EVALUATION OF ROOF BOLTING REQUIREMENTS BASED ON IN-MINE ROOF BOLTER DRILLING

Peng, Syd S.

West Virginia University (United States)

关键词: Rock Drilling;    Strata Control;    Testing;    Roof Bolts;    01 Coal, Lignite, And Peat;   

DOI  :  10.2172/826266
RP-ID  :  NONE
RP-ID  :  FC26-01NT41056
RP-ID  :  826266

美国|英语

来源: UNT Digital Library

【 摘 要 】

A one-year non-cost extension has been granted for this project. 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) laboratory tests have been conducted, (2) with the added trendline analysis method, the accuracy of the data interpretation methodology will be improved and the interfaces and voids can be more reliably detected, (3) method to use torque to thrust ratio as indicator of rock relative hardness has also been explored, and (3) about 80% of the development work for the roof geology mapping program, MRGIS, has completed and a special version of the program is in the field testing stage.