不规则边角煤连续开采设计及回采实践
投稿时间:2016-10-18  修订日期:2017-01-06  点此下载全文
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作者单位E-mail
卓庆奉 鄂尔多斯职业学院 资源工程系 myxinye@163.com 
杨 波 中国矿业大学(北京)资源与安全工程学院 2889594567@qq.com 
赵力 中国矿业大学(北京)资源与安全工程学院  
冯泽康 中国矿业大学(北京)资源与安全工程学院  
基金项目:国家自然科学基金资助项目(51234005,51504259);中央高校基本科研业务费专项资金资助项目(2010QZ06)
中文摘要:以显德汪矿1223工作面为工程背景,针对工作面实际情况,分析边角煤地质条件,提出“倒L”形工作面连续开采设计方案并进行回采实践。实践中进行一次工作面对接,三次旋转开采和连续穿越两条老巷,并且通过采取多种有效措施,实现该工作面的安全回采。回采实践表明,“倒L”形工作面连续开采设计方案实现了1223工作面正常回采,减少工作面搬家次数,保证工作面连续推进,节约了成本,提高了经济效益;工作面回采时采取保障措施,及时加强支护并延长超前支护距离,有效控制煤壁片帮和顶板冒顶以及巷道围岩变形;1223工作面的正常回采,扩大了综采的应用范围和适应性,为不规则边角煤资源的回收提供参考。
中文关键词:不规则边角煤  对接技术  旋转开采  顶板管理
 
Continuous mining design and Actual Mining Practice for Irregular Boundary Coal
Abstract:Based on the 1223 working face of Xiandewang Mine, the geological conditions of corner coal are analyzed according to the actual conditions of working face, and the design scheme of “inverted L” face mining is put forward and the mining practice is carried out. In practice, a working surface docking, three rotary mining and continuous crossing through the two lanes are carried out, and multiple effective measures are applied to achieve the safe recovery of the working surface. Mining practice results show, the continuous mining design program of the "inverted L"-shaped work face achieved the normal mining of 1223work face, and reduced the moving frequency of the work face so as to ensure the continuous face mining, saving the costs and improving the economic benefits; protection measures were taken during the face mining to strengthen the support and extend the distance of the fore support in time for effective control of rib fall of coal wall, roof caving and roadway surrounding rock deformation; the normal mining of 1223 work face expanded the scope of application and adaptability of fully mechanized coal and provided a reference for the recycling of the irregular boundary coal resources.
keywords:irregular corner coal  docking technology  rotary mining  roof management
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