Experimental study on fracturing coal seams using CaO demolition materials to improve permeability

Currently, methane gas disasters in underground coal mines are a major problem which seriously threatens safe mining. This study employed soundless chemical demolition for fracturing coal seams with low permeability. Additionally, the fracturing theory and failure mechanisms of soundless chemical de...

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Main Authors: Yibo Tang, Liang Yuan, Junhua Xue, Changrui Duan
Format: Article
Language:English
Published: Central Mining Institute (Główny Instytut Górnictwa) 2017-01-01
Series:Journal of Sustainable Mining
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2300396017300526
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author Yibo Tang
Liang Yuan
Junhua Xue
Changrui Duan
author_facet Yibo Tang
Liang Yuan
Junhua Xue
Changrui Duan
author_sort Yibo Tang
collection DOAJ
description Currently, methane gas disasters in underground coal mines are a major problem which seriously threatens safe mining. This study employed soundless chemical demolition for fracturing coal seams with low permeability. Additionally, the fracturing theory and failure mechanisms of soundless chemical demolition agents were investigated. Materials such as CaO, naphthalene-based water reducer, sodium gluconate and silicate cement were used to prepare the novel soundless chemical demolition agent, whose optimum proportion was discovered to be 90:3:5:7 by carrying out orthogonal experiments. The innovative demolition agent cracked briquettes and the maximum width of cracks reached 16.33 mm, showing significant potential for improving the permeability of coal seams.
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spelling doaj.art-79e266932dc94d0f8410a006ff0cc4002022-12-21T21:27:21ZengCentral Mining Institute (Główny Instytut Górnictwa)Journal of Sustainable Mining2300-39602017-01-01162475410.1016/j.jsm.2017.07.002Experimental study on fracturing coal seams using CaO demolition materials to improve permeabilityYibo Tang0Liang Yuan1Junhua Xue2Changrui Duan3State Key Laboratory of Deep Coal Mining and Environment Protection, Huainan 232000, ChinaState Key Laboratory of Deep Coal Mining and Environment Protection, Huainan 232000, ChinaState Key Laboratory of Deep Coal Mining and Environment Protection, Huainan 232000, ChinaState Key Laboratory of Deep Coal Mining and Environment Protection, Huainan 232000, ChinaCurrently, methane gas disasters in underground coal mines are a major problem which seriously threatens safe mining. This study employed soundless chemical demolition for fracturing coal seams with low permeability. Additionally, the fracturing theory and failure mechanisms of soundless chemical demolition agents were investigated. Materials such as CaO, naphthalene-based water reducer, sodium gluconate and silicate cement were used to prepare the novel soundless chemical demolition agent, whose optimum proportion was discovered to be 90:3:5:7 by carrying out orthogonal experiments. The innovative demolition agent cracked briquettes and the maximum width of cracks reached 16.33 mm, showing significant potential for improving the permeability of coal seams.http://www.sciencedirect.com/science/article/pii/S2300396017300526Soundless chemical demolitionCoal seamGas drainageCaO
spellingShingle Yibo Tang
Liang Yuan
Junhua Xue
Changrui Duan
Experimental study on fracturing coal seams using CaO demolition materials to improve permeability
Journal of Sustainable Mining
Soundless chemical demolition
Coal seam
Gas drainage
CaO
title Experimental study on fracturing coal seams using CaO demolition materials to improve permeability
title_full Experimental study on fracturing coal seams using CaO demolition materials to improve permeability
title_fullStr Experimental study on fracturing coal seams using CaO demolition materials to improve permeability
title_full_unstemmed Experimental study on fracturing coal seams using CaO demolition materials to improve permeability
title_short Experimental study on fracturing coal seams using CaO demolition materials to improve permeability
title_sort experimental study on fracturing coal seams using cao demolition materials to improve permeability
topic Soundless chemical demolition
Coal seam
Gas drainage
CaO
url http://www.sciencedirect.com/science/article/pii/S2300396017300526
work_keys_str_mv AT yibotang experimentalstudyonfracturingcoalseamsusingcaodemolitionmaterialstoimprovepermeability
AT liangyuan experimentalstudyonfracturingcoalseamsusingcaodemolitionmaterialstoimprovepermeability
AT junhuaxue experimentalstudyonfracturingcoalseamsusingcaodemolitionmaterialstoimprovepermeability
AT changruiduan experimentalstudyonfracturingcoalseamsusingcaodemolitionmaterialstoimprovepermeability