Results 51 to 60 of about 17,731 (176)

Experimental Study on Trenchless Treatment Technology of Differential Settlement of In-Service Highway Subgrade in Deep Soft Soil Area

Buildings
The highway network is densely distributed in the southeast coast of China. Highway subgrades passing through soft soil areas often produce large settlements, resulting in pavement cracking, bridgehead jumping, and other diseases.
Jianqiang Xu, Tiangong Zhang, Shasha Zhang, Mengjie Wang, Xiaohua Yang, Feng Xu   +5 more
doaj   +1 more source

Dynamic Response and Stability Analysis of High-Speed Railway Subgrade in Karst Areas

IEEE Access, 2021
The increase in railway coverage significantly increased the railway mileage in karst areas. However, the fragile ecosystem in karst areas and weak mechanical performance in cavities cause hidden railway safety hazards.
Li Xin, Bai Mingzhou, Wei Zijun, Li Pengxiang, Shi Hai, Zhang Ye   +5 more
doaj   +1 more source

Time‐Dependent Settlement Model for Driven Piles Using Hybrid Finite Element‐Artificial Neural Network and Regression Approaches

Engineering Reports, Volume 8, Issue 9, September 2026.
This study investigates time‐dependent settlement of pile foundations. A hybrid framework combining Artificial Neural Networks and Finite Element Modeling was developed to derive an empirical equation for the pile‐soil system stiffness evolution over time. The model was validated and calibrated using laboratory test data.
Gbênihon Céleste‐Amour Kenoukon, Joseph Ng'ang'a Thuo, Kiplagat Chelelgo, Alphonce Ayado Owayo   +3 more
wiley   +1 more source

A Sliding Time‐Window Energy Ratio Method for Weak Signal Enhancement of Deep Subgrade Voids in GPR Data

Applied Research, Volume 5, Issue 4, August 2026.
A sliding time‐window energy ratio method is proposed to enhance weak GPR reflections from deep pavement voids. By combining target‐window localization with same‐window normalization, STWER suppresses non‐target interference and improves defect localization, as demonstrated by numerical simulations and field cases verified by excavation and core ...
Zhengnan Liu, Wanli Chao, Qishun Wang, Yuan Liu, Xiang Qiu   +4 more
wiley   +1 more source

Field‐Validated Predictive Model for Strain Modulus of Dispersive Clay Stabilized With a Waste Calcium Composite for Sustainable Subgrade Design

Engineering Reports, Volume 8, Issue 7, July 2026.
A field‐validated predictive model accurately estimates the strain modulus of waste calcium composite‐stabilized dispersive clay. The model provides a reliable, sustainable, and cost‐effective tool for subgrade design, reducing dependence on extensive field testing while improving pavement performance.
Farhan Ali, Hassan Mujtaba, Khalid Farooq, Zubair Masoud   +3 more
wiley   +1 more source

Optimal sand transport roadbed geometry structure of Taklamakan Desert highway

Frontiers in Earth Science
In order to obtain the optimal geometric structure for sand transport in desert roads, this study fully utilizes the natural sand transport capacity of the desert roads, aiming to reduce occurrences of road damage due to sand burial.
Yaliang Wang, Jianjun Cheng, Yuanfeng An, Ruoyuan Zhang   +3 more
doaj   +1 more source

Economic Potential of Reusing Construction and Demolition Waste (CDW) as Aggregates in Retrofit Projects

Environmental Quality Management, Volume 36, Issue 1, July 2026.
ABSTRACT This study investigates the technical and economic feasibility of reusing Class A Construction and Demolition Waste (CDW) in urban retrofit projects in Recife, Pernambuco. The research focuses on the production of recycled aggregates for soil stabilization in foundations, a geotechnical application seldom explored in retrofit contexts.
Amanda Grazielle Rodrigues de Arruda, Kalinny Patrícia Vaz Lafayette, Carlos Felipe Aschoff Fernandes, Diogo Henrique Fernandes da Paz, Jonas da Silva Bezerra   +4 more
wiley   +1 more source

Study on the impact of moisture content on subgrade strength [PDF]

, 2015
This study presents the relationship between subgrade strength and moisture content. Major function of subgrade is to provide support to pavement. Subgrade soil type, compacted density and moisture significantly affect pavement design.
Sabri, Isma Lebbe Mohamed
core   +1 more source

Intensifying Climate Extremes Over the Tibetan Plateau: Past–Future Changes and Implications for Railway Infrastructure

Earth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Climate extremes over the Tibetan Plateau (TP) are intensifying and can threaten high‐altitude railways by altering permafrost stability, freeze–thaw regimes, drainage pressure, and hydro‐geomorphic hazards, yet their evolution for railways remains insufficiently quantified. Using CN05.1 observations (1961–2022) and an evaluated NEX‐GDDP‐CMIP6
Bohao Li, Kai Liu, Yan Tong, Wanying Zhang, Yanfang Wang, Linmei Zhuang, Yichen Yan, Weihua Zhu, Yuanhang Yang, Ming Wang   +9 more
wiley   +1 more source

Theoretical Analysis and Experimental Study of Subgrade Moisture Variation and Underground Antidrainage Technique under Groundwater Fluctuations

Journal of Applied Mathematics, 2013
Groundwater is a main natural factor impacting the subgrade structure, and it plays a significant role in the stability of the subgrade. In this paper, the analytical solution of the subgrade moisture variations considering groundwater fluctuations is ...
Liu Jie, Hailin Yao, Pan Chen, Zheng Lu, Xingwen Luo   +4 more
doaj   +1 more source