Abstract To obtain rockburst characteristics at rock engineering, the event, in situ stress characteristics, and proneness are studied a deep gold mine. The severity of increases with cover depth main locations spalling events include roof sidewall. measurement results show this area that is controlled by horizontal constructional pressure, self-weight also has an important influence. mechanism...

The field of infrastructure rehabilitation and development requires a better understanding of soil-structure interactions. The interaction behaviour between soil and structures has mostly been investigated through theoretical and/or numerical analysis. This paper presents a series of experiments performed on an intermediate-scale physical model made of an instrumented silo. In contrast to most ...

To solve the safety hazard of a buried gas pipeline caused by subsidence mined-out area, three-dimensional model in area was established using geological parameters and finite-element software ABAQUS. The effects friction coefficient pipe soil, coal-seam dip angle, horizontal angle on mechanical behavior under varying widths goaf were investigated. results indicate that maximum equivalent stres...

the aim of this study was to determine the effect of trenched zirconia bar on the von mises stress distribution of ips -empress ii core ceramics.the three-dimensional model including a three-unit bridge from the second premolar to the second molar was designed. the model was reinforced with zirconia bar (zb), zirconia bar with vertical trench (vzb) and zirconia bar with horizontal trench (hzb) ...

DOI:10.17014/ijog.9.2.247-262 Pore pressure prediction using velocity-mean effective stress relationship is introduced in Madura Subbasin which located a compressional tectonic setting. The new workflow accommodates the three principal stresses, those are vertical stress, maximum horizontal and minimum form of mean as compaction main inducing agent. application this has resulted more accurate p...

Recent seismic studies of ice stream B, Antarctica and field analysis of mid-latitude glacial deposits suggest that deformable basal sediments (e.g., water-saturated till) are important in determining ice sheet flow. If the ratio of till viscosity to effective ice viscosity is small, vertical shear associated with horizontal flow is confined to the deforming bed alone. Ice flow over a deformabl...

In 4D printing research, different types of complex structure folding and unfolding have been investigated. However, research on cross-folding of origami structures (defined as a folding structure with at least two overlapping folds) has not been reported. This research focuses on the investigation of cross-folding structures using multi-material components along different axes and different ho...

This paper presents the optimal solutions to the maximum endurance subsonic by the application of Pontryagin's maximum principle. The gliding vehicle is assumed to be carried by an aeroplane which has a velocity vector heading along the line connecting aeroplane and target. Then at a certain point when the aeroplane is approaching, directly above, or leaving the target, the vehicle is released....