区域场地分类方法研究综述

大量破坏性地震震害调查结果表明:松软土层场地上的震害情况要比坚硬岩石场地上的震害情况更加严重,在一定区域范围内不同类型场地上震害差别也较大,因此场地放大效应及区域场地分类的研究逐渐成为地震工程领域关注的热点问题。随着高精度地形地貌数据及地理信息处理软件的逐步完善,区域场地分类方法的研究迅速发展。本文重点介绍了基于地形条件、地貌条件、地质条件及综合条件的场地分类方法,对各方法的优缺点进行探讨,并分析了其在使用时应注意的重点问题。

Research progress of the regional site classification method

A large number of destructive earthquake damage investigation results show that the seismic damage on soft soil is more serious than that on hard rock, and the seismic damage on different site characteristics in a certain area is also different. Therefore, the research on site amplification effect and regional site classification has become a hot issue in the field of earthquake engineering. With the improvement of high-precision topographic and geomorphic data and thedevelopment of geographic information processing software, regional site classification methods are developing rapidly. This paper mainly introduces the site classification method based on topographic conditions, geomorphic conditions, geological conditions and comprehensive conditions, discusses the advantages and disadvantages of each method, and analyzes the key problems of them in application.