论文部分内容阅读
为正确分析新安煤田小浪底水库淹没区下煤炭资源安全开采的可行性,通过收集淹没区内二1煤层厚度、埋深、顶板岩性和库区水位、淹没范围、构造发育情况等资料,系统研究了淹没区范围内的地质、水文地质及工程地质条件,对水下开采的安全性进行了评价,分析认为,淹没区下开采时不但能留设足够的防隔水岩柱,而且在上覆岩层岩性组合、开采煤层埋深、构造发育情况、间歇性淹没区等方面存在利于水下煤炭开采的条件。
In order to analyze the feasibility of safe mining of coal resources in Xiaolangdi Reservoir submerged area of Xin’an coalfield, the author systematically studied the coal mining conditions of the Xiaolangdi Reservoir in Xin’an coalfield by collecting the data of coal seam thickness, burial depth, roof lithology and reservoir water level, submerged area and tectonic development in submerged area. The geological, hydrogeological and engineering geological conditions within the submerged area were evaluated, and the safety of underwater mining was evaluated. The analysis shows that not only enough anti-drifting rock columns can be set aside when submerged area is mined, Rock formation lithology, the depth of the coal seam, the tectonic development and the intermittent inundation area are favorable for underwater coal mining.