Experimental progress research on the thermomechanical properties of soils
Shallow geothermal energy,which is one part of the geothermal resources,is the geothermal energy resource in the earth's interior with the value of development and utilization under the present technical and economic conditions.In addition,this energy has a wide distribution,large reserves,rapid regeneration,and high utilization value in China.Using ground source heat pump technology,the"Cold source"or"Heat source"of the shallow geothermal energy can be introduced into the structure to adjust the structure's temperature.Moreover,the structure can be warm in winter and cool in summer,and the carbon emissions can be reduced at the same time.Previous studies have shown that the exploitation and utilization of single-stage shallow geothermal energy are not enough,otherwise the multi-stage utilization of shallow geothermal energy and its integration with other clean energy such as solar energy are seriously lagging behind.This current situation is mainly due to the incomplete understanding of the thermodynamic properties of structures,soils,and the interface between structures and soils.In this paper,recent experimental research progress on the thermodynamic properties of soils is summarized.The heating mechanism,experimental process,and the influencing factors of temperature-controlled tests are systematically introduced,and future research trends concerning the experimental research on the thermodynamic properties of soils are predicted.
NETL
NSTL
万方数据
维普
