桑掌沟煤矿采空区工程地质综合勘察及对公路路基影响的初步评价

THE ENGINEERING GEOLOGICAL COMPREHENSIVE-EXPLORATION AND PRIMARY EVALUATION ABOUT THD VACANT PLACE OF SHONG XHANG GOU COALMINE UNDER THE HIGHWAY

通过对桑掌沟村办煤矿采空区进行的地质采矿调查、地球物理探测和钻探等勘察工作，查明了该矿采空区的地质与工程地质特征、采空区的分布范围及塌陷冒落特征等，依据这些综合勘察结果，认为路基下伏的采空区将会使地表继续变形，影响高速公路路基路面的正常使用和维修。建议在路面基底层下部加铺一层土工织物或用稀少注浆孔内注浆来加固地基，如能充填采空区则可彻底解决地表变形问题。

with the methods of the geological and mining investigation, the geophysical explorationand prospection drilling,the vacant place of shong zhang Gou Coalmine localted in Yang Quan city ofshanxi Provincewas studied in the areas of the geological character,the distributive region and the en-gineering geological character. Form the results of the comprehensive exploration, it is thought thatthe ground overlying the vacant place deform continully,this process affect the mormaluse and mainte-nance of the highway. The author suggests that the vacant place be treated by adding a layer of fabricthings to the bottorn under the base of the highway's foundation or filling the vacant place with thegrouting liquid in the less drills