P_1波入射准饱和土的波型转换问题  

Analysis on Wave Mode Conversion of Incident P_1 Wave in Nearly Saturated Soil

作　　者：薛松涛[1] 陈诗慧[2] 陈镕[2] 孙晓亮 王远功[2] 

机构地区：[1]日本近大学理工学部建筑学科,日本大阪5778802 [2]同济大学结构工程与防灾研究所,上海200092 [3]上海机电工业工程监理有限公司,上海200002

出　　处：《力学季刊》2005年第1期128-133,共6页Chinese Quarterly of Mechanics

基　　金：国家杰出青年科学基金(59925820)

摘　　要：针对各向同性准饱和土体中体波的传播问题,本文深入研究了P1 波(第一纵波)入射土体时所出现的波型转换现象。在准饱和土波动方程的基础上,通过数值算例,找出标准参数土体模型的临界饱和度及波型转换角,并分析土体孔隙率、渗流系数、水压力和入射波频率等参数对该现象的影响。Based on the equation of wave propagation in nearly saturated soil, the study on phenomena of wave mode conversion of incident P 1 wave was carried out. With numerical simulation, the critical saturation degree was found and the parameters, such as porosity, coefficient of permeability, water pressure and frequency of incident wave were proved to have evident effects on the appearance of this conversion.

关 键 词：准饱和土 P1波 波型转换 

分 类 号：TU435[建筑科学—岩土工程] O313[建筑科学—土工工程]