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基于钻进过程监测系统在充填土-风化花岗岩地层中对液压旋转钻进的监测数据,对金刚石钻进系统的能量进行了分析.结果表明,钻进系统的能量分布与在普通风化花岗岩地层中的结果一致,黏滞能、动能以及钻进总能量与岩石的风化程度呈负相关,轴力功与岩石的风化程度呈正相关,说明金刚石钻进能量与岩石风化程度具有很好的响应关系.动能、轴力功及黏滞能受钻进方式影响,用于地层识别将受严格的可比条件限制.金刚石钻进比功随岩石风化程度的增强而减少,在不同风化程度的岩层中具有很好的分区性.而且,在充填土及全风化、强风化花岗岩地层中,金刚石旋转钻进比功值明显低于冲击凿碎比功,在微风化的坚硬岩中,旋转钻进比功则明显高于冲击凿碎比功.
The energy of diamond drilling system is analyzed based on the monitoring data of hydraulic rotary drilling in the filling soil-weathered granite strata by the drilling process monitoring system.The results show that the energy distribution of the drilling system is similar to that of normal drilling granite strata The results show that the viscous energy, kinetic energy and the total energy of drilling are negatively correlated with the degree of weathering of rock. The axial force is positively correlated with the degree of weathering of rock, indicating that diamond drilling energy has a good response to rock weathering. Kinetic energy, axial force and viscous energy can be influenced by the way of drilling, so stratigraphic identification will be subject to strict and comparable conditions.The specific work of diamond drilling decreases with the increase of weathering degree of rock, which is very significant in rock formations with different degrees of weathering Good zoning.Moreover, in filling the soil and the fully weathered, strong weathered granite strata, the diamond rotary drilling specific work value is significantly lower than the impact chisel than the work, in the weathered hard rock, rotary drilling than the power Significantly higher than the impact of chisel than power.