【摘要】 本文基于一般粘性土和黄土的压缩试验结果分析，表明通过ｌｏｇ（１＋ｅ）－ｌｏｇｐ′曲线可以准确地确定先期固结压力ｐｃ′。这种方法比常用的卡萨格兰德（Ｃｓａｇｒａｎｄｅ）方法更加方便。黄土虽然是一种具有显著结构强度的欠固结土，常用不同于先期固结压力的准先期固结压力ｐｃ′综合反映固结和胶结作用，但准先期固结压力仍然可以用上述两种方法确定。更多还原

【Abstract】 Based on analysis of results from compression tests for ordinary clay and loess, it is known that the preconsolidation force p c′ can be determined from test curve of log(1+ e ) against log p′ . The method is more simple and accurate than that of Csagrande method. Loess is a structured soil but its consolidation feature not so good under compacting force. Thus, p s′ is usually used to represent the combined effect of both preconsolidation pressure and solidification internal force. There is a large different between p c′ and p s′ , but p s′ can also be determined by both methods as mentioned above.更多还原