Results 11 to 20 of about 17,731 (176)

Road pavement defect investigation using treated and untreated expansive road subgrade materials with varying plasticity index [PDF]

open access: yes, 2022
Road pavement defect has been a major issue in the construction industry leading to a high cost of maintenance and sometimes a total reconstruction of the road. Expansive road subgrade materials are one of the major causes of these road defects.
Booth, Colin A.   +2 more
core   +1 more source

The Influence of Subgrade Subsidence on Train Track Dynamic Interaction [PDF]

open access: yes, 2012
Railways 2012 The First International Conference on Railway Technology: Research, Development and Maintenance Las Palmas de Gran Canaria, Spain 18-20 April 2012This paper reports results from a numerical model to calculate subgrade settlement in ...
E.J. OBrien   +5 more
core   +1 more source

Effects of Differential Subgrade Settlement on Slab Track Deformation Based on a DEM-FDM Coupled Approach

open access: yesApplied Sciences, 2021
Slab track structures become deformed under the effects of differential subgrade settlement. According to the properties of the China Railway Track System (CRTS) II slab track on a subgrade, a three-dimensional (3D) coupled model based on both the ...
Xuhao Cui   +4 more
doaj   +1 more source

Effects of u-shaped subgrade concrete panel on subgrade deformation [PDF]

open access: yes, 2019
California Bearing Ratio of subgrade lesser than 5% requires a treatment work either by stabilisation or strengthening method. In this study, the latter concept was chosen for the application of U-shaped Subgrade Concrete Panel as it is a method that has
Sam, A. R. M.   +8 more
core   +1 more source

Condition assessment of lower roadway layers for pavement management systems

open access: yesJournal of Civil Engineering and Management, 2016
The process of selecting road maintenance technologies for the Pavement Management System (PMS) can use road pavement moduli of deformation as the substantiating information.
Andrzej Pożarycki
doaj   +1 more source

Investigation of Water and Soil Migration and Mud Pumping of Subgrades under Traffic Load

open access: yesAtmosphere, 2023
Atmospheric precipitation leads to the increase of moisture in the subgrade. The moisture and soil migration in subgrade is a key scientific problem in evaluating the service performance of the subgrade and resolving or preventing mud pumping.
Lin Wang   +3 more
doaj   +1 more source

Calculation and Control Methods for Equivalent Resilient Modulus of Subgrade Based on Nonuniform Distribution of Stress

open access: yesAdvances in Civil Engineering, 2019
The resilient modulus of subgrade is a design parameter of the pavement structure, which is significantly affected by the overlying load and traffic load.
Yongsheng Yao   +4 more
doaj   +1 more source

Study on Cold Resistance Performance of Composite Subgrade Structure in Seasonal Frozen Regions

open access: yesApplied Sciences, 2020
In order to achieve the purpose of subgrade frost damage control and waste utilization, this paper proposes a specific kind of composite subgrade structure which is suitable for subgrade in seasonal frozen regions, especially wet subgrade.
Leilei Han   +4 more
doaj   +1 more source

Study on the In Situ Test of the Treatment Effect for the Riverbank Soft Soil Subgrade in the Hetao Area

open access: yesGeofluids, 2022
The Inner Mongolia Hetao area has a widely distributed riverbank fluvial soft soil with high groundwater levels and ground surface water. This situation may incur some potential engineering problems for the Linhe-Baigeda section of the Beijing-Xinjiang ...
Shen Zuo   +4 more
doaj   +1 more source

Effects of principal stress axis rotation on cyclic deformation characteristics of rail track subgrade materials [PDF]

open access: yes, 2017
Cumulative plastic deformation of rail track subgrade materials under moving wheel load is a complex problem. The plastic deformation and resilient modulus of subgrade material subjected to moving wheel load are a function of Principal Stress Axis ...
Tatsuya Ishikawa   +7 more
core   +1 more source

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