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KAMY is the worldwide leader in manufacturing hydraulic cutters, road headers, tunnel support systems, and other specialized machinery used in the tunneling, mining, and construction industries. Through KAMY’s years of experience and innovative thinking, we can provide custom engineered solutions for nearly any project requiring rock excavation or concrete demolition.

KAMY is the leading manufacturer of roadheaders in the weight class of 13-80 tons weight. Our roadheaders offer interchangeable cutter heads, both transverse and axial and are custom engraved for each project. Our hydraulic cutters are suitable for material with uniaxial compressive strength ranging from 500 to 25,000 pounds per square inch. All of our products can be utilized in a variety of applications from rock excavation, trenching, demolition and concrete, to underwater cutting, tunneling, and scaling.

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Design constraints for full-face tunnelling machines in coal ... Some of tile factors affecting the performance of a tunnel-boring machine in …

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design constraints for full-face tunnelling machines in coal

Design constraints for full-face tunnelling machines … Some of the factors affecting the performance of a tunnel-boring machine in the Sea Drift tunnel at …

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Design constraints for full-face tunnelling machines in

Some of the factors affecting the performance of a tunnel-boring machine in the Sea Drift tunnel at Dawdon Colliery are examined. These illustrate the potential for tunnelling machines in Coal Measures strata as a means for rapid excavation of a stable tu

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design constraints for full face tunnelling

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Work Organization and Labour Instability. Construction projects, especially large ones, are complex and dynamic. Several employers may work on one site simultaneously, with the mix of contractors changing with the phases of the project; for example, the g

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Design constraints for full-face tunnelling

Design constraints for full-face tunnelling machines in coal mines 59 gradient of 1 in 400 using a Thyssen FLP 12/35 tunnel-boring machine described by Rees

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Design constraints for full-face tunnelling … Design constraints for full-face tunnelling machines in coal mines 63 Table 1. Summary of cutting delays.

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GEOTECHNICAL FACTORS AFFECTING TUNNELLING MACHINE PERFORMANCE

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Design constraints for full-face tunnelling ... Design constraints for full-face tunnelling machines in coal mines 59 gradient of 1 in 400 using a Thyssen FLP 12 ...

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