浅埋煤层开采地裂缝发育特征研究——以陕西榆家梁煤矿为例

Study on the development characteristics of ground fissures in shallow coal seam mining——Taking Yujialiang coal mine as an example

为了研究西部矿区浅埋煤层开采造成的地裂缝发育特征,以陕西榆家梁煤矿为研究基地,对榆家梁煤矿43303-2工作面采动引起的地裂缝进行持续动态监测,对其采动地裂缝进行监测,分析了地裂缝的形态、区域分布情况以及地裂缝形成的影响因素,初步探析了采动地裂缝形成机理及发育规律。结果表明,地裂缝的发育是一个动态过程,随着工作面推进一段距离后,逐渐在地表产生地裂缝;采动过程中的地裂缝的形成主要受深厚比、表土层性质、开采速度以及地形地貌等因素影响。研究结果对于地表建筑物保护和土地整治具有指导意义。

In order to study the development characteristics of ground fissures in shallow seam mining in western mining area,taking No.43303-2 working face of Yujialiang Coal Mine as an example,through continuous monitoring of ground fissures caused by mining,the shape,regional distribution and influencing factors of ground fissures were analyzed,and the formation mechanism and development law of ground fissures were summarized. The results show that the development of ground fissures is a dynamic process,and the formation of ground fissures is mainly affected by the buried depth,mining height,surface soil properties,mining speed and topography. The study has guiding significance for the protection of surface buildings and land remediation.