块体理论在潜在崩塌体稳定性分析中的应用

随着国民经济的快速发展,公路、铁路、水利水电、矿山等工程建设的高陡岩质边坡越来越多,崩塌的问题就越来越突出。由于崩塌地质灾害给公路、铁路工程建设和运营安全造成严重的威胁,为了有效防止崩塌地质灾害的发生,保护人民生命财产的安全,文章提出在边坡工程地质调查基础上,采用块体理论,预测边坡潜在的崩塌范围。而块体理论是近年来发展和完善的一种适合于岩体稳定性分析的行之有效的工程分析方法。文章采用块体理论中的矢量分析法与赤平投影相结合的方法,用Matlab软件开发了相应的计算机程序,将其应用于潜在崩塌岩体的稳定性分析,可自动找出可动块体,为崩塌地质灾害的监测预报以及治理等提供了依据。

Application of block theory in stability analysis of potential rockfall masses

With the fast development of the national economy,and great needs to build highways,railways,hydroelectric stations and mines,the problem of the rock-fall becomes more and more serious.Because the rock-falls put serious threat for the engineering construction and transportation,human properties and lives,the prevention against them is very important.On the basis of slope geologic survey,the authors predicted the area of a potential rock-fall using the block theory.This theory,coming into being only several years ago,is useful for analysis of rock mass stability.In this paper,the authors developed a computer program for block theory with Matlab language,using vector analysis and stereo graphics of the block theory.The program was applied in the analysis of potential rock fall mass stability.It can find the movable block automatically,which can be used as a clue of the monitoring forecasting and regulation of rock fall.