摘要
介绍了太原西山煤田古交矿区地面塌陷、地裂缝、滑坡和崩塌等主要地质灾害,及地质灾害引起地表建筑物、耕地、市政设施和水资源破坏等环境效应问题,分析了矿区主要地质灾害的形成机制,认为矿区地面塌陷及地裂缝均为煤炭采空区失稳变形的演化产物,而采矿活动是滑坡和崩塌发生的诱发因素;地下开采引起的地表移动,改变了覆岩的原始应力状态,降低了原有软弱层(面)的力学强度;同时,开采使地表产生裂隙,加剧了地表水的渗透,因而诱发了山体滑坡及崩塌。最后针对古交矿区地质灾害现状和灾害引起的环境效应问题,提出了防治对策及建议。
This article describes main geological hazards of Gujiao diggings, in Xishan coalfield ,Shanxi province, which includes ground subsidence, ground crack, landslides and falling. It also introduces the environmental domino effect destroyed building, cropland, establishment and water resources on the earth＇s surface, which is aroused by the geological hazards. It analyses the forming mechanism of the geological hazards. It brings forward that ground subsidence and ground crack is the result of losing stabilization evolvement in the mined-out area, and the mining activity is a premium factor on landslides and falling. Then the countermeasures and suggestion were brought forward to prevent hazards.
出处
《太原理工大学学报》
CAS
北大核心
2005年第4期466-469,共4页
Journal of Taiyuan University of Technology
关键词
西山煤田
古交矿区
地质灾害
环境效应
分析
Xishan coalfield
Gujiao diggings
geological hazard
environmental domino effect
analysis
