呼和浩特市轨道交通 2 号线(一期)工程项目新华广场站墙接缝止水加固施工方案编制单位:浙江鼎业基础工程有限公司编制日期:2017 年 2 月 11 日目 录一、工程概况.........................................................................................................11.1 工程概况....................................................................................................11.2 加固体设计概况.........................................................................................11.3 主要工程量................................................................................................1二、编制依据.........................................................................................................1三、主要地质情况.................................................................................................23.1 主要地质情况.............................................................................................23.2 地下水情况................................................................................................4四、主要考虑因素及应对措施..............................................................................64.1 成孔垂直精度高........................................................................................64.2 旋喷桩直径大............................................................................................64.3 旋喷桩需连续施工.....................................................................................6五、设备选型.........................................................................................................65.1MJS 旋喷桩机特点......................................................................................75.2MJS 全方位超高压旋喷桩施工原理及工艺流程.........................................9六、施工平面布置及施工部署..............................................................................96.1 平面布置图要求...............................................................................