地震峰值加速度对填筑路基地震响应特性的敏感性分析

针对填筑路堤地震作用下的动力响应敏感性,采用数值模拟方法研究典型填筑路堤内部在地震作用下的动力参数(加速度、速度、位移)及残留位移等随地震峰值加速度的变化规律及敏感关系,分析结果对明确填筑路堤动力稳定性的关键部位,提高路基设计水平等均具有较强实用价值和指导意义.

Analysis for Sensitivity of Earthquake Peak Acceleration to Seismic Response Characteristics of Filling Roadbeds

Aiming at dynamic response sensitivity of filling roadbeds under earthquake effect, this paper employs numerical simulation method to investigate change rules and sensitivity relations with earthquake peak acceleration of dynamic parameters （acceleration, speed and displacement ） and residual displacement, etc. of the inside of typical filling roadbeds under earthquake effect, the results of analysis exhibit strong practical values and instructive significances for making clear key parts of dynamic stability of filling roadbeds and improving design levels of roadbeds, etc..