乌鲁木齐西山大蒲沟地面塌陷发育特征及治理措施

    Development Characteristics and Control Measures of Xishan Dapugou Ground Collapse in Urumchi

    • 摘要: 由于煤矿开采形成的地面塌陷已成为乌鲁木齐市主要的地质灾害问题之一,从时空分布、影响因素以及发生破坏机理等方面,分析了乌鲁木齐市西山大浦沟垃圾填埋场地面塌陷灾害的发育分布特征及其成因等。研究结果表明:研究区内地面塌陷的分布与煤层分布特征一致,地面塌陷的规模与开采煤层的厚度及开采程度有关,其中B1煤层是本区开采规模最大,形成的采空区规模也最大,同时对公路工程的危害也最大;研究区开采煤层产状陡立、采空区顶板岩性软弱以及人类工程活动影响是诱发地面塌陷主要的因素。基于对乌鲁木齐西山大浦沟地面塌陷发育分布特征及其成因的分析和研究,提出了相应的工程治理措施。

       

      Abstract: Ground collapse caused by coal mining has become one of the main geological disasters in Urumchi. The distribution characteristics and causes of the ground collapse were analyzed from the aspects of temporal and spatial distribution, influencing factors and the occurrence mechanism. The results are as follows: the distribution characteristics of ground collapse are the same as those of coal seams in the study area. The size of the ground collapse is related to the thickness of the coal seam and the mining intensity. Among them, the B1 coal seam is the largest mining area in the study area, forming the largest ground collapse, and the greatest impact on highway engineering. The main factors causing ground collapse in Urumchi are steep coal seam and weak roof lithology in goaf and the influence of human engineering activities. Based on the analysis on distribution characteristics and forming reasons of ground collapse in Urumchi, corresponding control measures were proposed.

       

    /

    返回文章
    返回