Published

2020-01-01

Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area

Estudio sobre la fuerza interna de la geomembrana del relleno sanitario en un área contaminada con metales pesados

DOI:

https://doi.org/10.15446/esrj.v24n1.85231

Keywords:

Geomenbrane, stress, clay interface. (en)
Geomembrana, esfuerzo, interfaz de arcilla. (es)

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Authors

  • Hongzhou Zhang Institute of Architectural Civil Engineering, Langfang Normal University, Langfang, 065000, China

In order to analyze the tension stress of Geomembrane in the seepage control system of landfill in heavy metal contaminated area under the action of the overlying landfill weight, the internal force of Geomembrane in landfill is studied in this paper. Firstly, according to the internal force analysis of Geomembrane model, the basic equation of Geomembrane is obtained, and the equation is analyzed by finite difference numerical solution, so as to analyze the internal force of Geomembrane in landfill. The method can analyze three stress states of Geomembrane-clay interface at different positions: elastic state, softening state and residual state, which makes the stress analysis of Geomembrane on landfill slope more reasonable. Parametric analysis shows that when the strength loss and the difference between residual displacement and peak displacement are small in the softening stage, the peak strength of Geomembrane-clay interface has little influence on the maximum tensile stress of Geomembrane, and its residual strength is the main controlling factor; and when the softening characteristics of Geomembrane-clay interface are obvious, the influence of peak strength and residual displacement is more obvious.

Con el fin de analizar el esfuerzo de tensión de Geomembrane en el sistema de control de infiltración de vertederos en áreas contaminadas con metales pesados bajo la acción del peso del vertedero suprayacente, en este documento se estudia la fuerza interna de Geomembrane en los vertederos. En primer lugar, de acuerdo con el análisis de fuerza interna del modelo de Geomembrana, se obtiene la ecuación básica de Geomembrane, y la ecuación se analiza por solución numérica de diferencia finita, para analizar la fuerza interna de Geomembrane en el relleno sanitario. El método puede analizar tres estados de tensión de la interfaz de Geomembrana-arcilla en diferentes posiciones: estado elástico, estado de reblandecimiento y estado residual, lo que hace que el análisis de tensión de Geomembrana en la pendiente del vertedero sea más razonable. El análisis paramétrico muestra que cuando la pérdida de resistencia y la diferencia entre el desplazamiento residual y el desplazamiento máximo son pequeñas en la etapa de reblandecimiento, la resistencia máxima de la interfaz Geomembrana-arcilla tiene poca influencia en el esfuerzo de tensión máximo de Geomembrane, y su resistencia residual es el principal factor de control; y cuando las características de ablandamiento de la interfaz Geomembrana-arcilla son obvias, la influencia de la resistencia máxima y el desplazamiento residual es más obvia.

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How to Cite

APA

Zhang, H. (2020). Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area. Earth Sciences Research Journal, 24(1), 111–118. https://doi.org/10.15446/esrj.v24n1.85231

ACM

[1]
Zhang, H. 2020. Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area. Earth Sciences Research Journal. 24, 1 (Jan. 2020), 111–118. DOI:https://doi.org/10.15446/esrj.v24n1.85231.

ACS

(1)
Zhang, H. Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area. Earth sci. res. j. 2020, 24, 111-118.

ABNT

ZHANG, H. Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area. Earth Sciences Research Journal, [S. l.], v. 24, n. 1, p. 111–118, 2020. DOI: 10.15446/esrj.v24n1.85231. Disponível em: https://revistas.unal.edu.co/index.php/esrj/article/view/85231. Acesso em: 28 mar. 2025.

Chicago

Zhang, Hongzhou. 2020. “Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area”. Earth Sciences Research Journal 24 (1):111-18. https://doi.org/10.15446/esrj.v24n1.85231.

Harvard

Zhang, H. (2020) “Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area”, Earth Sciences Research Journal, 24(1), pp. 111–118. doi: 10.15446/esrj.v24n1.85231.

IEEE

[1]
H. Zhang, “Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area”, Earth sci. res. j., vol. 24, no. 1, pp. 111–118, Jan. 2020.

MLA

Zhang, H. “Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area”. Earth Sciences Research Journal, vol. 24, no. 1, Jan. 2020, pp. 111-8, doi:10.15446/esrj.v24n1.85231.

Turabian

Zhang, Hongzhou. “Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area”. Earth Sciences Research Journal 24, no. 1 (January 1, 2020): 111–118. Accessed March 28, 2025. https://revistas.unal.edu.co/index.php/esrj/article/view/85231.

Vancouver

1.
Zhang H. Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area. Earth sci. res. j. [Internet]. 2020 Jan. 1 [cited 2025 Mar. 28];24(1):111-8. Available from: https://revistas.unal.edu.co/index.php/esrj/article/view/85231

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