基于贵州省地震灾害普查项目及贵阳市地震安全性评价中钻孔及剪切波速资料,对研究区内常规土类埋深和实测剪切波速进行统计分析,通过4种拟合模型分析二者间的相关性。结果表明:贵阳地区覆盖层常见土类为人工填土、粘土、红黏土、黄粘土、碎石土,埋深均较浅,多为2—6 m;剪切波速与埋深间存在较好的正相关性;采用ExpGrow2模型进行拟合,效果更优。基于实测数据,对常见土类在1—10 m埋深下的波速中位数和平均数进行统计分析,为工程实践中的波速测试和数据检验提供参考。
Based on the Guizhou Provincial Earthquake Disaster Census Project and the borehole and shear-wave velocity materials in the Earthquake Safety Evaluation of Guiyang City, the correlation between conventional soil burial depth and measured shear-wave velocity in the research area is analyzed. Results show that the common soil types in the covering layer of the Guiyang area are artificial fill, clay (red clay, yellow clay), and gravel soil, with shallow burial depths of 2-6 meters. There is a positive correlation between shear-wave velocity and burial depth; the EXPGROW2 model yields better fitting results. Based on measured data, statistical analysis is conducted on the median and average wave velocity of common soil types at depths of 1-10 meters, providing a reference for wave velocity testing and data verification in engineering practice.
2025,46(1): 20-28 收稿日期:2024-8-2
DOI:10.3969/j.issn.1003-3246.2025.01.003
基金项目:贵州省地震局地震科技基金(项目编号:GZSDZJDZKJJJ202105,GZSDZJKYJJKT-202301,GZSDZJKYJJKT-202302)
作者简介:李世杰(1991—),男,高级工程师,主要研究方向:地震地质;地震危险性;地震活动性。E-mail:729883299@qq.com
*通讯作者:罗丹芩(1992—),女,高级工程师,主要研究方向:工程地震、地震活动性。E-mail:674225525@qq.com
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