北京地区微顶管工作井支护的选择方法

METHOD FOR SELECTION OF MICRO-PIPE-JACKING WORKING SHAFT SUPPORT IN BEIJING

北京东郊农场保障房配套污水管线施工中,对管径不大于600mm的微小管道顶管工作井的施工方法进行比选,从安全、经济、环境保护、地下水影响、地质条件、施工周期、质量控制难易程度等方面对比钢板桩、倒挂井壁、钢衬板3种施工方法,选择了最适合微顶管的钢衬板施工方法.

During the self-contained sewage pipeline construction of Beijing Dongjiao State Farm indemnificatory housing project,steel plate beam,hanging upside-down shaft wall and steel lining plate construction methods of jacking shaft for micro pipe whose caliber is not larger than 600mm were compared with each other on the aspects of safety,cost,environmental protection,influence on groundwater,geological condition,construction period and quality control difficulty,etc.It was finally determined that steel lining plate construction method is the most suitable for micro pipe jacking.