Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Tong-Bin Zhao"'
Publikováno v:
Journal of Materials Research and Technology, Vol 12, Iss , Pp 1113-1124 (2021)
To research the influence of rock strength on the mechanical behavior, AE characteristics and P-velocity evolution of coal-rock combination specimen, six kinds of combination specimens with different rock strengths are chosen to carry out the ultraso
Externí odkaz:
https://doaj.org/article/1a89a5d404e842ecac24657667059603
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Constant stiffness confining condition seems more reasonable than constant stress confining condition to simulate the actual confining stress environment of in situ rock which varies with the lateral strain. Compression tests of sandstone samples wit
Externí odkaz:
https://doaj.org/article/2ae8f4c34a134f888a780948adb3c51d
Publikováno v:
Energy Science & Engineering, Vol 7, Iss 6, Pp 2351-2372 (2019)
Abstract Field investigations have proven that layer‐crack structures make an essential contribution to rock burst occurrence in brittle coal or rock mass. This paper first studies the mechanical behavior of layer‐crack red sandstone specimens wi
Externí odkaz:
https://doaj.org/article/de7be15d682e4ced8ad5311952d78638
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 10, Iss 1, Pp 2094-2105 (2019)
Many field investigations have proven that the stoping speed of mining face is closely related to the amount of energy released from hard roof fracturing. Taking the Dongtan Coal Mine as the engineering background, we first analyze the relationship b
Externí odkaz:
https://doaj.org/article/f88f8569c6e14882a7924914d26e9201
Publikováno v:
Complexity, Vol 2019 (2019)
SFA (Surface Fitting Algorithm) for continuous displacement is an important method for digital image correlation with antinoise ability and computational efficiency advantages in practical applications. In order to improve the algorithm accuracy and
Externí odkaz:
https://doaj.org/article/9e79c6d361ab47488756b8a8d5f8954a
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
Our experimental work was designed to explore the particle size effect of simulated fault gouge on slip characteristics by the conventional double-direct shear friction configuration combined with acoustic emission (AE). The following conclusions wer
Externí odkaz:
https://doaj.org/article/80c69e1d046242d9b85a2574f6836a15
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
Destress drilling method is one of the commonly used methods for mitigating rock bursts, especially in coal mining. To better understand the influences of drilling arrangements on the destress effect is beneficial for rock burst mitigation. This stud
Externí odkaz:
https://doaj.org/article/27519a346a35439b95fd2a85b3330578
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
Many case studies have revealed that rock bursts generally occur in the high stress concentration area where layer-crack structures often exist, especially for brittle coal or rock masses. Understanding the mechanical properties of layer-crack rock m
Externí odkaz:
https://doaj.org/article/63c2ecf6b2ce432b96258685b199219b
Publikováno v:
Advances in Mechanical Engineering, Vol 9 (2017)
Many case studies have revealed that rock bursts generally occur in high stress concentration areas where layer-crack structures often exist, especially for brittle coal or rock masses. Understanding the mechanical behavior of layer-crack rocks is be
Externí odkaz:
https://doaj.org/article/e435221e2c4a4b2c892e3ba8f50e13db
Publikováno v:
International Journal of Distributed Sensor Networks, Vol 13 (2017)
We designed and manufactured several types of simulated faults with different-size rectangular zigzag gouges, and sheared them by traditional double-direct shear tests. Simultaneously, the shear force and corresponding acoustic emissions were recorde
Externí odkaz:
https://doaj.org/article/23906180436a4493bd1ec9841f9461e4