采空塌陷区管道成灾机理分析及工程防治措施

由地下采空造成地面突然塌陷而构成对管道工程的危害是最严重的管道地质灾害之一。通过对地下采空产生的地表移动和变形对管道的影响和损害的讨论,分析了采空塌陷对管道的危害特征。在分析矿区地表移动与覆岩的破坏规律和采场采动影响下覆岩破坏规律的基础上,研究了采空塌陷区管道成灾机理及影响因素。然后提出了采空区输气管道安全保护措施,对采空塌陷区的油气管道完整性管理工作具有指导意义。

Analysis of disaster mechanism and countermeasures for endangered pipeline security in mining subsidence areas

Mining-subsidence is one of the important geological disasters endangering the security of pipeline. Through the discussion of endangered pipeline security for surface movement and distortion by mining,the harmful characteristics of pipeline by mining-subsidence are analyzed. On the basis of the analysis of surface movement and roof distortion in the mine region,the disaster mechanism and its influencing factors for endangered pipeline security are discussed. The associated treatment measures are put forwar...