Journal of Cold Regions Engineering: Recent submissions
Now showing items 421-440 of 748
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Variability, Seasonality, and Persistence of Fecal Coliform Bacteria in a Cold-Region, Urban Stream
(American Society of Civil Engineers, 2010)Fecal coliform (FC) analyses were conducted on weekly water samples collected from a single watershed over a 2-year period in Anchorage, Alaska. Although peak FC concentrations -
Seasonal Operation of Ponds for Chemical Precipitation of Wastewater
(American Society of Civil Engineers, 2010)Wastewater precipitation ponds (fellingsdams) are conventional stabilization ponds adapted to cold climate by the use of chemical precipitation to attain sufficient removal efficiency of impurities, primarily phosphorus. ... -
Snow Characterization at a City Snow Storage Facility
(American Society of Civil Engineers, 2009)A field investigation involving snow coring, surveying, and melt water collection was undertaken at a city snow storage facility to characterize the snow and melt water in Edmonton, Alberta, Canada. The investigation ... -
Thermal Interaction between Permafrost and the Qinghai-Tibet Railway
(American Society of Civil Engineers, 2010)Measures were taken to protect the thermal regime of the roadbed embankment after construction and to lower permafrost temperatures in the rich-ice and warm permafrost regions along the Qinghai-Xizang Railway. However, ... -
Investigation of Water to Ice Phase Change in Porous Media by Ultrasonic and Dielectric Measurements
(American Society of Civil Engineers, 2009)The main objective of this paper is to study the evolution of the ice content of porous media submitted to subzero temperatures by dielectric and ultrasonic measurements. Dielectric measurements are made by a capacitive ... -
Selection of Strategies for Winter Maintenance of Roads Based on Climatic Parameters
(American Society of Civil Engineers, 2009)The aims of the presentation are to discuss the efficiency of the different methods for friction control of winter roads on the safety and accessibility due to climatic conditions, to show that the climate should be an ... -
Case Study of Degrading Permafrost beneath a Road Embankment
(American Society of Civil Engineers, 2009)This paper reports on a case study of degrading permafrost beneath a road embankment in Northern Manitoba, Canada. Field measurements of ground temperatures for a three-year monitoring period have been used in calibrating ... -
New Approach for Surface n Factors
(American Society of Civil Engineers, 2010)Air and surface freezing and thawing indexes and prediction of ground temperatures from air temperatures were investigated. A new method for applying -
Permafrost Weakening as a Potential Impact of Climatic Warming
(American Society of Civil Engineers, 2010)The warming weakening of permafrost strength as a result of different scenarios of climatic warming ranging from 0 to -
High-Performance Vacuum Insulation Panel: Development of Alternative Core Materials
(American Society of Civil Engineers, 2008)Energy efficiency of the built environment greatly depends on the performance of the insulating materials used in the building envelope construction. Vacuum insulation panels (VIPs) offer excellent thermal resistance ... -
Deformation Characteristics of Ventiduct Embankment on Qinghai-Tibet Railway
(American Society of Civil Engineers, 2008)The Qinghai-Tibet railway, the highest railway in terms of elevation, was built under the harshest of weather conditions in the world. A new technique, called the ventiduct embankment, was used for the first time in railway ... -
Distribution and Transport of Fecal Bacteria at Spring Thaw in a Rural Alaskan Community
(American Society of Civil Engineers, 2008)People living without piped water and sewer can be at increased risk for diseases transmitted by the fecal-oral route. One Alaskan community that relies on hauled water and sewage was studied to determine the pathways of ... -
Influence of Route Direction on Thermal Field of Embankments Constructed in High-Altitude Permafrost Area
(American Society of Civil Engineers, 2008)This paper discusses the effect of route direction, embankment height, and pavement type on the thermal field of embankments built in permafrost regions. A finite-element model (FEM) is adopted to simulate diverse conditions ... -
Roca Spur Bridge: The Implementation of an Innovative Deicing Technology
(American Society of Civil Engineers, 2008)The heated deck of Roca Spur Bridge is the first implementation in the world using conductive concrete for deicing. Conductive concrete is a concrete mix containing a certain amount of electrically conductive components ... -
Model for Coupled Liquid Water Flow and Heat Transport with Phase Change in a Snowpack
(American Society of Civil Engineers, 2009)The flow of liquid water in a snowpack is complex because of the coupled processes involved, including the phase change between liquid and solid, and the latent and sensible heat transfer processes. To properly describe ... -
Monitoring River Ice Conditions Using Web-Based Cameras
(American Society of Civil Engineers, 2009)It is necessary to monitor river ice conditions at many northern locations where river ice can pose a risk. Web cameras have been used to monitor real-time ice conditions at hydropower plants, navigation reaches, or locations ... -
Seismic Behavior of Flexural Dominated Reinforced Concrete Bridge Columns at Low Temperatures
(American Society of Civil Engineers, 2009)This paper presents the results from Phase II of an experimental study on the behavior of reinforced concrete bridge columns in cold seismicly active regions. Six half-scale circular reinforced concrete columns, designed ... -
Improvements in Frost Heave Laboratory Testing of Fine-Grained Soils
(American Society of Civil Engineers, 2008)We present a laboratory system designed for studying frost heave in fine-grained soil. The system consists of: a modified refrigerator, a frost heave test cell, a laser for measuring heave, a differential pressure transducer ... -
Cyclic Response of Reinforced Concrete Members at Low Temperatures
(American Society of Civil Engineers, 2008)An experimental study was undertaken to investigate the influence of cold temperatures on the seismic behavior of reinforced concrete members. This paper summarizes the results of Phase I of a multiphase research project ... -
Release of Impurities from Melting Snow Made from Treated Municipal Wastewater
(American Society of Civil Engineers, 2008)To make snow from treated municipal wastewater is one possible polishing treatment method that can be used in cold climates. In this study, the behavior of an artificial snow pile made from treated wastewater was studied. ...