JP2002235334A - Vibration reducing method of building making use of organic foam - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration reducing method of a building making use of organic foam capable of simply carrying out various kinds of works at a low cost for reducing vibrations making use of the organic foam. SOLUTION: For reducing vibrations of the building 20 occurring by vibrations transferred through the ground G, the granular organic foam 1 is prepared, the granular organic foam 1 is paved on the excavated bottom G1 of an excavated groove GA excavated for constructing a continuous footing 21 to form an organic foam layer 10, and the continuous footing 21 can be constructed on the organic foam layer 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reducing vibration of a building using an organic foam for reducing the transmission of traffic vibration, track vibration, earthquake, etc. to the building via the ground.

[0002]

2. Description of the Related Art In order to reduce the vibration of buildings such as houses due to traffic vibrations or earthquakes caused by vehicles traveling on roads or elevated tracks, conventionally, the structures are generally laminated on the foundations of buildings. Installation of devices such as rubber, sliding bearings and rolling bearings has been performed. However, when these devices are used, the devices themselves are expensive, and a work to make the foundation a double structure for installing the devices and a work for elastically supporting the devices in the vertical direction are required. There is a problem that costs are increased.

[0003] In order to solve this problem, a low-cost foamed resin base is installed under the foundation of a building by interposing a comb-like connecting molded body having an air layer, thereby preventing an earthquake,
A basic structure of a building has been proposed in which traffic vibrations and the like are prevented from being transmitted to the building (Japanese Patent No. 298060).
No. 4). In addition, similarly to the above, a low-cost anti-vibration wall made of a block-shaped synthetic resin foam is provided in the ground to prevent traffic vibrations and the like from being transmitted to the site along the ground and buildings via the ground. A ground vibration isolating wall structure has been proposed (Japanese Patent Application Laid-Open No. H11-124872). In addition, by providing a vibration isolator made of similarly low-cost styrofoam plates between the basement wall and the retaining wall of the building, vibrations that propagate from the outside such as traffic vibrations can be directly transmitted to the basement wall. There has also been proposed an underground vibration damping structure for a building in which the vibration is prevented (Japanese Patent No. 2502019).

[0004]

However, in the above-mentioned basic structure of the building and the vibration isolating wall structure, a resin such as polystyrene foamed into beads is put into a mold, and then heated to form an oval or plate. The foamed resin plate molded as a plate-like member of a certain shape such as the shape, under the foundation of the building,
Or, it is used by arranging the ground in the excavated trench. Therefore, when trying to mold the foamed resin plate to the basic shape or the shape of the excavation groove, the shape is different each time, so that many types of molds must be manufactured, and the cost for molding the foamed resin plate increases. Has problems. On the other hand, if the foamed resin plate is manufactured in a predetermined shape, and cut into the required shape at the site according to the basic shape or the shape of the excavation groove, the cost required for mold manufacturing can be reduced. However, there is a problem that the cutting work on site requires much time and labor, and the construction is complicated, so that the construction cost is increased and the construction period may be delayed.

[0005] Further, when the foamed resin plate is cut, waste generated as cut pieces must be processed, so that there is another problem that the processing work is troublesome and the processing cost is increased. are doing.

An object of the present invention is to propose a method of reducing vibration of a building using an organic foam, which can solve the above-mentioned problems in the prior art.

[0007]

In order to solve the above problems, according to the first aspect of the present invention, in order to reduce the vibration of the building caused by the vibration propagating through the ground, the foundation of the building is constructed. A vibration reduction method using an organic foam to be used, in which a particulate organic foam is prepared, and the particulate organic foam is placed on a digging bottom of a digging hole excavated for the foundation part construction. A method for reducing vibration of a building using an organic foam, characterized in that an organic foam layer is formed by laying the foam and a base portion is constructed on the organic foam layer, is proposed.

According to a second aspect of the present invention, in the first aspect of the present invention, the organic foam layer is formed by using a bag of the particulate organic foam. A vibration reduction method for a building using a system foam is proposed.

According to the third aspect of the present invention, in order to reduce the vibration of the building caused by the vibration propagating through the ground, a vibration reducing wall is constructed by using an organic foam on the ground around the building. A vibration reducing method using an organic foam for preparing a particulate organic foam, and forming the particulate organic foam in a digging trench excavated to construct the vibration reducing wall. A vibration-reducing method for a building using an organic foam, characterized in that a vibration-reducing wall is constructed by filling the building, is proposed.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the vibration-reducing wall is formed by using a bag of the particulate organic foam. A vibration reduction method of a building using a body is proposed.

According to the fifth aspect of the present invention, the organic foam used for constructing the pile foundation of the building is used to reduce the vibration generated in the building due to the vibration transmitted to the pile of the building via the ground. A vibration reduction method, in which a drilling hole is drilled in order to build the pile, and the pile wound around a bag packed with a particulate organic foam is built in the drilling hole and the pile is wound. A vibration reduction method for a building using an organic foam, characterized in that the foundation is constructed, is proposed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a side view showing an example of an embodiment of a building in which a foundation has been constructed to reduce the vibration of the building caused by the vibration propagating through the ground by the method of the present invention. Here, the case where the organic foam layer 10 is formed by the method of the present invention below the fabric base 21 of the building 20 is shown. FIG. 2 is an enlarged cross-sectional view showing an enlarged basic structure of the building 20 shown in FIG.

Referring to FIGS. 1 and 2, a method of constructing the foundation of the building 20 will be described. First, the ground G of the portion where the cloth foundation 21 of the building 20 is to be constructed is excavated to a required depth to form the excavation groove GA. After that, the excavated bottom G1 is compacted by using a rammer or the like to level the ground, and a sheet 3 is laid in the entire excavated groove GA so that the groove shape is not disturbed.

Next, as shown in FIG. 3, a bag-filled organic foam 1 ′ in which a required amount of the particulate organic foam 1 is packed in a bag 2 is prepared.

Thereafter, the bag-filled organic foam 1 'is put into the excavation groove GA, and the organic foam 1 is spread over the excavated bottom G1 while the organic foam 1 remains in the bag 2. Bag 2
Can be deformed according to the basic shape, so that it can be deformed on the sheet 3 in the digging groove GA and replaced with the digging groove GA shape in place of the split stone. The organic foam layer 10 having a required thickness can be laid.

Thereafter, a known method of casting a level concrete 22 made of mortar on the organic foam layer 10, placing a formwork on the level concrete 22, arranging reinforcing steel, and further casting concrete. The cloth foundation 21 is constructed by the above, and the building 20 is constructed.

As described above, the organic foam layer 10 is laid between the cloth foundation 21 and the excavated bottom G1 of the ground G.
The organic foam 1 reflects and absorbs the vibration that propagates from the traveling train T to the ground G, and makes it difficult for the vibration that propagates from the traveling train T to propagate through the ground G to the building 20 to vibrate. Can be reduced. Further, since a method of packing the organic foam 1 in the form of particles into the bag 2 and laying it on the excavated bottom G1 of the ground G so as to be deformable according to the shape of the excavated groove GA and forming the organic foam layer 10 was used, There is no need to cut and form the organic foam board according to the shape, and it is not necessary to generate cut pieces as waste.

In the case of FIGS. 1 and 2, the particulate organic foam 1 is packed in the bag 2 and used, but it may be spread directly on the excavated bottom G1 of the ground G without packing in the bag 2. Thus, the same vibration reduction effect can be achieved.

FIG. 4 is a cross-sectional view showing another embodiment using an organic foam under the foundation of a building by the method of the present invention. The basic shape of the building is a solid foundation 24. This is different from the embodiment shown in FIG. 4 that are the same as those in FIG. 2 are denoted by the same reference numerals.

The construction sequence from the excavation of the ground G to the construction of the solid foundation 24 will be described. First, a packaged organic foam 1 ′ in which the organic foam 1 is packed in a bag 2 is prepared.
Next, after excavating the ground G in the portion where the solid foundation 24 is to be constructed, the excavated bottom G1 of the excavated hole GB is compacted with a rammer or the like, and then the sheet 3 is laid in the entire excavated hole GB. Next, a bag-packed organic foam 1 ′ is placed on the sheet 3.
Are spread out in conformity with the shape of the excavation hole GB to form the organic foam layer 10 having a required thickness. Thereafter, a level concrete 22 is cast on the organic foam layer 10, a formwork is installed on the level concrete 22, a reinforcing bar is provided, and furthermore, concrete is cast, and the solid foundation 24 is cast. Build and build a building (not shown).

Therefore, since the organic foam layer 10 is formed under the solid foundation 24 of the building, the vibration of the building due to the vibration transmitted through the ground can be reduced. Furthermore, since the organic foam layer 10 is formed using the particulate organic foam 1, the drilled hole G
FIG. 1 shows that there is no need to cut the organic foam board according to the shape of B, and it is not necessary to treat the cut pieces.
The same effect as that of the embodiment can be obtained.

Next, FIG. 5 is a sectional view showing another embodiment of the present invention. Here, an organic foam is used in the ground around a building by the method of the present invention. An anti-vibration wall is formed. 5 that are the same as those in FIG. 2 are denoted by the same reference numerals.

FIG. 6 is an enlarged sectional view of a main part of FIG. 5, and the construction of a vibration-proof wall by the method of the present invention will be described with reference to FIG.

First, a required amount of the particulate organic foam 1
Is prepared in a bag 2, and the ground G of the building G is excavated from the ground G of the building 20 at an appropriate place such as a direction where vibration is generated such as a train T. , To form a trench GC having a required depth and width. After that, the prepared organic foam 1 'packed in the bag is cut into the trench G
Insert into C. Here, since the bagged organic foam 1 'can be deformed according to the shape of the excavation groove GC, it can be filled so as to fill the excavation groove GC only by inserting it into the excavation groove GC, Thereby, the vibration-proof wall 12 by the bag-filled organic foam 1 'can be constructed.

Therefore, as shown in FIG.
Organic foam 1 in ground G between building 20 and train T
Is constructed, and the vibration of the building 20 due to the vibration propagating from the traveling train T to the ground G can be effectively reduced. In addition, the organic foam 1 in the form of particles is packed in the bag 2 and the excavation groove G is freely shaped.
Since the method of filling C and forming the vibration isolating wall 12 was used, there was no need to cut and form the organic foam board according to the shape of the excavation groove GC, and no cut pieces as waste were generated. The advantage that no processing needs to be performed can be obtained.

In the case of FIGS. 5 and 6, the particulate organic foam 1 is packed in the bag 2 and used. The anti-vibration wall 12 may be formed so as to fill the excavation groove GC.

FIG. 7 is a side view showing another embodiment according to the construction method of the present invention. In this embodiment, a structure for reducing the vibration generated in the building by the vibration propagating to the pile of the building via the ground is shown. An example is shown in which vibrations are reduced by providing an organic foam on the pile.

Referring to FIG. 7, from the excavation of the ground G to the building 2
The construction order up to the construction of the pile foundation of No. 0 will be described. First, a bag-packed organic foam 1 ′ prepared by packing a required amount of the particulate organic foam 1 in a bag 2 is prepared, and the bag-packed organic foam 1 ′ is formed of a plurality of piles 25 of the building 20. A vibration reduction pile 13 is prepared by winding the upper end portion as shown. As the pile 25, any type such as a ready-made concrete pile or a steel pipe pile may be used. Next, the ground G at the portion where the vibration reduction pile 13 is to be built is excavated to a required depth using an earth auger or the like to form a borehole GD.
D is inserted and erected to complete the construction of the pile foundation, and then the building 20 is constructed.

As described above, the pile foundation is constructed by using the vibration reducing pile 13 in which the bag 2 packed with the particulate organic foam 1 is wrapped around the pile 25 of the building 20 so as to be deformable. Vibration propagating from the train T to the ground G causes the building 20
Is reduced so that it is not necessary to cut and form the organic foam board according to the shape of the pile 25, and the cut pieces are not generated as waste.

As described above, the vibration of the building 20 is reduced by the vibration propagating through the ground G by using the organic foam 1 for the foundation or the pile of the building 20. There is no need to cut the organic foam board in accordance with the hole shape, and the construction is simplified, so that no labor is required, the construction cost can be reduced, and the construction period can be shortened. Further, since the organic foam board is not cut, no cut pieces that become waste are generated, so that there is no need to perform the processing, and an effect that the processing cost is not required can be obtained.

[0032]

According to the present invention, the vibration of the building is reduced by the vibration propagating through the ground by using a particulate organic foam for the foundation or the pile of the building. The work of cutting the organic foam board according to the shape and the shape of the excavation hole becomes unnecessary. Therefore, the construction of various constructions for reducing vibration using the organic foam is simplified, so that the construction cost can be reduced and the construction period can be shortened. In addition, since no cutting work of the organic foamed board is required, no cut pieces as waste are generated, and there is no need to carry out the processing, so that the processing cost is not required, and thus it is economical.

[Brief description of the drawings]

FIG. 1 is a side view partially showing an example of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing a main part of the building of FIG. 1 in an enlarged manner;

FIG. 3 is an enlarged detailed view of the bagged organic foam shown in FIG. 2;

FIG. 4 is a cross-sectional view showing another embodiment of the present invention.

FIG. 5 is a side view showing another embodiment of the present invention in partial cross section.

FIG. 6 is an enlarged view of a main part, showing a main part of FIG. 5 in an enlarged manner.

FIG. 7 is a side view showing a still another embodiment of the present invention in a partial cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Organic foam 1 'Bag-filled organic foam 2 bags 3 Sheets 10 Organic foam layer 12 Anti-vibration wall 13 Vibration reduction pile 20 Building 21 Cloth foundation 22 Level concrete 24 Solid foundation 25 Pile G Ground G1 Excavated bottom GA Drilling groove GB Drilling hole GC Drilling groove T Train

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koichi Nagase 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Yoshiaki Nagataki 1-25, Nishishinjuku, Shinjuku-ku, Tokyo No. 1 Taisei Corporation (72) Inventor Norio Taguchi 1-25-1, Nishi Shinjuku, Shinjuku-ku, Tokyo Taisei Corporation (72) Inventor Hiroshi Jinnai 1-25-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei Corporation (72) Inventor Tomoko Aihara 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo F-term (reference) 2D046 DA11

Claims (5)

[Claims] 1. A vibration reduction method using an organic foam used for constructing a foundation of a building for reducing vibration of the building caused by vibration propagating through the ground, comprising: A foam is prepared, and the particulate organic foam is spread on a digging bottom of a digging hole excavated for constructing the foundation to form an organic foam layer, and a foundation is formed on the organic foam layer. A method of reducing vibration of a building using an organic foam, characterized in that a part is constructed. 2. The vibration of a building using an organic foam according to claim 1, wherein the organic foam layer is formed using a bag of the particulate organic foam. Reduction method. 3. An organic foam for constructing a vibration-reducing wall using an organic foam on the ground around the building in order to reduce the vibration of the building caused by the vibration propagating through the ground. A vibration reduction method used, comprising preparing a particulate organic foam and filling the particulate organic foam into a digging trench excavated to construct the vibration reducing wall. A method of reducing vibration of a building using an organic foam, wherein a wall is constructed. 4. The method for reducing vibration of a building using an organic foam according to claim 3, wherein the vibration-reducing wall is formed by packing the particulate organic foam in a bag. . 5. A vibration reduction method using an organic foam used for constructing a pile foundation of a building in order to reduce vibration generated in the building due to vibration propagating through a ground to a pile of the building, In order to build the pile, a drill hole was excavated, and the pile wound with a bag of particulate organic foam was built into the drill hole to perform the pile foundation construction. A vibration reduction method for buildings using an organic foam.