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Experimental Study on Mechanical Integrity of Cement and EICP-Solidified Soil for Scour Protection of Pile Foundations

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Pubblicato in:Journal of Marine Science and Engineering vol. 13, no. 7 (2025), p. 1323-1347
Autore principale: Cao, Feng
Altri autori: Zhang, Qilin, Qin, Wei, Ouyang Haoran, Li, Zhiyue, Peng Yutao, Dai Guoliang
Pubblicazione:
MDPI AG
Soggetti:
China
Scour protection
Curing
Soybeans
Cement
Compressive strength
Soil erosion
Soil mechanics
Laboratories
Fluidity
Moisture content
Soil
Water content
Curing (processing)
Pile foundations
Soils
Powder
Permeability
Engineering
Soil analysis
Disintegration
Concrete
Deformation
Integrity
Enzymes
Carbonates
Shear strength
Piles
Environmental
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Abstract:Among the scour protection measures for pile foundations, the use of solidified mud has demonstrated effective protection against scour. However, research on the mechanical integrity of this protective measure is relatively scarce. Therefore, a series of experiments were performed on cement-solidified soil and Enzyme-Induced Carbonate Precipitation (ECIP) solidified soil to analyze fluidity, disintegration, and unconfined compressive strength, along with an analysis of influencing parameters. Test results show the following: for cement-solidified soil, fluidity decreases with higher cement content, while its disintegration rate decreases with more cement and its unconfined compressive strength increases with a longer curing time and higher cement content. For ECIP-solidified soil, fluidity decreases with higher soy powder concentration but increases with higher binder solution concentration. ECIP’s initial disintegration rate increases with binder concentration, but after 7 days curing, its disintegration rate decreases with both higher binder concentration and higher soy powder concentration. ECIP’s strength increases with higher soy powder concentration. Crucially, both types of solidified soil exhibit decreased unconfined compressive strength with higher initial water content. The research results can provide a reference for the construction of solidified soil in the field of scour protection.
ISSN:2077-1312
DOI:10.3390/jmse13071323
Fonte:Engineering Database