剪切波速在判定石河子市某建设场地类别中的应用

场地类别是结构抗震设计中确定地震动参数的重要依据.相关规范允许在土类原位测试的基础上结合经验判定场地类别.但在工程地质条件复杂的场地中,这种方法存在很大的偏差.通过对比分析石河子某建筑场地根据地基土的工程地质特性、地基承载力等条件确定的场地类别与使用剪切波速判定的场地类别,说明经验方法存在的局限性,实测剪切波速依然是判定场地类别的可靠方法.

APPLICATION ON JUDGMENT OF CONSTRUCTION SITE CLASSIFICATION IN SHIHEZI WITH SHEAR WAVE VELOCITY

Site classification is an important basis for determining ground motion parameter on struc- tural seismic design. According to the related specifications, site classification can be determined by experience on the basis of in-situ test. When engineering geological condition of site was very com-plex, such method existed great deviation. By making comparative analysis of site classification in Shihezi determined by engineering geological characteristic, foundation bearing capacity and judged by shear wave velocity, the result shows that： empirical method has limitation while actual measure- ment shear wave velocity was a reliable technique for site classification.