Paper Title:
Field Monitoring of Surrounding Rock Stress and Rheological Analysis in Tunnel Construction
  Abstract

The stress field monitor and rheological analysis have been done during excavation. The field monitoring data are compared with numerical simulation results. The result shows: Rock stress variation is influenced by both spatial effect and time effect; when the distance from monitoring section to tunnel face is less than a tunnel diameter, the surrounding rock stress is mainly affected by spatial effect and changes violently; when the distance is more than a tunnel diameter, the surround rock presents rheological properties and stress changes smoothly and continuously. Analyzing the monitoring data and fitting by Poynting-Thomson three-parameter rheological model, we can get the radial stress variation equation with time and predict the final variation value. The final value and numerical simulation results are in comparative agreement.

  Info
Periodical
Advanced Materials Research (Volumes 261-263)
Edited by
Jingying Zhao
Pages
1079-1083
DOI
10.4028/www.scientific.net/AMR.261-263.1079
Citation
Q. Huang, Y. N. Dong, Z. D. Li, "Field Monitoring of Surrounding Rock Stress and Rheological Analysis in Tunnel Construction", Advanced Materials Research, Vols. 261-263, pp. 1079-1083, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ke Wei Ding, Ding Xia, Peng Hu
Abstract:With the accelerating process of urbanization, various kinds of unconventional concrete structure increases day by day. These kinds of...
2811
Authors: Jie Nan Tu, Ping Ma, Xiao Hua Pan
Chapter 3: Vibration Control and Condition Monitoring
Abstract:With the C# language and Access database, Building Foundation Pit Monitoring Information System (BFPMIS) was developed. At the process of...
695
Authors: Tao Li, Ying Chao Liu, Bo Liu, Wei Hong Yang, Yang Liu
Chapter 3: Tunnel, Subway and Underground Facilities
Abstract:To ensure the influence degree on the environment during constructing metro-station based on shield tunneling is very important in the subway...
1785
Authors: Zhong Ling Zong, Zhen Dong Zhang, Dong Rui Yao
Chapter 9: Monitoring and Control of Structures
Abstract:Based on the analysis of the cause of destruction and damage mechanism, safety monitoring and control technology of artificial island...
2962
Authors: Hai Xia Sun, Wen Zhao
Chapter 4: Tunnel, Subway and Underground Facilities
Abstract:Take the one-third of the allowable values as the basic value. The control standards of the ground subsidence is 30mm, and the control...
1102