Optimal Support Spacing for Steel Sets: Omerler Underground Coal Mine in Western Turkey

Ozdogan, Mehmet Volkan; Yenice, Hayati; Gönen, Alper; Karakuş, Doğan

doi:10.1061/(asce)gm.1943-5622.0001069

Cited by 14 publications

(7 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Powered support in dynamic load condi tions -numerical analysis. Archive of Mining Science, 65 (3), 453468. https://doi.org/10.24425/ams.2020.134129. 11.…”

Section: визначення відстані між арочним кріпленням у гірничих виробк...mentioning

confidence: 99%

See 1 more Smart Citation

Determination of steel arch support distance for roadways under the open-pit mine: a case study at the Mong Duong Coal Mine (Vietnam)

Vu¹,

Dao²

2023

Nauk. visn. nat. hirn. univ.

View full text Add to dashboard Cite

Purpose. Nowadays, in Quang Ninh coalfield, the mining activity in quarries is increasing. For this purpose, mine roadways are dug and supported. After the mine roadways are dug, they are mainly supported by steel arches. Statistics in fact show that about 85 % of the roadway support structure at the underground coal mines in Quang Ninh are supported by the steel arch support made of SVP profile. The purpose of the study is to calculate and determine a reasonable steel support distance for the roadways located under the open-pit mine to ensure their stability and the safety of exploitation. Methodology. In this study, the numerical simulation method was used. On the basis of Phase2 software and geological conditions of the mine, the authors established a simulation model to determine the pressure acting on the roadway and select a reasonable support distance. Findings. The study considered different steel arch support structure distance following the structure of the rock mass under the 790 open-pit area at the Mong Duong Coal Mine, the internal forces in SVP steel arch support structure distance were also studied for one-lane railway and two-lane railways roadway. From the results of internal forces in the steel support structure, a reasonable SVP-22 steel arch distance was selected, which is 0.7 m for the one-lane railway roadway, as well as SVP-27, which is 0.7 m for the two-lane railway roadway. Originality. Using Phase2 software, the authors created a simulation model of the roadways in Seam L7 located on the West side of Mong Duong Coal Mine, which allowed analyzing and describing the condition of the surrounding rock mass. This study utilized a numerical modeling approach to simulate and establish the bending moment and axial force of both single and double lane railway roadways, across a range of support distances. Based on the results of pressure calculation for the roadways, the authors have selected a reasonable support distance for each corresponding roadway. Practical value. The findings of the study serve as the foundation for the practical application of production methods at the Mong Duong Coal Mine. On the basis of calculating the pressure acting on the roadways at the Seam L7 in the West Side under the 790 open-pit area, the distance of steel arch support was determined, from which the roadway support plan has been developed. This research result will also serve as a basis for other mines with similar geological conditions in Quang Ninh coalfield to consider and apply.

show abstract

“…Powered support in dynamic load condi tions -numerical analysis. Archive of Mining Science, 65 (3), 453468. https://doi.org/10.24425/ams.2020.134129. 11.…”

Section: визначення відстані між арочним кріпленням у гірничих виробк...mentioning

confidence: 99%

“…The pits have different groundwater levels de pending on the topography of the openpit compared to the surrounding ground. Thus, it can be seen that formation for each coal mine pit will have different natural and technical conditions, so the pressure acting on the support structure is also different [2,3].…”

mentioning

confidence: 99%

Determination of steel arch support distance for roadways under the open-pit mine: a case study at the Mong Duong Coal Mine (Vietnam)

Vu¹,

Dao²

2023

Nauk. visn. nat. hirn. univ.

View full text Add to dashboard Cite

show abstract

“…4. GSI index is mainly based on the rock mass structure and condition of discontinuities surfaces and is evaluated form visual observations of the rock mass appearance in surface excavations, out-crops and underground opening faces (Fabich et al 2015;Ozdogan et al 2018). GSI results are listed in Table 1.…”

Section: Rock Mass Classificationmentioning

confidence: 99%

Preliminary support design for underground mine adit, Artana mine, Kosovo

Ibishi¹,

Zeqiri²,

Shabani³

et al. 2021

Mining Scince

View full text Add to dashboard Cite

In this paper, preliminary support design of the main underground opening (i.e., mine adit) located at the Artana lead-zinc mine, Kosovo, was examined by employing both conventional and numerical methods for safe underground excavation and design. In order to conduct field studies including discontinuity surveying and sampling for laboratory testing two empirical methods, namely rock mass rating (RMR) and geological strength index (GSI) were employed. For the purpose of determining necessary support units RMR system was utilized. However, these kind of systems can take into account for neither the depth of underground opening nor in situ field stresses. For this reason, empirical design methods (i.e., RMR system) failed to investigate the performance of rock support units; therefore, a 2D finite element analysis program was used to assess the performance of the proposed support systems. This indicated that RMR system might not be applicable for poor and very poor rock masses located in deep environment (i.e., 300 and 400 m). Moreover, this is linked to the fact that the RMR system does not consider in situ stress conditions. This study showed that when empirical methods are supported by numerical analysis, the preliminary support system design will be much more reliable.

show abstract

“…The utilisation Figure 1. Stope production cycle (a: stope development, b: production drilling, c: ore mucking, d: backfilling of FEM-based software is one of the most preferred methods, particularly in underground design analyses (Ozdogan et al 2017). In this study, Phase 2 twodimensional (2D) FEM software program developed by Rocscience (2007) was used to determine the influence of the distance between the stope and the footwall drift.…”

Section: Numerical Modelmentioning

confidence: 99%

Determination of Distance Required to Ensure Stope and Footwall-drift Non-interaction Zone based on Geological Strength Index

Ozdogan

Gönen

2019

Earth sci. res. j.

Self Cite

View full text Add to dashboard Cite

In the Bakibaba Copper Mine, the longhole stoping method is used in the production of copper ore. Stability problems have occurred at times on the footwall drift due to the interaction between the footwall drift and stope. In this study, we propose a method for estimating the minimum distance necessary to ensure a non-interaction zone between the footwall drift and stope. We used the finite element method and various distances between the footwall drift and stope and the displacements over drifts as parameters. We also performed analyses on various geological strength index values from low to high to determine the effect of the rock mass on the interaction between the footwall drift and stope

show abstract

Optimal Support Spacing for Steel Sets: Omerler Underground Coal Mine in Western Turkey

Cited by 14 publications

References 28 publications

Determination of steel arch support distance for roadways under the open-pit mine: a case study at the Mong Duong Coal Mine (Vietnam)

Determination of steel arch support distance for roadways under the open-pit mine: a case study at the Mong Duong Coal Mine (Vietnam)

Preliminary support design for underground mine adit, Artana mine, Kosovo

Determination of Distance Required to Ensure Stope and Footwall-drift Non-interaction Zone based on Geological Strength Index

Contact Info

Product

Resources

About