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全长粘结岩石锚杆拉拔数值模拟
Release time:2019-03-10 Hits:
Indexed by:期刊论文
First Author:张凯
Correspondence Author:Yang, Q.; Institute of Geotechnical Engineering, School of Civil Engineering, Dalian University of Technology, Dalian 116024, China; email: qyang@dlut.edu.cn
Co-author:杨庆,蒋景彩,孙亚军
Date of Publication:2013-09-24
Journal:大连理工大学学报
Included Journals:PKU、ISTIC、CSCD、Scopus
Document Type:J
Volume:53
Issue:5
Page Number:710-714
ISSN No.:1000-8608
Key Words:全长粘结岩石锚杆;拉拔荷载;弹簧模型;数值模拟
Abstract:岩石锚杆已经在岩体边坡和隧道开挖加固中得到了成功的应用,但锚杆锚固段内的具体受力分析仍然没有得到清楚的解决.从锚固段受力连续性理论出发,采用界面剪应力重分布假设,定义出剪切刚度的软化曲线,并利用ABAQUS软件自带的弹簧模型,对典型拉拔试验进行了数值分析,表明多种因素通过改变砂浆层的尺寸和强度对锚杆最大拉拔荷载产生影响.与实际试验结果相比,数值解和实测值有相当的一致性.
Translation or Not:no