Zobrazeno 1 - 10
of 2 220
pro vyhledávání: '"acoustic emission(ae)"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 12, Pp 5061-5076 (2024)
The method for precursor information acquisition based on acoustic emission (AE) data for jointed rock masses is of significant importance for the early warning of dynamic disasters in underground engineering. A clustering-convolutional neural networ
Externí odkaz:
https://doaj.org/article/3dd9676e89ce4cbe97b749506472bbdd
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 12, Pp 5077-5094 (2024)
Fiber-reinforced polymer (FRP) wrapping is a potential technique for coal pillar reinforcement. In this study, an acoustic emission (AE) technique was employed to monitor coal specimens with carbon FRP (CFRP) jackets during uniaxial compression, whic
Externí odkaz:
https://doaj.org/article/87add92e7ca045118d1190584737ba20
Autor:
Deba Datta Mandal, Mourad Bentahar, Abderrahim El Mahi, Alexandre Brouste, Rachid El Guerjouma, Silvio Montresor, François-Baptiste Cartiaux, Jorge Semiao
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract This work presents an acoustic emission (AE) based method, named a series of narrow partial power bands (SN2PB), to monitor the damage mechanisms within reinforced concrete beams during quasi-static bending tests. Unlike conventional time-do
Externí odkaz:
https://doaj.org/article/cbd46b071d754fb7a3124f635581ec80
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Freeze–thaw (F–T) cycling poses a significant challenge in seasonally frozen zones, notably affecting the mechanical properties of soil, which is a critical consideration in subgrade engineering. Consequently, a series of unconfined comp
Externí odkaz:
https://doaj.org/article/fd8ae01769024de584dac4d9612dbfde
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 9, Pp 3511-3523 (2024)
The size of mineral grain has a significant impact on the initiation and propagation of microcracks within rocks. In this study, fine-, medium-, and coarse-grained granites were used to investigate microcrack evolution and characteristic stress under
Externí odkaz:
https://doaj.org/article/d9786607dab24323bac09f5b50d0905e
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 9, Pp 3378-3394 (2024)
Drilling pressure relief is one of the methods to reduce the risk of coal bursts in deep mines. However, the effect of the drill hole orientations has not been studied well enough to understand their impact on the burst failure mechanism. In this stu
Externí odkaz:
https://doaj.org/article/ce1dd5c7450f43629ef9ef1248065340
Autor:
Nikhil Holsamudrkar, Sauvik Banerjee
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03773- (2024)
The debonding between fabric and matrix/substrate hampers the strength and durability of fiber-reinforced cementitious matrix (FRCM) strengthened elements. One of the ways to improve the performance is to use mechanical anchorages. However, damage me
Externí odkaz:
https://doaj.org/article/6af1230690a24bb8b1d945b0b8341bb7
Autor:
Lanbin Zhang, Ru Zhang, Li Ren, Zhilong Zhang, Zetian Zhang, Dong Wang, Xinzhong Wang, Huijun Lu
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 7, Pp 2663-2677 (2024)
For projects near the tectonic belt, mylonite of varying metamorphic degrees may be present. The matrix proportion of rock reflects its internal microscopic characteristics, thus it is beneficial for engineering geology to study the effect of the mat
Externí odkaz:
https://doaj.org/article/5d7f56a84407429ca8600c078881108c
Publikováno v:
Meitan xuebao, Vol 49, Iss S1, Pp 167-181 (2024)
The stability of cemented tailing filling body plays a core role in backfill mining as bearing body. In recent years, mineral processing wastewater is reused for filling mining to reduce a series of problems such as environmental pollution in some mi
Externí odkaz:
https://doaj.org/article/5aa442e10f054201a5b1ba37fe1fedcd
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract I/II/III mixed mode fractures of intersecting joint fissures often occur in natural rock masses, and jointed rock masses are prone to rockbursts in deep underground engineering when subjected to long-term crustal stresses. However, most stud
Externí odkaz:
https://doaj.org/article/a7e0599697c944e2855fd1c50fbeee81