TEMPORAL AND SPATIAL VARIATION OF TEMPERATURE OF TYPICAL RAMMED EARTH SITES IN NORTHWEST CHINA

Temperature is an important influencing factor in the long-term process of rammed earth sites preserved in the open air from disease development to overall extinction. This study was based on real-time monitoring and analysis of the ambient temperature in four seasons and the diurnal variation of temperature inside sections of three typical rammed earth sites located in different climate zones in northwest China. The results show that the temperature of each monitoring point in the site section changes with the change of the ambient temperature,and the diurnal temperature of the monitoring point in the site section can be divided into two cooling stages and one warming stage. There are certain differences between the duration of the temperature change stages in summer and other seasons. More importantly,the temperature variation range and environmental response rate of the section in each temperature change stage in any season have the rule that the longitudinal change is significantly greater than the transverse change,and the temperature variation range and response rate in the second cooling stage in spring are the most significant.