Author: Publisher:
ISBN:
Category : Water
Languages : en
Pages : 732
Book Description
Selected Water Resources Abstracts
Author: Frost-protected Shallow Foundations
Author: Publisher: DIANE Publishing
ISBN: 1428987029
Category :
Languages : en
Pages : 31
Book Description
Measurement of Frost Heave Forces on H-piles and Pipe Piles
Author: Jerome B. JohnsonPublisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 64
Book Description
The magnitude and variation of forces and shear stresses, caused by frost heaving in Fairbanks silt and the adfreeze effects of a surface ice layer and a gravel layer, were determined as a function of depth by using electric strain gauges along the upper 2.75 m of a pop pile, 30.5-cm I.D. x 0.95-cm wall, and an H-pile, 25.4-cm web x 85 kg/lineal m. The peak frost heaving forces on the H-pile for three consecutive winter seasons (1982-1985) were 752,790 and 802 kN, respectively. Peak frost heaving forces on the pipe pile of 1118 and 1115 kN were determined only for the second and third winter seasons. Maximum average shear stresses acting on the H-pile were 256,348 and 308 kPa during the three winter seasons. Maximum average shear stresses acting on the pipe pile were 627 and 972 kPa for the second and third winter seasons. Ice collars were placed around the tops of both piles during the first and third winter seasons to measure the adfreeze effects of a surface ice layer. The ice layer may have contributed 15 to 20% of the peak forces measured on the piles. A 0.6-m-thick gravel layer replaced the soil around the tops of both piles for the second and third winter seasons to measure the adfreeze effects of a gravel backfill. The gravel layer on the H-pile may have contributed about 35% of the peak forces measured. Maximum heaving forces and shear stresses occurred during periods of maximum cold and soil surface heave magnitude. These were not related to the depth of frost penetration for most of the winter since forst was present at all depths extending to the permafrost table. (mjm).
General Design Standards
Author: United States. Bureau of ReclamationPublisher:
ISBN:
Category : Building
Languages : en
Pages : 222
Book Description
Water Systems Operation and Maintenance Workshop, 1992
Author: Frost Action in Soil Foundations and Control of Surface Structure Heaving
Author: Chester W. JonesPublisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 69
Book Description
Water Systems Management Workshop
Author: Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 534
Book Description
Water Systems Operation and Maintenance Workshop ... Session Notes
Author: Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 588
Book Description
Monthly Catalog of United States Government Publications
Author: Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1092
Book Description