ArticlePolymers2022
Laboratory Experiments and Numerical Simulation Study of Composite-Material-Modified Loess Improving High-Speed Railway Subgrade.
Article in Polymers, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 17 citations in OpenAlex.
- Study on the combination of lime and lignin in the improvement of mechanical properties of loess in Ili area, China.PloS one · 2026Article
- Study on Compression Properties and Construction Applications of Loess Filling Materials for High Embankments Along G85 Expressway in Eastern Gansu Province.Materials (Basel, Switzerland) · 2025Article
- Permeability and Disintegration Characteristics of Loess Solidified by Guar Gum and Basalt Fiber.Materials (Basel, Switzerland) · 2024Article
- Study on the Shear Strength of Loess Solidified by Guar Gum and Basalt Fiber.Materials (Basel, Switzerland) · 2024Article
- Article
- Experimental study on basic engineering properties of loess improved by burnt rock.Scientific reports · 2023Article
- Polymeric Composites in Road and Bridge Engineering: Characterization, Production and Application.Polymers · 2023Article
- Mechanical Characterization and Constitutive Modeling of Nano-Stabilized Soil under Uniaxial Compression.Materials (Basel, Switzerland) · 2023Article
- Long-term monitoring and analysis of the longitudinal differential settlement of an expressway bridge-subgrade transition section in a loess area.Scientific reports · 2022Article
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Authors and funding
5 authors at 1 institution in 1 country.
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Abstract
Construction of high-speed railway subgrade on loess soils in the Loess Plateau is risky because such soil is susceptible to differential settlements. Various soil-improvement methods have been used to enhance the mechanical properties of loess. Lime-ash soil and cement-lime soil are the most commonly used methods in the improvement of loess subgrade, while few studies have been found on loess subgrade improvement by using composite material consisting of traditional materials and new materials. A series of direct shear tests and unconfined compressive tests were conducted on the loess specimen with the addition of three kinds of composite materials: traditional material cement, new material polypropylene fiber and SCA-2 soil curing agent. The numerical simulation was conducted on loess subgrade in an actual engineering practice. The experimental results show that cement, polypropylene fiber and SCA-2 soil curing agent can effectively improve the shear strength and compressive strength of loess, and the influence degree is cement > fiber > curing agent. Additionally, based on the relative strength characteristics of the improved loess, an optimal improvement scheme for the composite-material-modified loess was obtained: 16% cement content + 0.5% fiber content + 4% curing agent content. The numerical simulation results revealed that the compressive strength index of the improved loess has a significant impact on the subgrade settlement, and the optimal improvement scheme obtained from comprehensive analysis can effectively improve the settlement of high-speed railway subgrade under vibration load.
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