化工矿产地质2024，Vol.46Issue(4)：370-376,7.
浅层岩土体热物性参数测定的影响因素分析
Analysis of Influence Factors on the Determination of Thermal Property Parameters of Shallow Rock and Soil Mass
摘要
Abstract
In the shallow geothermal exploration,the thermal property parameters of rock and soil mass is an important for the regional evaluation and engineering application.In order to improve the accuracy of thermal property parameters,a heat transfer model with the function of calculating the influence error of single factor was established,and the influencing factors of the thermal property test of rock and soil mass are evaluated respectively.The results show:The thermal conductivity of mud at the different temperatures remains basically stable after 10 days of stopping drilling.When the loading power fluctuates,the appropriate loading time and data discard time can be selected according to the fluctuation cycle rule to reduce the solution errors.If there is an interruption in the loading process,the thermal conductivity calculated by using the line-heat-resource simplification method has a large error.The later the start time of the interruption,the longer the interruption time,the greater the error.During the no-load cycle test,the initial average temperature of rock and soil mass can be obtained at the observation time of 15min.The temperature of rock and soil mass is mainly affected by the temperature in the four seasons.The depth is mainly within 15m,the lowest average temperature is in February and March,and the highest average temperature is in August and September,which is about 2 months behind the local air temperature.关键词
浅层岩土体/热物性参数/数值传热模型/影响因素Key words
Shallow rock and soil mass/Thermal property parameters/Numerical heat transfer model/Influence factor分类
天文与地球科学引用本文复制引用
丰莉,郭文建,杨树杰..浅层岩土体热物性参数测定的影响因素分析[J].化工矿产地质,2024,46(4):370-376,7.基金项目
厅局级 地下岩土体热物性测试影响计算方法优化研究(编号:2021GX011) （编号:2021GX011）
