Alberta oil sands mining operations have produced about 1 billion m3 of fluid fine tailings (FFT) stored in large "ponds" up to 10 km long and 4 km wide. FFT is a stable colloidal suspension that is forecasted to take decades to dewater if left undisturbed. The EKS-DT process, developed by ElectroKinetic Solutions, has the potential to be a cost-effective technology for dewatering FFT; understanding how the FFT properties respond to the EKS-DT process is a critical step in commercializing the technology. The EKS Model is a computer simulation program designed for this purpose.
Coronaviruses are a large family of viruses and COVID-19 is a new disease from this family that has not been previously identified in humans . Those who are infected with COVID-19 may have little to no symptoms and may take up to 14 days to appear after exposure to COVID-19 . It’s possible to detect this disease early by measuring the heart rate, blood oxygenation (SpO2), body temperature and heart rate variability and isolate the person to prevent the spread of the virus. VitalTracer has developed a medical wrist device that continuously tracks bio-signals in real-time.
Rural Municipality of St. François Xavier developed a strategy to lower total phosphorus level below legal water discharge limits when over-limit phosphorus values are measured at the discharge pipe of the lagoon. This strategy consists of a trickled discharge of lagoon treated water and a swale system. Swales are widely applied to manage surface runoffs from urban areas and reduce phosphorus and other pollutants in the runoffs before they reach to the receiving water bodies.
Heavy industrial construction projects consist of oil refinaries which generally involve complex structures, large-scale sites, and large numbers of workers from different disciplines such as civil, mechanical, and chemical. These disciplines may require similar or completely different scaffolding systems in order for workers to not only access their working areas but also move material horizontally and vertically.
Fatigue failure is one of the most common failure modes in steel structures when subjected to variable or repeated loading. Involving repeated loading, moving, and unloading containers, the quayside ship-to-shore cranes are prone to develop fatigue-induced cracks. Non-destructive inspection methods are mostly used in port cranes to detect fatigue-induced cracks. However, the methods have uncertainties on the initiation and location of the fatigue cracks and they must be manually and periodically conducted, which results in significant downtime and inspection efforts.
It is crucial to understand soil-pipeline interaction to be able to design buried pipes against Geohazards. Soil-pipe interaction in the level ground is well established, and the current design practice is based on the assumption that a pipe is installed on a flat ground surface. In reality, however, pipelines often cross natural slopes and sometimes riverbanks. The design of pipes embedded in slopes is different in the way that the inclination of the ground surface has found to affect the soil load significantly.
The overarching goal of this partnership is to develop a modular accelerated building construction system that is suitable for implementation into the Canadian marketplace. The use of the post-tensioned, and friction-based, connections for modular system connections is atypical of North American design procedures and the reliance on these connections for resisting sustained gravity loads is generally not supported in existing Canadian building design standards.
Hard-rock mining of uranium in Canada's north is challenging and often difficult. Operating risk exposures are heightened when mining in high-grade uranium ore bodies that are exposed to possible flooding from water above the mine. To succeed in this environment Cameco has successfully mechanized their operations and relies on Jet Boring technology.
Glass Fibre-Reinforced Polymer (GFRP) materials have emerged as a promising material in civil engineering applications due to their superior characteristics such as light weight, high strength, durability, and resistance to corrosion. Thanks to these features, GFRP bars have been used in many civil infrastructure applications. However, there are still opportunities to benefit from this innovative material. Using tilt-up wall panel method in construction of houses, and commercial and industrial buildings is a popular alternative to cast-in-place, precast, or masonry construction methods.