高山峡谷地区隧道洞口适宜性评价与应用研究  

Study on Suitability Evaluation and Application of Tunnel Portal in Alpine Canyon Area

作　　者：刘伟[1,2] 许广春 石崎材 宋树宝 LIU Wei;XU Guangchun;SHI Qicai;SONG Shubao(Southwest Jiaotong University,Chengdu,Sichuan 610000,China;Sichuan-Tibet Railway Co.Ltd,Chengdu,Sichuan 610000,China;China Railway Design Corporation,Tianjin 300251,China;China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]西南交通大学,成都610000 [2]川藏铁路有限公司,成都610000 [3]中国铁路设计集团有限公司,天津300251 [4]中国铁道科学研究院集团有限公司,北京100081

出　　处：《铁道工程学报》2025年第3期60-64,74,共6页Journal of Railway Engineering Society

摘　　要：研究目的:青藏高原高山峡谷地区隧道洞口选址面临着极为复杂的地质和环境挑战,需规避不良地质灾害和洪水位,选择围岩稳定的位置,并考虑施工难度,以降低工程风险及成本。本文基于现场地质勘察、无人机测绘等综合勘察技术,结合模糊综合评判法和修正灰色聚类分析法构建隧道洞口选址综合评价方法,利用量化评价方法为隧道洞口的选址提供科学依据。研究结论:(1)考虑岩性、坡度、坡面走向、高程、与山脊线距离、仰坡危岩体规模、与断层距离、与现有公路距离、与对岸相应位置间最短距离9个指标建立评价体系;(2)结合现场地质勘察、专家系统和洞口适宜性定量评价建立隧道洞口选址综合评价方法;(3)相较于单一方法,综合考虑模糊综合评判法和修正灰色聚类分析法的隧道洞口选址评价方法更能反映实际工程特征,提出切实可行的洞口选址建议;(4)本研究成果可应用于山区公路隧道建设。Research purposes:The selection of tunnel portals in the alpine gorge region of the Qinghai-Tibet Plateau presents significant geological and environmental challenges.The tunnel entrance must also avoid geological disasters and flooding,select a stable location in the surrounding rock,and consider construction difficulty to reduce project risk and cost.This paper proposes quantitative evaluation indicators for the location of tunnel portals based on on-site geological surveys and UAV surveying and mapping.The proposed method combines a fuzzy comprehensive evaluation and modified grey clustering analysis to construct a comprehensive evaluation method.The purpose is to provide a scientific basis for the location of tunnel portals in this area.Research conclusions:(1)An evaluation system is established based on factors such as lithology,slope,slope direction,elevation,distance from the ridge line,scale of the dangerous rock mass on the slope,distance from the fault,distance from the existing highway,and shortest distance from the corresponding position on the other side.(2)A comprehensive evaluation method for tunnel portal location is established by combining geological surveys,expert systems,and quantitative evaluation.(3)Compared to single methods,the evaluation method that considers fuzzy comprehensive evaluation and modified grey clustering analysis better reflects actual engineering characteristics and provides feasible suggestions for tunnel portal location.(4)The research results can be applied to the construction of mountain highway tunnels.

关 键 词：隧道洞口选址 适宜性评价 模糊综合评判法 修正灰色聚类分析法 

分 类 号：U452[建筑科学—桥梁与隧道工程]