广州地区海积软土蠕变特性试验研究

为探求广州地区海积软土在长期荷载作用下的蠕变规律,对广州地区海积软土开展了三轴压缩试验和不同固结围压作用下的三轴固结不排水蠕变试验,系统探讨了海积软土蠕变变形特性。试验结果表明,海积软土蠕变特性与多种因素有关,包括围压水平、偏压力水平、排水条件等;该地区软土具有较强的非线性蠕变特性,非线性特性通过偏应力水平的增大而逐渐显现;孔压增量与应力增量并非线性关系。更多还原

Experimental Study on Creep Behaviors of Marine Soft Soil in Guangzhou

For the search of the marine soft soil’s creep rule in Guangzhou area,the serious tests are carried out,including triaxial compression test and triaxial undrained consolidation creep test in different confining pressure so as to analyse the creep deformation characteristics of marine soft soil systematically.The experiment results indicate that there are many factors impacting on the creep characteristics of clay’s creep rule,such as confining pressure level,partial pressure level,drainage condition and so on;The marine soft soil in this area has the nonlinear creep feature,which could be revealed gradually with the increasing of partial stress;The relationship between hole pressure increment and stress increment is nonlinear.