CFG法复合桩专项方案设计

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1、标准文档HJG931基地武警营房工程CFG桩复合地基专项施工方案四川三鑫建筑工程有限公司二O一四年五月实用文案标准文档目录一、编制依据·································3二、工程概况·································31、工程情况······························32、工程气候······························33、地质条件······························44、CFG桩复合地基基本特点················4三、施工进度计划·········

2、····················5四、施工总体部署·····························51、施工组织机构··························52、人员组织机构··························63、劳务人员安排计划······················74、施工机械设备进场计划··················7实用文案标准文档5、材料供应······························7五、施工方案·································71、施工准备················

3、··············72、排水措施······························83、CFG桩施工工艺························94、CFG桩施工质量控制措施················115、施工中需要注意的问题··················126、褥垫层施工····························13六、关键点控制·······························15七、质量保证措施·····························16八、复合地基检测·························

4、····17九、安全文明施工保证措施·····················18实用文案标准文档十、雨季施工·································181、施工准备······························182、雨季施工技术措施······················203、雨季施工管理措施······················214、雨季施工注意事项······················225、抗洪抢险······························226、人员组织机构························

5、··23CFG桩复合地基施工方案一编制依据1、HJG931基地武警营房工程CFG桩复合地基设计施工图；2、《931基地武警营房岩土工程勘察报告》；3、《建筑地基处理技术规范》（JGJ79-2012、J220-2012）;4、《建筑桩基技术规范》（JGJ94-2008）;5、《建筑地基基础工程施工质量验收规范》（GB50202-2012）;6、《四川省建筑地基基础检测技术规程》（DBJ51/T014-2013）二、工程概况1、工程信息实用文案标准文档本工程位于三所老区，框架结构，建筑面积1900㎡，层高3层，10.5m高。2、工程气候广元市属于亚热带温润季风季候，具有冬寒夏热，四季分明，雨热同季

6、的特点。相对湿度79%，多年平均降水量为900.40mm，降水南郡分配不均，其中六月至九月降水量占全年的75%左右。场地地下水为第四系上层滞水，水量较小，水位1.5-2.5m。该场地地表水及地下水对混凝土结构具有微腐蚀性，对钢结构具弱腐蚀性。场地地势相对较为平坦，孔口高程为492.15-492.80m，地势相对平坦，由于人工耕种呈阶坎状，坎高约0.3-0.8m。南侧约15m有一小河，河宽3-4m左右，水量较少，水深约30-60cm。基地为粉质粘土层。3、地质条件根据《HJG-2项目9321所区武警营房岩土工程勘察》（四川九0九工程勘察设计院）（2013年3月）。场地岩土主要由第四系覆盖层（Q4

7、）、白垩系统剑门关组（K1j）组成，先将各地层分述如下：粉质粘土（Q1d1+e1）:黄褐、灰褐色，可塑，偶见软塑，无摇振反应，稍有光泽，干强度高，韧性高。强风化砂质泥岩（K1j）：红褐、灰褐色，主要矿物成分以粘土矿物为主，泥质结构，中厚层构造，泥质胶结，岩石风化裂隙很发育。中风化砂岩（K1j）：灰黄色，主要矿物成分为石英、长石、云母，中细粒结构，中厚层构造，岩质硬，岩质较软。实用文案标准文档强风化