Based on the characteristic of FEA explicit algorithm and implicit algorithm

it is studied what parallel computing cluster platform′s hardware is required and how the platform is built in the field of geotechnical engineering dynamical analysis

and the Abaqus software′s numerical simulation parallel computing cluster platform is built

which is applied to dynamical analysis in the filed of geotechnical engineering.The cluster platform is based on EM64T hardware framework

uses dual-path Intel Xeon processor

makes use of Gigabit Ethernet subsystem

and configures 64-bit applications and Linux operating system.32CPU parallel computing can be achieved using this cluster platform.The storage subsystem has impact on the cluster′s performance.The impact is tested.Two ways of Ethernet optimization are discussed.The platform′s computing speeds before and after optimization are tested

using an underground structure dynamic analysis of earthquake FEA model.The test′s result shows that the Ethernet performance can be optimized effectually

the two optimization′s ways can increase the cluster platform′s computing speed.The application examples in the field of fluid-solid coupling dynamical analysis

rapid rail transit ambient vibration analysis and underground structure seismic response analysis are introduced.The platform′s computing speeds of explicit algorithm

implicit algorithm

small-scale calculation and large-scale calculation are showed through the application examples.It is proved that the numerical simulation cluster platform meets the requirements of calculation scale

calculation accuracy and timeliness.