Specific Features of Constructing Underground Hydraulic Structures in Permafrost Conditions

Winter Road Construction Techniques

Design Considerations for Airfields in NPRA

Temporary Protection of Cold Weather Construction
The literature of cold weather construction documents the importance of providing temporary protection of projects during the winter in northern regions. A survey of Alaskan contractors...

Motion of Suspended Bridge Spans under Gusty Wind
The buffeting response of suspended-span bridges can be calculated if certain wind-tunnel section model data, plus wind spectral information, are provided. The needed wind tunnel data...

Foundation Bearing in Weathered Rock

Structural Characteristics of Weathered Plywood
Plywood exposed for more than 21 yr to continuous weathering and use as the roof decking of portable hog houses was found to have strength properties comparable to those expected in new...

Thermal Analysis of Frozen Embankment Islands
A two-dimensional finite element analysis of the thermal state of man-made frozen islands is presented. The model includes an air-ground interface energy exchange simulator that incorporates...

Augmentation of 1968-1972 Winter Storms in New Mexico
Scientific studies on winter orographic cloud seeding were conducted in the Jemez Mountains of northern New Mexico during the winters of 1968-1969 through 1971-1972. The objective specific...

Predicting Wind-Induced Response in Hurricane Zones
The procedure appropriate for regions where available wind data are representative of the strong wind climate, as is in regions where extreme winds are due mainly to large-scale weather...

Simulation Model for Evapotranspiration of Wheat: Effect of Evaporative Conditions
A simulation model for tracing soil moisture fluctuations under irrigated wheat in a semi-arid climate is presented. The model is based on a function relating evapotranspiration to soil...

Physicochemical Properties of Dredge Spoil
Physicochemical changes resulting from the subaerial exposure of dredge spoil during land disposal were investigated using five fine-grain bottom sediment samples from the lower Great...

Materials and Specification for Marine Structures

Stochastic Scheduling of Linear Construction Sites
Essential basic data of scheduling linear construction sites are subject to stochastically variable influence factors, e.g., weather conditions. To evaluate economical low-cost alternatives...

Brittle Failure of Steel Stack
Causes of brittle fracture of brick lined steel stack are examined. Recommendations to avoid such fracture are presented. It is shown that failure of such stack can occur in very cold...

Center Pivot Design Capacities in Eastern Colorado
Design system capacities were developed for center pivot sprinklers irrigating corn in the Central Great Plains by simulating irrigations for 60 yr of climatic data collected at Akron,...

Weather Modification for Use in High Plains
The users decision process on whether or not to utilize weather modification is not the same as the decision process involved in a scientific experiment. A decision to use weather modification...

Aguada Blanca Rockfill Dam with Metal Facing
The 148-ft (45-m) high, steel faced Aguada Blanca rockfill dam is described. After a few general data on the hydraulic scheme, dam and appurtenant structures, local climate, and geology...

Use of Precision Gravity Survey to Determine Bedrock
The density contrast between a deeply weathered schist and a marble which contains a small percentage less than 5% of clay-filled solution channels allows differentiation between the two...

National Weather Service River Forecasting System
The National Weather Service River Forecast System describes a method and details computer programs of efficient operational use of a conceptual hydrologic model for river forecasting....

 

 

 

 

Return to search