[1]刘伟民,窦斌强,陈 智. FRP锚杆在石膏岩隧道中的支护效果研究[J].湖北工业大学学报,2023,(4):92-96.
 LIU Weimin,DOU Binqiang,CHEN Zhi. Study on Supporting Effect of FRP Bolt in Gypsum Rock Tunnel[J].,2023,(4):92-96.
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 FRP锚杆在石膏岩隧道中的支护效果研究()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2023年第4期
页码:
92-96
栏目:
湖北工业大学学报
出版日期:
2023-08-30

文章信息/Info

Title:
 Study on Supporting Effect of FRP Bolt in Gypsum Rock Tunnel
文章编号:
1003-4684(2023)04-0092-05
作者:
 刘伟民1 窦斌强2 陈 智1
 1 湖北工业大学土木建筑与环境学院, 湖北 武汉 430068;
 2 山西省交通规划勘察设计院有限公司, 山西 太原 030012
Author(s):
 LIU Weimin1 DOU Binqiang2 CHEN Zhi1
 1 School of Civil Engin.,Architecture and Environment,Hubei Univ.of Tech.,Wuhan 430068,China;
 2 Shanxi Province Communications Planning Surveying and Designing Institute Co., Ltd., Taiyuan 030012,China
关键词:
 石膏岩 FRP锚杆 公路隧道 支护效果
Keywords:
 gypsum rock FRP bolt highway tunnel supporting effect
分类号:
TU94
文献标志码:
A
摘要:
 当前穿越石膏层的隧道工程越来越多,因石膏岩具有遇水膨胀、腐蚀性等危害,传统钢锚杆支护效果不理想。FRP锚杆具有轻质高强、耐腐蚀、工艺性优良等特点,将其应用于石膏岩隧道中能够克服钢锚杆劣势。以某穿越石膏层公路隧道为依托,重点研究了FRP锚杆与传统锚杆在石膏岩隧道中的支护效果,从围岩变形、锚杆受力情况、塑性区分布、初期支护应力分布、岩体安全度等方面,对其支护效果进行对比。研究结果表明:在遇水膨胀的石膏岩中,FRP锚杆在控制围岩变形、改善塑性区分布、减少应力集中等方面优于传统锚杆,尤其是在长期运营条件下,耐腐蚀的FRP锚杆可代替传统钢锚杆作为新型支护材料应用于石膏层隧洞支护中。
Abstract:
 At present, there are more and more tunnel projects through gypsum layer, but the traditional steel bolt support effect is not ideal because gypsum rock has the harm of water swelling and corrosiveness. FRP bolt has the characteristics of light weight, high strength, corrosion resistance and excellent technology, and can overcome the disadvantages of steel bolt when it is used in gypsum rock tunnel. In this paper, based on a through the plaster layer of highway tunnel, the research is mainly focused on the traditional FRP bolt and anchor in the gypsum rock tunnel supporting effect, from the surrounding rock deformation, bolt stress distribution, plastic zone distribution, stress distribution, degree of safety of rock mass, the primary support, etc. Comparing the supporting effect, the research results show that in the expansion of the gypsum rock under the influence of water, FRP bolt is better than traditional bolt in controlling surrounding rock deformation, improving plastic zone distribution and reducing stress concentration. Especially in long-term operation conditions, corrosion-resistant FRP bolt can replace traditional steel bolt as a new supporting material for gypsum tunnel support.

参考文献/References:

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备注/Memo

备注/Memo:
 [收稿日期] 2021-12-02
[基金项目] 国家自然科学基金(51808203)
[第一作者] 刘伟民(1996 -),男,山东淄博人,湖北工业大学硕士研究生,研究方向为岩土力学。
[通信作者] 陈 智(1988-),男, 湖北黄冈人,湖北工业大学副教授,研究方向为岩土力学。
更新日期/Last Update: 2023-08-26