NDLI: Longwall Face Stability Index for Estimation of Chock-Shield Pressure and Face Convergence

Content Provider	Springer Nature Link
Author	Verma, A. K. Deb, D.
Copyright Year	2010
Abstract	The paper discusses the concept and methodologies for the development of longwall face stability index (LFSI). LFSI is used for estimation of chock-shield pressure and face convergence. The index comprises of engineering properties of main roof, depth of mining, different support capacities and mechanical properties of coal seam being mined and provides a numerical value in the range of −6.17 to 8.13. In this study, 324 finite element models of longwall panel are developed based on various combinations of geomining conditions of Indian coal measure strata. The LFSI is an outcome of the results from finite element models. This paper illustrates a real life example for the estimation of chock shield pressure and face convergence based on LFSI. Validation of the LFSI based calculation is carried out with the field monitored data and found that the LFSI based approach is sufficient to forecast face stability parameters at longwall face.
Starting Page	431
Ending Page	445
Page Count	15
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	28
Issue Number	4
e-ISSN	15731529
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-02-12
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Longwall mining Chock-shield support Longwall face stability index Civil Engineering Waste Management/Waste Technology Terrestrial Pollution Hydrogeology Geotechnical Engineering
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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