I've had a contractor at my house (single family) for several days. He's been endeavoring to figure out what's causing a signal interference issue with my Tr!mlight system that he installed. For days I suggested he, "figure it out for himself," but his presence at my the house is starting to...
I'm not much of a hydraulics guy, but I do have a mech degree and I practice a bit in piping.
A client asked if we could provide services/plans to convert a box culvert (old, wooden, bad condition during inspection) to a series of circular CMP culverts. In lieu of a more complete study of the...
I've been tasked with estimating the remaining time to required repairs for a tubular corrugated steel structure with a potash/mining muck backfill and traffic over the backfill. The tube was placed in a mining drift and the perpendicular drift above has the traffic.
The side of the tubes are...
I've been asked to select materials in the bid stage for a chemical processing facility. We do tanks, but typically the material selection for our tanks is one step up the engineering chain.
I've performed some cursory research, and I have some undergraduate-level training in material...
I've been asked to assess a degraded CMU wall, and it looks as though it's in poor condition. I can see into the cells in a handful of locations, so that gives you an idea of the condition. The site is subject to high chlorides, and I suspect chlorides are culpable for the degradation. I'm...
I've worked on several jib crane structures and although the Canadian design guide for cranes (Crane Supporting Steel Structures) recommends a deflection limit of L/225, I've reverse engineered several "manufactured" jib cranes and I've landed on L/150 as a deflection limit for unpowered...
I was recently approached by a client in the mining industry for some testing on FRP grating. The problem is this: the manufacturer of the FRP product guarantees the product will go to 70C without structural degradation. The grating would potentially be subjected to product with temperatures...
I'm working on a project for a mat foundation under train rails for some rail equipment. The area we've excavated is traditionally wet, and we specifically designed a drainage system that would mitigate the typically wet surface. I've attached an image with a depiction of our proposed weeping...
I've specified a thin layer (2") of sand directly under concrete for several slab-on-grade projects per a professional development course I participated in a few years ago. As I understand it, wetting the sand prior to concrete placement helps mitigate warping of thinner slabs during curing by...
