Results 21 to 30 of about 49,627 (206)

Improving the efficiency of blasting operations in mines with the help of emulsion explosives [PDF]

, 2018
Purpose. To improve the efficiency of blasting operations in mines taking into consideration the upgrading of equipment used to charge blastholes as well as application of high-productive mining equipment of new generation. Methods.
Lyashenko, V, Nebohin, V, Vorob’ev, A, Vorob’ev, K   +3 more
core   +1 more source

Experimental study on rock-breaking load in slot-hydraulic blasting

工程科学学报, 2020
Slot blasting is widely used in mining and tunnel construction, municipal demolition, water conservation, hydropower, and other related projects due to its low cost and high efficiency.
Bin-wei XIA, Yu-gang GAO, Cheng-wei LIU, Chang-nan OU, Zi-ye PENG, Lang LIU   +5 more
doaj   +1 more source

Spatial Variation Law of Blasting Vibration in Layered Strata under Blasting Excavation of Subway Tunnel

Shock and Vibration, 2023
Blasting vibration generated from blasting excavation of subway tunnel may endanger the adjacent structures buried in strata. To guarantee their safety and stability, it is crucial to understand the spatial variation law of blasting vibration in strata ...
Zhen Zhang, Chuanbo Zhou, Nan Jiang, Yingkang Yao   +3 more
doaj   +1 more source

Study on Critical Damage Width of Parallel Double-Free Surface Blasting

Frontiers in Earth Science, 2022
Reserved rock wall is usually used in blasting operation when one side has an important protection object. Rock wall demolition blasting was essentially a parallel double-free surface blasting; blasting is the ideal effect of casting a side fully broken ...
Jianjun Shi, Xiaopeng Miao, Haili Meng, Huaming An, Wei Zhang   +4 more
doaj   +1 more source

Overview of technologies for constructing the facilities at the Dniester pumped storage power station [PDF]

, 2019
Purpose. Perform an overview of the construction technologies and substantiate the effectiveness of the Ukrainian experience in building a pumped storage power station (PSPS) on the Dniester River in difficult engineering-geological conditions with the ...
Horbatiuk, Yu, Parinov, V, Petrenko, V, Radkevych, A, Tiutkin, O   +4 more
core   +1 more source

The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting

Shock and Vibration, 2022
Rock damage and vibration attenuation are the basis of blasting design, which will affect rock breaking results and the safety of structures (buildings).
H.Z. Yue, C. Yu, H.B. Li, C.B. Zhou, S.H. Chen, Z.S. Shao   +5 more
doaj   +1 more source

Detection of nanoseismic events related to slope instabilities in the quarry district of Coreno Ausonio (Italy) [PDF]

, 2016
Le cave per l’estrazione di materiale roccioso rappresentano contesti in cui possono aver luogo eventi di instabilità gravitativa causati dalle continue sollecitazioni cui sono soggette le pareti produttive, principalmente connesse alle vibrazioni dovute
FIORUCCI, MATTEO, IANNUCCI, ROBERTO, MARTINO, Salvatore, Paciello, Antonella   +3 more
core   +1 more source

An innovative method to assess specific charge, drilling and blasting costs considering critical factors of rock mass properties, fragment size and blasthole parameters

Results in Engineering
The specific charge has been given as a function of the blastability index (BI) only in previous research, whereas fragment size is one of the attractive blasting results. The impacts of combination of the important factors such as fragment size, in-situ
Hassan Moomivand, Sina Nayebi, Hussammodin Moomivand, Hamid Masoumzad   +3 more
doaj   +1 more source

A fractal fragmentation model for rockfalls [PDF]

, 2017
The final publication is available at Springer via http://dx.doi.org/10.1007/s10346-016-0773-8The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the in situ block size distribution (IBSD) of the rock mass detached from the ...
Corominas Dulcet, Jordi, Mavrouli, Olga Christina, Ruiz Carulla, Roger   +2 more
core   +2 more sources

Research into the effect of gallery size on blast pull in underground coal mines [PDF]

, 2018
Purpose. To investigate the effect of gallery size on blast pull in underground colliery by drilling and blasting techniques. Methods. The study conducted in three different underground collieries namely A, B and C located in eastern part of India has ...
Choudhary, B
core   +1 more source