|Table of Contents|

Calculation method of horizontal surrounding rock pressure for tunnel(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2012年02期
Page:
10-17
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Calculation method of horizontal surrounding rock pressure for tunnel
Author(s):
LUO Yan-bin; CHEN Jian-xun
Key Laboratory for Highway Bridge and Tunnel of Shaanxi Province,Chang’an University, Xi’an 710064,Shaanxi,China
Keywords:
tunnel engineering;  surrounding rock pressure;  deformation of middle wall;  horizontal load;  calculation method of pressure
PACS:
U451.2
DOI:
-
Abstract:
The deformation feature of middle wall for tunnel during construction was analyzed,the inner relationship between the deformation and the horizontal load was studied,and a new calculation method of horizontal surrounding rock pressure for tunnel was proposed.In the method,the analysis theory of structural mechanics was adopted to establish the relationship,in which the pressure was obtained by utilizing the monitoring deformations of middle wall.The pressure of V grade surrounding rock of shallow-buried soil tunnel in Tianhengshan is 110 kPa gained by the new method,and its range is 88-145 kPa gained by the Xie Jia-xiao method.When the friction angle of surrounding rock is 45° taken by the Xie Jia-xiao method,the pressure is 115 kPa and is close to the value computed by the new method,and their difference is 5 kPa,which proves that the new method is feasible.1 tab,10 figs,15 refs.

References:

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Memo

Memo:
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Last Update: 2012-04-30