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旋挖钻机是一种取土成孔灌注桩用施工机械,靠钻杆带动回转斗旋转切削土,然后提升至孔外卸土进行周期性循环作业。旋挖钻机因其施工速度快、成孔质量高、环境污染小、运输灵活方便、安全性能高及适用性强等诸多优势,已成为钻孔灌注桩施工的主要设备。国内2003年开始规模生产旋挖钻机,经过几年的快速发展,绝大部分进入较早的大型企业已形成较完整的系列化产品。本文根据旋挖钻机产品的分类、特点、使用经验以及对市场的调研,为广大读者介绍一下如何进行旋挖钻机的选购。
Rotary Drilling Rig is a kind of construction machinery for soil-boring and cast-in-place grouting piles. Drilling rotary rods are used to rotate the cutting soil by the drill pipe, and then lifting to the outside of the holes to carry out the cyclic operation. Rotary drilling rig has become the main equipment for the construction of cast-in-place bored pile because of its advantages such as fast construction speed, high hole-forming quality, small environmental pollution, flexible and convenient transportation, high safety and applicability. Domestic scale rotary drilling rig started production in 2003, after a few years of rapid development, most of the large enterprises into the earlier have formed a more complete series of products. This article based on rotary drilling rig product classification, characteristics, experience and market research, for readers to introduce how to purchase rotary drilling rig.