Model Test and Numerical Simulation of Vibration Attenuation for Highway Tunnels
(1 School of Civil Engineering & Architecture, Chongqing JiaoTong University , Chongqing 400074;
2 Chongqing Communications Research and Design Institute, Chongqing 40006;
3 Chongqing Communications Planning Survey & Design Institute ,Chongqing 401121)
Abstract：
Using the portal section of the Galongla tunnel as a prototype, model-scale relationships were set up, the analogous materials of surrounding rocks and lining were chosen, and a model for the vibration attenuation test was created. A buffer layer was set around the model. Furthermore, the loading system was established and a loading test on a vibrating platform was carried out. Meanwhile, the test results were analyzed and compared to those of finite-element analysis and vibration attenuation ratios were determined. The dynamic characteristics and the effect of the vibration attenuation layer were analyzed from two aspects of stresses and strains. Results verified the efficiency of the buffer layer.
ZHENG Sheng-Bao-1,
JIANG Shu-Ping-2,
Wang-Xiao-Wen-1 etc
.Model Test and Numerical Simulation of Vibration Attenuation for Highway Tunnels[J] MODERN TUNNELLING TECHNOLOGY, 2011,V48(4): 59-64
2011, Vol. 48 