abstract

摘要： 在收集整理国内外相关资料的基础上，从边坡稳定性分析方法、边坡监测、预测预报方法等方面总结了目前边坡稳定性研究方法及预测预报研究现状，分析露天矿边坡的工程特点，指出当前露天矿边坡稳定性研究存在的问题，提出“边坡岩体渐进损伤破坏是边坡岩体失稳前兆本质特征”这一学术思路，认为边坡稳定性及预测预报研究发展趋势为建立基于微震监测信息反演的边坡岩体内部损伤演化模型，提出露天矿边坡岩体强度参数识别表征方法和动态稳定性评价方法，寻求边坡失稳过程岩体内部“空间”损伤劣化的微震活动性、强度弱化与边坡动态失稳之间的联系，以微震前兆信息和边坡岩体强度储备系数为失稳判据，实现露天矿边坡稳定性动态分析预测

关键词: 边坡稳定性分析, 微震监测, 参数反演, 数值模拟

Abstract: Based on the collection and review of the domestic and foreign literatures related to rock slopes, the situations and future development of slope stability analysis and monitoring are summarized in the aspect of methods for rock slope analysis, monitoring and forecast approaches. And especially, the characteristics of open-pit slope are analyzed in detail. The questions existing in the studies of open-pit slope stability are also pointed out. Further, a thought that the progressive damage evolution namely acoustic emission is the nature of rock slope instability is proposed; and the future development of studies of rock stability as well as forecasting methods are given. Firstly, the model which can calculate damage of rock slope from back analysis of the basis of microseismic monitoring data should be built; and the characterization methods of strength parameters of rock mass and evaluation methods of dynamic stability in open-pit slope engineering should be developed. These can give objective evidence to the strength reduction method for rock slope and provide mechanical basis for microseismic monitoring. Secondly, the relationship between microseismic activity, degradation of rock mass strength and slope dynamic instability will be investigated. Finally, precursory information of microseism and safety factor of slope are selected to form combined unstable criterion; and the prediction of rock slope instability and dynamic analysis of open-pit slope stability can be realized

Key words: slope stability analysis, microseismic monitoring, parameter inversion, numerical simulation

中图分类号:

TU 43

杨天鸿，张锋春，于庆磊，蔡美峰，李海洲. 露天矿高陡边坡稳定性研究现状及发展趋势[J]. , 2011, 32(5): 1437-1451.

YANG Tian-hong , ZHANG Feng-chun , YU Qing-lei , CAI Mei-feng , LI Hai-zhou. Research situation of open-pit mining high and steep slope stability and its developing trend[J]. , 2011, 32(5): 1437-1451.

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