Mine Safety Technology Branch, China Coal Research Institute State Key Laboratory of Coal Mining and Clean
Uilization (China Coal Research Institute) Shenhua Shengdong Coal Group Co., Ltd.

基于调查与踏勘、综合分析、危险性分级与评估、现场监测与试验等方法,分析了神东矿区房采采空区的隐患类型,提出了神东矿区房采采空区危险性分级方法,开发了神东矿区房采采空区安全评估专家系统并进行了隐患评估,通过爆破试验对房采采空区进行注浆治理试验。结果表明,神东矿区已有房采采空区面积约29.05 km2,包含房采空区对应地表存在重要建筑物、通信塔或高压线塔、公路、井下采掘安全等4种隐患类型,并将神东房采采空区危险等级划分为5级;开发出神东矿区房采采空区安全专家评估系统,评估结果符合现场实际。经采取地面注浆治理试验和爆破治理试验,为房采采空区隐患评估、隐患治理及建筑物保护利用提供了可靠安全保证。

Based on a investigation and reconnaissance, comprehensive analysis, danger grading and evaluation, site monitoring and measurement as well as test and other methods, the paper analyzed hidden danger type of the goafs in a room and pillar mining and provided a danger grading method of the goafs in the room and pillar mining method of Shendong Mining Area. A safety evaluation experts system of the goafs in the room and pillar mining of Shendong Mining Area was developed a nd a hidden danger was evaluated. With a blasting experiment, a grouting experiment was conducted in the goafs of the room and pillar mining. The results showed that the goafs of the room and pillar mining had an area of 29.05 km2 in Shendong Mining Area and the goafs of the pillar mining had 4 different hidden dangers, including t he important buildings, communication towers and high voltage power line towers, important highway on the surface and the underground mining and driving safety. The danger grades of the goafs in the room and pillar mining in Shendong Mining Area were divided into five grades. A safety experts evaluation system was developed for t he goafs in the room and pillar mining of Shendong Mining Area and the evaluation results could meet the site actual. The surface grouting and blasting treatment exper iment measures could provide reliable safety insurances to danger evaluation of the goafs in room and pillar mining, hidden danger control and the buildings protection and uillization.

国家重点基础研究发展计划(973计划)资助项目(2012CB724208)；