Conception of using SBQ as reference of sand soil tunnel surrounding rock classfication

WANG Ming-nian; WANG Yu-suo; LI Yu-wen

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Conception of using SBQ as reference of sand soil tunnel surrounding rock classfication

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- Conception of using SBQ as reference of sand soil tunnel surrounding rock classfication
- Vol. 29, Issue 12, (2008)
- 作者机构：
  
  1. 西南交通大学土木工程学院,成都,610031
  2. 四川省交通厅公路规划勘察设计研究院,成都,610041
- 作者简介：
- 基金信息：
- DOI：
  CLC： U451
- Online First：11 August 2013，
  
  Published：2008
- 稿件说明：
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WANG Ming-nian, WANG Yu-suo, LI Yu-wen. Conception of using SBQ as reference of sand soil tunnel surrounding rock classfication[J]. 2008, 29(12).
DOI：

WANG Ming-nian, WANG Yu-suo, LI Yu-wen. Conception of using SBQ as reference of sand soil tunnel surrounding rock classfication[J]. 2008, 29(12). DOI：

摘要

砂类土的抗剪强度和重度与砂类土体隧道围岩稳定性有较大的关系。从影响砂类土体隧道围岩稳定性因素及围岩分级的角度出发，探讨了利用综合性指标SBQ值作为基准指标来评定砂类土体隧道围岩稳定性方法的可行性。分析表明，SBQ值可以作为其他物理力学指标的代表值，可以综合评定砂类土隧道围岩的稳定性，并给出了用SBQ值描述各物理力学指标的定量表达式。

Abstract

The shear strength and unit weight have much relations with the stability of sandy soil surrounding rock of tunnel. From the factors influencing the stability of sandy soil surrounding rock and classification of surrounding rock

the feasibility that using sandy soil surrounding rock basic quality index (SBQ) as a synthetic factors to evaluate the stability of sandy soil surrounding rock of tunnel is explored. It is found that the SBQ can be a representative value of other physico-mechanical indexes. The quantitative expressions of other physico-mechanical indexes and the SBQ are presented.

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Related Institution

School of Architecture and Environment, Sichuan University

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechancis, Chinese Academy of Sciences

Geotechnical & Structural Engineering Research Center, Shandong University

State Key Laboratory of Geomechanics and Geotechnical Engineering，Institute of Rock and Soil Mechanics，Chinese Academy of Sciences

Central Southern China Electric Power Design Institute of China Power Engineering Consulting Group Corporation

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