【摘要】 结合南水北调中线一期工程南阳段方形挡土桩工程实际,提出了一种旋挖钻机方形钻头设计方案及施工技术。该旋挖钻机方形钻头在应用中具有稳定可靠、效率高、成桩质量好等优点,同时扩展了旋挖钻机的施工工艺,为越来越多的特殊桩基础工程施工提供了一种思路。更多还原

【Abstract】 Combined with rectangular piles engineering of the first-stage project in mid-route of south-to-north water diversion in Nanyang,this paper proposed a design of rectangular drilling tool of rotary drilling rig and construction technology.The rectangular drilling tool is used with good reliability,high efficiency and good quality,which creates appreciable benefit.At the same time,it extends the construction technology of rotary drilling rig and provides a thought for special project of pile foundation in the future.更多还原