Experiment on Improving Bearing Capacity of Pile Foundation in Loess Area by Postgrouting
Table 2
Pile parameters.
Name
Number
Type
Diameter (m)
Length (m)
Remarks
S1
1
Bored pile
1.5
22
① The number of the main reinforcements is 28, and the diameter is 22 mm ② The diameter of stirrups is 8 mm, and they are arranged along the length of piles ③ The stiffening stirrups are 18 mm in diameter and 2 m in interval This is the conventional pile
S2
1
Bored pile
1.5
22
① The number of the main reinforcements is 28, and the diameter is 22 mm ② The diameter of stirrups is 8 mm, and they are arranged along the length of piles ③ The stiffening stirrups are 18 mm in diameter and 2 m in interval This is the postgrouting pile
Anchor pile
8
Bored pile
1.7
42
① The number of the main reinforcements is 32, and the diameter is 25 mm ② The diameter of stirrups is 8 mm, and they are arranged along the length of piles ③ The stiffening stirrups are 22 mm in diameter, and 2 m in interval Each anchor pile is embedded with 18 threaded steel bars with a diameter of 32 mm, which are connected with the anchor puller to provide reaction force
