高原山岭隧道围岩分级方法适宜性评价及初步优化思路  

Suitability Evaluation and Preliminary Optimization of Surrounding Rock Classification Method for Plateau Mountain Tunnel

作　　者：李曙光 申艳军 谢江胜[1] 仲维玲[1] 刘博 LI Shuguang;SHEN Yanjun;XIE Jiangsheng;ZHONG Weiling;LIU Bo(China Railway 20th Bureau Group Co.Ltd.,Xi’an Shaanxi 710016,China;College of Geology Engineering and Geomatics,Chang’an University,Xi’an Shaanxi 710064,China;College of Geology and Environment,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China)

机构地区：[1]中铁二十局集团有限公司,陕西西安710016 [2]长安大学地质工程与测绘学院,陕西西安710064 [3]西安科技大学地质与环境学院,陕西西安710054

出　　处：《铁道建筑技术》2023年第8期33-35,58,共4页Railway Construction Technology

基　　金：陕西省自然科学基础研究计划项目(2022JQ-563);中国铁建股份有限公司科技研究开发计划项目(2021-B10)。

摘　　要：为确保高原山岭隧道设计、施工方法安全合理,需开展针对该区域隧道围岩质量评价方法专项研究。本文对我国部分已建或在建高原山岭隧道工程地质资料进行整理,对高原山岭隧道禀赋地质环境特征与典型特点进行总结,具体表现为大埋深导致的超高地应力与大温差形成的围岩损伤;据此开展国内外常用围岩分级方法在高原山岭隧道围岩质量评定适宜性评价,并结合高原山岭隧道典型特点,考虑将隧道地温指标纳入评价体系,以国标BQ法为主要优化对象,提出高原山岭隧道分区段围岩分级优化思路。该研究对于科学评价高原山岭隧道围岩质量具有前瞻性指导价值。To ensure the safety and rationality of the design and construction methods of plateau mountain tunnels,it is necessary to carry out special research on the quality evaluation methods of tunnel surrounding rock in this area.On the basis of sorting out the engineering geological data of some plateau mountain tunnels built or under construction in China,this paper summarizes the endowment geological environment characteristics and typical characteristics of plateau mountain tunnels,which are as follows:ultra-high ground stress caused by large buried depth and surrounding rock damage caused by large temperature difference;based on this,the suitability evaluation of surrounding rock classification methods commonly used at home and abroad in the surrounding rock quality of plateau mountain tunnels is carried out.Combined with the typical characteristics of plateau mountain tunnels,the tunnel ground temperature index is considered to be included in the evaluation system,and the national standard BQ method is taken as the main optimization object to propose an optimization idea for the classification of surrounding rocks in different sections of plateau mountain tunnels.This study has forward-looking guiding value for scientific evaluation of surrounding rock quality of plateau mountain tunnel.

关 键 词：高原山岭隧道 围岩分级 适宜性 地温指标 优化思路 

分 类 号：U452.12[建筑科学—桥梁与隧道工程] P642[交通运输工程—道路与铁道工程]