目录1编制依据....................................................................................................................12工程概况....................................................................................................................12.1工程概述.........................................................................................................12.2设计概况.........................................................................................................22.3地质概况.........................................................................................................22.3.1工程地质.............................................................................................22.3.2水文地质.............................................................................................42.4周边环境情况.................................................................................................62.5主要工程量.....................................................................................................63工程重难点分析........................................................................................................73.1工程重点.........................................................................................................73.1.1周边建筑物密集，拆迁量大是施工重难点.....................................73.1.2郑和站软土深基坑稳定和安全控制是施工的重难点.....................73.2工程难点及采取的措施.................................................................................73.2.1周边建筑物密集，拆迁量大主要应对措施.....................................73.2.2郑和站软土深基坑稳定和安全控制主要应对措施.........................84施工进度计划............................................................................................................85主要施工方案............................................................................................................95.1三轴搅拌桩槽壁加固方案.............................................................................95.1.1三轴搅拌桩施工工艺.........................................................................95.1.2三轴搅拌桩施工主要技术参数.......................................................115.1.3三轴搅拌桩的质量检验要求...........................................................115.1.4三轴搅拌桩常见质量问题的分析与处理.......................................125.2地连墙施工方案...........................................................................................125.2.1导墙施工...........................................................................................135.2.2泥浆制备与调整...............................................................................165.2.3成槽施工...........................................................................................215.2.4刷壁...................................................................................................225.2.5清底换浆...........................................................................................245.2.6钢筋笼制作和吊装...........................................................................255.2.7混凝土灌注.......................................................................................275.2.8反力箱顶拔...................................................................................
