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本文着重介绍在80—81年间我院与江苏太湖煤炭公司合作开展的一项科研的基本成果与初步结论.文中简述了根据观测、试验查明的任墅煤矿水文地质条件,导水裂缝带和冒落带高度及其透水性,复岩破坏特征和矿山压力的显现规律,以及地表移动变形参数;论证了该矿第四系底部砾砂富含水层下安全煤柱留设和高度确定的方法,在我国首次提出了在此种水体下留设“防砂煤柱”开采浅部煤层的方案.本文还强调指出,在与任墅煤矿条件相似的砾砂含水层及某些地面水体下,可以运用本项观测研究成果,尽量留设“防砂煤柱”开采浅部煤层,并应在此类问题上进行深入、广泛的探讨和实践,以便缩小目前我国许多生产和新建矿井留设的安全煤柱高度,大大减少煤炭资源的损失.
This article focuses on the basic results and preliminary conclusions of a research carried out by our institute in collaboration with Jiangsu Taihu Coal Company during 80-81 years.The article summarizes the hydrogeological conditions of the Renshuang Coal Mine identified from the observations and tests, And the appearance of the height and permeability of the caving zone, the characteristics of the rupture of the rock and the pressure of the mine, as well as the deformation parameters of the ground surface. It is demonstrated that the safety pillar is located and the height is determined under the aquifer with gravel sand at the bottom of Quaternary In our country for the first time proposed in this kind of water leaving the “sand control pillars” mining shallow coal seam.The paper also stressed that in conditions similar to the Renshu coal mine gravel aquifer and some surface water body , We can use this observational research result to try to set aside “sand control pillar” to mine shallow coal seams, and we should conduct in-depth and extensive discussions and practices on such issues in order to narrow the number of existing production and new mines in our country Safety pillar height, greatly reducing the loss of coal resources.