NDLI: Study on time-varying characteristics of similar material model strength and the regulation measures

Content Provider	Springer Nature Link
Author	Li, Huaizhan Guo, Guangli Zha, Jianfeng
Copyright Year	2017
Abstract	Similar material simulation is an important research means in mining engineering. Similar material model errors will lead to instability of similarity degree between the model and the reality, reduce the reliability of simulation results and greatly limit the development of this method. By analyzing the error sources, this paper indicates that the time-varying characteristics of similar material model strength are the main restriction of using quantity method to evaluate similar material model. The test is carried out for the blocks of similar materials to study the relationship between moisture content and compressive and tensile strength. Then, the theoretical model about similar materials’ moisture content and strength is established to process and analyze the test results. Test results show that the time-varying characteristics of similar material strength have significant impacts on simulation results. The similar material strength variation with moisture change can be divided into three phases, and the relationship between strength and moisture content is different for different lithological material blocks. On the basis, the regulation measures are proposed to reduce the model errors caused by time-varying characteristics of material strength. The influence mechanism of the effect of constant temperature and humidity on the test results through decreasing time-varying characteristics of material strength is analyzed in detail. Research results can provide basis for similar material model design and the reliability of monitor time series and simulation results. It is important to promote the use of quantity method to evaluate similar material model both in theory and in practice.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	76
Issue Number	15
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-07-31
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Similar material Strength time-varying characteristics Regulation measures Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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