河湖地区软土地基大面积堆载沉降试验方案研究及结果分析

Scheme study and results analysis of large area heaped load settlement test on river and lake district soft foundation

结合岳阳城陵矶新港陆域堆场软基处理工程,根据地基沉降分层总和法计算方法,采用地基附加应力等效原理,确定原地面大面积堆载沉降试验方案。试验结果表明,大面积堆载沉降试验是一种较好的沉降试验方法,通过分析预测出的不同地基处理方案的工后沉降量,进而优化了软土地基的处理方案,指导了陆域软基处理的设计和施工。

Combined with the soft foundation treatment project of storage yard in Yueyang Chenglingji new port land area,the foundation settlement was calculated by layer-wise summation method,and the large area heaped load settlement test scheme on original ground was determined according to the additional stress in soil equivalence principle. Test results show that large area heaped load on original ground is a better method for settlement test.Through analyzing and forecasting the settlement amount after construction of different foundation treatment schemes,the soft foundation treatment method was optimized,which provided reference for the design and construction of soft foundation treatment.