梅子洲过江通道连接线降水方案20XX年.6XX市青奥轴线地下工程降水施工方案XX市青奥轴线地下工程xxxx基坑降水施工方案xxxx二○一二年七月四日1XX市青奥轴线地下工程降水施工方案目录1工程概况............................................................................................................................................32工程地质与水文地质条件................................................................................................................32.1工程地质条件...............................................................................................................................32.2水文地质条件...............................................................................................................................33设计依据与降水目的........................................................................................................................43.1设计依据.......................................................................................................................................43.2降水目的.......................................................................................................................................44降水设计方案.....................................................第1页共22页...............................................................................44.1工程地下水风险分析与对策.......................................................................................................44.2降水设计思路...............................................................................................................................54.3疏干设计.......................................................................................................................................54.4降压设计.......................................................................................................................................64.5降水设计工作量...........................................................................................................................75抽水试验设计....................................................................................................................................85.1试验目的及任务...........................................................................................................................85.2抽水试验工作量...........................................................................................................................85.3试验方法设计...............................................................................................................................95.4抽水试验流程.............................................................................................................................105.5结果统计与分析.....................................................第2页共22页....................................................................106管井构造与设计要求......................................................................................................................116.1管井构造.....................................................................................................................................116.2设计要求......................................................................................................................................
