河南省新密李岗井田二_1煤层充水因素分析

Analysis on water intnusion factors of Ⅱ_1 coal bed in Ligang coal field of Xinmi City,Henan Province

新密是河南省的主要煤炭基地之一。为本省工业的发展和人民生活水平的改善提供了能源保证,同时也促进了地方经济的繁荣。近年来随着开采煤层的加深,矿井突水事故时有发生,造成了一定的经济损失,引起了当地政府和有关部门的高度重视。为此,论文通过对李岗井田地层、地质构造及水文地质特征的研究以及对井田充水因素的全面分析,指出了该矿水文地质勘查类型为第三类、第二亚类、第二型。论证了二1煤层的主要充水因素为该煤层底板的石炭系和奥陶系灰岩、白云质灰岩岩溶裂隙—承压水。最后,作者结合井田实际情况,提出了防治矿井充水的一些具体措施,从而为安全、合理、高效采矿提供了科学依据。

Xinmi is a major coal base. Taiwanes industry for the development and the improvement of people, s living standards to ensure the provision of energy, also stimulates the local enconmy. But in recent years, along with the depth of mining, mine accidents have accarred from time to time, a certain amount of econmic occurred. Government and relevant departmtnts attatch great importance to it, therefore, the article researched Li Gang well paddies level, geologic structure and hydrology geological feature. Together with the analysis of the we pointed out the hydrology geology investigation type is the third kind of second subgroup third, we expounded in detail each factor of the filled with water with the two coal beds, proved the mainly factor of the filled with water about the two, coal bed are this coal bed ledger wall Carboniferous and Ordovician calcareous rock, clolonite in powder karst crevasse-confined water. In the end, the author unifies the actual situation of the well field, proposed some specific measures of the preventing and controlling mine pit is filled with water. Thus provided a scientific basis for security, reasonable, highly effective mining.