Results 81 to 90 of about 17,731 (176)

Analysis of Flexible Pavement Structural Behavior Considering Decreased Subgrade Resilient Modulus [PDF]

MATEC Web of Conferences
This research focuses on the subgrade resilient modulus and its significance in investigating flexible pavements. The study compares results obtained from two distinct flexible pavement structures, utilizing numerical analysis using FLAC3D softawere ...
Bouatia Mohammed
doaj   +1 more source

Application of resilient modulus test equipment and procedures for subgrade soils

, 1985
This report is the first part of a two-part series. It describes the techniques involved in, and the results from, resilient modulus testing of subgrade soils that are typically found in Oregon. Two methods of testing were investigated: the triaxial' and

core  

Research on Construction Countermeasures for Freeze–Thaw Deformation of Permafrost Subgrade in Forest Regions of Northeast China

Applied Sciences
The permafrost in forest regions of Northeast China is very sensitive to the disturbance of subgrade construction, which will aggravate the degradation of the permafrost upper limit, leading to freeze–thaw deformation of the permafrost subgrade. Based on
Zhibo Xu, Guihe Wang, Zhu Yang
doaj   +1 more source

The Control of Soil Compaction Degree by Means of LFWD

The Baltic Journal of Road and Bridge Engineering, 2012
Compaction is a method of in situ soil modification to improve its engineering properties. The paper aim is to present the light falling weight deflectometer applied in a laboratory and in situ to the compaction control for noncohesive soils.
Maria Jolanta Sulewska
doaj   +1 more source

Review of Sensor-Based Subgrade Distress Identifications

The attributes of diversity and concealment pose formidable challenges in the accurate detection and efficacious management of distresses within subgrade structures.
Mingzhao Wei, Xiuguang Song, Cong Du, Zhiheng Cheng, Yuan Tian, Zhengjian Xie, Yuqing Peng   +6 more
core   +1 more source

Long Term Behaviour of An Asphalt Pavement Structure Constructed on a Geogrid-Reinforced Subgrade Over Soft Soils

The Baltic Journal of Road and Bridge Engineering, 2019
Many roads with asphalt pavement are being reconstructed every year, as their quality becomes insufficient by the requirements. As it is well- known, old roads were built not in the very best quality, so doing reconstruction projects in the most cases ...
Aurimas Šiukščius, Viktoras Vorobjovas, Audrius Vaitkus, Šarūnas Mikaliūnas, Atis Zariņš   +4 more
doaj   +1 more source

Statewide Statistical Subgrade Characterization

, 1995
This report presents a detailed statistical analysis and graphical presentation of more than 120,000 subgrade modulus values from Minnesota state roads and highways.
Barnes, Randal J., Jankovic, Igor, Colom, David   +2 more
core  

Facile generation and regulation of oxygen vacancies in BiOCl catalysts for effectively photocatalytic degradation of Rhodamine B

Results in Chemistry
Introducing oxygen vacancies (OVs) in BiOCl catalyst has been regarded as an effective strategy in broadening the narrow range of light response and enhance separation efficiency of photo-induced carriers.
Fei Pei, Xin'’e Yan, Jiajie Dong, Youwen Xu, Songyuan Yao, Wei Zhao   +5 more
doaj   +1 more source

An Integrated Multisource and Multiscale Monitoring Technique for Assessing the Health Status of High-Speed Railway Subgrade

Remote Sensing
The precise identification of railway subgrade defects remains a significant challenge for the railway industry globally. Due to the limitations of individual monitoring techniques, comprehensive information on subgrade defects cannot be obtained.
Yuanxingzi He, Yongwei Li, Linrong Xu
doaj   +1 more source

Geostatistics for Subgrade Characterization

, 1993
Subgrade modulus values for roads around the State of Minnesota can be effectively modelled as spatially correlated lognormal random variables. Based upon this geostatistical model, this report presents guidelines and nomographs for selecting the ...
Barnes, Randal J.
core