梧桐庄矿铁路桥涵的采动变形特征分析  

Analysis of Mining Deformation Features of Railway Bridges and Cultverts in Wutongzhuang Coal Mine

作　　者：刘存玉[1,2] 邓伟男[1] 戴华阳[1] 

机构地区：[1]中国矿业大学(北京),北京100083 [2]冀中能源峰峰集团有限公司梧桐庄矿,河北邯郸056500

出　　处：《矿山测量》2009年第6期5-7,65,共4页Mine Surveying

摘　　要：铁路桥涵的保护是铁路下采煤的难点。文中结合梧桐庄矿矿区铁路下采煤设计,分析了采动引起的地表下沉、倾斜、水平移动、水平变形影响桥涵变形的特征,预测了该矿二、三采区开采各桥梁和涵洞的变形;分析了桥涵所受影响情况;提出了防护措施;为矿区铁路下采煤的安全实施提供了依据。It is a difficult problem to protect railway bridge and culvert for the mining under railway.According to the design of mining under railway in Wutongzhuang coal mine of Fengfeng mining area,the paper analyzes the deformation features of bridges and culverts which are influenced by surface subsidence,inclination,horizontal movement and horizontal deformation caused by mining.Further more,the paper predicts the deformation of every bridge and culvert resulted from mining in the second and third working area.Through the analysis of the influence of bridges and culverts,the corresponding protection measures has been provided in the present study,which are used to guide the safe implementation of mining under railway.

关 键 词：铁路下采煤 地表移动 桥涵变形特征 防护措施 

分 类 号：TD823.83[矿业工程—煤矿开采]