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煤矿采动区地面井逐级优化设计方法
引用本文:胡千庭,孙海涛.煤矿采动区地面井逐级优化设计方法[J].煤炭学报,2014,39(9):1907-1913.
作者姓名:胡千庭  孙海涛
作者单位:1.中煤科工集团重庆研究院有限公司 瓦斯分院,重庆 400037;; 2.瓦斯灾害监控与应急技术国家重点实验室,重庆 400037
基金项目:国家科技重大专项资助项目(2011ZX05040-004);国家自然科学基金资助项目(51374236);山西省煤层气联合研究基金资助项目(2012012015)
摘    要:为进一步优化煤矿采动区地面井设计方法,对地面井的类型及特点进行了深入分析,将煤矿采动区地面井抽采技术细分为邻近层采动发展区地面井抽采、本煤层采动发展区地面井抽采和采动稳定区地面井抽采3种类型;确定了抽采资源评估、布井位置优选、井型结构优化、高危位置防护、地面安全抽采等5项核心技术,提出了不同类型采动区地面井的逐级优化设计方法。将系统化的技术方法应用在了山西晋煤集团成庄煤矿5310工作面采动区CD-01井的优化设计和抽采工程中,获得了连续抽采、抽采体积分数50%以上的良好抽采效果,证明了逐级优化设计方法及技术的适用性。

关 键 词:采动区  地面井  逐级优化设计  协调开发  
收稿时间:2014-04-24

Graded optimization design method on surface gas drainage borehole
Abstract:In order to further optimize the design method of surface borehole in coal mine excavation influence region,the types and characteristics of the surface borehole were analyzed.A detailed classification of surface gas drainage borehole technology in coal mine excavation influence region was given,such as surface borehole in adjacency coal seam excavation influence region,surface borehole in current coal seam and surface borehole in old goaf region.The graded optimization design method had been developed including resource assessment,surface borehole position selection,surface borehole body structure optimization,protection of well at serious danger position and safety of surface drainage.A case study using this method was conducted in the CD-01 surface borehole at the Chengzhuang Coal Mine 5310 workface.The CD-01 surface borehole achieved a continued drainage in the excavation influence region and the adjacent goaf.The drainage gas concentration exceeded 50%.This test result suggests that this graded optimization design method is applicable.
Keywords:excavation influence region  surface borehole  graded optimization design  coordinated development
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