Analytical analysis of pullout resistance of the hydraulic expansion rockbolts on a frictionally coupled model
文献类型：期刊论文
| 作者 | Sejin KIM; Heejung YOUN; Kyoungchul KIM |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2016-12 |
| 卷号 | 13期号:12页码:2249-2259 |
| 关键词 | Expansion rockbolt Pullout resistance Pullout load Shear strength |
| ISSN号 | 1672-6316 |
| 通讯作者 | Kyoungchul KIM |
| 英文摘要 | This paper proposes an empirical formula to estimate the shear strength of hydraulic expansion rockbolts. The field experimental results were obtained from eleven pullout tests to evaluate the results computed by the proposed formula.It was found that shear resistance of hydraulic expansion rockbolts significantly depends on the uniaxial compressive strength and elastic modulus of rock, with high correlation coefficients of 0.7651 and 0.8587, respectively. The developed formula enables estimation of the maximum pullout load in an analytical process without pullout tests in the field. Conversely, due to the poor interlocking at the initial pullout load, the measureddisplacements were higher than the estimated ones. To reduce the interlocking effects between bolt and rock, we recommendpreloading of 29.4kN. Preload allows reducing the distance between the measured and estimated displacement and making two load-displacement curves practically identical with marginal differences of 1.1 to 1.5mm at the maximum pullout load. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/17835]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 No.12 |
| 推荐引用方式 GB/T 7714 | Sejin KIM,Heejung YOUN,Kyoungchul KIM. Analytical analysis of pullout resistance of the hydraulic expansion rockbolts on a frictionally coupled model[J]. Journal of Mountain Science,2016,13(12):2249-2259. |
| APA | Sejin KIM,Heejung YOUN,&Kyoungchul KIM.(2016).Analytical analysis of pullout resistance of the hydraulic expansion rockbolts on a frictionally coupled model.Journal of Mountain Science,13(12),2249-2259. |
| MLA | Sejin KIM,et al."Analytical analysis of pullout resistance of the hydraulic expansion rockbolts on a frictionally coupled model".Journal of Mountain Science 13.12(2016):2249-2259. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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