Importance

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Abstract

Provided are a helically-reinforced horizontal water-gathering pipe having a multi-diameter, which is used in a riverbed filtration system that is installed in a predetermined depth of a riverbed to receive filtered water that is filtered through an aquifer and transfer the filtered water to a collector well or a collector trench, the helically-reinforced horizontal water-gathering pipe including: drain pipes including a plurality of inflow holes through which the filtered water flows, wherein the drain pipes have different diameters and each of the drain pipes having a larger diameter is disposed near the collector well or the collector trench; and at least one reinforcing screw helically protruded along an outer perimeter of each of the drain pipes, and a method of inserting the helically-reinforced horizontal water-gathering pipe. Since the helically-reinforced horizontal water-gathering pipe includes the reinforcing screw on the outer perimeter of each drain pipe, the helically-reinforced horizontal water-gathering pipe may be directly inserted into and installed in the aquifer by rotating the helically-reinforced horizontal water-gathering pipe. Accordingly, the helically-reinforced horizontal water-gathering pipe is easily and quickly installed without having to use an out-casing. Also, the reinforcing screw improves a structural strength of the helically-reinforced horizontal water-gathering pipe, thereby increasing durability of the helically-reinforced horizontal water-gathering pipe. Moreover, since a diameter of the helically-reinforced horizontal water-gathering pipe increases toward the collector well, an inflow efficiency of the filtered water may be prevented from being deteriorated even when a length of the helically-reinforced horizontal water-gathering pipe is long.

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First Claim