文献类型：期刊文献

中文题名：滨海软土动孔压发展模型核心函数研究

英文题名：Study on core function for dynamic pore water pressure developing process model of seashore soft soil

作者：王伟[1,2,3];卢廷浩[3]

机构：[1]绍兴文理学院土木工程系;[2]中国科学院冻土工程国家重点实验室;[3]河海大学岩土工程研究所

年份：2009

卷号：18

期号：5

起止页码：192

中文期刊名：自然灾害学报

外文期刊名：Journal of Natural Disasters

收录：CSTPCD、、Scopus、CSCD2011_2012、北大核心2008、北大核心、CSCD

基金：中科院冻土工程国家重点实验室开放基金资助项目(SKLFSE200603);浙江省自然科学基金资助项目(Y1080839);浙江省高校优秀青年教师资助计划(浙教办高科2008-176号)

语种：中文

中文关键词：软土;动孔压;核心函数;能量耗散理论

外文关键词：soft soil; dynamic pore pressure; core function; energy dissipation theory

中文摘要：动孔压发展模型在滨海相软土动力学性质的研究中非常重要。结合软土动孔压发展的机理,分析了其数学模型的核心函数应具有的基本性质。提出了动孔压半值指数的概念,揭示了指数曲线模型、双曲线模型等传统动孔压模型核心函数的缺陷。根据能量耗散原理,建立了基于微分控制方程的动孔压发展新模型。数学分析表明,两个传统模型的核心函数及其动孔压半值指数均是新模型对应的特例,新模型克服了传统模型的不足,具有更广泛的实用性。

外文摘要：Model of dynamic pore water pressure developing process （DPDP） plays an important role in dynamic behavior study of seashore soft soil. According to mechanism of the DPDP, mathematical property that core function of the DPDP model should possess was analyzed. Concept of half-value pore water pressure index was proposed and employed to reveal the shortcomings of core functions of traditional DPDP models, such as exponent model and hyperbolic model. Based on energy dissipation theory and differential governing equation, a new model of DPDP was established. Mathematical analyses show that the core functions and half - value pore water pressure indexes of the two traditional models are only the simplified expressions of those of the new model, respectively. Finally, validity of the new model was proved.