Results 141 to 150 of about 49,627 (206)

Study on the influence of blasting on the structural stability of newly-built and adjacent tunnels. [PDF]

Sci Rep
Li ZQ, Zhang JS, Ma GQ, Zhou ZL, Pu SP, Zeng C.   +5 more
europepmc   +1 more source

Research on surrounding rock control technology of roof cutting and pressure relieving for roadside filling in gob-side entry retaining of large mining height panel. [PDF]

Sci Rep
Weiyong L, Shengjun L, Yaohui S, Tao G, Wansheng M, Xiaowu Z.   +5 more
europepmc   +1 more source

Multi-scale study on dynamic damage characteristics and energy dissipation of deep rock under thermal-hydro-mechanical coupling. [PDF]

Sci Rep
Ping Q, Zhang B.
europepmc   +1 more source

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Instrumented Model Rock Blasting

Journal of Testing and Evaluation, 2011
Abstract Literature review information and model scale rock blasting tests have been utilized to study the effects of some blast and fragmentation parameters on peak p-wave stress. A method for modeling scale blasting in sandstone blocks with dimensions of 515×335×215 mm3 has been studied and the results from a blast experiment ...
Abdellah Hafsaoui, Korichi Talhi
openaire   +1 more source

Modeling fractures in rock blasting

International Journal of Rock Mechanics and Mining Science & Geomechanics Abstracts, 1997
A numerical model based on the discrete element is used to investigate the importance of stress waves on the initiation and propagation of radial fractures during the dynamic loading phase of an explosion. An explosion occurring in a two-dimensional rock plate is simulated and the resulting fracturing process is detailed.
F.V. Donzé, J. Bouchez, S.A. Magnier
openaire   +1 more source

Numerical study of rock blasting

AIP Conference Proceedings, 2015
The paper presents numerical simulation results on fracture of a concrete block due to dynamic explosive loads applied to the walls of a blast hole. Considered in the study is the influence of the pulse shape and rock properties on the pattern of irreversible deformation and cracking.
Yu. P. Stefanov, R. A. Bakeev, A. S. Yudin, N. S. Kuznetsova   +3 more
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Asymmetric Blasting: A Rock Mass Dependent Blast Design Method

Fragblast, 2002
Blasting has been the most frequently used method for rock breakage since black powder was first used to fragment rocks, more than two hundred years ago. This paper is an attempt to reassess standard design techniques used in blasting by providing an alternative approach to blast design. The new approach has been termed asymmetric blasting.
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Predicting rock size distribution in mine blasting using various novel soft computing models based on meta-heuristics and machine learning algorithms

Geoscience Frontiers, 2021
Chengyu Xie, Hoang Nguyen, Xuan-Nam Bui
exaly  

Numerical study on the behavior of blasting in deep rock masses

Tunnelling and Underground Space Technology, 2021
zheming zhu, Meng Wang, Lei Zhou
exaly