综采条件下煤层顶板导水裂缝带高度计算研究  

Study on Height Calculation of Water Conducted Fractured Zone Caused by Fully Mechanized Mining

作　　者：尹尚先[1,2] 徐斌[1,2] 徐慧[1,2] 夏向学[1,2] 

机构地区：[1]华北科技学院河北省矿井灾害防治重点实验室,北京东燕郊101601 [2]华北科技学院安全工程学院,北京东燕郊101601

出　　处：《煤炭科学技术》2013年第9期138-142,共5页Coal Science and Technology

基　　金：国家自然科学基金资助项目(51074075;41072188);"十二五"国家科技支撑计划资助项目(2012BAK04B04);河北省自然科学基金资助项目(E2012508001)

摘　　要：针对"三下"开采规程中有关导水裂缝带的经验公式已不能完全适应综采条件的现状,通过收集国内大量实测统计数据,在不同覆岩条件下,充分考虑开采厚度、开采深度、煤层倾角、工作面斜长的影响,利用功能强大的SAS数学软件对数据进行了分析。通过不同方法结果对比得出,综采开采条件下"三下"开采规程中导水裂缝带高度经验公式与实测相差较大,优选出综采条件下较为精确的计算经验公式,能满足现场工程实践新要求。According to Mining regulation under buildings, water body, railway, Practice has proved that the empirical formula for height of water conducted fractured zone in has been unable to fully meet the requirements for fully mechanized mining.In order to obtain more relia- ble empirical formulas, this paper collected a large number of domestic statistical data measured at different overburden strata conditions, fully considering the effect of mining thickness, mining depth, coal seam dip, work face length, and analysed the data by using the powerful SAS mathematical software.By comparing the results of different methods, this paper summarized that the empirical formula for height of water conducted fractured zone in under buildings, water, railway had large error at the conditions for fully mechanized mining.Choosing the precise empirical formula under the condition of fully mechanized mining had a guiding significance for the engineering practice.

关 键 词：上覆岩层 综采工作面 导水裂缝带 SAS软件 回归分析 

分 类 号：TD325[矿业工程—矿井建设]