การประเมินความเสี่ยงของอาคารภายในมหาวิทยาลัยเกษตรศาสตร์จากแรงกระทำของแผ่นดินไหวในระยะไกล

Abstract

Behavior of soft Bangkok clay under 7.5 Richter earthquake generated from Srisawat fault was studied. The study area is scoped at Kasetsart university campus. Boreholes data in the study area were gathered and processed by using Kriging technique. Study area was divided into zones depending on variation of subsoil layers. Shear wave velocity profile was determined by Spectrum Analysis of Surface Wave (SASW) technique. 1-D wave propagation analyses were done in order to obtain response spectrum curves of various zones in the study area. Risk of buildings from the analyzed earthquake is defined by their heights which correspond to the period that gives large spectral acceleration from response spectrum curves. Building height together with other risk factors was used to give the risk score to the buildings in the campus.