Laboratory investigation into effect of bolt profiles on shear behaviors of bolt-grout interface under constant normal stiffness (CNS) conditions
文献类型：期刊论文
| 作者 | Cui, Guojian1,4; Zhang, Chuanqing1,4; Pan, Yibin2; Deng, Liang3; Zhou, Hui1,4 |
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 12期号:6页码:1234-1248 |
| ISSN号 | 1674-7755 |
| 关键词 | Bolt profile Constant normal stiffness (CNS) Shear test Interface failure characteristics Shear behaviors |
| DOI | 10.1016/j.jrmge.2020.03.010 |
| 英文摘要 | Rock bolts have been widely used for stabilizing rock mass in geotechnical engineering. It is acknowledged that the bolt profiles have a sound influence on the support effect of the rock bolting system. Previous studies have proposed some optimal rib parameters (e.g. rib spacing); unfortunately, the interface shear behaviors are generally ignored. Therefore, determination of radial stress and radial displacement on the bolt-grout interface using traditional pull-out tests is not possible. The load-bearing capacity and deformation capacity vary as bolt profiles differ, suggesting that the support effect of the bolting system can be enhanced by optimizing bolt profiles. The aim of this study is to investigate the effects of bolt profiles (with/without ribs, rib spacing, and rib height) on the shear behaviors between the rock bolt and grout material using direct shear tests. Thereby, systematic interfacial shear tests with different bolt profiles were performed under both constant normal load (CNL) and constant normal stiffness (CNS) boundary conditions. The results suggested that rib spacing has a more marked influence on the interface shear behavior than rib height does, in particular at the post-yield stage. The results could facilitate our understanding of bolt-grout interface shear behavior under CNS conditions, and optimize selection of rock bolts under in situ rock conditions. (C) 2020 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. |
| 资助项目 | key projects of the Yalong River Joint Fund of the National Natural Science Foundation of China[U1865203] ; National Key Research and Development Program of China[2019YFC0605103] ; National Key Research and Development Program of China[2019YFC0605100] ; National Natural Science Foundation of China[51279201] ; Youth Innovation Promotion Association CAS |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000604647400008 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25458]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Chuanqing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.PowerChina Huadong Engn Corp Ltd, Hangzhou 310014, Peoples R China 3.China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Guojian,Zhang, Chuanqing,Pan, Yibin,et al. Laboratory investigation into effect of bolt profiles on shear behaviors of bolt-grout interface under constant normal stiffness (CNS) conditions[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2020,12(6):1234-1248. |
| APA | Cui, Guojian,Zhang, Chuanqing,Pan, Yibin,Deng, Liang,&Zhou, Hui.(2020).Laboratory investigation into effect of bolt profiles on shear behaviors of bolt-grout interface under constant normal stiffness (CNS) conditions.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,12(6),1234-1248. |
| MLA | Cui, Guojian,et al."Laboratory investigation into effect of bolt profiles on shear behaviors of bolt-grout interface under constant normal stiffness (CNS) conditions".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 12.6(2020):1234-1248. |
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。