海堤工程砂井排水固结变形分析  

Analysis of consolidation deformation by sand drain foundation on sea wall project

作　　者：郭锡斌 

机构地区：[1]福建永福工程顾问有限公司,福建福州350003

出　　处：《福建建筑》2011年第9期39-42,共4页Fujian Architecture & Construction

摘　　要：对采用砂井地基处理的深厚软基上泉港峰尾海堤工程试验段施工过程进行了监测。应用Biot固结理论的平面有限元方法,将砂井地基的三维问题转化为平面二维问题,对该工程砂井地基固结沉降、孔隙水压力进行分析与预估。计算结果与实际监测数据进行对比,有较高的吻合度。该方法能较好地反应地基的沉降过程和固结特性,评价软基处理方法的效果,并可对未施工段海堤的安全稳定状态的预测、砂井地基效果的评价和施工进度的制定提供技术支持。The construction process of the seawall on soft and thick foundation of the experimental section of the sea wall project in Fengwei of Quangang with sand drain foundation was monitored.Appled Biot＇s consolidation theory of plane finite element method and conversived the foundation of the 3 d sand well problem into a two-dimensional,the consolidation and pore water pressure are analyzed and estimated.The calculated results are in good agreement with the measured data.This method can well predict the settlement and consolidation of sand drain foundation,evaluate the effect of soft foundation treatment method and can provide the technical support for the construction period stable state prediction,the effect of soft foundation treatment and construction schedule formulation of next period construction.

关 键 词：砂井 BIOT固结理论 孔隙水压力 海堤 

分 类 号：U655.544[交通运输工程—港口、海岸及近海工程]