PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Prediction of Gas Emission from Floor Coalbed of Steeply Inclined and Extremely Thick Coal Seams Mined Using the Horizontal Sublevel Top-Coal Caving Method
Version 1
: Received: 28 September 2019 / Approved: 29 September 2019 / Online: 29 September 2019 (10:53:02 CEST)
How to cite:
Hu, Y.; Wang, G.; Chen, J.; Liu, Z.; Fan, C. Prediction of Gas Emission from Floor Coalbed of Steeply Inclined and Extremely Thick Coal Seams Mined Using the Horizontal Sublevel Top-Coal Caving Method. Preprints2019, 2019090333. https://doi.org/10.20944/preprints201909.0333.v1
Hu, Y.; Wang, G.; Chen, J.; Liu, Z.; Fan, C. Prediction of Gas Emission from Floor Coalbed of Steeply Inclined and Extremely Thick Coal Seams Mined Using the Horizontal Sublevel Top-Coal Caving Method. Preprints 2019, 2019090333. https://doi.org/10.20944/preprints201909.0333.v1
Hu, Y.; Wang, G.; Chen, J.; Liu, Z.; Fan, C. Prediction of Gas Emission from Floor Coalbed of Steeply Inclined and Extremely Thick Coal Seams Mined Using the Horizontal Sublevel Top-Coal Caving Method. Preprints2019, 2019090333. https://doi.org/10.20944/preprints201909.0333.v1
APA Style
Hu, Y., Wang, G., Chen, J., Liu, Z., & Fan, C. (2019). Prediction of Gas Emission from Floor Coalbed of Steeply Inclined and Extremely Thick Coal Seams Mined Using the Horizontal Sublevel Top-Coal Caving Method. Preprints. https://doi.org/10.20944/preprints201909.0333.v1
Chicago/Turabian Style
Hu, Y., Zhiyuan Liu and Cheng Fan. 2019 "Prediction of Gas Emission from Floor Coalbed of Steeply Inclined and Extremely Thick Coal Seams Mined Using the Horizontal Sublevel Top-Coal Caving Method" Preprints. https://doi.org/10.20944/preprints201909.0333.v1
Abstract
In the steeply inclined and extremely thick coal seams (SIETCS) mined using the horizontal sublevel top-coal caving (HSTCC) method, the uncertainty of gas emission is a safety threat to the mining operations. In order to reduce the occurrence of accidents, the determination of gas emission is crucial. In this paper, we first proposed a prediction model for workers at the floor coalbed to calculate gas emission on site. We then put forward a finite element numerical simulation for researchers to predict gas emission from the floor coalbed. At last, we measured gas emitted from the floor coalbed of SIETCS in Wudong Coal Mine in a specific mining period and used the data to verify the applicability and accuracy of these two gas-emission prediction methods. The results showed that the gas emission from Wudong Coal Mine was 1.08 m3/min calculated based on the prediction model and 1.07 m3/min obtained using the user-defined integration method. Both methods have their own advantages, disadvantages and applicable objects, and are important in predicting gas emission from SIETCS mined using HSTCC method.
Keywords
steeply inclined and extremely thick coal seam; horizontal sublevel top-coal caving; gas prediction; numerical simulation
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
