海棠湾大酒店基坑开挖支护安全专项施工方案[1]VIP免费

目录一、编制依据........................................................1二、工程概况........................................................1三、工程地质及水文地质..............................................53.1工程地质.....................................................53.2水文地质.....................................................9四、场地周边既有建（构）筑物及管线情况..............................9五、总体方案........................................................95.1总体施工顺序.................................................95.2基坑开挖支护总体方案........................................105.3施工重难点分析..............................................115.3.1施工重点..............................................115.3.2施工难点及对策........................................12六、施工部署及安排.................................................126.1施工准备....................................................126.2工期安排....................................................136.3资源配置....................................................146.3.1机械配置..............................................146.3.2劳动力配置............................................146.3.3主要材料计划..........................................14七、主要施工方法...................................................157.1施工降水....................................................157.2地表清理及防排水设施施作....................................157.3基坑开挖....................................................167.3.1土方开挖的一般原则....................................167.3.2土方开挖..............................................167.3.3质量标准及注意事项....................................167.4型钢桩板式支护结构施工......................................177.4.1结构组成..............................................177.4.2型钢桩施工............................................187.4.3钢支撑、钢围檩架设安装................................207.4.4质量标准及注意事项....................................217.5土钉墙支护..................................................227.5.1施工工艺..............................................237.5.2施工方法..............................................247.5.3质量标准和检测........................................257.6钎探验槽及接地网施工........................................257.6.1钎探材料及主要机具....................................257.6.2钎探作业条件..........................................257.6.3钎探操作工艺..........................................257.6.4钎探注意事项..........................................267.6.5接地网施工............................................267.7基坑回填....................................................27八、基坑监控量测...................................................278.1监测目的....................................................278.2监测项目及测点布设..........................................278.3主要监测项目实施方法........................................298.3.1沉降监测..............................................298.3.2坡顶水平位移监测......................................308.4变形控制标准、预警机制和监测安全判定标准....................308.5信息化施工管理程序..........................................308.5.1监测组织机构..........................................308.5.2监测数量分析..........................................318.5.3信息...