[1]叶 堃,丁浩江,岳志勤.玉京山隧道巨型溶洞地质特征与稳定性评价[J].高速铁路技术,2023,14(01):81-85，90.[doi:10.12098/j.issn.1674-8247.2023.01.015]
　YE Kun,DING Haojiang,YUE Zhiqin.Geological Characteristics and Stability Evaluation of Giant Karst Cave Affecting Yujingshan Tunnel[J].HIGH SPEED RAILWAY TECHNOLOGY,2023,14(01):81-85，90.[doi:10.12098/j.issn.1674-8247.2023.01.015]
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玉京山隧道巨型溶洞地质特征与稳定性评价()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
14卷
期数:
2023年01期
页码:
81-85，90
栏目:
出版日期:
2023-03-10

文章信息/Info

Title:
Geological Characteristics and Stability Evaluation of Giant Karst Cave Affecting Yujingshan Tunnel
文章编号:
1674-8247（2023）01-0081-05
作者:
叶 堃; 丁浩江; 岳志勤
中铁二院工程集团有限责任公司，成都610031
Author(s):
YE Kun; DING Haojiang; YUE Zhiqin
China Railway Eryuan Engineering Group Co. ，Ltd. ，Chengdu 610031 ，China
关键词:
隧道工程;  巨型溶洞;  工程地质特征;  分析评价
Keywords:
tunneling; giant karst cave; geological characteristics; analysis and evaluation
分类号:
P642.25
DOI:
10.12098/j.issn.1674-8247.2023.01.015
文献标志码:
A
摘要:
成贵高速铁路玉京山隧道施工中遭遇高速铁路建设史上的最大溶洞，溶洞下部发育大型暗河，洞内充填物厚度大，成分复杂，工程地质环境复杂，处理难度大、施工安全危险性高。现场采用地质调查及测绘、三维激光扫描、水文观测、物探、钻探、孔内测试、取样试验等综合勘察手段，查明了巨型溶洞的形态特征、水文地质特征和充填物工程地质特征，对洞壁稳定性进行了分析和评价，预测了洞顶塌落高度及稳定性，提出了“暗河改道、溶洞回填、桥梁跨越”总体处理措施建议，为合理确定施工整治方案提供了详实的地质依据。研究成果可为山区高速铁路岩溶勘察提供重要参考。
Abstract:
During the construction of the Yujingshan Tunnel of Chengdu-Guiyang High-speed Railway，the largest karst cave in the history of high-speed railway construction was encountered，where the geological environment is complicat-ed，with large underground rivers developed underneath and thick filling materials of complex composition inside. The treat-ment is difficult，and the construction safety risk is high. Comprehensive investigation methods including geological survey and mapping，3D laser scanning，hydrological observation，geophysical prospecting，drilling，in-hole testing，and sam-pling tests were applied on-site to find out the morphological characteristics，hydrogeological characteristics，and geological characteristics of fillings in this giant karst cave，analyze and evaluate the stability of cave walls，and predict the collapsed height and stability of the roof. The overall treatment measure of“ diverting underground rivers，backfilling karst cave，and crossing with bridges ”was put forward，which provided a detailed geological basis for reasonably determining the construc-tion treatment scheme. The research results can provide an important reference for investigating the karsts of high-speed rail-ways in mountainous areas.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2021-11-18
作者简介：叶堃（1981-），男，高级工程师。
更新日期/Last Update: 2023-03-10