Analysis of Soft Rock Tunnel Mechanics Effects Based on Strain Softening Model of Surrounding Rock

被引：0

作者：

Zhang Jie-hong ^{[1
]}

机构：

[1] Changan Univ, Sch Geol Engn & Geomat, Xian 710054, Shaanxi, Peoples R China

来源：

ADVANCED RESEARCH ON ENGINEERING MATERIALS, ENERGY, MANAGEMENT AND CONTROL, PTS 1 AND 2 | 2012年 / 424-425卷

关键词：

the high stress; tunnel in soft rock; constitutive model; strain softening; numerical analysis; GROUND RESPONSE CURVES;

D O I：

10.4028/www.scientific.net/AMR.424-425.520

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Aiming at mechanical response of soft surrounding tunnel affected by high stress, the mechanical effect in the process of excavation and supporting of surrounding rockmass was analyzed by softening model. First of all, mechanics properties of soft surrounding rock and strain softening model have been discussed. Then, based on strain softening model, numerical analysis was carried out, and stress and displacement field, plastic range in the in the process of excavation and supporting was obtained. The result was very useful for the optimization of construction design and perfection for supporting program.

引用

页码：520 / 525

页数：6

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