珠江三角洲城际快速轨道交通广州至佛山段二期工程二标段【东平站】施工监测方案目录一、编制依据....................................................................................................................................................................1二、工程概况....................................................................................................................................................................12.1东平站描述..............................................................................................................................................................12.2周边环境描述..........................................................................................................................................................12.3围护及支撑体系概况..............................................................................................................................................32.4东平站工程地质、水文地质条件..........................................................................................................................42.5监测重点..................................................................................................................................................................5三、监测目的和必要性及编制依据................................................................................................................................63.1监测目的和必要性..................................................................................................................................................63.2编制原则..................................................................................................................................................................6四、东平站施工监测项目及内容....................................................................................................................................74.1监测项目..................................................................................................................................................................74.2监测内容..................................................................................................................................................................74.3、监测实施时间.......................................................................................................................................................8五、监测点布置与埋设要求............................................................................................................................................85.1围护墙水平位移监测..............................................................................................................................................95.2围护墙顶部沉降及水平位移监测........................................................................................................................105.3支撑内力监测........................................................................................................................................................105.4坑外地下水位监测................................................................................................................................................125.5坑外地表沉降监测点布设.................................................