瑞典阿特拉斯公司(Atlas copco)研制成功一种新的破岩装置—水炮,该装置命名为CRAC—200,可以破碎1米~3的大块,作业安全而且效率高。众所周知,岩石的抗拉强度仅为其抗压强度的十分之一,因此,从内部使岩石破碎比从表面使岩石破碎所需的能量少得多。 Swedish Atlas Copco has developed a new rock breaking device, the Water Cannon, named CRAC-200, which can break a block of 1 to 3 meters and is safe and efficient. It is well known that the tensile strength of rocks is only one tenth of their compressive strength, and therefore the crushing of rocks from the interior is much less than the energy required to crush rocks from the surface.