Further improvements for estimating the position of the bolt plates could be realised by incorporating different feature sets into the visual analytics approach.
The rib wall in this section of the mine was unmeshed (see Fig. 4), unlike many mines where a steel meshing, covering the entire rib surface, is secured to the walls using the bolt plates.
The approach avoids the need to install additional reference infrastructure by exploiting mining structures already present in the underground mining environment, such as bolt plates and cut-throughs, to generate feature-rich radar signal returns.
The first field test of the radar sensor was carried out in a disused section of an underground colliery in New South Wales, Australia, and targeted a very small section of a tunnel rib wall, scanning only three consecutive bolt plates (Hargrave et al. 2014).
In the case of bolted plate systems, the embedded bolts can provide Type I resistance to forces normal to the concrete surface, similar to that shown in Fig. 2.
All the structural components including the steel beam, concrete slab, shear connectors, and connection elements (bolts, plates, angles etc).
In Campbell's L-shaped study center, an assembly of bolted plates and welded flanges create a still life among rows of desks.
In this paper, the effect of electroless nickel phosphorous coatings on the fatigue and fretting fatigue behaviour of Al 7075-T6 bolted plates has been investigated.
The behaviours of the open-hole and bolted plates in tension are fundamental in the mechanical assessment of the bolted connections.
Few homes built in the town after the storm were secured to their foundations with bolted plates, which greatly increase resistance to storms; instead, most were secured with the same kinds of nails and pins that failed in 1999.
