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一、前言目前,国内的静力压桩机主要有DY-80型绳索法静力压桩机和DYG-320全液压压拔桩机。DY-80型是靠自重来平衡桩的压人阻力,可压入每节桩段长度为7、9和12m,压不同长度的桩段要重新组装压桩架的高度,给施工带来不便,压桩力的传递系统是钢绳滑轮组,滑轮多达39个,钢绳缠绕次数很多,大大降低了传动效率;也不便于装卸和维修;压入力80t,功率80kW,功率消耗太大。DYG-320只适于压钢板桩和型钢桩,是以锚桩的摩擦阻力和设备自重来平衡桩对机器的反作用力,当桩机失去平衡
I. INTRODUCTION At present, domestic static pile drivers mainly include DY-80 type rope method static pile driver and DYG-320 full hydraulic pressure pile driver. DY-80 type is based on self-weight to balance the pressure resistance of the pile, can be pressed into the length of each section of 7, 9 and 12m, pressure piles of different lengths to re-assemble the height of the pile holder, inconvenient to the construction The transmission system of the pile-pressing force is a rope pulley group with as many as 39 pulleys. The number of windings of steel ropes is very large, which greatly reduces the transmission efficiency; it is also not easy to handle and maintain; the press-in force is 80t, the power is 80kW, and the power consumption is too high. DYG-320 is only suitable for pressing steel sheet piles and steel piles. It balances the reaction force of the pile against the machine by the frictional resistance of the pile and the weight of the equipment. When the piler loses balance.