| 摘要 |
FIELD: mining and construction, particularly to excavate frozen ground massifs by massif cutting into several parts before ground excavation. ^ SUBSTANCE: method for ground cutting with the use of end-mill type cutter involves installing end-mill type cutter on basic machine so that the cutter is inclined with respect thereto and cutting ground with front cutter part as pendular oscillations symmetric with respect to basic machine axis are transmitted to the cutter. Cutting part of the cutter is made as separate teeth and thermal burners arranged in-between. The thermal burners include serially connected outer nozzles, combustion chambers and outlet valves. Previously prepared mixture including compressed gas and air is supplied to the burners via pipeline. ^ EFFECT: increased efficiency, possibility to cut frozen ground for necessary depth. ^ 1 dwg |
