Results 101 to 110 of about 13,524 (233)

Influence of subgrade improvement and non-uniformity on pavement performance

open access: yes, 2004
This thesis contains results from three projects describing self-cementing fly ash stabilization of RAP-soil mixtures, stabilization of limestone screenings for use as a structural layer in road construction, and finite element modeling results of ...
Rupnow, Tyson
core   +1 more source

Research on the Deformation Mechanism of Railway Subgrade under Buried Strike–Slip Fault Dislocation

open access: yesApplied Sciences
With the gradual densification of China’s railway network, more and more railways are inevitably crossing active fault zones. Creep dislocation and stick–slip dislocation of the fault zones can lead to uneven deformation and cracks in the railway ...
Jingwei Liang   +4 more
doaj   +1 more source

Analysis on Stability of Subgrade Slope Influenced by Strength Attenuation

open access: yes, 2011
The water content in the subgrade changes easily as the variation of the environment water, which causes the strength attenuation of the subgrade. It is harmful to the stability of subgrade slope.
Song Gen Wang   +3 more
core   +1 more source

Study on intelligent recognition of urban road subgrade defect based on deep learning

open access: yesScientific Reports
China's operational highway subgrades exhibit a trend of diversifying types and an increasing number of defects, leading to more frequent urban road safety incidents. This paper starts from the non-destructive testing of urban road subgrade defects using
Yanli Qi   +5 more
doaj   +1 more source

Seasonal and Spatial Variation of Subgrade Response

open access: yes, 2000
Temperature, subgrade moisture content, and Falling Weight Defleetometer (FWD)-deflection data were collected monthly on four asphalt pavement test sections in Kansas for a year. The subgrade moduli were baekealeulated using the elastic layer theory.
Hossain, Mustaque   +2 more
core  

Pile lateral subgrade reaction modulus for Jakarta

open access: yes, 2019
The behavior of laterally loaded piles could be simulated by the subgrade reaction model. The primary soil parameter for this model is the subgrade reaction modulus, and in this paper, the correlation between the subgrade reaction modulus and the soil N ...
Saskia Nadilla, Widjojo Adi Prakoso
core   +1 more source

Chemical Use for Subgrade Modification of Soils

open access: yes, 2012
This session will discuss the use of chemicals to enhance the geotechnical behavior of subgrade material. The session will cover latest changes in INDOT specs for subgrade treatment (SEC 207), chemical modification (SEC 215) and Soils Treatment Materials
Khan, Athar
core  

Quality control of subgrade soil using intelligent compaction

open access: yes, 2016
Intelligent Compaction (IC) of subgrade soil has been proposed to continuously monitor the stiffness of subgrade during its compaction. Modern IC rollers are vibratory compactors equipped with (1) an onboard measuring system capable of estimating the ...
Singh, Dharamveer   +6 more
core   +1 more source

Study on static characteristics of a novel prestress-reinforced railway subgrade

open access: yesRailway Engineering Science
Understanding the reinforcement effect of the newly developed prestressed reinforcement components (PRCs) (a system composed of prestressed steel bars (PSBs), protective sleeves, lateral pressure plates (LPPs), and anchoring elements) is technically ...
Junli Dong   +5 more
doaj   +1 more source

Subgrade characterization for highway pavement design. [PDF]

open access: yes
State Study 131Subgrade soil characterization expressed in terms of Resilient Modulus (MR) has become crucial for pavement design. For a new design, MRvalues are generally obtained by conducting repeated triaxial tests on reconstituted/undisturbed ...
George, K. P.   +2 more
core  

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