单孔法波速测试在宿州市区建筑场地类别划分的应用及该区特征研究  

Application of single borehole method wave velocity test in the classification of construction sites in Suzhou urban area and research on the characteristics in this area

作　　者：刘春超 张倩清 李能勇 黄长友 LIU Chunchao;ZHANG Qianqing;LI Nengyong;HUANG Changyou(The First Institute of Hydrology and Engineering Geological Prospecting Anhui Geological Prospecting Bureau,Bengbu 233000,China)

机构地区：[1]安徽省地勘局第一水文工程地质勘查院,蚌埠233000

出　　处：《物探化探计算技术》2023年第5期559-565,共7页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：建筑场地的不同类别反映不同场地条件对基岩地震震动的综合放大效应,建筑场地类别是根据土层等效剪切波速和覆盖层厚度进行划分的。这里介绍了单孔法波速测试在计算土层等效剪切波速度,划分建筑场地类别上的应用,以及通过对宿州市区40个建筑场地的201个土层等效剪切波速数据Vse20和场地类别划分结果进行统计分析、研究,得出该区域类似地层条件的土层等效剪切波速近似呈正态分布特征,估算范围在195.89m/s~222.46 m/s,推测建筑场地类别为Ⅲ类。Different classifications of construction sites reflect the comprehensive amplification effect of different site conditions on bedrock seismic vibration.The classifications of construction sites are divided according to the equivalent shear wave velocity of the soil layer and the overburden thickness.This paper introduced the application of a single borehole method wave velocity test in calculating the soil layer's equivalent shear wave velocity and dividing the construction site classifications.Through the statistical analysis and Research on the 201 data of soil layer's equivalent shear wave velocity and the division results of site classifications of 40 construction sites in the Suzhou urban area,it is concluded that the equivalent shear wave velocity of soil layer under similar stratum conditions in this area is an approximately normal distribution.The estimation range is 195.89 ~ 222.46 M/s,and speculated that the construction site is class Ⅲ.

关 键 词：场地类别 等效剪切波速 单孔法 统计分析 正态分布 

分 类 号：P631.4[天文地球—地质矿产勘探]