Research Article

Reinforcement Effects of Isolation Piles on the Adjacent Existing Tunnel in Building Construction

Table 9

Reinforcement effects of isolation piles on torsional deformation of the tunnel structure under different isolation pile top depths.

Isolation pile top depthβ after foundation pit excavation (%)β after building loading (%)

0.5Z21.2625.76
0.625Z21.6326.74
0.75Z21.2525.30
0.875Z15.9919.88
1Z10.3914.14
1.125Z2.646.42