中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2021, Vol. 40 ›› Issue (11): 82-87.DOI: 10.3969/j.issn.1674-0696.2021.11.12

• 交通基础设施工程 • 上一篇    

基于正态云理论的软弱隧道围岩分级

梁辉如1,王永东2,彭浩2,刘俊锋1,燕新2   

  1. (1. 广东省路桥建设发展有限公司,广东 广州 510507; 2. 长安大学 公路学院,陕西 西安 710064)
  • 收稿日期:2019-11-01 修回日期:2021-07-20 发布日期:2021-11-24
  • 作者简介:梁辉如(1971—),男,福建上杭人,高级工程师,主要从事公路交通方面研究。E-mail: mzdhgs@163.com 通信作者:王永东(1974—),男,湖北鄂州人,副教授,主要从事隧道工程方面研究。E-mail:wydchdgl@163.com

Classification of Soft Surrounding Rock of Tunnel Based on Normal Cloud Theory

LIANG Huiru1, WANG Yongdong2, PENG Hao2, LIU Junfeng1, YAN Xin2   

  1. (1.Guangdong Road & Bridge Construction Development Co., Ltd., Guangzhou 510507, Guangdong, China; 2. School of Highway, Chang’an University, Xi’an 710064, Shaanxi, China)
  • Received:2019-11-01 Revised:2021-07-20 Published:2021-11-24

摘要: 选取针对软弱隧道围岩的4个指标——单轴抗压强度Rc、完整性系数Kv、黏聚力c及软化系数Kf,构建了基于正态云理论的软弱隧道围岩分级体系;用隧道工程实例对软弱隧道围岩分级体系进行了验证计算,并以实际开挖围岩等级作为参照标准,对比分析了分别用正态云法与BQ法得到的围岩分级结果。结果表明:与BQ法相比,正态云法得到的围岩等级与实际开挖围岩等级的一致性更高;验证了基于正态云理论的软弱隧道围岩分级体系的可行性;正态云法围岩分级体系可作为一种新的软弱围岩分级判定方法。

关键词: 隧道工程;软弱围岩分级;正态云理论

Abstract: The normal cloud theory was applied to the classification of soft surrounding rock of tunnel.删 Four indexes for soft rock including uniaxial compressive strength Rc, integrity coefficient Kv, cohesion c and softening coefficient Kf were selected. The classification system of soft surrounding rock of tunnel based on normal cloud theory was constructed and verified with engineering cases. Taking the actual excavation surrounding rock grade as the reference standard, the results of surrounding rock classification obtained by normal cloud method and BQ method were compared and analyzed. The results show that the surrounding rock grade obtained by normal cloud method is more consistent with the actual excavation surrounding rock grade than that obtained by BQ method, which verifies the feasibility of surrounding rock classification system of soft tunnel based on normal cloud theory. The normal cloud method surrounding rock classification system can be used as a new classification method for soft surrounding rock of tunnel.

Key words: tunnel engineering; classification of soft surrounding rock; normal cloud theory

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