【摘要】 破岩方法可分为机械能破岩和热能破岩2种。对于中等硬度以下的岩石,如硬度系数(f)≤6～8的岩石利用机械方法破岩效率较高;而对于f≥8的坚硬岩石,热能破岩的效果就远远高于机械破岩。从实际应用出发,重点介绍了低温等离子体破岩、凿岩的原理和方法,等离子装置的结构及其特点。更多还原

【Abstract】 There are two rock breaking methods,namely breaking rock by mechanical energy or by heat energy.Breaking rock by mechanical energy is comparatively efficient for the rocks with Protodyakonov coefficient of rock strength(f)≤6～8,but the efficiency of breaking rock by heat energy is much higher than that of breaking rock by mechanical energy for the rocks with f≥8.The principle and method of breaking rock and drilling by low temperature plasma,the structure and features of the plasma torch are described.更多还原