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    • 1. 发明授权
    • Reinforcing block for excavation work and method of construction thereof
    • 挖掘作业用加固块及其施工方法
    • US5348424A
    • 1994-09-20
    • US10148
    • 1993-01-28
    • Masaru TateyamaYukihiko TamuraKosei FukudaShigeru YoshidaChikashi Kami
    • Masaru TateyamaYukihiko TamuraKosei FukudaShigeru YoshidaChikashi Kami
    • E02D3/12E02D5/74E02D5/80
    • E02D5/74E02D3/126E02D5/808
    • A novel method to construct a reinforcing block in an embankment is provided, wherein a core rod to which a protrusion is molded on the tip, is preset inside a hollow rotating shaft with drilling and agitating blades affixed around its circumference, but with the protrusion on the core rod exposed at the front of the shaft. This drilling and agitating shaft rotates and bores into the earth while simultaneously mixing the soil so agitated with a fixing agent; then at a specified depth, the rotating shaft is withdrawn leaving the core rod to remain anchored in the soil while the fixing agent continues to discharge from the end of the hollow rod; and when the hollow rod is completely removed, a reinforcing block is intact within the soil and the tail end of the core rod exposed on the surface of the banking is directly or indirectly affixed to this surface. Alternatively a core rod with no protrusion can be inserted into the hollow rotating shaft which is first drilled into the embankment, such that the nose end of the said core rod is anchored into unagitated soil. In either case the reinforcing block so formed is comprised of an outer concentric tube of agitated soil mixed with a fixing agent molded around an inner concentric tube of reinforcing fixing agent molded around a core rod, and wherein the nose tip of the core penetrates into the unagitated soil beyond the end of the concentric reinforcing layers.
    • 提供了一种在路堤中构造加强块的新颖方法,其中在尖端上模制突起的芯棒被预设在中空旋转轴的内部,其中钻孔和搅拌叶片固定在其圆周上,但是突出部 芯棒暴露在轴的前部。 该钻孔和搅拌轴旋转并钻孔进入地面,同时将被搅拌的固定剂混合; 然后在指定的深度处,旋转轴被抽出离开芯棒以保持锚定在土壤中,同时固定剂继续从中空杆的端部排出; 并且当中空杆被完全移除时,在土壤内完整的加固块,并且露出在金属表面上的芯棒的尾端直接或间接地附着在该表面上。 或者,可以将不具有突起的芯棒插入到首先钻入路堤中的中空旋转轴中,使得所述芯棒的前端锚定在不起眼的土壤中。 在任一种情况下,如此形成的加强块包括与围绕围绕芯棒模制的增强固定剂的内同心管模制的固定剂混合的搅拌土体的外同心管,并且其中芯的鼻尖穿透入 超过同心加强层末端的不起眼的土壤。