D20便梁在地基塌陷区既有铁路桥整治中的应用

Application of D20 beam in remediation of foundation subsidence zone of railway bridge

以红旗渠铁路桥加固改造工程为例,介绍了在煤矿采空区中使用D20便梁治理沉陷的综合施工技术及监控量测方法,指出该技术成功突破了"三下"采煤对结构物预留煤柱的传统处置定式,为类似工程积累了宝贵经验,具有重大的现实意义。

With the retrofitting engineering of red flag canal railway bridge as an example,it introduces the comprehensive construction technology and monitoring method in coal mining area with D20 beam to control deep trap,and it pointed out this technology succeed to break out the traditional disposal means for pillars reserved,that is ＂san xia＂coal mining,which will become the valuable experience to similiar engineerings and it has a great significance.