文献类型：期刊文献

中文题名：软土路基线性加载沉降曲线的研究

英文题名：Study on settlement curve of ramp loading roadbed on soft ground

作者：王伟[1];卢廷浩[2];王晓妮[2]

机构：[1]绍兴文理学院土木工程系;[2]河海大学岩土工程研究所

年份：2006

卷号：27

期号：5

起止页码：791

中文期刊名：岩土力学

外文期刊名：Rock and Soil Mechanics

收录：CSTPCD、、ESCI(收录号：WOS:000410045200022)、EI(收录号：2006279979811)、北大核心2004、Scopus(收录号：2-s2.0-33745662671)、CSCD2011_2012、WOS、北大核心、CSCD

语种：中文

中文关键词：路基沉降;孔压滞后;固结度;S形曲线;最终沉降;拐点

外文关键词：settlement of roadbed; consolidation degree; S-shape curve; ultimate settlement; inflection point

中文摘要：分析了线性加载路基沉降的机理,直接从一维固结度出发,证明了沉降曲线呈S形状。对Gompertz模型、Logistic模型、Weibull模型等3种呈S形状的成长模型进行数学分析。前两种模型虽然使用广泛,但不能反映加载速率和施工方法的影响,反弯点处沉降值与最终沉降相对不变,用它们进行基础全程沉降模拟具有一定的局限性;相对而言,Weibull模型具有较强的适用性。最后对路基沉降模拟提出了建议。

外文摘要：Mechanism of settlement of ramp loading roadbed on soft ground is analyzed; and proof of settlement-time curve appearing S-shape is conducted directly based on consolidation degree of one-dimension soil consolidation theory. Mathematical analyses of Gompertz, logistic, Weibull growth model that appearing S-shape are conducted. Although Gompertz, logistic growth models are adopted extensively to predict settlement of ramp loading roadbed, they have deficiencies such as： （1）neglecting loading velocity; （2）neglecting construction art; （3） relative constant ratio of settlement at inflection point to ultimate settlement. Good usabilitv of Weibull erowth model is nointed out. Finally. suggests on prediction of soft roadbed settlement are proposed.