Zobrazeno 1 - 10
of 188
pro vyhledávání: '"bench blasting"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-21 (2024)
Abstract Bench blasting is commonly used in open-pit coal mines because it effectively increases coal production and aids in overburden removal. However, uncontrolled blasting can generate significant vibrations and accelerations, which may lead to s
Externí odkaz:
https://doaj.org/article/d517089f7c3c4ca881b24e740b80f1f9
Publikováno v:
Alexandria Engineering Journal, Vol 108, Iss , Pp 626-639 (2024)
By integrating an established rock damage model into the LS-DYNA computer code and using a widely used method for equivalently simulating multiple blastholes detonation, the damage processes of surrounding rock with different properties under the ben
Externí odkaz:
https://doaj.org/article/c865b7e13f4248f4b523d3d551755010
Publikováno v:
Rock Mechanics Bulletin, Vol 3, Iss 4, Pp 100142- (2024)
Bench blasting is commonly used in open-pit mining. Some design parameters such as positions of hole packing and caving holes have great influences on the blasting effects. In this work, with a hybrid discrete-finite element method, numerical simulat
Externí odkaz:
https://doaj.org/article/d9ac9de085f547eeaf7126694c8506c8
Autor:
Ji, Ling a, b, c, ⁎, Yao, Yingkang a, b, ⁎, Zhou, Chuanbo d, Zhang, Zhen e, Cao, Haiqing f, Wu, Tingyao d, g
Publikováno v:
In Alexandria Engineering Journal December 2024 108:626-639
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract A large number of burnt rocks in some open-pit mines in Xinjiang, Inner Mongolia and Ningxia have a great influence on the blasting effect. For this kind of rock, through the analysis of physical and chemical changes, combined with ANSYS/LS-
Externí odkaz:
https://doaj.org/article/737dad5a7abb4ba1a04ba6d211d3d6ab
Publikováno v:
In Rock Mechanics Bulletin October 2024 3(4)
Autor:
Huo, Xiaofeng a, b, Jiang, Yuanjian c, Wei, Wenpeng d, ⁎, Qiu, Xianyang e, Yu, Zhi a, ⁎, Nong, Junnian d, Li, Qinghua d
Publikováno v:
In Simulation Modelling Practice and Theory September 2024 135
Publikováno v:
In International Journal of Rock Mechanics and Mining Sciences August 2024 180
Autor:
Suleyman Safak
Publikováno v:
Symmetry, Vol 16, Iss 8, p 979 (2024)
It is well known that the first stage of mine-to-mill optimization is rock fragmentation by blasting. The degree of rock fragmentation can be expressed in terms of average grain (X50) size and size distribution. There are approaches in which exponent
Externí odkaz:
https://doaj.org/article/02da3a532d1a41489c1ee24ae866429f
Publikováno v:
Frontiers in Materials, Vol 10 (2023)
Deep-hole bench blasting is the primary method for aggregate extraction in mines. However, factors such as complex geological conditions and suboptimal blasting parameters often result in uneven rock fragmentation and high fines content. This not onl
Externí odkaz:
https://doaj.org/article/2f09d0c4123d48899d0204200c25a115