海伦广场土石方钻孔爆破施工方案VIP专享VIP免费

2012届毕业设计（论文）青岛市海伦路人防工程项目土石方钻孔爆破施工方案专业：工程造价助学站点：长沙理工大学考籍号：911010200393姓名：指导教师：张长科2012年03月学生姓名：考籍号：911010200393站点：长沙理工大学指导教师：张长科完成日期：2012.03目录青岛市海伦路人防工程项目土石方钻孔爆破施工方案一、工程概况···················································1（一）场区周边环境··················································1（二）场区地质与水文状况······································1二、设计依据···················································2三、工程要求及设计原则·································3四、总体施工方案·····································3（一）爆破设计········································4（二）爆破安全校核与危害控制····························6（三）爆破作业一般安全规定与防护措施·····················10（四）事故的预防与处理······························13（五）静态爆破······································14五、劳动力组织安排··································15六、机械设备配备·····································16七、工程竣工验收···········································17八、应急预案·······································17（一）应急预案制定的目的·····························17（二）本爆破工程最有可能发生的意外事故·················17（三）事故应急组织机构······························17（四）施工中的具体事故预防措施及应急预案················18一、工程概况该工程位于四方区海伦路与海伦二路交叉口东侧，属深基坑开挖石方爆破工程，该场区已勘探面积约6800平方米，基坑范围内拟建一栋2层框架结构的地下车库，基底标高为26米，开挖深度约12-18米。（一）场区周边环境该工程场区周边环境较复杂，场区东侧与南侧为3栋18层高的框架结构的居民楼房，相距最近点约4米，最远点约8米；场区西侧为海伦路，距路对面南部小花园约8米，距路对面中部幼儿园约12米，距路对面北部多层居民楼约10米；场区北侧距路对面多层居民楼和休闲小花园约10米；场区东北角三叉路口处有一处小市场，过往的车辆，行人较多。（二）场区地质与水文状况1.地质地貌状况根据该场区地质勘察报告获知，该场区地形整体自东北向西南缓倾，场区内存在一条自北向东的冲沟，沟底标高在28.70-32.38米，沟宽约35米，基岩钻孔爆破时，可充分利用这一自然形成的有利条件；基岩主要分布在场区内冲沟两侧和中、底部，为燕山晚期粗颗粒花岗岩，有少量后期侵入的细粒花岗岩，局部构造发育，有糜棱岩夹层及破碎带分布；基岩性质自上而下分为强风化带，中风化带，微风化带。强风化带量少较薄，结构松散，节理裂隙发育，岩体基本质量等级为Ⅴ级；中风化带在场区内广泛分布，结构较致密，节理裂隙较发育，质量等级IV级；微风化带场区内广泛分布，结构致密，岩体较完整坚硬，岩体质量等级为II-III级。2.地下水状况根据现场勘探并结合勘探报告，认为场区内地下水主要是接受大气降水补给和场区周边管道的渗漏积水，地下水主要存在于土层，冲沟和花岗岩、糜棱岩、碎裂岩等基岩裂隙中，并...