科技和产业2024，Vol.24Issue(3) ：228-233.

基于FLAC3D隧道初期支护方案研究——以青医西院区站隧道为例

Study on Initial Tunnel Support Scheme Based on FLAC3D:Taking the West Campus Station Tunnel of Qingyi Hospital as an Example

邓文科 张全文 曲家新 由洋旭 王刚 贺鹏 高虎
科技和产业2024，Vol.24Issue(3) ：228-233.
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基于FLAC3D隧道初期支护方案研究——以青医西院区站隧道为例

Study on Initial Tunnel Support Scheme Based on FLAC3D:Taking the West Campus Station Tunnel of Qingyi Hospital as an Example

邓文科 1张全文 1曲家新 1由洋旭 1王刚 2贺鹏 3高虎3
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作者信息

  • 1. 中交一航局城市交通工程有限公司,天津 300457
  • 2. 福建工程学院土木工程学院,福州 350118
  • 3. 山东科技大学土木工程与建筑学院,山东 青岛 266590
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摘要

利用FLAC3D软件建立两种不同初期支护方式作用下的隧道模型,对隧道的开挖与支护过程进行模拟,分析围岩与支护结构的受力和变形,对比其应力分布和围岩位移情况,选出更为合理的支护方案.研究发现,预应力锚杆能够及时为隧道围岩提供支护作用,不存在支护时效的问题,而普通水泥砂浆锚杆需等地层产生变位后才能发挥作用.

Abstract

FLAC3D software was used to establish two tunnel models under different initial support actions.The excavation and support process of the tunnel were simulated,the stress and deformation of surrounding rock and support structure were analyzed,and a more reasonable support scheme was selected under different stress distribution and displacement of surrounding rock.The results show that the prestressed bolt can provide timely support for the surrounding rock of the tunnel without the problem of support aging,while the ordinary cement mortar bolt can play its role only after the formation changes.

关键词

FLAC3D/初期支护/围岩应力/围岩位移

Key words

FLAC3D/preliminary bracing/surrounding rock stress/surrounding rock displacement

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出版年

2024
科技和产业
中国技术经济学会

科技和产业

影响因子：0.361
ISSN：1671-1807
参考文献量17
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