Published

2019-07-01

Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China

Estudio sobre las características microscópicas del cemento ferruginoso del bosque de tierra Banguo en el área de Yuan mou, Yunnan, China

DOI:

https://doi.org/10.15446/esrj.v23n3.81911

Keywords:

Earth forest, Ferruginous cement, SEM, EDS, Clay, Spherical iron compound, (en)
bosque de tierra, cemento ferruginoso, SEM, EDS, arcilla, compuesto de hierro esférico, (es)

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Authors

  • Penghui Luo Kunming University of Science and Technology - Faculty of Land Resources Engineering
  • Shitao Zhang Kunming University of Science and Technology - Faculty of Land Resources Engineering
  • Yimin Tian Kunming University of Science and Technology - Faculty of Land Resources Engineering
  • Fei Ding Kunming prospecting design Institute of China nonferrous metal Industry Co., Ltd
  • Zongming Xu Kunming prospecting design Institute of China nonferrous metal Industry Co., Ltd

The column height of earth forest is generally 8~30m in yuanmou county of yunnan province, which is far higher than the self-supporting height of general soil column. Ferruginous cement is an important reason for formation of the tall and erect columnar soil. Macroscopic physical and mechanical tests confirmed that the strength of the stratum containing ferruginous cement was much higher than that of the formation without ferruginous cement. The microstructure and morphology of ferruginous cement were analyzed by SEM and EDS. It is found that ferruginous cement is mainly composed of iron compounds and clay minerals, which only exists in certain stratum. In the process of growth, Iron compounds chemically bond with clay minerals during growth to form ferruginous cements, which first form unique sphere on the surface of particles or clay minerals. It then clumps together and fills the spaces between the particles. Finally, the dispersed particles are connected together to form a stable lamellar spatial structure, which greatly improves the strength of the soil. Through the study of ferruginous cement, the mechanism of this natural curing agent is understood, which enriches the research content in this field.

La altura de la columna del bosque de tierra es generalmente de 8 ~ 30 m en el condado de Yuanmou, provincia de Yunnan, que es mucho más alta que la altura autoportante de la columna de suelo general. El cemento ferruginoso es una razón importante para la formación del suelo columnar alto y erecto. Las pruebas físicas y mecánicas macroscópicas confirmaron que la resistencia del estrato que contiene cemento ferruginoso fue mucho mayor que la de la formación sin cemento ferruginoso. La microestructura y la morfología del cemento ferruginoso fueron analizadas por SEM y EDS. Se encuentra que el cemento ferruginoso se compone principalmente de compuestos de hierro y minerales arcillosos, que solo existen en ciertos estratos. En el proceso de crecimiento, los compuestos de hierro se unen químicamente con minerales de arcilla durante el crecimiento para formar cementos ferruginosos, que primero forman una esfera única en la superficie de partículas o minerales de arcilla. Luego se agrupa y llena los espacios entre las partículas. Finalmente, las partículas dispersas se conectan entre sí para formar una estructura espacial laminar estable, que mejora en gran medida la resistencia del suelo. A través del estudio del cemento ferruginoso, se comprende el mecanismo de este agente de curado natural, que enriquece el contenido de la investigación en este campo.

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How to Cite

APA

Luo, P., Zhang, S., Tian, Y., Ding, F. and Xu, Z. (2019). Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China. Earth Sciences Research Journal, 23(3), 191–198. https://doi.org/10.15446/esrj.v23n3.81911

ACM

[1]
Luo, P., Zhang, S., Tian, Y., Ding, F. and Xu, Z. 2019. Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China. Earth Sciences Research Journal. 23, 3 (Jul. 2019), 191–198. DOI:https://doi.org/10.15446/esrj.v23n3.81911.

ACS

(1)
Luo, P.; Zhang, S.; Tian, Y.; Ding, F.; Xu, Z. Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China. Earth sci. res. j. 2019, 23, 191-198.

ABNT

LUO, P.; ZHANG, S.; TIAN, Y.; DING, F.; XU, Z. Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China. Earth Sciences Research Journal, [S. l.], v. 23, n. 3, p. 191–198, 2019. DOI: 10.15446/esrj.v23n3.81911. Disponível em: https://revistas.unal.edu.co/index.php/esrj/article/view/81911. Acesso em: 17 feb. 2025.

Chicago

Luo, Penghui, Shitao Zhang, Yimin Tian, Fei Ding, and Zongming Xu. 2019. “Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China”. Earth Sciences Research Journal 23 (3):191-98. https://doi.org/10.15446/esrj.v23n3.81911.

Harvard

Luo, P., Zhang, S., Tian, Y., Ding, F. and Xu, Z. (2019) “Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China”, Earth Sciences Research Journal, 23(3), pp. 191–198. doi: 10.15446/esrj.v23n3.81911.

IEEE

[1]
P. Luo, S. Zhang, Y. Tian, F. Ding, and Z. Xu, “Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China”, Earth sci. res. j., vol. 23, no. 3, pp. 191–198, Jul. 2019.

MLA

Luo, P., S. Zhang, Y. Tian, F. Ding, and Z. Xu. “Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China”. Earth Sciences Research Journal, vol. 23, no. 3, July 2019, pp. 191-8, doi:10.15446/esrj.v23n3.81911.

Turabian

Luo, Penghui, Shitao Zhang, Yimin Tian, Fei Ding, and Zongming Xu. “Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China”. Earth Sciences Research Journal 23, no. 3 (July 1, 2019): 191–198. Accessed February 17, 2025. https://revistas.unal.edu.co/index.php/esrj/article/view/81911.

Vancouver

1.
Luo P, Zhang S, Tian Y, Ding F, Xu Z. Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China. Earth sci. res. j. [Internet]. 2019 Jul. 1 [cited 2025 Feb. 17];23(3):191-8. Available from: https://revistas.unal.edu.co/index.php/esrj/article/view/81911

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