土工基础

土工基础 ›› 2025, Vol. 39 ›› Issue (3): 424-427.

• 专题论述 • 上一篇    下一篇

岩体基本质量指标BQ值简化计算方法探讨

王振中1，张 立2，孙 震1，王 磊3，赵卿政4，朱泽奇5   

  1. （1.中铁发展投资有限公司，山东青岛 266034；2.山西黎霍高速公路有限公司，山西长治 046000；3.中铁隧道股份有限公司，郑州 450001；4.中铁三局集团第六工程有限公司，山西晋中 030600；5.中国科学院武汉岩土力学研究所，武汉 430071）
  • 收稿日期:2023-06-04 修回日期:2023-06-14 出版日期:2025-06-30 发布日期:2025-08-05
  • 作者简介:王振中（1972-），男，高级工程师，研究方向为公路工程施工管理及技术。

Discussions on Simplified Estimation Method of Basic Quality Index BQ Value of Rock Mass

WANG Zhenzhong1, ZHANG Li2, SUN Zhen1, WANG Lei3, ZHAO Qingzheng4， ZHU Zeqi5   

  1. (1.China Railway Development & Investment Co. Ltd., Qingdao 266034；2.Shanxi Lihuo Expressway Co. Ltd, Changzhi 046000；3.China Railway Tunnel Stock Co. Ltd, Zhengzhou 450001；4.China Railway Third Bureau Group No.6 Engineering Co. Ltd., Jinzhong 030600；5.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071)
  • Received:2023-06-04 Revised:2023-06-14 Online:2025-06-30 Published:2025-08-05

摘要： 在依据BQ值进行岩体质量分级时，往往需要进行大量的现场与室内的测试工作，对于长距离岩石隧道，则相关工作更加繁琐困难。以青兰国家高速公路长治至延安联络线（G2211）的山西境内的太岳山隧道为例，基于太岳山岩石隧道已有的岩体试验测试数据，通过研究岩石饱和单轴抗压强度Rc和岩体完整性指数Kv之间的相互关系，提出了一种BQ值的简化计算方法。将该方法与原有BQ值计算方法进行对比，发现二者基本吻合，说明BQ值的简化计算方法工程适用性较好，同时还可以大大减少现场的测试工作量，降低人为主观经验的影响，具有较好的推广应用价值。

关键词: 岩体分级, BQ值, 计算方法, 饱和单轴抗压强度, 岩体完整性指数

Abstract: In the classification of rock mass quality based on BQ value, a lot of in-situ and laboratory testing work are often required. For long-distance rock tunnels, the related work is more complicated and difficult. The Taiyueshan Tunnel in Shanxi Province on the Changzhi Yan’an connecting line (G2211) of the Qinglan National Expressway is presented in this paper. Based on the existing rock mass test data of the Taiyueshan Rock Tunnel, a simplified calculation method of BQ value is proposed by studying the relationship between rock saturated uniaxial compressive strength Rc and rock integrity index Kv. Comparing this method with the original BQ value estimation method, it is found that the two methods are basically consistent. The simplified estimation method of BQ value has a good engineering applicability and can greatly reduce the in-situ test workload and the influence of subjective experience.

Key words: Rock Mass Classification, BQ Value, Estimation method, Saturated Uniaxial Compressive Strength, Rock Mass Integrity Index

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