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

Peng, Syd S.

West Virginia University (United States)

关键词: Limestone;    Roofs;    Coal Mines;    Geology;    01 Coal, Lignite, And Peat;   

DOI  :  10.2172/839119
RP-ID  :  NONE
RP-ID  :  FC26-01NT41056
RP-ID  :  839119

美国|英语

来源: UNT Digital 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) one more field test has been conducted in an underground coal mine, (2) optimization studies of the control parameters have been conducted, (3) the relationship among feed pressure, penetration rate and rotation rate seems to be a good indicator for estimating rock strength when both penetration rate and rotation rate are controlled or kept constant, (4) the empirical equations for eliminating the machine effect on drilling parameters were developed and verified, and (5) a real time roof geology mapping system for roof bolters in limestone mine, including a special version of the geology mapping program and hardware, performs very well in underground production condition.