Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Zhouquan Luo"'
Publikováno v:
Energy Science & Engineering, Vol 7, Iss 4, Pp 1154-1165 (2019)
Abstract This study is aiming at the problems of slow collision detection speed of bounding box, low efficiency of triangle intersection detection, and triangulation in regions where complex intersecting lines are segmented that exist in Boolean oper
Externí odkaz:
https://doaj.org/article/d1952aa5144449cb9fe54e4d483a72f4
Publikováno v:
Energy Science & Engineering, Vol 7, Iss 4, Pp 1254-1263 (2019)
Abstract Accurately grasping the spatial distribution characteristics of fractures is an important basis for computation and analysis of rock engineering. On the basis of field investigation, probability statistics, and numerical simulation, the fast
Externí odkaz:
https://doaj.org/article/b659c76abaf940019c81e7536e7c4e42
Publikováno v:
IEEE Access, Vol 7, Pp 60920-60930 (2019)
To investigate the influence of intersection structures on the mechanical properties and failure mechanisms of rock materials, a series of uniaxial compression tests on complete red sandstone specimens and specimens with various hole shapes (T-shape,
Externí odkaz:
https://doaj.org/article/11125c95fdd440cf943cc67a76e7c16c
Publikováno v:
IEEE Access, Vol 7, Pp 96912-96925 (2019)
Current artificial intelligence models for evaluating goaf stability in underground metal mines need a large amount of sample data for training, and their accuracy declines with small sample size. With the aim of solving this problem, this paper prop
Externí odkaz:
https://doaj.org/article/1d78f9828c5b4c3283b21cd56c5acf6b
Publikováno v:
Royal Society Open Science, Vol 6, Iss 12 (2019)
Under different exploitive conditions, the humidity levels of the backfill stopes are not the same. Humidity greatly affects the strength and microscopic characterization of the backfill. Cemented paste backfill (CPB) specimens were cured using 0, 30
Externí odkaz:
https://doaj.org/article/7744df71e3104268bdc9fcba32cfbe15
Publikováno v:
Royal Society Open Science, Vol 6, Iss 7 (2019)
A plastic bearing calculation method for a blasting-roof is proposed to solve the problem of determining the blasting-roof thickness in deep hole mining. A mechanical analysis model for the plastic bearing was built for the typical boundary condition
Externí odkaz:
https://doaj.org/article/f3fcfd7541694562b1e8ed91524d1d54
Publikováno v:
Advances in Civil Engineering, Vol 2019 (2019)
For the stability of the intervening pillar of the sublevel drilling open-stope subsequent filling mining method, the multifactor stability mechanical model of the intervening pillar under two different constraint conditions (Model 1 and Model 2) was
Externí odkaz:
https://doaj.org/article/9830cdce94af4f56a21c5089db6fe143
Publikováno v:
Advances in Materials Science and Engineering, Vol 2018 (2018)
Stone powder cement (SPC) is widely used as a novel cement substitute material in concrete for its good gelling performance and low cost. In order to reduce the backfilling cost and assess the potential of SPC backfilling materials, a series of exper
Externí odkaz:
https://doaj.org/article/3dc046248945425f857a398c5481a172
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
Aiming at the deficiency of the conventional multiphysics coupling model, the deterioration of strength parameters was considered by defining elastoplastic damage variables, and the heterogeneity of strength parameters was expressed by the Weibull di
Externí odkaz:
https://doaj.org/article/df68943fb3ee43cd905a5699285de0f8
Publikováno v:
Applied Sciences, Vol 9, Iss 10, p 2076 (2019)
To effectively reuse waste limestone powder, which is a major solid waste around mines, we replaced limestone powder back into a part of cement in solid waste cemented paste backfill (SWCPB) and studied the parameters of pore structures. To optimize
Externí odkaz:
https://doaj.org/article/4203336194794d01afbab2fbea424da8