Results 61 to 70 of about 9,019 (250)

Frost Heaving and Induced Pressure of Unsaturated Interfacial Zone between Gravel Ballast and Subgrade

open access: yesApplied Sciences, 2022
Most existing railroads are composed of gravel ballast. One of the major issues with gravel ballast is frost damage in cold regions. Gravelly soils are known to be not prone to frost action due to their low water retention capacity and high hydraulic ...
Jinung Do
doaj   +1 more source

Natural resource base of the Fairbanks North Star Borough [PDF]

open access: yes, 1967
This report on the natural resource base of the Fairbanks North Star Borough is one of several continuing research projects related to community planning in Alaska.
Haring, R.C., Wolff, E.N.
core  

Intercropping mitigates incidence of the oilseed rape insect pest complex

open access: yesPest Management Science, EarlyView.
Intercropping reduces the incidence of the oilseed rape insect pest complex with a significant impact of the direct visual and physical disruption provided by the companion plant. Abstract BACKGROUND Oilseed rape (OSR, Brassica napus) is a major crop requiring numerous phytosanitary treatments.
Laurie Magnin   +3 more
wiley   +1 more source

REDUCTION IN TANGENTIAL FROST HEAVING FORCES BY THE PILE GEOMETRY CHANGE

open access: yesArchitecture and Engineering, 2017
The subject of research is shallow foundations in seasonally freezing soils. One of the main reasons of reaching by foundation structures limit states in the strength and position stability is such hazardous natural phenomenon as the frost heave of soils.
Olga Tretiakova
doaj   +1 more source

Research on Mechanical Model of Canal Lining Plates under the Effect of Frost Heaving Force

open access: yesAdvances in Civil Engineering, 2022
Frost heaving damage of canal lining in cold and dry areas is one of the important causes of canal leakage. In this paper, based on the bending theory of thin plate, a mechanical model of canal lining under the action of frost heaving force is ...
Yantao Liang   +3 more
doaj   +1 more source

Prismatic face slope piles operating under frost heaving

open access: yesMagazine of Civil Engineering, 2023
The effectiveness of piles with reverse surface slope in frost heaving of soil has been the subject of discussion in many papers. In the previous works, the author considered cylindrical piles with an upper reverse taper and calculation method for the ...
Tretiakova Olga
doaj   +1 more source

A study on Mechanical Seepage Characteristics of Coal‐Rock Mass Under the Combined Action of Multiple Factors

open access: yesSafety Science and Technology, EarlyView.
Schematic diagram of a triaxial fluid–solid coupling device based on the mapping function. ABSTRACT In deep coal mining, the influence of temperature–pressure coupling on the mechanical properties of coal is a crucial factor inducing dynamic disasters.
Musen Gao, Heng Ma, Xiaoqi Wang, Ke Gao
wiley   +1 more source

Public Perceptions of the Midwest’s Pavements - Wisconsin - Phase I (Winter Ride) [PDF]

open access: yes, 2001
The Wisconsin Winter Ride Survey was designed to determine the extent to which drivers were tolerant of the rougher ride of pavements on rural two-lane highways in the winter.
Marquette University,Department of Civil, Construction, and Environmental Engineering
core   +1 more source

“I'm a Good Guy Who Deserves Better, Yet Nobody Wants to Give me Better”: The Accounts of Nice Guys

open access: yesSymbolic Interaction, EarlyView.
Within Western popular culture and online discourse, a “Nice Guy” is someone who enacts niceness for which they believe they are owed, deserving of, or entitled to something in return—especially the romantic or sexual attention of women. In this study, we examine the use of accounts in personal narratives told in an anonymous online discussion forum ...
Brooke Weinmann, Dennis D. Waskul
wiley   +1 more source

Frost heaving of Picea abies seedlings as influenced by soil preparation, planting technique, and location along gap-shelterwood gradients

open access: yesSilva Fennica, 2009
The effects of soil preparation, planting technique and location along gap-shelterwood gradients (position and orientation) on frost heaving damage to seedlings were studied in Vindeln Experimental Forests, northern Sweden. The forest was harvested in
Chantal, Michelle   +4 more
doaj   +1 more source

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