1、真空预压施工方案

河西新城区江东南路道路工程一标段软基处理真空预压处理施工专项方案编制：复核：审核：2013年5月22日目录1、工程概况······································································································22、现场组织机构································································································83、施工方案······································································································83.1施工准备·················································································································································93.2施工人员安排计划·································································································································93.3施工机械安排计划·································································································································93.4泥浆密封墙打设······································································································错误!未定义书签。3.5铺设砂垫层和打设排水板···················································································································103.6主、支滤管定位和安装·······················································································································103.7铺设土工布及密封膜··························································································································113.8开挖、回填密封沟······························································································································113.9抽气管道和真空泵联接······················································································································123.10试抽真空并堆载·································································································································123.11抽真空及真空维持、软基监测·········································································································123.12真空预压卸荷验收····························································································································134、真空预压施工质量控制···················································································135、施工安全保证措施·························································································145.1组织机构···············································································································································145.2安全保证措施·······································································································································145.3施工用电安全措施·······························································································································155.3.1临时用电的施工组织设计·············································································································155.3.2保护接零与接地处理····················································································································165.3.3配电线路········································································································································165.3.4用电管理········································································································································175.3.5施工现场临时用电必须建立安全技术档案················································································161.编制说明1.1编制依据（1）河西新城南部地区江东南路建设工程施工图设计（道路工程分册），2013年3月第1版。（2）河西新城南部地区江东南路建设工程一标段实施性施工组织设计（初稿），2013年5月。（3）企业的装备能力、技术素质、资金储备、劳力资源、物资储备等综合实力。（4）现场实地踏勘成果，我单位积累的成熟技术、科技成果、施工工法及同类工程施工经验。1.2主要标准、规范、规程表1.2主要标准、规范、规程序号标准、规范、规程名称编号1建筑地基基础工程施工质量验收规范GB50202-20092建筑地基处理技术规范JTG79－20123城镇道路工程施工与质量验收规范CJJ1-20084公路土工合成材料试验规程JTGE50-20065公路土工试验规裎JTGE40-20076公路路基施工技术规范JTGF10－20067建筑施工安全检查标准JGJ59-20118施工现场临时用电安全技术规范JGJ46-20059建筑施工场界噪声限值GB12523-201110市政基础设施工程技术文件管理规定建城（2002）221号11其他现行的相关规范、技术标准。1.3编制原则（1）积极响应业主对工程安全、质量、工期、环保、文明施工等方面的规定，严格遵守市政建设工程施工合同条件、合同协议条款及补充协议内容，充分结合现场调查资料。（2）坚持“预防为主，安全第一”的指导思想，结合本工程特点，制定积极有效的安全管理、技术、组织措施，确保人身安全和工程安全。（3）坚持“百年大计，质量第一”的方针，制定完善的工程质量管理制度，建立质量保证组织体系，针对本标段工程特点和质量目标的要求，加强过程控制，从各个环节上保证工程质量目标的实现。（4）根据施工总工期的安排和分阶段节点工期要求，利用网络技术优化工期安排和资源配置，突出重点项目和关键工序，统筹组织，超前计划，合理安排工序衔接。（5）高度重视文明施工和环境保护工作，珍惜、合理利用土地资源。（6）采用先进的施工技术，坚持专业化作业与系统管理相结合，科学安排各项施工程序，通过建立先进的项目信息管理系统，实现施工组织的连续、均衡、紧凑、高效。（7）按照生产组织工厂化、工序控制专业化、现场作业机械化、过程控制信息化的原则组织施工。2.工程概况2.1项目概况江东南路是河西新城南部地区重要的交通主干道，规划新建的地下通道工程将与道路工程同步实施。建成后将大大方便道路沿线两侧居民的出行，提高城市交通运行的安全和效能，完善城市市政基础设施建设，为河西新城打造新城市中心和现代化新南京标志区提供支持和保障。本标段为河西南部地区江东南路建设工程一标段，西起红河路，东至江山大街（K0+361.984~K2+120），为城市主干道，标准段宽80m，道路两侧各有20m绿化保护带，本标段道路总长约1.758km。道路采用主辅道断面，主线双向8车道，辅道双向4车道。图2.1-1项目地理位置图2.2项目简介表2.2-1工程项目简介序号项目内容1工程名称河西南部地区江东南路建设工程一标段2工程地址西起红河路，东至规划支路3建设单位南京市河西新城区国有资产经营控股(集团)有限责任公司南京河西新城区开发建设指挥部4设计单位中冶京诚工程技术有限公司5监理单位江苏建科监理有限公司6施工单位中铁四局集团有限公司7工程范围道路、排水工程（K0+361.984～K2+120）、桥梁工程（天保西河桥）、地下通道工程（1#～5#）及通道内安装工程、综合管廊（K0+040～K2+120）及管廊内设备安装等工程建设，具体以施工图纸及清单为准8计划工期360日历天9质量要求符合国家验收标准2.3设计概况江东南路一标段本工程位于河西南部，拟建道路场地属长江漫滩地貌单元。本工程全线不良地质发育为软土，全线均布，稍有光泽，干强度中等偏低，韧性低，无摇震反应，属中等灵敏度软土。场地地形平坦，场地内河沟、水塘较多。对于桥头及过渡段采用复合地基处理方案，以满足工后沉降的要求。地铁车站、人行通道及综合管廊与道路衔接路段设置过渡段，过渡段长度20～25米，过渡段采用复合地基处理方案，对于软基底