麻城至武穴高速公路第一合同段桥梁施工安全风险评估报告中交一公局项目经理部二〇一三年七月麻城至武穴高速公路第一合同段桥梁施工安全风险评估报告（修订版）编制单位：中交一公局项目经理部评估小组负责人：王宪国日期：2013年8月目录前言..............................................................1第一章概述........................................................21.1评估目的.......................................................21.2评估原则......................................................21.3评估内容......................................................21.4评估对象.......................................................31.5评估依据.......................................................31.5.1法律法规及政府文件........................................31.5.2技术标准及规范............................................41.5.3建设项目相关文件..........................................51.6评估准备.......................................................61.7评估小组分工与职责............................................8第二章工程概况.....................................................92.1项目背景......................................................92.2项目自然条件.................................................102.2.1气象......................................................102.2.2水文条件..................................................102.2.3地质条件..................................................102.3桥梁工程简介.................................................10第三章评估过程和评估方法..........................................123.1风险评估过程..................................................123.2风险评估方法..................................................133.2.1桥梁施工总体风险评估方法.................................133.2.2桥梁施工专项风险评估方法.................................153.2.3风险估测方法选择..........................................183.2.4重大风险源的风险估测......................................19第四章总体风险评估...............................................234.1桥梁施工总体风险评估.........................................234.1.1细石岭大桥大桥总体施工风险评估............................234.1.2木子店大桥总体施工风险评估................................244.1.3BK0+500木子店互通区匝道桥总体施工风险评估................254.1.4CK0+756.567木子店互通匝道桥总体施工风险评估..............264.1.5NK12+203.5木子店互通匝道桥总体施工风险评估...............274.1.6东巴河大桥总体施工风险评估................................284.1.7上巴河大桥总体施工风险评估................................294.1.8袁家畈大桥总体施工风险评估................................304.1.9下巴河特大桥总体施工风险评估..............................314.1.10桥梁施工总体风险评估等级.................................33第五章桥梁施工专项风险评估.......................................345.1风险源辨识...................................................345.2风险分析.....................................................365.3风险估测......................................................435.3.1风险估测方法选择.........................................435.3.2量化分值标准.............................................435.4重大风险源风险估测............................................535.4.1人工挖孔桩作业风险估测....................................535.4.2基坑（系梁）施工风险估测..................................555.4.3高墩（盖梁）施工风险估...
