深部软岩特性对底臌的影响与数值模拟研究  

Research on the effect of floor heave by characteristic of deep soft rock and its numerical simulation

作　　者：伍永平[1] 黄超慧 来兴平[1] 周燕玲 王超[3] 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]平煤集团公司第十煤矿,河南平顶山467012 [3]内蒙古科技大学,内蒙古自治区包头014010

出　　处：《煤炭工程》2006年第10期65-67,共3页Coal Engineering

基　　金：教育部西部矿山开采与灾害控制重点实验室重点项目资助(04JS19)

摘　　要：通过X射线衍射(XRD)、扫描电镜(SEM)和力学特性试验分析了某矿深部软岩的矿物成分、微观结构及力学特性,研究了岩石的水理作用,界定了巷道的底臌类型,并采用有限差分FLAC3D分析不同状态下围岩性质及结构对巷道底臌的影响。研究表明,岩体与水耦合作用及支护方式是导致底臌的主要因素,提出了控制膨胀性底臌关键是防止水和岩体的耦合作用,改善围岩结构,提高岩体强度。Based on performing experiments on X - ray diffraction （XRD）, scan electron microscopy （SEM） and mechanical characters of deep soft rocks in a mine, their mineral composition and their microstructure are analyzed, their muddy and swollen effects on water is researched and type of floor heave is definited. Character and structure of soft rocks influence on floor heave under different conditions is analyzed by finite difference method FLAC^30. The research indicated that it＇ s lead to floor heave by water and rocks coupling and support manner, the key technique of controlling swelled floor heave is advanced, which is prevented water and rocks coupling, improved structure of surrounding rocks and intensity of rocks. It＇ s a certain instructional significance of preventing swelled floor heave in deep soft rock roadway and engineering practice deep soft rock in mine.

关 键 词：深部软岩 底臌 微观结构 数值模拟 

分 类 号：TD327.3[矿业工程—矿井建设] O242[理学—计算数学]