高速公路下伏采空区剩余沉降量FLAC^(3D)计算方法  

A FLAC^(3D) METHOD FOR CALCULATION OF RESIDUAL SUBSIDENCE IN A MINING AREA BENEATH AN EXPRESSWAY

作　　者：王生俊[1] 贾学民[2] 韩文峰[1] 崔素敏[1] 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000 [2]石家庄经济学院地下工程系,河北石家庄050031

出　　处：《岩石力学与工程学报》2005年第19期3545-3550,共6页Chinese Journal of Rock Mechanics and Engineering

摘　　要：采空区剩余沉降量计算是确定采空区危害程度的一种定量方法,其可靠性、准确性和可操作性直接关系到采空区治理方案的选择与评价。根据采空区塌陷冒落带的力学特征,利用横波参数或瑞雷波参数与岩体静力学参数相类比,确定工程岩体参数评价指标。针对采空区冒落带当前特征,使用FLAC3D软件对高速公路下伏采空区剩余沉降量进行计算,并与当前几种采空区剩余沉降计算方法相比较,阐述其优越性。采空区治理后的实测数据表明:该计算方法准确可靠,可为高速公路下伏采空区剩余沉降定量计算提供一条新途径。The calculation of residual subsidence in mining rank derived from the mining area. The reliability, accuracy choice and assessment of the scheme for reinforcing mining area is a quantitative method to evaluate hazards and operation of the calculation directly affect the areas. Based on the mechanical characteristics of collapse, the parameters of traverse wave or Rayleigh against static rock mass are used to determine assessment indices for the parameters of engineering rock mass. Under the current status of collapse of a mining area, FLAC^3D software is used to calculate and evaluate the residual subsidence of the mining area beneath an expressway; and the advantage of the method is discussed as compared to other calculation methods of residual subsidence. Through a case study of a reinforced mining area, the testing data show that the proposed method is accurate and reliable, and it can provide a new way to evaluate and calculatethe residual subsidence in mining area beneath an expressway.

关 键 词：公路工程 采空区 剩余沉降 计算方法 FLAC^3D 岩体参数 

分 类 号：U412.366[交通运输工程—道路与铁道工程]