Abstract：
Considering that accuracy in measuring and predicting the rock deformation featured by time-varying in?
crease and randomness is a key measure for ensuring the safety of tunnel construction, this paper predicts the rock deformations under three models, i.e., a conventional GM (1,1) model, a homogeneous exponential function GM (1,1)model and a non-homogeneous exponential function GM (1,1) model, and makes a relevant comparison. The results show that: the errors under the three models are 7.16%, 5.01% and 2.99%, respectively, while the relative errors are -8%, -5.52% and -3.05%, respectively, indicating that the non-homogeneous exponential function GM (1, 1)model is highly accurate for deformation prediction
WANG Xin-Sheng- 1 Zuo-Wei-Qin- 2 Zhou-Cheng-Tao- 1 Chen- Yu- 1 Hou-Ya-Bin- 1
.Deformation Prediction for Tunnel Surrounding Rock Based on the NonHomogeneous Exponential Function GM (1, 1) Model[J] MODERN TUNNELLING TECHNOLOGY, 2017,V54(1): 105-109
2017, Vol. 54 