The Study Of Reinforcement Of Coal Floor Under The High Temperature And High Pressure Condition

According to incomplete statistics, hundreds of tons of coal have been threatened by water, even the thin layer of limestone water, water burst, and in some cases as a result of tectonic and karst formation of horizontal and vertical channels or docking strong aquifer resulting from contact with water also occurs more disastrous accidents. Compared with foreign countries, although the inrush of water in the study of factors into many, and made a lot of results, but because of the complexity of natural conditions and the existing level of technology development has not reached the root of the problem.Wutongzhang Coal Mine is a rather exceptional, ground water temperature is relatively high, the annual production capacity and large, is a modern new mines, with special hydrogeological conditions.This full study of the Indus in the Coal Mine and the mine field area where the mine field structure and geological and hydro-geological and hydrogeological Ida on the basis of the Indus Coal Mine 182104 Faces for the study, focusing on the identification of various channels and weak surface,With more advanced Multi-electrode resistivity method, TEM , Audio-frequency Electric Clairvoyance methods to identify hydrogeological conditions,the laboratory simulation of high temperature grouting reinforcement ratio and the floor technology, combined with on-site implementation be detected after the comparison and test-mining research, so as to achieve the purpose of solving the problem. This not only laid the foundation for 182104 mining face, but for the entire mine, and the whole deep coal No. 2 (large coal) mining play a catalytic role.