The Helical Anchor Type with Application as a Horizontal Drainage Equipment for Slope Protection
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- Chi Nguyen Mai
- Thuyloi University
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- Hung Hoang Viet
- Thuyloi University
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- Wakai Akihiko
- Gunma University
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- Sato Go
- Teikyo Heisei University
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- Phuong Nguyen Ha
- Thuyloi University
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抄録
<p>Helical anchors, sometimes referred to as screw anchors, screw piles, and helical piles, are a steel screw-in piling and ground anchoring system used for building deep foundations. Screw piles are manufactured using varying sizes of tubular hollow sections for the pile or anchor shaft. This paper presents an innovation of the helical anchor for horizontal drains, a form of subsurface drainage systems for slope protection. To address the adverse effect of groundwater, an expansion of the application of the helical anchor structure in civil engineering is needed, and new drainage solutions are being considered. The features of the helical anchor type for horizontal drainage equipment, analyses of some of its advantages, and conditions of application are presented. Generally, a helical anchor for horizontal drainage is convenient for installation, maintenance, or removal, and is effective for both horizontal drainage and for anchoring the revetment. It is also a typical construction in drainage works, generally performed by a cranking handle or a rotary-percussion-type drilling machine. The helical anchor pipe for horizontal drainage has many segments with joints using a cranking hand for installation and is quite effective where the installation space is narrow or there is no machine. In particular, the installation of this equipment differs significantly from other drilling methods because it can be driven into a sand layer without a hole wall.</p>
収録刊行物
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- Journal of Disaster Research
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Journal of Disaster Research 16 (4), 495-500, 2021-06-01
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