堆载预压法处理软基的沉降分析及预测  

Settlement Analysis and Prediction of Soft Foundation Treated by Surcharge Preloading

作　　者：肖玉德[1] 钱炜[2] 

机构地区：[1]安徽交通职业技术学院,安徽合肥230051 [2]浙江水利水电学院测绘与市政工程学院,浙江杭州310018

出　　处：《浙江水利水电学院学报》2015年第4期60-64,共5页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：软土地基具有高压缩性、低强度、差透水性的特点,在工程建设之前需要对其进行相应的处理.在软土地基的设计与处理中,最终沉降量和沉降速率也是需要严格控制的.以蚌埠市五河西环工程为例,使用不同的沉降预测方法预测了该工程的最终沉降量,其中指数曲线法预测效果较好,所有监测点位工后固结度均达到90%以上.对预测结果进行了对比分析,得到影响预测结果的一些因素和不同预测方法的适用条件,为该地区软土在沉降方面积累了一些经验和理论.Soft soil foundation is an adverse geologic phenomena with the characteristics of high compressibility, low strength and poor water permeability, and corresponding processing needs to be carried on before the project construction. In the design and processing for soft soil foundation, the final settlement and settlement rate must also be strictly controlled. The commonly used methods for predicting soft soil foundation settlement are introduced respectively in this article, taking Wuhe Engineering in Bengbu as an example. Among the different settlement prediction methods for the final settlement of the engineering, the effect of index curve method is the best, with consolidation degree above 90% in all monitoring points. And the prediction results are contrastively analyzed and discussed, as well as some influencing factors and applicable conditions of different prediction methods, offering some processing experiences in soft soil settlement.

关 键 词：软土 堆载预压法 沉降预测 

分 类 号：TU433[建筑科学—岩土工程]