摘要
Asaoka法在岩土工程中经常用于工后沉降的预测,同时Asaoka方法中的Si-Si+1直线的斜率β1和固结系数Cv的关系还被广泛用于反演地基的固结系数。但相关资料表明用该方法反演得到固结系数与地基的固结系数存在一定的误差。为此分析了产生误差的原因,并在此基础上,根据Terzaghi一维固结理论推导了的Si-Si+1直线的斜率k1和固结系数Cv之间的表达式。分析表明采用推导得到的k1-Cv表达式反演的固结系数与地基的固结系数能够较好地吻合。
The Asaoka method has often been used to predict the post-construction settlement in geotechnical engineering and the ,consolidation coefficient can be calculated with the quantitative expression of consolidation coefficient Cv versus the slope β1 of the Si-Si＋1 straight line in the Asaoka＇s method based on the observed settlement data. However, it has been reported that the back-analyzed consolidation coefficients with the Asaoka＇s method are not consistent with the in-situ one. This study investigated this discrepancy, and propsoed a new method for calculating the consolidation coefficient based on one-dimensional Terzaghi＇s consolidation theory. The hack-analyzed consolidation coeffcients with the new exnression are anita consistent with the in-situ one.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2005年第11期1807-1809,1828,共4页
Rock and Soil Mechanics
基金
教育部博士点基金项目资助(No.2001028618)
东南大学优秀博士学位论文基金资助(No.YBJJ0411)
