Value limits of clayey surrounding rock classification indices

CHEN Wei-tao; WANG Ming-nian; WEI Long-hai; WANG Yu-suo

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Value limits of clayey surrounding rock classification indices

更新时间：2026-06-25

- Value limits of clayey surrounding rock classification indices
- Vol. 29, Issue 9, (2008)
- 作者机构：
  
  西南交通大学地下工程系,成都,610031
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU411
- Online First：03 August 2013，
  
  Published：2008
- 稿件说明：
移动端阅览
CHEN Wei-tao, WANG Ming-nian, WEI Long-hai, et al. Value limits of clayey surrounding rock classification indices[J]. 2008, 29(9).
DOI：

CHEN Wei-tao, WANG Ming-nian, WEI Long-hai, et al. Value limits of clayey surrounding rock classification indices[J]. 2008, 29(9). DOI：

摘要

在分析了确定黏质土围岩分级指标界限值的依据基础上，通过分析已有研究成果资料、室内试验成果及长序列黏质土围岩统计数据，确定了设计阶段黏质土围岩的分级指标液性指数、天然密度、塑性指数分段的各段界限值。研究结果表明：依据分级指标随强度值比的变化情况确定其界限值是合理的；当隧道的埋深一定时，统计分析和室内试验都得到了强度值比随液性指数的增大逐渐减小的结论；液性指数较大时，天然密度的增大对强度值比的影响不明显；液性指数分段处界限值为0，0.25，0.5，天然密度分段处界限值为1.6，2.0 g/cm3，分级指标塑性指数分段处界限值为18。

Abstract

Through ascertaining the rule which is employed to obtain the value limits of clayey surrounding rock classification indices

value limits of liquid index

natural density and plastic index in design phase are made certain based on analyzing existing research results

a long sequence test data of clayey surrounding rock and test data. The research results show that it is reasonable to ascertain the value limits according to the different conditions of classification indices as intensity ratio changing. While the depth of the tunnel is constant

consistent result

which can be received through statistic analysis and testing

is that intensity ratio decreases with liquid index increasing. If the value of liquid index is larger

the influence of natural density increasing on intensity ratio is inapparent. The value limits of liquid indices are 0

0.25

0.5; and 1.6g/cm3

2.0g/cm3 for natural density; 18 for plastic index

respectively.

关键词

Keywords

references

Views

1351

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

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

Test research on compression modulus of sandy soil tunnel surrounding rock

Test research on internal friction coefficient of sandy soil tunnel surrounding rock

Stduy on index selection of surrounding rock classification for cohesive soil tunnel

Unified quantitative grading method for deconstructing blockiness of tunnel blocks in jointed rock masses and its application

Related Author

LI Yu-wen

WANG Yu-suo

WANG Ming-nian

WEI Long-hai

TONG Jian-jun

WANG Ming-nian

WANG Yu-suo

WEI Long-hai

Related Institution

School of Civil Engineering, Southwest Jiaotong University

Planning Investigation and Design of Highway, Sichuan Provincial Department of Communications

School of Civil Engineering, Southwest Jiaotong University

Highway Survey&Design Research Institute, Sichuan Provincial Departaent of Communications

College of Civil Engineering and Architecture, Shandong University of Science and Technology

AI问答

⁰