New Foundation Treatment Technology Using Cement Soil Composite Tubular Piles Supported by Optical Fiber Sensing Technology

Table 2

Optical fiber information.

Fiber type	Length (m)	Diameter (mm)	Surface material	Strain sensing coefficient/(MHZ/%)	Temperature sensing coefficient/(MHZ/°C)
A1	100	3.00	Polyurethane	498	2.96
A2	100	0.8	Nylon	505	2.99