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西部特厚煤层软岩底板巷道变形破坏特征研究
Deformation and Failure Characteristics of Roadway in Extra-thick Coal Seam with Soft Rock Floor in Westward
【摘要】 以陕西榆林金鸡滩煤矿为工程背景,结合现场原位实测数据,采用FLAC3D有限差分计算软件对不同厚度软弱岩层下巷道的位移场、塑性区及最大主应力分布特征进行了研究。
【Abstract】 Takes Jinjitan coal mine in Yulin city, Shanxi province as the engineering background.Combining with measured data in situ, numerical software of FLAC3 Dwas used to simulate the deformation,plastic zone and the maximum principal stress of roadway are influenced by the different thickness of the soft rock.
【关键词】 特厚煤层;
软岩底板;
FLAC3D数值模拟;
最大主应力;
【Key words】 extra-thick coal seam; floor of soft rock; FLAC3D numerical simulation; maximum principal stress;
【Key words】 extra-thick coal seam; floor of soft rock; FLAC3D numerical simulation; maximum principal stress;
【基金】 国家自然科学基金项目(51374198;51404255)
- 【文献出处】 煤炭技术 ,Coal Technology , 编辑部邮箱 ,2016年03期
- 【分类号】TD322
- 【被引频次】8
- 【下载频次】97