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本文提出了一种旋挖钻机方形钻头设计方案,并介绍了其在南水北调中线一期工程南阳段方形桩施工中的施工工艺。该旋挖钻机方形钻头在应用中稳定可靠、效率高、成桩质量好,为用户创造了可观的收益,得到用户、监理单位及同行的一致认可,同时扩展了旋挖钻机的施工工艺,为今后越来越多的特殊工程施工提供了一种思路。
In this paper, a design scheme of a square bit for a rotary drilling rig is presented, and its construction technology in the construction of square piles in the Nanyang segment of the first stage of the South-to-North Water Diversion Middle Route Project is introduced. The rotary drilling rig square drill in the application of stable and reliable, high efficiency, into a pile of good quality, users have created considerable benefits, users, supervision units and peers unanimously approved, while expanding the rotary drilling rig construction technology, as In the future more and more special construction provides a kind of train of thought.