[1]甘光元.某铁路隧道石膏岩工程地质特性及对策措施研究[J].高速铁路技术,2021,12(06):61-64.[doi:10.12098/j.issn.1674-8247.2021.06.012]
　GAN Guangyuan.A Study on Geological Characteristics and Countermeasures of Gypsum Rock in A Railway Tunnel[J].HIGH SPEED RAILWAY TECHNOLOGY,2021,12(06):61-64.[doi:10.12098/j.issn.1674-8247.2021.06.012]
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某铁路隧道石膏岩工程地质特性及对策措施研究()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
12卷
期数:
2021年06期
页码:
61-64
栏目:
出版日期:
2021-12-28

文章信息/Info

Title:
A Study on Geological Characteristics and Countermeasures of Gypsum Rock in A Railway Tunnel
文章编号:
1674—8247(2021)06—0061-04
作者:
甘光元
中铁二院工程集团有限责任公司, 成都 610031
Author(s):
GAN Guangyuan
China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China
关键词:
隧道|硬石膏|膨胀性|侵蚀性|措施建议
Keywords:
tunnel|anhydrite|expansibility|erosiveness|recommended measures
分类号:
U452.1+1
DOI:
10.12098/j.issn.1674-8247.2021.06.012
文献标志码:
A
摘要:
芒康山隧道地层中含石膏岩，其主要成分为硬石膏。硬石膏的膨胀性及侵蚀性，可导致隧道底鼓、围岩侵限、结构破坏等，影响混凝土结构耐久性；硬石膏遇水软化，导致原有支护体系应力改变，引起隧道底部失稳下沉，隧道顶部松动垮塌，边墙开裂，破坏衬砌结构，影响结构安全性。针对此问题，本文研究了硬石膏在芒康山隧道的分布特征，分析可能对隧道建设产生的危害，并为施工提供处置措施及建议。
Abstract:
The strata of Mangkangshan Tunnel contain gypsum rock, which is mainly composed of anhydrite, whose expansibility and erosion can cause tunnel floor heave, rock erosion, structural failure and so on, undermining the durability of concrete structure; and which will soften when encountering water, resulting in the change of the stress of the original support system, causing the instability and subsidence of the tunnel floor, the looseness and collapse of the tunnel roof, the cracking of the side wall, damaging the lining structure and affecting the structural safety. To solve this problem, this paper studied the distribution characteristics of anhydrite in Mangkangshan Tunnel, analyzed the possible hazards to tunnel construction, and put forward the measures and recommendations for construction.

备注/Memo

备注/Memo:
作者简介:甘光元(1982-),男,高级工程师。引文格式:甘光元. 某铁路隧道石膏岩工程地质特性及对策措施研究[J]. 高速铁路技术,2021,12(6):61-64.GAN Guangyuan. A Study on Geological Characteristics and Countermeasures of Gypsum Rock in A Railway Tunnel[J]. High Speed Railway Technology, 2021, 12(6):61-64.
更新日期/Last Update: 2021-12-28