基于稳定性分析的矿区公路路基高度计算  

Calculation of Roadbed Height in Mining Based on Stability Analysis

作　　者：王刚[1,2] 郭广礼[3,4] 李伶[5] 

机构地区：[1]重庆地质矿产研究院(外生成矿与矿山环境重庆市重点实验室),重庆400042 [2]煤炭资源与安全开采国家重点实验室重庆研究中心,重庆400042 [3]国土环境与灾害监测国家测绘局重点实验室(中国矿业大学),江苏徐州市221116 [4]江苏省资源环境信息工程重点实验室(中国矿业大学),江苏徐州市221116 [5]西南科技大学,四川绵阳市621000

出　　处：《矿业研究与开发》2012年第5期91-95,共5页Mining Research and Development

基　　金：国家自然科学基金重点项目(50834004);国家公益性行业基金资助项目(200811050)

摘　　要：为解决公路下采煤时,不同开采方式的采空区上覆岩层导水裂缝带的发育高度和矿区公路路基高度直接影响煤矿安全生产和路基稳定的问题。针对目前矿区公路路基高度确定尚无系统的确定方法,通过对不同开采方式的采空区上覆岩层导水裂缝带发育高度的分析,结合路基稳定性评价标准,利用材料力学和弹性力学的相关理论,提出了一套矿区公路在不同开采方式下路基高度的确定方法:即采用路基稳定性评价标准,通过力学平衡分析方法计算矿区公路的影响深度,保证采空区上覆岩层导水裂缝带的发育高度与矿区公路的影响深度没有重叠部分,进而间接确定矿区公路的路基高度。When mining coal under highway,the height of the water-conducting crack zone in the goaf＇s overlying strata and the height of roadbed have direct effect on the safety in production and the stability of roadbed in coal mines.But there is not a system method to determine the height of roadbed in mines at present.Based on analysis on the developing highly of water-conducting crack zone in the goaf＇s overlying strata when mining coal under highway with different mining methods and the evaluation criteria of roadbed stability,by use of theories of material mechanics and elastic mechanics,a method for determining the height of roadbed in mining area was put forward.That is to first calculate the influencing depth of driveway in mining area based on the evaluation criteria of roadbed stability and the analysis of mechanical equilibrium,then indirectly determine the height of the roadbed by ensuring there is no overlap between the water-conducting crack zone and the influencing depth of driveway in the goaf＇s overlying strata.

关 键 词：稳定性分析 矿区公路 路基高度 导水裂缝带 采空区 

分 类 号：TD325.2[矿业工程—矿井建设]