围堤地基固结沉降与侧向变形附加沉降分析  

Analysis of Consolidation Settlement and Additional Lateral Deformation Settlement of Embankment Foundation

作　　者：夏超群 于伟 陈琪林 Xia Chaoqun;Yu Wei;Chen Qilin(Shanghai Waterway Engineering Design and Consulting Co.,Ltd.,Shanghai 200120,China;Shanghai Hangyuan Harbour Engineering Quality Test Co.,Ltd.,Shanghai 201208,China)

机构地区：[1]中交上海航道勘察设计研究院有限公司,上海200120 [2]上海航源港口工程质量检测有限公司,上海201208

出　　处：《港工技术》2022年第2期104-107,共4页Port Engineering Technology

摘　　要：在实际工程中,在上部荷载的作用下深层土体通常会发生比较大的侧向变形。一方面使得分层沉降管发生比较大的倾斜变形,由磁环离管口的深度变化得到土层准确的沉降值时需要进行竖向修正;另一方面使得分层沉降观测得到的沉降值,不仅包括地基的固结沉降值,还包括土体侧向变形引起的附加沉降值,需要将两者分离出来,才能更好地进行地基处理效果的分析。本文通过分析舟山某围堤项目典型观测断面的分层沉降观测过程线和测斜观测过程线,进行围堤地基观测中固结沉降与侧向变形附加沉降的分析,提出方法,以便类似项目参考。The upper load acts on deep soil body,which leads to significant lateral deformation.On the one hand,the layered settlement pipe encounters with a relatively large tilt deformation.The value for soil layer settlement obtained from the distance between magnetic ring and the pipe orifice has to be corrected vertically.On the other hand,the settlement value taken in the observation of layered settlement includes not only foundation consolidation settlement but also additional settlement caused by soil lateral deformation.The two values need to be separated from each other before the analysis of foundation treatment effect.Based on the curves for layered settlement observation and inclinometer observation of a typical embankment section in Zhoushan,a comparative analysis is carried out for the consolidation settlement and additional lateral deformation settlement of the embankment foundation.Some proposals may serve as a reference for similar projects.

关 键 词：围堤地基观测 固结沉降 侧向变形附加沉降 分层沉降观测 

分 类 号：TU44[建筑科学—岩土工程]