采动区煤矸石浸水路堤变形稳定性研究  

Study on Deformation Stability of Soaking Gangue Embankment in Mining Subsidence Areas

作　　者：孙舒[1] 帅映勇[1] 

机构地区：[1]泰州职业技术学院,江苏泰州225300

出　　处：《金华职业技术学院学报》2017年第3期50-53,共4页Journal of Jinhua Polytechnic

基　　金：2016泰州职业技术学院院级科研项目(TZYKY-16-16);2015年泰州职业技术学院硕博基金(TZYBS-15-3);2016年江苏省高等学校大学生创新创业训练计划项目(201612106006Y)

摘　　要：煤层开采会引起地表的大幅下沉,给地面的建筑物带来巨大的破坏。通过对煤矸石的物理力学性能进行室内试验,证明煤矸石的物理性质、承载比(CBR)、力学性能及水稳定性均能够满足浸水路堤正常使用要求;用ABAQUS数值软件对安徽淮南某矿区公路在采动及浸水双重影响下的工作状态进行模拟,分析煤层开采对路堤顶面变形及路堤边坡的影响,模拟试验表明:工作面与路堤的距离是影响公路路堤稳定和变形的主要因素,因此,在煤层开采的不同阶段应对矿区公路路堤进行加固及处理。Coal-seam mining can cause a substantial subsidence of the land surface and bring great damage to buildings and structures on the ground. Laboratory tests are firstly made on the physical- mechanical properties of the coal gangue and it shows that the physical properties, CBR （California bearing ratio） and the mechanical properties of coal gangue can satisfy the normal usage requirements of the soaking gangue embankment. The working state of a road at a mining area in Huainan city, Anhui province is then simulated with the dual influence of both mining and soaking, in which the deformation of top surface of the embankment and the effect on embankment slope are analyzed by using numerical simulation software ABAQUS. The simulation result suggests that the distance between the coal mining face and embankment is the major factor affecting stabilization and deformation of the road embankment, and reinforcement and treatment measures for the road embankment at a mining area are also proposed according to different mining stages in this paper.

关 键 词：煤层开采 路堤边坡 水平变形 沉降 

分 类 号：TU433[建筑科学—岩土工程]