连云港抛石围堤下软基固结度计算  

Calculation of consolidation degree of soft foundation under riprap border dike in Lianyungang

作　　者：苏俊剑 龚永康 

机构地区：[1]同济大学,上海200092 [2]中交上海航道勘察设计研究院有限公司,上海200120

出　　处：《水运工程》2015年第12期144-147,共4页Port & Waterway Engineering

摘　　要：连云港徐圩港区某抛石围堤工程项目,需进行围堤下软基沉降观测及固结度计算。砂被和排水板施工后围堤尚未出水,抛石后围堤在最低潮位出水时安放沉降板所得的累计沉降量有缺失,所得固结度偏小,因此提出采用工前工后钻孔探摸法确定软基实际沉降量可得到与工程实际相符合的固结度。同时,采用钢筋笼骨架+袋装碎石的围护方法在抛石施工前安放沉降板,可得到相对正确的累计沉降量和固结度,值得应用和推广。Settlement observation and calculation of degree of consolidation are carried out for the soft foundation under the riprap border dike in Xuwei port area in Lianyungang： The border dike can＇ t break the water surface after sand quilt and drainage plate construction, and the cumulative settlement is lost when putting the settlement plate at the lowest tidal level, and the degree of consolidation is relatively small. Thus the drilling method before and after construction is applied to achieve the real settlement and degree of consolidation. Moreover, putting the settlement plate before the riprap construction with the enclosure protection method using steel reinforcement cage frame plus gravel bag, we can get the relatively correct settlement and degree of consolidation, so it is worthy of popularizing.

关 键 词：抛石围堤 软基 固结度 监测方法 

分 类 号：U655.54[交通运输工程—港口、海岸及近海工程]