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PERFORMANCE-CHARACTERISTICS OF A SMALL-SCALE ROTARY BORING MACHINE INSTRUMENTED WITH LARGE DRAG PICKS
被引：6
作者：
HOWARTH, DF
ADAMSON, WR
机构：
[1] Univ of Queensland, St. Lucia, Aust, Univ of Queensland, St. Lucia, Aust
来源：
关键词：
ROCK - Sedimentary - ROCK DRILLS - TUNNELING MACHINES;
D O I：
10.1016/0148-9062(88)92714-3
中图分类号：
P5 [地质学];
学科分类号：
0709 ;
081803 ;
摘要：
Performance characteristics of a small scale rotary boring machine instrumented with six very large drag picks in six sedimentary rock types are reported. Performance trends were in reasonable agreement with those obtained from previous studies on tunnel boring machines (TBM) and rotary diamond drilling equipment. The performance of the rotary boring machine was constrained by the centre and gauge cutters. Poorly designed centre and gauge cutters attract disproportionately high tool forces and specific energy requirements. Bulk density and uniaxial compressive strength (UCS) correlated highly with penetration rates in the six rock types tested. Diamond and percussion drilling studies were undertaken in the same rocks types and confirmed previous suggestions that it might be possible to predict the requirements and performance of a TBM from the behaviour of a drilling rig during a site investigation.
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页码：25 / 33
页数：9
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