|Table of Contents|

Optimization of construction of deep-buried long tunnel through faults

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年06期
Page:
66-71
Research Field:
Publishing date:
2011-12-20

Info

Title:
Optimization of construction of deep-buried long tunnel through faults
Author(s):
LI Bing;  JIN Ai-bing;  WANG Yu;  DENG Fu-gen
School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, China
Keywords:
tunnel engineering;  fault;  deep-buried long tunnel;  center diagram method
PACS:
U455.4
DOI:
-
Abstract:
The construction of fault is used as project background in Zhangcheng highway tunnel, the dynamic excavation of tunnel is simulated in fault by means of FLAC3D, the center diagram method and bench cut method are adopted, and the mechanical response of the two methods are comparatively analyzed. The results show that the fault rock is mainly controlled by the maximum principal stress, the shear strain is mainly a trend of the center is smaller than both sides along the fault, both sides are smaller than the center along the vertical section, the right side is smaller than the left along the horizontal section. The surrounding rock mass are mainly shear failure, the upper wall is the most dangerous. In the context of this project, the center diagram method is better than bench cut method, the heading one is the key to center diagram method. 5 tabs, 6 figs, 14 refs.

References:

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Last Update: 2011-12-20