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通过皖北矿区河流下采煤研究和实践,提出了河堤沉陷预测、堤顶高程、堤防抗滑稳定的计算方法以及从单一煤层、单一工作面到多煤层、多工作面开采堤体、堤体加固、堤坝裂缝处理、堤坝迎水坡防浪等技术措施。同时总结出了河流下采煤减少地表变形和河堤加固相应措施,为今后本矿区获类似条件矿区河流下采煤提供借鉴。
Based on the research and practice of coal mining under the river in Wanbei mining area, this paper puts forward the calculation methods of river bank subsidence prediction, embankment elevation and embankment anti-sliding stability, as well as the calculation methods from single coal seam, single face to multiple coal seam, Body reinforcement, dike crack treatment, embankment Ying slope against water and other technical measures. At the same time, the corresponding measures of reducing the surface deformation and dike reinforcement under the river mining are summed up, which can provide reference for coal mining under the similar conditions in the mining area of the mine in the future.