应用水泥粉煤灰碎石桩复合地基对储罐地基进行处理  

Application of Cement Fly-ash Gravel Pile Composite Foundation in Treatment of Storage Tank Foundation

作　　者：戚永富 纪海涛[1] QI Yongfu;JI Haitao

机构地区：[1]大庆油田工程建设有限公司

出　　处：《油气田地面工程》2018年第10期96-100,共5页Oil-Gas Field Surface Engineering

摘　　要：保定输入泵站站址位于白洋淀泄洪区,站场须回填素土达到防洪标高,为满足储罐地基承载力和不均匀沉降要求,工程采用水泥粉煤灰碎石桩(简称CFG桩)对2×104m3内浮顶储罐地基进行处理,在工程中对CFG桩复合地基施工及地基检测验收进行了研究,总结了一套CFG桩复合地基施工方法。储罐通过充水试验沉降观测,观测点差异沉降量很小,满足储罐使用要求。CFG桩复合地基具有施工工艺简单、适用面广、效果好等特点,CFG桩复合地基成功应用于锦州—郑州成品油管道保定输入泵站储罐地基处理,保证了工程施工进度和质量,具有良好的经济和社会效益。the Baoding input pump station is located in Baiyangdian flood discharge area,so the station shall fill back the plain soil to reach the flood control level.In order to meet the requirements of storage tank foundation bearing capacity and uneven settlement,cement fly-ash gravel pile(CFG pile)is used to deal with the foundation of inner floating roof tanks with the capacity of 2 x 104 m3.The construction,inspection and acceptance of CFG pile composite foundation are studied in the project,and a set of CFG pile composite foundation construction method is summarized.The settlement of storage tanks is observed by water filling test,and the difference of settlement at observation points is small,which meets the operation requirements of storage tanks.CFG pile composite foundation has the characteristics of simple construction process,wide application area and good effect.CFG pile composite foundation has been successfully applied to the storage tank foundation treatment of the Baoding input pump station in Jinzhou-Zhengzhou product oil pipeline,which ensures the construction progress and quality of the project,and has good economic and social benefits.

关 键 词：CFG桩复合地基 内浮顶储罐 地基处理 施工工艺 

分 类 号：TU753.3[建筑科学—建筑技术科学] TE972[石油与天然气工程—石油机械设备]