K_0固结条件对上海粘性土强度和变形的影响  

RESEARCH ON THE STRENGTH AND DEFORMATION OF SHANGHAI CLAYEY SOILS UNDER K 0 CONSOLIDATION CONDITION

作　　者：袁聚云[1] 王新波[1] 董建国[1] 杨熙章[1] 

机构地区：[1]同济大学

出　　处：《大坝观测与土工测试》1999年第4期29-32,共4页Dam Observation and Geotechnical Tests

摘　　要：通过对上海第②层～第⑤层粘性土进行Ｋ０固结三轴不排水剪切试验，探讨Ｋ０固结初始应力对上海粘性土强度和变形性能的影响规律，并与各向等压初始应力的三轴固结不排水剪切试验的情况进行比较和分析。试验结果表明，Ｋ０固结初始应力对上海粘性土的强度和变形性能有影响；正确测试土的天然强度及变形规律，应使三轴试验的固结应力状态符合天然土层的初始应力条件，即Ｋ０固结状态。Based on triaxial undrained shear tests under K 0 consolidation conditions,this paper discusses the influence law of the K 0 consolidation state on the strength and deformation behavior of Shanghai clayey soils.Comparison and analysis are also made of the condition of consolidated isotropically undrained shear test.The test results show that the soil strength and deformation are influenced by K 0 initial stresses.

关 键 词：K0固结 粘性土 强度 变形 

分 类 号：TU411.5[建筑科学—岩土工程] TU442[建筑科学—土工工程]