JPS587026A - Driving method for metal pile - Google Patents

Abstract

PURPOSE:To reduce the production of a noise at a time when a pile is driven, by driving the pile under a condition that a steel pipe pile is filled with fluid. CONSTITUTION:A steel pipe pile 2 is set in a given position, and the pile 2 is filled from the upper part with fluid 3. The upper part of the pile 2 is then struck with a hammer 11 of a pile driving device 1. Water, sand, and earth and sand are used as the fluid 3. A bottom plate 4 has elasticity, and it mates the pile 2 to prevent the fluid, especially, water from badly leaking into a ground. Even if the pile 2 is struck, since the pile 2 is filled with the fluid 3, the pile 2 is increased in the vibration loss of the pile 2, and forms a vibrating system having a less sound, which results in enabling the reduction in a noise produced by the pile 2.

Description

[Detailed description of the invention] This invention relates to a method for driving metal piles.

Conventionally, in order to drive pile bodies made of metal piles, such as steel pipe piles, into the ground, there was a method that was highly efficient and easy to handle.
Focusing on the fact that it is inexpensive, the pile driving machine applies driving force such as impact force to the steel pipe pile. However, metal piles such as steel pipe piles have a higher natural frequency as a mm dynamic system and a higher Q of vibration than concrete piles, so it is difficult to apply driving force with a pile driver. When applied, they emit more noise than concrete piles, resulting in their use being restricted in areas with dense buildings, schools, and hospitals, or subject to time restrictions.

In view of the above-mentioned dedication, this invention aims to reduce the noise during driving by applying driving force to the metal pile in a state where the metal pile is filled with a fluid.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a pile driving machine that applies driving force such as impact force to a steel pipe pile 2, which is a metal pile, through a hammer 11. 3
is a fluid filled in the steel pipe pile 2; this fluid 3 is made of water, sand, earth and sand, gravel, pebbles, soil, rubble, etc.; 4 is a bottom plate provided as necessary; for example, It has elasticity and is fitted into the steel pipe vile 2 to prevent the fluid 3, especially water, from leaking into the ground.

In addition, this bottom 84 can easily shift upward in seconds as the ground within the steel pipe pile 2 is pushed up as the steel pipe pile 2 is driven. A hole 21 or a notch 22 is provided in the upper part of the steel pipe pile 2, that is, in the vicinity where the hammer 11 directly contacts, as necessary, so that the fluid 3 filled in the steel pipe pile 2 can flow out during driving. provided. In addition, instead of processing the steel pipe pile 2 in this way, for example, by providing an auxiliary tool between the hammer 11 and the copper pipe pile 2, or by considering the shape of the hammer 11, it is possible to It goes without saying that the fluid 3 in the container 2 may flow out depending on the injection lid.

Therefore, in order to drive the steel pipe pile 2 into the ground according to the present invention, the steel pipe pile 2 is set at a predetermined position, and the fluid 5 is filled from the upper part of the steel pipe pile 2. Thereafter, a portion of the steel pipe pile 2 may be struck by the pile driving machine 1 in the same manner as in the conventional method.

Even if the steel pipe bile 2 is hit in this way, since the steel pipe bile 2 is filled with the fluid 6, the loss of vibration of the steel pipe bail 2 will be very large, resulting in a vibration system with little sound, and the steel pipe Noise from 2 can be reduced.

As described in detail above, according to the present invention, it is possible to reduce the vibration when hitting a gold M4 bail with an extremely simple structure and at low cost, and it is possible to reduce noise in this type of pile hitting method.

[Brief explanation of the drawing]

Figure 1 is a schematic configuration diagram for explaining one embodiment of the present invention, and Figures 2 and 6 are schematic diagrams showing the upper quarters of different steel pipe piles, respectively. 1: Pile driver, 2: Gold WH bail (steel pipe bail χ6: fluid, 4: bottom plate. Patent applicant Nissin Electric Co., Ltd.

Claims (3)

[Claims] (1) With a metal pile filled with fluid,
A method for driving metal piles by applying driving force to the metal piles. (2) A method for driving metal piles according to claim 1, wherein the moving object is water. (3) The method for driving metal piles according to claim 1, wherein the fi moving body is a mixture of earth and sand and water.