JPH0412332B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

This invention relates to a vibration isolation method using continuous walls.

[Conventional technology]

BACKGROUND ART Conventionally, a method illustrated in FIG. 3 has been known as an anti-vibration method for blocking vibration noise caused by passing vehicles propagating from a roadway 1 such as a motorway or a railway to an adjacent area 2. In this method, a deep groove 3 is provided between the roadway 1 and the adjacent land 2, the groove 3 prevents linear propagation of the roadway, and the vibration is dispersed over a wide range of the adjacent land 2. This is a method of absorbing vibrations. Furthermore, as shown in FIG. 4, wall piles 4, 4, . A method of absorbing the vibration by detouring the vibration and dispersing it over a wide area is also known.
The sheet pile method described in Publication No. 13114 or JP-A-51-
There is also known one using Katsuto wall described in Japanese Patent No. 131113.

[Problem to be solved by the invention]

The conventional methods described above still cannot sufficiently absorb vibrations propagated from the roadway. For example, even if foamed polystyrene or the like is bonded to the side surface of a continuous wall with adhesive, if the vibration energy is large, the foamed polystyrene bonded integrally with the continuous wall will also act almost integrally with the continuous wall. death,
Alternatively, the vibration is directly propagated to the continuous wall from just between the foamed polystyrene sheets, so it is still not sufficient. Therefore, a technical problem arises that must be solved in order to be able to sufficiently dampen roadway vibration using the continuous wall, and the present invention aims to solve this problem.

[Means to solve the problem]

The present invention has been proposed in order to achieve the above object, and is a vibration isolation method that attempts to block vibration propagation using a continuous wall formed by sinking wall piles in a connected manner. To provide a vibration isolation method using a continuous wall, characterized in that a vibration isolating plate made of an elastic material is sunk underground so as to be in contact with the grounding side wall surface of a grounding side wall to form a vibration isolation layer. It is something.

[Effect]

In the present invention, a vibration isolating plate made of an elastic material is sunk on the ground side wall surface of the continuous wall so as to be in contact with the side wall surface. Even in the case of vibrational energy, the vibrations propagated from the roadway are absorbed or dispersed to an extent that is tolerable to humans for vibration isolation.

【Example】

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2 attached hereto. In the figure, a continuous wall A is constructed by sinking a plurality of wall piles 6, 6... into the ground in a connected manner. Therefore, it is possible to use standard specification wall piles 6, 6, etc.
In such a case, there is no need to manufacture a special product for constructing the continuous wall A, and the workability is good and the cost is low. Further, the wall piles 6, 6... are sunk to a predetermined depth to construct the continuous wall A, and a rubber plate is installed to a predetermined depth on the ground side wall surface a of the continuous wall A. A vibration isolating plate 7 made of a resilient material such as a synthetic resin plate is sunk underground so as to be in contact with the ground side wall surface a to form a vibration isolating layer T. In this way, the vibration isolating layer T is sunk underground so as to be in contact with the ground side wall surface a of the continuous wall A, and the vibrations occurring underground are first absorbed by the vibration isolating layer T. The continuous wall A absorbs and buffers vibrations that cannot be absorbed by the vibration isolation layer T and passes through the vibration isolation layer
Most of the large vibration energy can be absorbed by the interaction between the vibration isolation layer T and the continuous wall A. In addition, the code|symbol 8 in the figure is a reinforcing material, and 9 shows a joint.

【Effect of the invention】

The vibration isolation method using a continuous wall of this invention, as detailed in the above-mentioned embodiment, provides a vibration isolation layer on the ground side wall surface of a continuous wall constructed by sinking wall piles in a connected manner. The vibrations propagating from underground toward the continuous wall are first absorbed by the vibration isolation layer. Therefore, only the vibrations that have passed through the vibration isolation layer without being completely absorbed by the vibration isolation layer are further absorbed by the continuous wall. That is,
Low frequency vibrations are absorbed by the highly elastic vibration isolation layer, and high frequency vibrations are dispersed and absorbed by the highly rigid continuous wall.
Due to the mutual action of the continuous wall and the vibration isolation layer, vibrations in a wide band can be absorbed as a whole. Even in the case of large vibration energy, it is possible to obtain a vibration isolation effect tolerable to humans.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a vertical sectional side view, Fig. 2 is a sectional view taken along the line of Fig. 1, and Fig. 3 is a sectional view taken along the line shown in Fig.
FIG. 4 is a longitudinal sectional side view of a conventional vibration isolator.

[Explanation of symbols], 6...Wall pile, A...Continuous wall, 7...Vibration isolation plate, T...Vibration isolation layer, a...Grounding side wall surface.

Claims (1)

[Claims] 1. In a vibration isolation method that attempts to block vibration propagation with a continuous wall made by sinking wall piles in a connected manner, a vibration isolating plate made of an elastic material is installed on the ground side wall surface of the continuous wall. A vibration isolation method using a continuous wall, which is characterized by forming a vibration isolation layer by sinking it underground so that it can come into contact with the ground.