|本期目录/Table of Contents|

[1]丁海萍,唐钱龙,邹洋,等.基于Hoek-Brown准则的渗流作用下隧道掌子面支护力上限解*[J].中国安全生产科学技术,2024,20(12):105-111.[doi:10.11731/j.issn.1673-193x.2024.12.014]
　DING Haiping,TANG Qianlong,ZOU Yang,et al.Upper-bound solution for support force of tunnel face under seepage conditions based on Hoek-Brown criterion[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2024,20(12):105-111.[doi:10.11731/j.issn.1673-193x.2024.12.014]
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基于Hoek-Brown准则的渗流作用下隧道掌子面支护力上限解*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
20
期数:
2024年12期
页码:
105-111
栏目:
职业安全卫生管理与技术
出版日期:
2024-12-30

文章信息/Info

Title:
Upper-bound solution for support force of tunnel face under seepage conditions based on Hoek-Brown criterion
文章编号:
1673-193X(2024)-12-0105-07
作者:
丁海萍; 唐钱龙; 邹洋; 杨玉山
(1.江西交通职业技术学院，江西 南昌 330013；
2.中南大学 土木工程学院，湖南 长沙 410075；
3.中国石油大学（北京）克拉玛依校区 工学院，新疆 克拉玛依 834000)
Author(s):
DING Haiping;  TANG Qianlong;  ZOU Yang;  YANG Yushan
(1.Jiangxi Vocational and Technical College of Communications,Nanchang Jiangxi 330013,China;
2.School of Civil Engineering,Central South University,Changsha Hunan 410075,China;
3.College of Engineering,China University of Petroleum (Beijing) at Karamay,Karamay Xinjiang 834000,China)
关键词:
隧道掌子面; 渗流; 临界支护力; 上限解; 掌子面稳定性
Keywords:
tunnel face;  seepage;  critical support force;  upper-bound solution;  face stability
分类号:
X947
DOI:
10.11731/j.issn.1673-193x.2024.12.014
文献标志码:
A
摘要:
为有效估计渗流作用下隧道掌子面的临界支护力，基于Hoek-Brown强度准则和复合切线方法提出饱和渗流岩质地层中隧道掌子面稳定性评估的多锥失稳机制。在极限分析上限定理的框架内，推导失稳块体和渗流力的外力功率以及岩体阻滑的内能耗散率，通过功能平衡方程求解得到临界支护力的上限解析解。研究结果表明：复合切线法相较于传统广义切线法具备更高的计算精度；地下水对掌子面稳定性有显著影响，是隧道安全施工不可忽视的重要影响因素；详细评估不同参数对掌子面稳定性的影响并给出稳定性响应图表。研究结果可为富水区岩质隧道掌子面稳定性的评估提供参考。
Abstract:
To effectively estimate the critical support force of tunnel face under seepage conditions,a multi-cone instability mechanism was proposed for assessing the stability of tunnel faces in saturated seepage rock stratum based on the Hoek-Brown strength criterion and the composite tangential method.Within the framework of the upper-bound theorem of limit analysis,the external work rate of the failure block and seepage forces,as well as the internal energy dissipation rate of rock resistance,were derived,and the upper-bound analytical solution of the critical support forcewas obtained by solving the work rate balance equation.The results show that the composite tangential method provides higher computational accuracy compared to the traditional generalized tangential method.The groundwater has a significant impact on tunnel face stability,and it is a crucial factor for the safety of tunnel construction.The influence of different parameters on the stability of tunnel face is evaluated in detail,and the stability response chart is given.The research results can provide a reference for the evaluation on the stability of rock tunnel face in water-rich areas.

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备注/Memo

备注/Memo:
收稿日期： 2024-07-23
* 基金项目： 国家自然科学基金项目（51878670）；江西省交通运输厅科技项目（2023H0020）
作者简介： 丁海萍，硕士，副教授，主要研究方向为土木工程相关的教学与科研工作。
通信作者： 唐钱龙，博士，高级工程师，主要研究方向为桥梁与隧道工程相关的教学与科研工作。
更新日期/Last Update: 2024-12-28