Results 71 to 80 of about 17,731 (176)

Fly Ash Soil Stabilization for Non-Uniform Subgrade Soils, Volume II: Influence of Subgrade Non-Uniformity on PCC Pavement Performance [PDF]

, 2005
To provide insight into subgrade non-uniformity and its effects on pavement performance, this study investigated the influence of non-uniform subgrade support on pavement responses (stress and deflection) that affect pavement performance.
Rupnow, Tyson, Ceylan, Halil, Harrington, Dale, White, David   +3 more
core  

The effect of seismic action on stability of saline soil subgrade in cold region based on isothermal stratification method

Earthquake Research Advances
With the change of seasons, the shear strength of saline soil subgrade filler will change with the change of external temperature, which will aggravate the adverse effects of seismic on the subgrade.
Jie Cheng, Yu Zhang, Ying Ma, Xuerui Chen, Ning An   +4 more
doaj   +1 more source

Computed Tomographic Grading of Ear Diseases in Guinea Pigs (Cavia porcellus)

Veterinary Radiology &Ultrasound, Volume 67, Issue 2, March 2026.
ABSTRACT Ear disease affecting the external and middle ears is a significant health concern in guinea pigs, which can be clinically silent and, if left untreated, can lead to severe and irreversible complications. Computed tomography (CT) is the primary imaging modality used to diagnose otitis in other species, particularly otitis media (OM).
Tara Brennan, Marine Beauvois, Charly Pignon, Thomas Coutant, Patricia Muffat‐es‐Jacques, Elsa Penel, Eymeric Gomes, Mihn Huynh, Harriet Hahn   +8 more
wiley   +1 more source

Subgrade on High-speed Lines [PDF]

, 2013
W artykule scharakteryzowano podtorze gruntowe i jego przydatność na liniach kolejowych dużych prędkości. Przedstawiono podstawowe wymagania dla takiego podtorza, a także zalecenia dotyczące projektowania, budowy i utrzymania podtorza.
Skrzyński, E.
core  

Chemical Use for Subgrade Modification of Soils [PDF]

, 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   +1 more source

Subgrade performance assessment for rigid runway using long-term pavement performance database

Transport
Maintaining desired subgrade performance is an effective way to reduce runway pavement deterioration. Due to lack of extensive field test data, life-cycle performance of runway subgrade has not been fully understood.
Guo-Guang Liu, Lei-Yang Pei, Zhi-Wei Wu
doaj   +1 more source

Evaluation systems for service performance of subgrade engineering in permafrost regions

Journal of Infrastructure Preservation and Resilience
The quantitative evaluation of subgrade service performance is one of the key challenges for road construction in cold regions, and is essential to selection and decision of subgrade structure. Based on relevant specifications and literatures, this paper
Jiankun Liu, Bowen Tai, Xu Li
doaj   +1 more source

Behavior and Control of the Ballastless Track-Subgrade Vibration Induced by High-Speed Trains Moving on the Subgrade Bed with Mud Pumping

Shock and Vibration, 2019
This paper investigates behavior and control of the ballastless track-subgrade vibration induced by high-speed trains under mud pumping occurring in the subgrade bed.
Junjie Huang, Qian Su, Ting Liu, Wei Wang   +3 more
doaj   +1 more source

Comparative evaluation of geotechnical properties of red tropical soils and anthills from parts of Edo State for road construction

Journal of Applied Sciences and Environmental Management, 2018
Geotechnical tests were carried out on a total of six samples of red tropical soils developed over sedimentary and Basement terrains, made up of three soils and three termite hills samples.
O Andre-Obayanju, O.J. Imarhiagbe, T.U.S. Onyeobi   +2 more
doaj   +1 more source

Subgrade uplift prediction along a high-speed railway using machine learning techniques in Sichuan, China

Frontiers in Earth Science
In the red-bed areas of southwestern China, subgrade uplift deformation poses a serious safety concern for high-speed trains. However, the subgrade uplift mechanisms are still not well-defined, and there is a lack of effective prediction methods for ...
Hongyi Yan, Xiaoyan Zhao, Liming Jian, Ruixin Long, Dian Xiao, Minghao Chen   +5 more
doaj   +1 more source