Experimental Study on the Influence of Buried Geothermal Pipes on the Temperature Field of Concrete Roads

Table 10

Temperature rise value of the second, thirds and fourth layers under two different space conditions.

Position	Space (cm)	Initial temperature (°C)	Temperature after 2 h (°C)	Temperature after 6 h (°C)	The temperature rise value between initial temperature and temperature after 6 h (°C)
The second layer	10	6.49	14.67	18.03	11.54
	15	6.58	13.19	16.09	9.51
The third layer	10	7.76	12.12	14.79	7.03
	15	7.94	9.2	13.18	5.24
The fourth layer	10	9.05	11.45
	15	8.93	11.05