Results 51 to 60 of about 1,899 (176)
Experimental Study to Reinforce The Weak Subgrade Soil For Low-Volume Roads by Coir Geotextile Mats
The construction and maintenance of pavement over the weak subgrade soil become the challenging task to the pavement engineering. One of the major reasons of subgrade failure of pavement is weak subgrade. The weak subgrade soil noticed a Black Cotton (BC)
Harindar Devavath, Shankar S, Dr.
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The impermeable engineering surface layer in the cold regions blocks the water and heat exchange between the foundation soil and the atmospheric environment.
Xiaohui Liu +6 more
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A deep learning framework integrated with a 2D train track bridge simulation model is developed to classify corrugation and ballast faults from vibration signals using time frequency analysis. The method achieves high accuracy and supports predictive maintenance for railway infrastructure.
Shahzor Memon +6 more
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The Application of Fine Sand in Subgrades: A Review
The subgrade serves as the foundation of road construction, typically involving a significant amount of earthwork during its establishment. However, in coastal and desert areas, soil sources are often scarce.
Lingjie Li, Yu Zhang, Yu Tian
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ABSTRACT Decarbonizing the intercity rail in sub‐Saharan Africa requires the use of energy architectures that go beyond traditional grid reliance at the expense of traction performance. This paper introduces a novel photovoltaic (PV)‐assisted hybrid traction topology for a 42 km Pretoria–Sandton rail corridor in South Africa, where between‐rail PV ...
Chinedu T. Obe, Nnamdi I. Nwulu
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Assessing pavement sustainability requires jointly evaluating structural performance and environmental impacts, yet these dimensions are often analyzed separately. This study proposes an integrated framework combining mechanistic–empirical pavement design and life cycle assessment (LCA) to quantify the structural–environmental trade‐off associated with
Alexandre Simas de Medeiros +3 more
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Application of FWD and GPR for Performance Evaluation of In‐Service Roads
Road performance detection typically encompasses structural strength testing and damage assessment, with the resilient modulus serving as a key indicator of structural integrity. To enhance the assessment of road performance, this study explores the combined application of falling weight deflectometer (FWD) and ground penetrating radar (GPR) in ...
Zhi Hu +9 more
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The service performance of subgrade depends on the dynamic resilient modulus (MR) of subgrade soils. Meanwhile, due to complicated conditions such as rainfall infiltration, high temperature evaporation, and groundwater level fluctuations, it can be ...
Gongfeng Xin +4 more
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Thermal Stability Analysis and Novel Cooling Technology Field Tests for Permafrost Railway Subgrades
Global warming has intensified the climatic warming and moistening trend on the Qinghai–Tibet Plateau, threatening the thermal stability of railway subgrades in the plateau permafrost regions. However, previous studies have lacked systematic analyses that comprehensively consider the climate along the railway, permafrost conditions, and subgrade ...
Xiaohe Liu, Jianyong Han
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The rapid increase in the global population has intensified the need for residential areas and civil infrastructure, ultimately leading to construction in areas with less desirable geological conditions. This underscores the necessity for soil improvement. With increasing public concern for environmental issues and the urgent goal of achieving net‐zero
Ching Hung +7 more
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