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朔南马营堡矿为中煤平朔集团公司拟建的大型矿井,地质资源储量21.6亿t,煤层厚且赋存稳定,但被深厚表土层覆盖,井筒需进行特凿施工。通过对矿井井筒穿见围岩水文地质、工程地质条件及井筒检查孔的冻土物理、力学性质分析,对马营堡矿井筒采用冻结施工法可行性进行了研究,并阐述了井筒在冻结施工中需要注意的事项。
The Shuangnan Ma Ying Bao Mine is a large-scale mine planned to be built by the Pingshuo Group Co., Ltd. with a total reserves of 2.16 billion tons of geological resources. The coal seam is thick and stable, but it is covered by deep topsoil and the wellbore needs to be specially chiselled. By analyzing the physical and mechanical properties of surrounding rock hydrogeology, engineering geological conditions and wellbore inspection boreholes, the author made a study on the feasibility of applying the freezing construction method to the mine shaft at Ma Ying Bao and elaborated the feasibility of the wellbore construction in freezing construction In the need to pay attention to the matter.