Mitigation of Floor Heave in West Kentucky Coal Mine

Abstract

A West Kentucky mine operation in No. 11 seam encountered floor heave, due to the localized increase in the thickness of the fireclay mine floor. Floor heave has overridden seals installed in two mined out panels. The third seal's location was planned for isolating that area from the Mains. A plan of support has been developed to prevent repetition of the floor heave and related problems outby the seals. The applied ground control measures were successful. An attempt of a 3D numerical modeling was made; thus, it would match the observed behavior of the mine floor and could be used as a design tool in similar conditions. The paper describes sequence of events, an applied mitigation ground control system, and the first stage of numerical modeling.

Department(s)

Mining Engineering

Keywords and Phrases

Coal mines; Models; Numerical models; Rock mechanics; 3-D numerical modeling; Design tool; Floor heave; Ground control; Ground control system; Presplit; Secondary supports; Sequence of events; Floors; Modeling

International Standard Serial Number (ISSN)

2095-2686; 2589-062X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 China University of Mining and Technology, All rights reserved.

Publication Date

01 May 2016

Link to Full Text

Share

 
COinS