[1]陶文斌,陈铁林,唐彬.水平主应力对锚杆锚固区力学特征影响规律研究[J].哈尔滨工程大学学报,2019,40(06):1102-1108.[doi:10.11990/jheu.201804114]
 TAO Wenbin,CHEN Tielin,TANG Bin.Response law of horizontal principal stress to the mechanical characteristics of anchorage zones[J].hebgcdxxb,2019,40(06):1102-1108.[doi:10.11990/jheu.201804114]
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水平主应力对锚杆锚固区力学特征影响规律研究(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
40
期数:
2019年06期
页码:
1102-1108
栏目:
出版日期:
2019-06-05

文章信息/Info

Title:
Response law of horizontal principal stress to the mechanical characteristics of anchorage zones
作者:
陶文斌1 陈铁林1 唐彬2
1. 北京交通大学 土木建筑工程学院, 北京 100044;
2. 安徽理工大学 土木建筑学院, 安徽 淮南 232001
Author(s):
TAO Wenbin1 CHEN Tielin1 TANG Bin2
1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
关键词:
水平主应力掘进方向围岩应力锚固系统锚杆轴力锚杆支护支护优化围岩稳定
分类号:
TD353
DOI:
10.11990/jheu.201804114
文献标志码:
A
摘要:
针对不同水平主应力条件下巷道锚固支护围岩效果不理想的问题,本文采用数值模拟、理论分析和现场试验综合研究方法,研究表明:最大水平主应力方向与巷道轴向夹角在0°~30°时,巷道锚固区围岩应力缓和,当夹角大于30°时,随着夹角增大,最大水平主应力向顶底板转移,顶、底板高应力区范围和应力集中程度显著增大。锚杆自由段轴力相等,锚固段轴力呈负指数衰减,整体分布曲线呈“乀”字状。顶部锚杆轴力与夹角呈正相关,夹角在0°~30°、70°~90°范围顶板锚杆轴力增大趋势平缓,夹角在30°~60°范围增大趋势显著;帮部锚杆轴力与夹角呈负相关。随着最大水平主应力与巷道轴线夹角的增大,巷道断面锚杆轴力分布曲线依次向“凹”、“口”、“凸”状演化。

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备注/Memo

备注/Memo:
收稿日期:2018-04-30。
基金项目:公共安全风险防控与应急技术装备重点专项项目(2017YFC0805400).
作者简介:陶文斌,男,博士研究生;陈铁林,男,教授,博士生导师.
通讯作者:陶文斌,E-mail:taowenbin589@163.com.
更新日期/Last Update: 2019-06-03