天津LNG储罐区特殊地质条件下的地基处理方法  

Foundation Treatment Method of Tianjin LNG Storage Tank Area under Special Geological Conditions

作　　者：郑清鑫 张明星 黄昕[2] 刘骁[2] 陈子亦[2] 

机构地区：[1]中石化天津液化天然气有限责任公司,天津300457 [2]中国石化天然气分公司工程技术部,北京100029

出　　处：《石油工程建设》2013年第3期65-68,27,共4页Petroleum Engineering Construction

摘　　要：天津LNG项目一期罐区地质条件特殊。原地基处理方案"插塑料排水板+密封墙+井点降水+二次回填自重压载"在实际应用中遇到了问题,因此提出新的"长螺旋机械引孔+振动沉管灌注砂桩+密封墙+井点降水+二次回填自重压载"地基处理方案。文章对新方案的施工工艺、技术要求和质量检测要求做了详细的介绍,并分析了其适用性。The storage tank area for first-phase of Tianjin LNG project is located in special geological condition.The original foundation treatment scheme,i.e.plastic drainage sheet + waterproof wall + well point drainage + self-weight load by secondary backfill,encounters difficulties,so that the new foundation treatment scheme,i.e.holing with long spiral machine + stroked vibrating cast-in-place sand pile + waterproof wall + well point drainage + self-weight load by secondary backfill,is proposed.The construction procedure,technical and quality inspection requirements of the new foundation scheme are illustrated in this paper,and its applicability as well.

关 键 词：LNG储罐区 特殊地质 地基处理 方案分析 适用性 

分 类 号：TE88[石油与天然气工程—油气储运工程]