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  1. Journal of Central South University of Technology
  2. Journal of Central South University of Technology : Volume 4
  3. Journal of Central South University of Technology : Volume 4, Issue 1, March 1997
  4. Ultrasonic characteristics of the disturbed coal mass
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Journal of Central South University of Technology : Volume 24
Journal of Central South University of Technology : Volume 23
Journal of Central South University of Technology : Volume 22
Journal of Central South University of Technology : Volume 21
Journal of Central South University of Technology : Volume 20
Journal of Central South University of Technology : Volume 19
Journal of Central South University of Technology : Volume 18
Journal of Central South University of Technology : Volume 17
Journal of Central South University of Technology : Volume 16
Journal of Central South University of Technology : Volume 15
Journal of Central South University of Technology : Volume 14
Journal of Central South University of Technology : Volume 13
Journal of Central South University of Technology : Volume 12
Journal of Central South University of Technology : Volume 11
Journal of Central South University of Technology : Volume 10
Journal of Central South University of Technology : Volume 9
Journal of Central South University of Technology : Volume 8
Journal of Central South University of Technology : Volume 7
Journal of Central South University of Technology : Volume 6
Journal of Central South University of Technology : Volume 5
Journal of Central South University of Technology : Volume 4
Journal of Central South University of Technology : Volume 4, Issue 2, November 1997
Journal of Central South University of Technology : Volume 4, Issue 1, March 1997
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Ultrasonic characteristics of the disturbed coal mass
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Ultrasonic characteristics of the disturbed coal mass

Content Provider Springer Nature Link
Author Lu, Shaolin He, Jishan
Copyright Year 1997
Abstract Coal and gas outbursts are a mechanical dislocation process of a gas-logged and porous medium. The existence of the disturbed coal is a precondition of the outbursts. The study showed that the disturbed coal and normal coal are greatly different in mechanical and physical properties which decided the speeds of ultrasonic wave travelling in them. This paper presents a set of experimental measuring system and method. The results of measurements conducted in 60 min areas revealed quite different ultrasonic characteristics in different types of coal mass textures. Measuring the disturbed coal is a new way for predicting the outbursts.
Starting Page 42
Ending Page 45
Page Count 4
File Format PDF
ISSN 10059784
Journal Journal of Central South University of Technology
Volume Number 4
Issue Number 1
e-ISSN 19930666
Language English
Publisher Central South University of Technology
Publisher Date 1997-01-01
Publisher Place Changsha
Access Restriction Subscribed
Subject Keyword ultrasonic characteristics disturbed coal mass coal and gas outbursts Engineering Metallic Materials
Content Type Text
Resource Type Article
Subject Mechanics of Materials Materials Science Mechanical Engineering
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