浅埋煤层高强度开采区地裂缝发育特征——以陕西榆神府矿区为例

通过遥感解译结合实地调查，对榆神府矿区采煤损害进行了分析研究，结果表明：自1993年以来，榆神府矿区塌陷区面积共94.47 km2，地面沉陷区95处，地裂缝1 802条（组）；地裂缝在地表的展布具有明显的分带性，黄土沟壑区高强度开采区，地裂缝密集，地表破坏严重；风积沙地区，高强度采煤地裂缝密集，部分地裂缝自然弥合，地表表象不明显；开采强度对本区地裂缝的发育起决定性作用。本区地裂缝主要分布在石圪台-大柳塔、大昌汗-老高川、榆家梁、锦界、柠条塔煤矿北翼以及大砭窑、麻黄梁一带，均为煤炭高强度开采区。

Characteristics of ground fissure development in high intensity mining area of shallow seam in Yushenfu coal field

The paper analyzed the damage situation caused by coal mining at Yushenfu coal mining area by field survey and remote sensing interpretation.The study results show:1 802(group) fissures and 95 ground subsidence have been caused by coal mining since 1993 within a total area 94.47 km2；The distribution of ground fissures on the surface has significant zonation.Ground fissures are intensive，and seriously damage the topography at the loess donga region，however，due to their partial closure，the surface appearance is not obvious at the aeolian sand region；Mining intensity plays a decisive role in the development of fissures.Ground fissures mainly occur in the North of Shigetai-Daliuta，Dachanghan-Laogaochuan，Yujialiang，Jinjie，Ningtiaota and the area of Dabianyao-Mhuangliang where underwent high intensive coal mining activities.