欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
基于Biot两相饱和多孔介质理论建立了频域内饱和土层的刚度矩阵,对从基岩倾斜入射地震波下饱和土层的波动响应进行了数值研究,入射波采取修正的Kanai-Tajimi谱。通过土层地表面处的水平以及竖直放大系数研究了在不同工况条件下土层的波动响应,研究结果表明,土层的波动响应在入射角接近临界入射角时达到峰值;土层的波动响应随着基岩埋深基以及土层阻尼比的增大显著减小;而土层与基岩的波速比对土层的波动响应的影响存在临界波速比,使土层响应达到极值。对于含有夹层的地质环境,研究了波动响应沿深度的分布,通过与均质土层下响应对比,显示非均质夹层能显著减小土层地表处的波动响应,尤其软夹层能较好地阻止入射波向上的传播。
英文摘要：
Based on Biot＇s two phase poroelastic theory,the stiffness matices of saturated soil is developed in frequency domain and then the dynamic responses for a multi-layered poroelastic soil subjected to earthquake seismic wave at inclined incidence from the bedrock is studied with numerical method,modified Kanai-Tajimi spectrum for incident earthquake wave is adopted.The amplification of soil surface with different conditions are compared,results show that for the seismic wave at inclined incidence from bedrock,the response of soil reaches the maximun when the angle of incidence reachs critical incident angle;the response of soil surface decreasing with the bedrock depth and damper ratio;while there＇s a critical value for velocity of soil-bedrock ratio that soil response get it＇s maximum.For soils with non-homogenous middle layer,the response along soil depth was explicite given in this paper and conpared with homogenous soil,the response can be weaken by it,especially soft middle layer can impede the propagation of seismic wave from bottom notably.
同期刊论文项目
同项目期刊论文
Using a time-domian higher-order boundary element method to simulate wave and current diffraction fr
Identification of hydrodynamic coefficients from experiment of vortex-induced vibration of slender r
Laboratory observations of wave evolution, modulation and blocking due to spatially varying opposing
Nonlinear lifting theory for unsteady WIG in proximity to incident water waves. Part 1: Two-dimensio
A numerical study of whole ship structural damage resulting from close-in underwater explosion shock
Active Thermometry Based DS18B20 Temperature Sensor Network for Offshore Pipeline Scour Monitoring U
Experimental investigation of the interaction of multidirectional irregular waves with a large cylin
Time-domain numerical and experimental analysis of hydroelastic response of a very large floating st
Research of concrete residual strains monitoring based on WLI and FBG following exposure to freeze-t
Numerical studies on sloshing in rectangular tanks using a tree-based adaptive solver and experiment
Numerical and experimental analysis of hydroelastic response on a very large floating structure edge
Development of a regional coastal management decision-aided system. Part A: Establishment of an auto
Vortex shedding from a two-dimensional cylinder beneath a rigid wall and a free surface according to
Nonlinear lifting theory for unsteady WIG in proximity to incident water waves. Part 2: Three-dimens
Second-order coupling of numerical and physical wave tanks for 2D irregular waves. Part II: Experime
Direct Time Domain Numerical Analysis of Transient Behavior of a VLFS during Unsteady External Loads
Coupled wind-wave time domain analysis of floating offshore wind turbine based on Computational Flui
Thickness distribution and extent of sea ice and snow in Prydz Bay and surrounding waters observed i
Laboratory tests of vortex-induced vibrations of a long flexible riser pipe subjected to uniform flo
A three-index estimator based on active thermometry and a novel monitoring system of scour under sub
Application of Multiscale Fiber Optical Sensing Network Based on Brillouin and Fiber Bragg Grating S
Numerical analysis on ultimate pullout bearing capacity of drag embedment anchor based on elastic-pl
Scour monitoring system of subsea pipeline using distributed Brillouin optical sensors based on acti
An unstructured FEM model based on Boussinesq equations and its application to the calculation of mu
Application of support vector machine for pattern classification of active thermometry-based pipelin
Coupled control of the horizontal and vertical plane motions of a semi-submersible platform by a dyn
BP neural network recognition algorithm for scour monitoring of subsea pipelines based on active the
Second-order coupling of numerical and physical wave tanks for 2D irregular waves. Part I: Formulati
Numerical study of transient harbor resonance induced by solitary waves resonance induced by solitar
期刊信息
位置：