Published

2020-01-01

Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining

Evolución de la resistencia de la formación rocosa del subsuelo y sus efectos en la estabilidad del callejón del subsuelo

DOI:

https://doi.org/10.15446/esrj.v24n1.67925

Keywords:

Overhead mining, floor roadway, mining-induced stress, roadway stability (en)
minería aérea, superficie de calzada, esfuerzo inducido por la minería, estabilidad de calzada. (es)

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Authors

  • Pu Wang Shandong University of Science and Technology
  • Lishuai Jiang Shandong University of Science and Technology
  • Changqing Ma Shandong University of Science and Technology
  • Anying Yuan Anhui University of Science and Technology

The study of evolution laws of the mining-induced stress in floor strata affected by overhead mining is extremely important with respect to the stability and support of a floor roadway. Based on the geological conditions of the drainage roadway in the 10th district in a coalmine, a mechanical model of a working face for overhead mining over the roadway is established, and the laws influencing mining stress on the roadway in different layers are obtained. The evolution of mining stress in floor with different horizontal distances between the working face and the floor roadway that is defined as LD are examined by utilizing UDEC numerical simulation, and the stability of roadway is analyzed. The results of the numerical simulation are verified via on-site tests of the deformation of the surrounding rocks and bolts pull-out from the drainage roadway. The results indicate that the mining stress in floor is high, which decreases slowly within a depth of less than 40 m where the floor roadway is significantly affected. The mining stress in the floor increases gradually, and the effect of the mining on the roadway is particularly evident within 0 m ≤ LD ≤ 40 m. Although the floor roadway is in a stress-relaxed state, the worst stability of the surrounding rocks is observed during the range -20 m ≤ LD < 0 m, in which the negative value indicates that the working face has passed the roadway. The roadway is affected by the recovery of the abutment stress in the goaf when -60 m ≤ LD <20 m, and thus it is important to focus on the strengthening support. The results may provide a scientific basis for establishing a reasonable location and support of roadways under similar conditions.

El estudio de la evolución de la capacidad de reacción de las formaciones rocosas del subsuelo instaladas en el aire es importante para la estabilidad y la protección del sendero del subsuelo.Sobre la base de las condiciones geológicas del túnel de drenaje de la zona X de una mina de carbón, se estableció un modelo de mecánica de la superficie de Trabajo sobre el pavimento superior, con la influencia de la extracción de diferentes tramos del túnel.Se estudió la evolución de la capacidad de respuesta en el callejón inferior del tiempo a diferentes distancias entre la superficie de trabajo y el nivel del callejón inferior, utilizando un método de simulación numérico de udec, y se analizó la estabilidad del callejón.Los resultados de la simulación numérica se validaron mediante ensayos in situ de deformación de cerco y ensayos de extracción de Anclas de drenaje.Los resultados indican una mayor resistencia a la extracción en el subsuelo, una menor profundidad de 40 m en el callejón del subsuelo y una disminución lenta de la resistencia a la extracción en el subsuelo.El impacto de la extracción de la placa de base en el callejón fue m ás pronunciado en el intervalo de 0 ≤ m ≤ LD ≤ 40 ≤ M, donde la estabilidad de la roca de cerco fue menor en el intervalo de - 20 ≤ m ≤ LD < 0 M, aunque el carril de la placa de base se mantuvo en estado de descomposición.El valor negativo indica que el área de Trabajo pasó por el callejón.Cuando se extrae una zona espacial - 60m ≤ LD < 20 ≤ M, las carreteras se ven afectadas por la recuperación de la resistencia de la zona de extracción, por lo que es importante reforzar la protección.Los resultados de las investigaciones pueden proporcionar una base científica para la determinación razonable de la ubicación y el apoyo de los caminos en condiciones similares.

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How to Cite

APA

Wang, P., Jiang, L., Ma, C. and Yuan, A. (2020). Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining. Earth Sciences Research Journal, 24(1), 45–54. https://doi.org/10.15446/esrj.v24n1.67925

ACM

[1]
Wang, P., Jiang, L., Ma, C. and Yuan, A. 2020. Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining. Earth Sciences Research Journal. 24, 1 (Jan. 2020), 45–54. DOI:https://doi.org/10.15446/esrj.v24n1.67925.

ACS

(1)
Wang, P.; Jiang, L.; Ma, C.; Yuan, A. Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining. Earth sci. res. j. 2020, 24, 45-54.

ABNT

WANG, P.; JIANG, L.; MA, C.; YUAN, A. Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining. Earth Sciences Research Journal, [S. l.], v. 24, n. 1, p. 45–54, 2020. DOI: 10.15446/esrj.v24n1.67925. Disponível em: https://revistas.unal.edu.co/index.php/esrj/article/view/67925. Acesso em: 31 mar. 2025.

Chicago

Wang, Pu, Lishuai Jiang, Changqing Ma, and Anying Yuan. 2020. “Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining”. Earth Sciences Research Journal 24 (1):45-54. https://doi.org/10.15446/esrj.v24n1.67925.

Harvard

Wang, P., Jiang, L., Ma, C. and Yuan, A. (2020) “Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining”, Earth Sciences Research Journal, 24(1), pp. 45–54. doi: 10.15446/esrj.v24n1.67925.

IEEE

[1]
P. Wang, L. Jiang, C. Ma, and A. Yuan, “Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining”, Earth sci. res. j., vol. 24, no. 1, pp. 45–54, Jan. 2020.

MLA

Wang, P., L. Jiang, C. Ma, and A. Yuan. “Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining”. Earth Sciences Research Journal, vol. 24, no. 1, Jan. 2020, pp. 45-54, doi:10.15446/esrj.v24n1.67925.

Turabian

Wang, Pu, Lishuai Jiang, Changqing Ma, and Anying Yuan. “Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining”. Earth Sciences Research Journal 24, no. 1 (January 1, 2020): 45–54. Accessed March 31, 2025. https://revistas.unal.edu.co/index.php/esrj/article/view/67925.

Vancouver

1.
Wang P, Jiang L, Ma C, Yuan A. Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining. Earth sci. res. j. [Internet]. 2020 Jan. 1 [cited 2025 Mar. 31];24(1):45-54. Available from: https://revistas.unal.edu.co/index.php/esrj/article/view/67925

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CrossRef citations7

1. Yang Yu, Lianying Zhang, Jianfei Lu, Dingchao Chen, Xiangqian Zhao, Limin Liu, Ondra Sracek. (2021). Research on the Evolution Characteristics of Floor Stress and Reasonable Layout of Roadways in Deep Coal Mining. Geofluids, 2021, p.1. https://doi.org/10.1155/2021/6631444.

2. Pu Wang, Jinquan Jiang, Bin Xu, Wenfeng Li. (2020). Breaking and Instability Movement Characteristics of High-Position Double-Layer Hard Thick Strata due to Longwall Mining. Shock and Vibration, 2020, p.1. https://doi.org/10.1155/2020/8887026.

3. Kai Lv, Fulian He, Liang Li, Xuhui Xu, Binbin Qin. (2022). Field and simulation study of the rational retracement channel position and control strategy in close‐distance coal seams. Energy Science & Engineering, 10(7), p.2317. https://doi.org/10.1002/ese3.1140.

4. Piotr Małkowski, Łukasz Ostrowski, Jerzy Stasica. (2022). Modeling of Floor Heave in Underground Roadways in Dry and Waterlogged Conditions. Energies, 15(12), p.4340. https://doi.org/10.3390/en15124340.

5. Chongyang Jiang, Lianguo Wang, Furong Tang, Zhaolin Li, Shuai Wang, Bo Ren. (2022). Research on the Deformation and Failure Characteristics and Control Technology of Mining Area Rises under the Influence of Mining Stress. Minerals, 12(10), p.1242. https://doi.org/10.3390/min12101242.

6. Qisong Huang, Bo Xu, Junjun Feng, Jun Peng, Xiangyu Wang. (2025). Failure Characteristics and Stress Distribution of Intact Floor Under Coupled Static and Dynamic Loads in Mining Projects. Water, 17(5), p.699. https://doi.org/10.3390/w17050699.

7. Libin Bai, Fengfeng Wu, Peiju Yang, Shurong Zhang, Bin Li. (2024). Characteristics of Perimeter Rock Damage in a Bottom-Pumping Roadway under the Influence of Mining Activities and Rational Location Studies: A Case Study. Applied Sciences, 14(7), p.2727. https://doi.org/10.3390/app14072727.

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