[1]朱艳峰,张雪松,王和平.Hoek-Brown强度准则的非圆形隧道塑性区半径预测[J].西安建筑科技大学学报(自然科学版),2020,52(02):200-206.[doi:10.15986/j.1006-7930.2020.02.007]
　ZHU Yanfeng,ZHANG Xuesong,WANG Heping.Application of Hoek-Brown strength criterion in stability analysis of non-circular tunnel[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2020,52(02):200-206.[doi:10.15986/j.1006-7930.2020.02.007]
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Hoek-Brown强度准则的非圆形隧道塑性区半径预测()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
52
期数:
2020年02期
页码:
200-206
栏目:
出版日期:
2020-04-25

文章信息/Info

Title:
Application of Hoek-Brown strength criterion in stability analysis of non-circular tunnel
文章编号:
1006-7930(2020)02-0200-07
作者:
朱艳峰1; 张雪松1; 王和平2
(1.广州番禺职业技术学院 建筑工程学院,广东 广州 511483; 2.广东工业大学 土木与交通工程学院,广东 广州 51006)
Author(s):
ZHU Yanfeng1; ZHANG Xuesong1; WANG Heping2
(1.College of Civil Engineering and Architecture,Guangzhou Panyu Polytechnic, Guangzhou 511483, China; 2.Faculty of Civil and Transportation Engineering,Guangdong University of Technology, Guangzhou 51006, China)
关键词:
Hoek-Brown强度准则;  等代圆;  应变软化模型;  声波探测;  围岩稳定性
Keywords:
Hoek-Brown strength criterion;  equivalent circle method;  strain-softening model;  ultrasonic testing;  stability of surrounding rock
分类号:
O346
DOI:
10.15986/j.1006-7930.2020.02.007
文献标志码:
A
摘要:
应用Hoek-Brown强度准则判断围岩塑性区具有很多优势,但应用起来繁琐,因此提出将Hoek-Brown强度准则的应变软化模型应用于隧道塑性区分析中,推导得到非圆形隧道的塑性区半径表达式.以重庆兴隆隧道为依托,采取四种不同的等代圆方法计算塑性区半径,并与现场声波探测结果得到的松动圈半径进行对比,发现采用Hoek-Brown应变软化模型分析围岩塑性区时计算得到结果与现场实测结果最为接近,验证了运用考虑应变软化的Hoek-Brown强度准则计算围岩塑性区半径的方法是可行的
Abstract:
Applying Hoek-Brown strength criterion to judge the plastic zone of surrounding rock has many advantages, but it is cumbersome to apply. Therefore, the strain softening model of Hoek-Brown strength criterion is applied to the analysis of tunnel plastic zone, andan etpressionthe radius of plastic zone of non-circular tunnel is derived. Based on the Chongqing Xinglong Tunnel, four different equal-circle methods were used to calculate the radius of the plastic zone, and compared with the radius of the loose circle obtained by the on-site acoustic wave detection. It was found that the Hoek-Brown strain softening model was used to analyze the plastic zone of the surrounding rock. The obtained results are the closest to the field test results. It is feasible to calculate the radius of the plastic zone of the surrounding rock by using the Hoek-Brown strength criterion considering strain softening

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-07-28 修改稿日期:2020-03-25
基金项目:广东省教育厅科研平台和科研基金项目(2017GKTSCX046); 广东省教育厅科研平台和科研基金项目(2018GkQNCX063)
第一作者:朱艳峰(1968-),女,博士,副教授,主要从事材料的力学性能研究.E-mail:1969789047@qq.com
更新日期/Last Update: 2020-04-25