Experimental Study on the Influence of Particle Gradation on the Resistivity Characteristics of Saturated Coral Sand

被引：0
作者：
Zhou, Zhenglong [1 ,2 ]
Zhang, Haitao [1 ]
Zhao, Zelong [1 ]
Hang, Tianzhu [1 ]
机构：
[1] Nanjing Tech Univ, Inst Geotech Engn, Nanjing 211800, Peoples R China
[2] Nanjing Tech Univ, Coll Civil Engn, Nanjing 211800, Peoples R China
来源：
JOURNAL OF MARINE SCIENCE AND ENGINEERING | 2025年 / 13卷 / 02期
基金：
中国国家自然科学基金;
关键词：
saturated coral sand; particle gradation; resistivity; structural factor; ELECTRICAL-RESISTIVITY; SOIL; CONDUCTIVITY; SHAPE;
D O I：
10.3390/jmse13020255
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
Due to the action of hydraulic sorting, coral sands in different engineering site areas usually have different particle gradations. To explore the impact of particle gradation on the resistivity characteristics of saturated coral sand, an experimental study was conducted on the effects of the coefficient of uniformity Cu, the mean particle size d50, and the fines content Fc on the resistivity characteristics of saturated coral sand. The results show that under the same porosity, the resistivity of saturated coral sand gradually decreases with the increase in Cu, increases with the increase in d50, and first decreases and then increases with the increase in Fc. When Fc equals 20%, the resistivity of saturated coral sand is at its minimum. To eliminate the influence of pore fluid on the resistivity characteristics, a structural factor was introduced to evaluate the resistivity characteristics of saturated coral sand, and a prediction model for the structural factor of saturated coral sand considering the gradation effect as a function of porosity was established.
引用
收藏
页数：14
相关论文
共 41 条
  • [1] Wang A.G., Zhang Z.H., Liu K.W., Xu H.Y., Shi L., Sun D.S., Coral aggregate concrete: Numerical description of physical, chemical and morphological properties of coral aggregate, Cem. Concr. Compos, 100, pp. 25-34, (2019)
  • [2] Chen G.X., Qin Y., Ma W.J., Liang K., Wu Q., Juang C.H., Liquefaction susceptibility and deformation characteristics of saturated coral sandy soils subjected to cyclic loadings–a critical review, Earthq. Eng. Eng. Vib, 23, pp. 261-296, (2024)
  • [3] Fang Y., Guo B.B., Wu Q., Zhou Z.L., Chen G.X., Dynamic deformation characteristics of saturated coral sand incorporating fines content under drained conditions, Case Stud. Constr. Mater, 20, (2024)
  • [4] Ma W.J., Qin Y., Zhao K., Chen G.X., Comparisons on liquefaction behavior of saturated coral sand and quartz sand under principal stress rotation, Marine Georesour. Geotechnol, 40, pp. 235-247, (2022)
  • [5] Ruan B., Guo Y., Zhou Z.L., Cheng K., Liu K., Wu Q., Huang H., Prediction of dynamic shear modulus of saturated coral sand based on explainable artificial intelligence, Constr. Build. Mater, 461, (2025)
  • [6] Alnmr A., Ray R.P., Review of the effect of sand on the behavior of expansive clayey soils, Acta Tech. Jaurinensis, 14, pp. 521-552, (2021)
  • [7] Alnmr A., Ray R.P., Investigating the Impact of Varying Sand Content on the Physical Characteristics of Expansive Clay Soils from Syria, Geotech. Geol. Eng, 42, pp. 2675-2691, (2024)
  • [8] Xiao X., Guan X., Wu Q., Zhao D., Zhou R., Chen G., Energy-based method for the failure criterion and resistance evaluation of marine clay under cyclic loading, Eng. Geol, 344, (2025)
  • [9] Chen Y.Y., Tian Y., Guan Y.F., Liu R.M., Han X., Zhao X.Q., Study on the mechanical properties of coral sands with different particle gradations, Mar. Georesources Geotechnol, 41, pp. 327-338, (2023)
  • [10] Guo S.Y., Cui J., Yi S., Li Y.D., Chen K.L., Yang K.Z., Experimental Study on Liquefaction Characteristics of Coral Gravelly Soils with Different Particle Size Distributions, J. Mar. Sci. Eng, 11, (2023)
12345