Szczegóły publikacji
Opis bibliograficzny
Mechanical behaviour of rock samples with burst liability under different pre-cycling thresholds / Jianhang Chen, Banquan Zeng, Wuyan Xu, Kun Wang, Krzysztof SKRZYPKOWSKI, Krzysztof ZAGÓRSKI, Anna Zagórska, Zbigniew RAK // Applied Sciences (Basel) [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 2076-3417. — 2025 — vol. 15 iss. 5 art. no. 2760, s. 1–16. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 14–16, Abstr. — Publikacja dostępna online od: 2025-03-04
Autorzy (8)
- Chen Jianhang
- Zeng Banquan
- Xu Wuyan
- Wang Kun
- AGHSkrzypkowski Krzysztof
- AGHZagórski Krzysztof
- Zagórska Anna
- AGHRak Zbigniew
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 158867 |
|---|---|
| Data dodania do BaDAP | 2025-04-17 |
| Tekst źródłowy | URL |
| DOI | 10.3390/app15052760 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Applied Sciences (Basel) |
Abstract
To study the influence of the main roof period pressure on the instability mechanism of rock pillars with burst liability, the composite loading mode of “pre-cycling loading + continuous loading with a constant rate” was used to conduct compression experiments on rock samples. Meanwhile, the mechanical behaviour response characteristics of rock samples were discussed. Experiment results are shown as follows: (1) mechanical properties of rock samples were strengthened by closing primary pores under pre-cycling loading. The surface roughness and secondary crack number decreased gradually with the pre-cycling threshold; (2) the Kaiser effect of AE (Acoustic Emission) signals was significant in the second and third pre-cycling loading and unloading stages. The Kaiser effect disappeared in the continuous loading stage; (3) AF-RA (Average Frequency-Risetime Amplitude) signals were distributed in a dense-sparse-dense form. Low AF and high RA shear type cracks were more common. Shear failure was the dominant failure mode in rock samples.