双线平行顶管上跨地铁盾构隧道施工环境影响实测分析

应宏伟, 姚言, 王奎华, 张昌桔

Observed Environment Response Caused by Construction of Double-Line Parallel Pipe Jacking Crossing over Metro Shield Tunnels

YING Hongwei, YAO Yan, WANG Kuihua, ZHANG Changju

表3 双线顶管地表沉降曲线拟合参数

Tab.3 Fitting parameters of the transverse surface settlement curve of Peck formula of double-line pipe jacking

断面 Smax,1/mm Smax,2/mm i1/m i2/m K1 K2 η1/% η2/% ηavg/% DBC-1 56.31 70.41 2.94 2.41 0.71 0.58 3.02 3.10 3.06 DBC-2 44.6 65.34 3.17 2.28 0.77 0.55 2.58 2.72 2.65 DBC-3 49.96 51.21 2.96 2.57 0.71 0.62 2.70 2.40 2.55 DBC-4 55.07 93.83 3.04 2.19 0.73 0.53 3.06 3.75 3.41 DBC-5 37.31 96.44 2.94 2.39 0.71 0.58 2.00 4.21 3.11 DBC-6 28.9 68.01 2.87 2.37 0.69 0.57 1.52 2.94 2.23 DBC-7 29.29 47.56 3.56 2.71 0.86 0.65 1.90 2.35 2.13 平均 43.06 70.4 3.07 2.42 0.74 0.58 2.41 3.11 2.76