Instability-negative pressure loss model of gas drainage borehole and prevention technique: A case study.

The internal collapse of deep seam drainage borehole and negative pressure loss represents a serious technical problem affecting gas drainage. To address this problem a creep model of coal around borehole was established based on the plastic softening characteristics of coal. The final collapse time...

Full description

Bibliographic Details
Main Authors: Qingjie Qi, Xinlei Jia, Xinhua Zhou, Youxin Zhao
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2020-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0242719