Experimental Study on Bending Moment of Double-Row Steel Pipe Piles in Foundation Excavation

Table 2

Monitoring date and working conditions.

Monitoring date (d)	Working conditions
1	Depth is 0
22	Depth is 2.35 m
27	Depth is 4.50 m, AC1 installation
37	Depth is 5.00 m, AC2 installation
41	Depth is 6.75 m
47	AC3 installation
54	Depth is 8.60 m
88	Depth is 10.75 m
104	Second-order piles installation
117	Depth is 12.75 m
123	Depth is 16.65 m, BL1 installation
139	Depth is 19.10 m, BL2 installation
153	Depth is 20.95 m, BL3 installation
161	Third-order piles installation
168	Depth is 21.4 m
177	Depth is 23.00 m
184	Depth is 25.50 m, BL5 installation
190	BL6 installation
206	Depth is 28.00 m
210	Depth is 28.74 m
216	Depth is 32.50 m
221	BL7 and BL8 installation