| 绩黄高速公路佛岭隧道围岩现场快速分级方法研究 |
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| 引用本文： | 李文桦,刘保国,刘开云,陈岩.绩黄高速公路佛岭隧道围岩现场快速分级方法研究[J].路基工程,2012,0(1):59-61. |
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| 作者姓名： | 李文桦 刘保国 刘开云 陈岩 |
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| 作者单位： | 1.中国建筑科学研究院地基基础研究所，北京 100013 |
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| 摘 要： | 以佛岭隧道工程为背景，应用回归分析理论建立单轴抗压强度和回弹强度的关系式，同时将难以量测的体积节理数、地应力等也用经验性的计算式和方法进行判断，最后依据现行规范中的方法进行围岩分级。实践证明，此种方法不仅具有现场操作简便、快速的优点，且可与勘察设计阶段的分级结果进行比较，用来优化设计参数和调整施工方法，为隧道围岩分级提供了一种新的途径。
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| 关 键 词： | 公路隧道 围岩分级 现场 回弹强度 |
| 收稿时间： | 2019-11-11 |
On-Site Fast Grading of Surrounding Rock in Foling Tunnel of Jixi-Huangshan Expressway |
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| Authors: | LI Wen-hua LIU Bao-guo LIU Kai-yun CHEN Yan |
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| Institution: | 1.Institute of Foundation Engineering,China Academy of Building Research,Beijing 100013,China; 2.School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China; 3.AVIC Geotechnical Engineering Institute,Beijing 100098,China) |
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| Abstract: | Taking Foling Tunnel Project as the background,the relationship between uniaxial compressive strength and rebound strength is established by linear regression analysis technique;at the same time,volumetric joint and geostress which are hard to be measured are determined by experiential formula and method;then surrounding rock grading is carried out in accordance with the existing specifications.The practice has proved that this method is of simple and rapid operation,and optimizes the design parameters and adjusts construction method through comparing to the grading in the phase of survey and design.It offers a new grading way for tunnel surrounding rock. |
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| Keywords: | highway tunnel surrounding rock grading site rebound strength |
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