基于2种不同判别方法的深厚软弱场地液化对比研究  

Comparative study on the liquefaction of deep soft site based on two different liquefaction judgment methods

作　　者：程艺 庄海洋[1] 李兆焱[2,3] 吴琪 CHENG Yi;ZHUANG Haiyang;LI Zhaoyan;WU Qi(Institute of Geotechnical Engineering,Nanjing Tech University,Nanjing 211816,China;Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China;Key Laboratory of Earthquake Disaster Mitigation,Ministry of Emergency Management,Harbin 150080,China)

机构地区：[1]南京工业大学岩土工程研究所,江苏南京211816 [2]中国地震局工程力学研究所地震工程与工程振动重点实验室,黑龙江哈尔滨150080 [3]地震灾害防治应急管理部重点实验室,黑龙江哈尔滨150080

出　　处：《自然灾害学报》2023年第5期100-107,共8页Journal of Natural Disasters

基　　金：中国地震局地震工程与工程振动重点实验室重点专项(2020EEEVL0301)。

摘　　要：以苏州轨道交通沿线及部分其他工程深厚软弱场地的土层原位测试数据为依据,使用GB 50011—2010《建筑抗震设计规范》(2016年版)和CECS160∶2004《建筑工程抗震性态设计通则》(2019修订版)中规定的2种不同砂土液化判别方法,开展了苏州地区工程场地液化判别结果的对比分析,规范方法与通则方法的液化判别结果存在明显的差异,在是否液化的判别上,规范方法判别结果更加地保守,明确了我国目前规范中方法的局限性和保守性及通则中方法的先进性和适应性。同时,使用ArcGIS软件,采用克里金插值法,绘制了苏州部分地区的液化区域地图,划分出非液化区、轻微液化区、中等液化区和严重液化区,为工程场地评估液化区提供参考。Based on the in-situ data of soil layers along Suzhou rail transit lines and some other engineering sites,this paper uses the two different sand liquefaction judgement methods specified in the China Code for Seismic Design of Buildings(Version 2016)and General Rules for Performance-based Seismic Design of Buildings(Rev.2019)to carry out the comparative analysis of the liquefaction discrimination results of the engineering sites in the main urban areas of Suzhou.There are obvious differences in the results of liquefaction discrimination between the methods in the current codes of China and the general rules.The results of the normative method are more conservative in the discrimination of liquefaction.It clarifies the limitations and conservatism of the methods in the current codes of China and the advancement and adaptability of the General Rules.At the same time,ArcGIS software is used to draw the map of liquefaction area in some areas of Suzhou by Kriging interpolation method,and the non-liquefaction areas,slight liquefaction areas,medium liquefaction areas and severe liquefaction areas are all divided and compared,which provides references for evaluating liquefaction areas in engineering construction of Suzhou City.

关 键 词：砂土液化判别 ARCGIS 克里金插值法 苏州地区 

分 类 号：TU4[建筑科学—土工工程]