摘要
为了研究土的物理指标与静力触探Ps值之间的规律性,收集上海滨海平原区的多条地铁隧道的土工热物理试验指标.通过研究发现,导温系数和导热系数随着土层静力触探Ps值的增大而增大,比热容随着土层静力触探Ps值的增大而减小,呈现出一定的规律性.通过对热物理指标和静力触探Ps值进行曲线拟合,发现热物理指标可以利用静力触探Ps值通过特定的公式进行换算.
In order to research the correlation between the thermophysical indexes and static sounding Ps value of soil,the geotechnical thermophysical test indexes of several subway tunnels in the coastal plains area of Shanghai are collected.The research shows that the coefficients of temperature andthermal conductivity increase with the increment of static sounding Ps value of soil layer,and the specific heat capacity decreases with the increment of static sounding Ps value of soil layer,which present a certain of regularity.Using the curve fitting of thermophysical index and static sounding Ps value,it is found that the thermophysical index can be converted by a specific formula using the static sounding Ps value.
出处
《城市道桥与防洪》
2022年第7期197-199,共3页
Urban Roads Bridges & Flood Control
关键词
热物理
导温系数
导热系数
比热容
静力触探Ps值
thermophysics
temperature conductivity coefficient
thermal conductivity coefficient
specific heat capacity static sounding Ps value
