Laboratory Investigation on Shear Behaviors of Bolt-Grout Interface Subjected to Constant Normal Stiffness
文献类型：期刊论文
| 作者 | Zhang, Chuanqing1,2; Cui, Guojian1,2; Deng, Liang3; Zhou, Hui1,2; Lu, Jingjing1,2; Dai, Feng4 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 53期号:3页码:1333-1347 |
| 关键词 | Bolt-grout interface Direct shear test Constant normal stiffness Failure mode Rock bolt |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-019-01983-6 |
| 英文摘要 | Shear behavior of the bolt-grout interface basically depends on site-specific boundary conditions, i.e., initial normal stress and normal stiffness of the borehole wall. Few studies have been conducted to investigate the shear behaviors between the bolt and grout material under different boundary conditions. To better understand the effect of boundary conditions on the shear behaviors of the bolt-grout interface, simplified two-dimensional (2D) bolt-grout interface specimens are prepared and tested using direct shear tests at various initial normal stresses and normal stiffnesses in this context. The testing results showed that both initial normal stress and normal stiffness significantly influence the bolt-grout interface shearing behaviors. Increasing the normal stiffness or initial normal stress would increase the peak and residual shear strength. However, the degree of the brittleness after the peak, normal displacement, and peak friction coefficient was reduced. It is noted that the peak and residual shear strength points under the constant normal stiffness conditions located near the peak and residual strength envelopes for the constant normal load tests, respectively. Besides, the shear failure process of the bolt-grout interface was captured by PAC acoustic emission (AE) monitoring and digital camera technology, a good correlation between the evolution of AE parameters and the shear stress curves was obtained. |
| 资助项目 | Key projects of the Yalong River Joint Fund of the National Natural Science Foundation of China[U1865203] ; National Natural Science Foundation of China[51279201] ; Youth Innovation Promotion Association CAS |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000529367700001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24062]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Cui, Guojian |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Peoples R China 4.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chuanqing,Cui, Guojian,Deng, Liang,et al. Laboratory Investigation on Shear Behaviors of Bolt-Grout Interface Subjected to Constant Normal Stiffness[J]. ROCK MECHANICS AND ROCK ENGINEERING,2020,53(3):1333-1347. |
| APA | Zhang, Chuanqing,Cui, Guojian,Deng, Liang,Zhou, Hui,Lu, Jingjing,&Dai, Feng.(2020).Laboratory Investigation on Shear Behaviors of Bolt-Grout Interface Subjected to Constant Normal Stiffness.ROCK MECHANICS AND ROCK ENGINEERING,53(3),1333-1347. |
| MLA | Zhang, Chuanqing,et al."Laboratory Investigation on Shear Behaviors of Bolt-Grout Interface Subjected to Constant Normal Stiffness".ROCK MECHANICS AND ROCK ENGINEERING 53.3(2020):1333-1347. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。