采矿与安全工程学报Issue(2)：232-235,4.
浅埋煤层长壁工作面保水开采地表水位变化分析
Analysis of the ground water level change of aquifer-protective mining in longwall coalface for shallow seam
摘要
Abstract
In order to solve the contradiction between the protection of water resources and mining, according to the classified research result of aquifer-protective mining (APM) conditions in shallow coal seam during normal mining process of 32202 longwall coalface of Bulianta mine in Shendong mining area, the mining height is determined to be below 5.3 m and large power of hydraulic support and large power and high reliability equipment are selected to ensure that advance rate of coalface is greater than 15 m/d after demonstrating APM mechanism and feasibility. After coalface mined, the water level ob-servation of ground well shows that the water level of No.10 observation well located in the middle of the coalface stabilizes gradually after about 25 days and relatively increases 0.66 m compared to the ground while the water level of No.18 observation well near the tail entry stabilizes after about a month and relatively reduces 0.87 m compared to the ground. The Quaternary loosened aquifer is less affected by the variation of water level and the main plant species of the surface can grow normally. The indus-trial test shows that aquifer-protective mining technology which features fast forwarding in the long wall coalface can be successfully applied in suitable geological conditions. What’s more, the research can provide reference for ecological environment construction and increases coal recovery rate for the shallow seam of mines with our country.关键词
浅埋煤层/长壁工作面/保水开采/快速推进Key words
shallow seam/longwall coalface/aquifer-protective mining/fast advancing分类
矿业与冶金引用本文复制引用
马立强,孙海,王飞,李嘉明,金志远,张炜..浅埋煤层长壁工作面保水开采地表水位变化分析[J].采矿与安全工程学报,2014,(2):232-235,4.基金项目
国家自然科学基金项目(50904063)；教育部新世纪优秀人才支持计划项目(NCET-12-0957)；江苏省高校“青蓝工程”项目；江苏高校优势学科建设工程项目；江苏省普通高校研究生科研创新计划项目(CXZZ13_0946)；“本科教学工程”国家级大学生创新训练项目(201310290002) （50904063）
