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

• Autorzy: Tang Y. , Yuan L. , Xue J , Duan C.

Identyfikatory

DOI

10.1016/j.jsm.2017.07.002

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

soundless chemical demolition; coal seam; gas drainage; CaO

PL

pokład węgla; odmetanowanie; CaO

• Wydawca: Elsevier ; Główny Instytut Górnictwa
• Czasopismo: Journal of Sustainable Mining
• Rocznik: 2017
• Tom: Vol. 16, iss. 2
• Strony: 47--54
• Opis fizyczny: Bibliogr. 22 poz.

Twórcy

autor

Tang Y.

• State Key Laboratory of Deep Coal Mining and Environment Protection, Huainan 232000, China
• College of Mining Technology, Taiyuan University of Technology, Taiyuan 030024, China

autor

Yuan L.

• State Key Laboratory of Deep Coal Mining and Environment Protection, Huainan 232000, China

autor

Xue J

• State Key Laboratory of Deep Coal Mining and Environment Protection, Huainan 232000, China

autor

Duan C.

• State Key Laboratory of Deep Coal Mining and Environment Protection, Huainan 232000, China

Bibliografia

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