深水下岩石切割的模拟试验研究

EXPERIMENTAL STUDY ON ROCK CUTTING UNDER DEEP WATER

通过自行开发设计的一套深水环境条件模拟试验装置,进行一系列深水环境条件下磨料水射流切割岩石的试验研究。针对岩石切割深度的主要影响因素,分别进行一系列的靶距变化、切割次数变化、射流横移速度变化和不同水深的模拟试验,从而揭示在深水环境条件下岩石切割深度与各主要切割参数的关系和规律,以及水深对岩石切割深度的影响。在深水环境条件下岩石切割技术的生产实际应用中,要综合考虑切割次数和射流横移速度与效率的关系;岩石等材料的合理靶距是一个关键性技术问题,应控制在有效靶距范围内才具有实际意义。

By using a set of self-designed experimental device, a series of experiments on rock cutting by abrasive waterjet under deep water are conducted. To study the main factors influencing the depth of rock cutting, a series of simulation experiments about variations of target distance, cutting times, jet horizontally moving velocity and the different depths of water have been performed to understand the rules of the depths of rock cutting, the main cutting parameters, and the effects of depths of water. The rock cutting techniques under deep water of practical application should consider the relations between cutting times, jet horizontally moving velocity and efficiency. The reasonable target distance of the materials such as rock and so on is one of key issues; and it has the practical significance only if the effective target distance is controlled.