Evaluation of Roof Bolting Requirements Based on In-Mine Roof Bolter Drilling. Quarterly Technical Progress Report.

Peng, S. S.

Technical Information Center Oak Ridge Tennessee

关键词: Mine roof bolting;    Roof collapse;    Mine safety;    Mining industry;    Underground mines;   

RP-ID  :  DE2005836111

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

In this quarter, the field, theoretical and programming works have been performed toward achieving the research goals set in the proposal. The main accomplishments in this quarter included: (1) two more sets of field tests have been conducted in an underground coal mine, (2) optimization studies of the control parameters have been conducted, (3) method to use torque to thrust ratio as indicator of rock relative hardness has also been explored, and (3) about 97% of the development work for the roof geology mapping program, MRGIS, has completed, (4) A special version of the geology mapping program for a limestone mine has been developed. The field test for the software and hardware has been successfully finished.