NDLI: An Evaluation Method for the Bursting Characteristics of Coal Under the Effect of Loading Rate

Content Provider	Springer Nature Link
Author	Haitao, Li Hongwei, Zhou Yaodong, Jiang Hongwei, Wang
Copyright Year	2016
Abstract	Changes in loading rate can affect the strength performance and bursting characteristics of coal. Coal samples from the same source were subject to mechanical tests for multi-loading rates. These tests were carried out to determine changes in evaluation indicators for the law of bursting liability due to increases in the loading rate. The results show that indicators, including the uniaxial compressive strength and the bursting energy index, first increased and then decreased with the increase in loading rate. The value of the loading rate, which corresponds to the strength turning point, is named the “critical loading rate”. The results of evaluating the bursting liability of coal (from the same source) show all the possibilities. The critical loading rate corresponds to the highest bursting liability. The “loading rate sensitivity” is proposed to describe the comprehensive response of the bursting characteristics to the loading rate. This index, combined with the scale conversion method, makes the field application of laboratory experimentation possible. This method for evaluating the bursting liability of coal under the effect of loading rate was systematically established and shows good applicability.
Starting Page	3281
Ending Page	3291
Page Count	11
File Format	PDF
ISSN	07232632
Journal	Rock Mechanics and Rock Engineering
Volume Number	49
Issue Number	8
e-ISSN	1434453X
Language	English
Publisher	Springer Vienna
Publisher Date	2016-04-25
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Effect of loading rate Burst performance Uniaxial compressive strength Bursting energy index Loading rate sensitivity Geophysics/Geodesy Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Geology Geotechnical Engineering and Engineering Geology Civil and Structural Engineering

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