Freezing Temperature Field of FSPR under Different Pipe Configurations: A Case Study in Gongbei Tunnel, China

Table 7

Contrast of temperature data at horizontal direction.

Measuring point	T0 (°C)	T21 (°C)	ΔT (°C)	V (°C/h)	Time of temperature below freezing point (h)	Δt (h)
h2	19.9	−1.2	−5.4	−1.00	19	9
h2^∗	19.6	−4.2		−1.13	10