堆载预压软基处理最终沉降量及固结度计算分析  

Calculation and Analysis of Final Settlement and Consolidation Degree of Soft Foundation Treatement by Preloading

作　　者：孙广 张彦红 葛青茹 李雅晴 Sun Guang;Zhang Yanhong;Ge Qingru;Li Yaqing(China Hebei Construction&Geotechnical Investigation Group Ltd.)

机构地区：[1]中冀建勘集团有限公司,石家庄市050227

出　　处：《勘察科学技术》2024年第1期16-19,25,共5页Site Investigation Science and Technology

摘　　要：该文结合某电厂堆载预压地基处理施工监测实例,对获取的大量监测数据进行了分析。通过对数据进行多项式拟合,采用三点法计算最终沉降量以及固结度;同时采用经验双曲线法计算软基处理的最终沉降量与固结度,并对两种方法进行分析。结果表明,经验双曲线法计算的固结度比三点法更小,指出了两种方法在实际工程中应用的注意事项,并做出了合理选择。This paper analyzes a large amount of monitoring data obtained by combining a construction monitoring example of a certain power plant’s preloading foundation treatment.By fitting polynomial to the data,the final settlement and consolidation degree are calculated by using the three-point method.At the same time,the empirical hyperbolic method is used to calculate the final settlement and consolidation degree of soft foundation treatment,and the two methods are analyzed.The results show that the consolidation degree calculated by the empirical hyperbolic method is smaller than that by the three-point method.Points out the precautions for the application of two methods in practical engineering and makes reasonable choices.

关 键 词：堆载预压 最终沉降量 固结度 三点法 经验双曲线法 

分 类 号：TU472.33[建筑科学—结构工程]