Design of Coal Mine Drainage System
Design of Coal Mine Drainage System
Design of Coal Mine Drainage System
1051/e3sconf/20197604006
ICST 2018
Abstract. Research from coal fields show that increased production from coal mines resulted in a
wider pit. Changes in the water catchment area resulted in changes in the calculation of mine water
volume. Excessive mine water volume affects mining activities. Large amounts of water in the pit
causes disruption in excavation and loading and hauling activities. Therefore, the design of mine
drainage systems is required. The purpose of the study is to analyse statistically the parameters of
the mine drainage system, and to design the mine drainage system; including open drain, sump, and
settling pond. The research tools used include the calculation of runoff water discharge that requires
statistical analysis for rainfall data processing and the determination of catchment area (CA). The
open channel dimension and settling pond design is based on the sump volume calculation. The
research area has high rainfall classification, solid percent 2.66 % with settling rate 0.0027 m/s; the
time required for the particle to settle is 30.38 minutes. The percentage of theoretically suctioned
particle is 83 %, and the settling pond maintenance time that has 4 compartments is 15, 16, 19, and
23 days.
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Corresponding author: waterman.sb@upnyk.ac.id
© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0
(http://creativecommons.org/licenses/by/4.0/).
E3S Web of Conferences 76, 04006 (2019) https://doi.org/10.1051/e3sconf/20197604006
ICST 2018
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E3S Web of Conferences 76, 04006 (2019) https://doi.org/10.1051/e3sconf/20197604006
ICST 2018
Fig. 1. Map of rainfall catchment in mine area, the colour indicates a particular catchment area and the arrow indicates the direction
of the water flow.
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E3S Web of Conferences 76, 04006 (2019) https://doi.org/10.1051/e3sconf/20197604006
ICST 2018
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E3S Web of Conferences 76, 04006 (2019) https://doi.org/10.1051/e3sconf/20197604006
ICST 2018
Top length Bottom length Top width Bottom width Depth Slope Area Volume
Pond compartment
(m) (m) (m) (m) (m) (°) (m2) (m3)
Fig. 3. Design map of coal mine drainage system based on water catchment areas, rainfall data, runoff discharge, and information on
rain intensity/frequency.
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E3S Web of Conferences 76, 04006 (2019) https://doi.org/10.1051/e3sconf/20197604006
ICST 2018