Construction apparatus of suction pile

Abstract

A constructing device of a suction pile is provided to easily construct a pile in the water without a pump trouble by preventing water, being discharged outside, from coming into a pump when discharging the water in the suction pile to the outside and locating the pump on a worktable on the water. A constructing device of a suction pile includes a pump installed to a worktable on the water; a first hose connected to the pump, to have water supplied upward; a valve installed to an outlet side of the pump; a pressure gauge disposed to the outlet side of the pump; a second hose connected to the outlet side of the pump; and a venturi fixed to the upper part of the suction pile. The second hose is connected to one end of the venturi. In the venturi, the middle part is narrower than an inlet and an outlet, and a pipe vertically extended from the middle part is connected to a drain port of the suction pile and the water coming into the inlet side flows quickly in the middle part. The water in the suction pile is discharged to the outlet side. Thus, the inner pressure is lower the the outer pressure of the suction pile. Through the difference of such pressure, the suction pile is dipped to the bottom the sea.

Description

technical field [0001] The invention relates to a construction device for a suction pile, in particular to a construction device for a suction pile driven by hydraulic pressure at the bottom of the water. Background technique [0002] At present, as a method of constructing foundation piles for constructing offshore structures, a construction method is used in which foundation piles are constructed in the same way as a construction process on general land while seawater is blocked by water retaining works. [0003] According to the existing construction method, it is not difficult to construct in the sea where the water depth is not so deep, but it is very difficult to use this construction method in the deep sea with deep water, and this construction method has the disadvantages of long construction time and high cost shortcoming. [0004] A construction method using suction piles has been proposed as a technique for improving such a conventional construction method. The ...

AI Technical Summary

Problems solved by technology

However, the water inside the suction pile has the following problems: due to the phenomenon of sandboiling during the driving of the suction pile, sand flows into the suction pile, so the water discharged from the suction pile contains a considerable amount of foreign matter. The foreign matter in the suction pile flowed into the above-mentioned submerged pump during the process of discharging the water in the suction pile, resulting in frequent failures of the submersible pump

If sand flows into the suction pile like this, the sand will accumulate on the upper end of the suction pile and eventually block the outlet. As a result, the water inside the suction pile cannot be discharged smoothly, and the suction pile is difficult to drive in.

Also, creating incompletely driven areas in the suction pile

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