挖孔桩安全专项方案分析.doc

 PAGE \* MERGEFORMAT 4  PAGE \* MERGEFORMAT 1 挖孔桩安全专项方案 编制： 复核： 审核： 二〇一六年五月  目 录 第一章 工程概况、编制目的及依据····················································1 一、工程概况···································································1 二、目的·······································································1 三、编制依据··································································2 第二章 安全施工技术方案·····························································3 一、场地平整····································································3 二、井圈的实施··································································3 提升设备及附属设施·························································3 护壁········································································4 挖孔及爆破·································································4 排水、通风和照明···························································7 渣土运输方式·······························································7 钢筋制作和安装····························································8 砼的浇筑·································································8 第三章 危险源辨识及预防控制措施····················································11 第四章 应急措施··································································15 一、应急救援领导小组组织机构····················································15 二、七种危险事故的应急措施·····················································16  PAGE \* MERGEFORMAT 18  PAGE \* MERGEFORMAT 1 第一章 工程概况、编制目的及依据 一、工程概况 本标段共计桩基210根，分别东庄大桥68根，东庄中桥30根，南沟中桥24根，窦王墓大桥48根，白土坡大桥38根。 桩基工程数量 类型桥梁名称桩径（m）完成桩基剩余桩基圆桩24226圆桩1.4/1.5219圆桩1.4/1.5240圆桩1.53810圆桩1.4/1.5362涉及人工挖孔的桩基为： 东庄大桥右幅：3-0#、3-1#（20米）、12-0#（17米）、左幅：3-1#（19米）；东庄中桥右幅2-3#（20米）；窦王墓大桥右幅4-1#（16米）。 东庄大桥右幅：3-0#、3-1#（20米）、12-0#（17米）、左幅：3-1#（19米）；东庄中桥右幅2-3#（20米）；窦王墓大桥右幅4-1#（16米）。 东庄大桥、窦王墓大桥位于井陉县东东庄村西南处，地形起伏不平，地貌单元主要为侵蚀构造山地区，桥梁走向为西北-东南向