白砺滩露天矿二采区烧变岩边坡稳定性研究  

Slope Stability Study on Burnt Rock of No.2 Mining Area in Bailitan Open Pit Coal Mine

作　　者：吴杨 梁冰 夏冬 贾淯斐 郝硕 WU Yang;LIANG Bing;XIA Dong;JIA Yufei;HAO Shuo(College of Mining Engineering, North China University of Science & Technology, Tangs han 063210, China;Hebei Province Key Laboratory of Mining Development and Scifety Technology, North China University of Science & Technology, Tangs han 063210, China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063210 [2]华北理工大学河北省矿业开发与安全技术重点实验室,河北唐山063210

出　　处：《煤矿安全》2019年第2期237-240,共4页Safety in Coal Mines

基　　金：河北省大学生创新训练资助项目(国家级X2017002;X2017034);河北省自然科学基金资助项目(2018209218)

摘　　要：以白砺滩露天煤矿二采区烧变岩边坡为研究对象,选取典型剖面进行稳定性分析,根据分析结果对最终边坡角进行优化。结果表明:天然状态下,1剖面、2剖面保持稳定的边坡角分别为34°和36°;疏干排水状态下,3剖面保持稳定的边坡角为32°;以安全系数1.15为安全标准,在疏干排水工程配套到位的情况下,3剖面的边坡角可提高到33°～34°,1剖面可提高到36°。This paper took the burnt rock in No.2 mining area of Bailitan Open-pit Coal Mine as the research object, selected the typical section for stability analysis and optimized the final slope angle based on the analysis results. The results showed that the slope angles of section 1 and section 2 remain stable at 34° and 36° respectively in natural state, and in underground dredging and draining condition, the slope angle of section 3 remains stable at 32°;take the safety factor of 1.15 as the safety standard, in the case of underground dredging and draining works in place, the slope angle of section 3 could be increased to 33° to 34°, and section 1 could be increased to 36°.

关 键 词：露天煤矿 烧变岩边坡 边坡稳定性分析 最终边坡角 优化设计 

分 类 号：TD824.7[矿业工程—煤矿开采]