The Anchoring effect for two types of vertically foliated slate with different layer thicknesses
文献类型：期刊论文
| 作者 | Liu, Xufeng1,3; Pan, Peng-Zhi2,3; Chen, Shun1; Zhou, Yangyi2; Wang, Zhaofeng3 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 83期号:5页码:11 |
| 关键词 | Layered rock Layer thicknesses Anchoring effect Laboratory test Mechanical characteristics |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-024-03701-1 |
| 英文摘要 | Deep-buried steep thin-layered surrounding rock tunnels often face problems of cracking along the layers. Applying bolt supports is a relatively effective method of crack suppression. However, the anchoring effect of steep dip layered rocks, especially at different layer thicknesses, remains unclear. Therefore, the progressive fracture mechanism of two types of slate with different layer thicknesses under non-anchoring, end-anchoring, and full-length anchoring modes was studied through uniaxial cyclic loading and unloading tests, supplemented by monitoring methods such as acoustic emission and digital image correlation. The results show that the peak strength and elastic modulus of the two types of slate specimens with bolts are larger than those without bolts, especially the thick-layered slate specimens increase greatly; the crack development process of thick-layered slate is abrupt, while that of thin-layered slate is dispersed; after anchoring, the energy storage characteristics of thick slate can be significantly strengthened and the final failure modes of the two types of slate are more complete. In the field support, for thin slate, the end-anchoring method can be preferentially selected to utilize fully the overall rate of elongation of the bolt. For thick slate, full-length anchoring can be applied to play the prestress bonding role of bolts and anchoring agent, and suppress interlayer cracking. The results can be used to enrich understanding of the anchoring mechanism of layered surrounding rock, and guide the bolt support design of steep layered surrounding rock in deep tunnelling operations. |
| 资助项目 | National Natural Science Foundation of China[52125903] ; National Natural Science Foundation of China[52309146] ; National Natural Science Foundation of China[52339001] ; National Natural Science Foundation of China ; Research Fund of State and Local Joint Engineering Laboratory for Gas Drainage & Ground Control of Deep Mines (Henan Polytechnic University) ; Power China Kunming Engineering Corporation Limited |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001206725200001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41098]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Pan, Peng-Zhi |
| 作者单位 | 1.Henan Polytech Univ, State & Local Joint Engn Lab Gas Drainage & Ground, Jiaozuo 454000, Peoples R China 2.Northeastern Univ, Key Lab Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Liaoning, Peoples R China 3.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 | Liu, Xufeng,Pan, Peng-Zhi,Chen, Shun,et al. The Anchoring effect for two types of vertically foliated slate with different layer thicknesses[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2024,83(5):11. |
| APA | Liu, Xufeng,Pan, Peng-Zhi,Chen, Shun,Zhou, Yangyi,&Wang, Zhaofeng.(2024).The Anchoring effect for two types of vertically foliated slate with different layer thicknesses.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,83(5),11. |
| MLA | Liu, Xufeng,et al."The Anchoring effect for two types of vertically foliated slate with different layer thicknesses".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 83.5(2024):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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