Migration Characteristics of Boring Mud in Roadway Floor Anchor Wire Hole and Test in Coal Mine

Migration Characteristics of Boring Mud in Roadway Floor Anchor Wire Hole and Test in Coal Mine

Given the difficulty in drilling the anchor holes in the roadway floor of the coal mine, the characteristics of slag movement in the process of positive and negative circulation drilling are analyzed. It is concluded that the interaction between the three zones of drilling and slag is the fundamenta...

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Bibliographic Details
Main Authors:	Hui Zhang, Weihai Han, Youlin Xu, Mengzhi Zhu, Zhanyang Liu, Zhenfeng Wang
Format:	Article
Language:	English
Published:	Hindawi Limited 2021-01-01
Series:	Advances in Civil Engineering
Online Access:	http://dx.doi.org/10.1155/2021/8817498

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