黄土隧道安全风险评估报告
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目录
一、编制依据..........................................................................................................................................3二、工程概况..........................................................................................................................................3三、评估对象及目标..............................................................................................................................3四、确定风险等级标准..........................................................................................................................4五、专项风险评估程序..........................................................................................................................5
5.1隧道一般风险源识辨...............................................................................................................55.2隧道一般风险源分析...............................................................................................................5
5.2.1触电伤害........................................................................................................................55.2.2机械伤害........................................................................................................................55.2.3火灾伤害........................................................................................................................55.3风险估测...................................................................................................................................55.4风险控制...................................................................................................................................5
5.4.1隧道重大危险源的识别................................................................................................55.4.2对重大危险源的评价....................................................................................................6
六、重大危险因素及应对措施..............................................................................................................6
6.1、防坍塌技术和坍塌处理........................................................................................................6
6.1.1易发生坍塌的位臵........................................................................................................66.1.2防坍技术措施................................................................................................................66.1.3坍塌分类及紧急处理....................................................................................................76.1.4塌方处理........................................................................................................................8
七、隧道各工序施工安全措施............................................................................................................9
7.1一般规定.................................................................................................................................107.2、隧道洞口安全措施..............................................................................................................10
7.2.１洞口工程施工.............................................................................................................107.2.2隧道浅埋段施工..........................................................................................................107.2.3、隧道突涌水防治.......................................................................................................117.3、洞内开挖作业安全措施......................................................................................................14
7.3.1、超前地质预报...........................................................................................................147.3.2、装碴与运输...............................................................................................................147.3.3、隧道支护安全措施...................................................................................................157.3.4、二次衬砌...................................................................................................................177.3.5、风水电供应...............................................................................................................187.3.6、雨季洞内施工...........................................................................................................207.3.7、洞内施工防火...........................................................................................................207.4、通过不良地质段的安全措施..............................................................................................20八、隧道施工突发事件监控..............................................................................................................21
8.1、值班制度..............................................................................................................................218.2、险情监控..............................................................................................................................21
8.2.1、洞内外观察...............................................................................................................228.2.2、位移监测 