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从1902年起,有人不止一次地提出了用硬岩的各种热力岩方法。但是,直到近年来,热钎子利用了按火箭发动机型式所设计的燃烧器才有可能地、有效地采用这些方法。随着火箭术的发展,才有可能创造尺寸不大的、工作可靠的喷气燃烧室(喷气燃烧器),在压力为20～40计示大气压时,室内温度高达3000℃以上。在喷嘴器中扩大的气流就从这一燃烧器以超音速喷出,因此可以保证有很大的速度将热送往岩石受热面,并在岩石中有很大的温度应力。在特别坚硬的岩石中钻孔时,用普通法岩的效率极低,而用热
From 1902 onwards, various thermal rock methods using hard rock have been proposed on more than one occasion. However, it has not been possible and effective to use these methods until now, with the use of burners designed according to rocket engine models. With the development of rocket technology, it is possible to create a compact and reliable jet combustion chamber (jet burner) with an indoor temperature of up to 3000 ° C at a pressure of 20 to 40 barometric pressure. The expanding air flow in the nozzle is ejected from this burner at supersonic speeds, thus ensuring a high rate of heat transfer to the rock’s heated face and a significant temperature stress in the rock. When drilling holes in particularly hard rock, normal rock is extremely inefficient and hot