支护施工方案.doc

第一章:编制依据···································第2页第二章:工程概况···································第2页第三章:第三章支护方案及水文情况···················第5页第四章:围护桩及支护施工方案·······················第6页第一节、桩基施工方案································第6页第二节、工程质量控制措施····························第7页(一)工程质量目标:·····························第7页(二)质量管理体系:·····························第7页(三)质量检查:································第8页(四)质量保证技术措施:·························第11页(五)工程质量控制措施:······················第11页第三节、素喷支护工程·······························、施工工艺·····································、冠梁、支撑工程····························、设计概况···································、冠梁、支撑梁施工··························、立柱桩、换撑加强带·····················、支撑立柱桩···························、换撑加强带施工······················、支撑梁的拆除施工·······························第23页第五章基坑土方挖、运、施工方案·····················第24页一、基坑土方开挖前的准备工作···················第24页二、基坑土方开挖的顺序和方法···················第25页三、土方开挖的技术措施和质量保证措施···········第26页四、劳动力投入计划与工种配合···················第28页五、人员配备及工期·····························第28页六、土方开挖···································第29页七、施工组织···································第31页八、挖土与监测·································第31页九、应急措施····································第33页十、特殊情况的应急措施··························第34页十一、开挖土方的安全生产和文明施工措施··········第37页第六章挖土数量和进度时间··························第39页第七章土方开挖设备材料表··························第39页第八章补充水沟做法······························第40页第一章编制依据一、温州工程勘察研究院,瑞安市人民医院瑞祥分院行政后勤楼工程,提供的本工程岩土工程勘察报告。二、建筑基坑支护技术规程《YB9258-97》三、地基与基础工程施工及验收规范(GB50202-2002)四、建筑工程施工质量验收统一标准(GB50300-2001)五、瑞安市人民医院瑞祥分院行政后勤楼工程《基坑支护设计方案》六、按规行国家建筑施工规范、规程及市有关部门文件。第二章工程概况1、本工程场地位于瑞安市上山跟村,瑞枫路北侧,瑞祥分院院内,三面环山,四周无已建建筑物及道路。2、本工程现有自然地面标高为-,基础形式为冲击成孔灌注桩。3、设计开挖深度地下室底板顶标高-,底板450mm厚,承台高度1200、1450mm,垫层为150mm素混凝土找平200mm厚片石灌砂,(至底板垫层)。4、场区内工程地质及水文地质情况:根据岩土工程勘察报告,基坑开挖深度影响范围内的土层自上而下依次为:①0素填土、①含粉质粘土角砾、②1泥炭质土、②2淤泥、⑨含粉质粘土角砾、⑩强风化凝灰岩、⑩²中风化凝灰岩、详述分别如下:①0素填土:灰黄、浅灰等杂色,湿、松散状,主要由碎石、块石、粘性土组成,土质不均匀,为新近人工回