|Table of Contents|

Stress characteristics of middle wall in soft-wreak surrounding rocks highway multiple-arch tunnel under different stress field(PDF)

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

Issue:
2010年06期
Page:
50-55
Research Field:
Publishing date:
2010-12-20

Info

Title:
Stress characteristics of middle wall in soft-wreak surrounding rocks highway multiple-arch tunnel under different stress field
Author(s):
LAI Hong-peng;  XIE Yong-li;  YANG Xiao-hua
School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
tunnel engineering;  soft-wreak surrounding rock;  multiple-arch tunnel;  stress field;  middle wall;  strees characteristis
PACS:
U451.2
DOI:
-
Abstract:
In order to understand the mechanical characteristics of middle wall in highway multiple-arch tunnel under different stress field more fully, this paper established the effective finite element model based on the structure of curved middle-wall multiple-arch tunnel, used different loading to simulate different stress field, reached on the middle wall mechanical characteristics of highway multiple-arch tunnel in soft rock in different stress field, analyzed the impact of the supporting structure by force on stress field, contrasted the results of model test and simulation analysis. The results show that: the bias in construction become more significantly with the smaller coefficient of lateral pressure in the top of the middle wall; the bias in construction become more significantly with the larger coefficient of lateral pressure in the middle and bottom of the middle wall; the vertical become larger with the smaller coefficient of lateral stress. 1 tab, 7 figs, 9 refs.

References:

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Memo

Memo:
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Last Update: 2010-12-20