JP2004092037A - Laying method for piping - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new piping method for water supply pipes that can substantially shorten a construction period and excels in execution, when a sheath tube header method is applied to a building of a special foundation by a heat storage floor method. <P>SOLUTION: Sheath tubes are laid on a ground level where a concrete foundation is placed, from positions where indoor headers are mounted to positions where sanitary equipment is installed. The concrete foundation is then filled throughout the inside with earth and with relatively coarse stone such as gravel beyond the ground level before subjected to leveling, whereupon concrete is further placed to a level equal to the concrete foundation to form a foundation of a building. Piping work is thereafter executed along with work such as fitting work on the building. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for laying water supply and hot water supply pipes for a house adopting a sheath pipe header method.
[0002]
Problems to be solved by the prior art and the invention
As a plumbing method for water supply and hot water supply in a house, a flexible branch pipe is inserted into a sheath pipe that was previously piped, and both ends of this branch pipe are connected to a header connected to the main pipe of the water supply or hot water supply pipe and each water pipe. The header method of connecting to surrounding equipment has become widespread. This construction method has the advantage that it requires less connecting points than branching piping in a branch shape through a joint to the water supply facility, so that water leakage due to poor construction can be suppressed and stable water supply is possible. is there.
[0003]
In general homes, solid foundations are used, in which concrete is poured all over the floor to provide a space for ventilation between the floor and the concrete surface. A pipe is laid in the space between the pipes, or a sheath pipe is buried in the concrete when concrete is poured under the floor, and the pipe is inserted through the sheath pipe.
[0004]
However, in recent years, a special foundation called a thermal storage floor method has become widespread, and as shown in FIG. 6, while contacting the underfloor and the concrete surface, and arranging reinforcing bars in the concrete in a grid, Although laying pipes for floor heating is performed, in this case, it becomes impossible to bury a sheath pipe in concrete.
[0005]
An object of the present invention is to provide a new pipe laying method capable of greatly shortening the construction period and having excellent workability when applying the sheath pipe header method to a building with a special foundation.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is a method of laying a pipe for branching a main pipe into a plurality of branch pipes via a header, and connecting these branch pipes to corresponding water supply facilities, wherein a concrete foundation is cast. Saya pipes are laid on the ground surface from the position where the indoor header is attached to the position where each water supply facility is installed, and the ends of these laid sheath tubes are projected higher and higher than the concrete foundation. Then, fill the entire inside of the concrete foundation, spread relatively coarse stones such as gravel above the ground surface, level the ground, and cast concrete on it to form the foundation of the building, After that, in parallel with the construction work of the building, metalwork, woodwork, etc., installation of the header, insertion of the branch pipe into the laid saya pipe, connection of the main pipe and the header, each water supply equipment It is characterized by performing the plumbing, such as connection to the branch pipe. Further, the present invention is characterized in that when pouring concrete inside a concrete foundation, reinforcing bars are arranged in a grid shape and floor heating piping is laid and buried in the concrete.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
A preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a system diagram of an example of a pipe laid according to the present invention, FIG. 2 is a diagram showing a position of a water supply facility and a layout of a route in an example of a building to which the present invention is applied, and FIG. FIG. 4 is a diagram for explaining the construction process of the laying method of the present invention, and FIG. 5 is a cross-sectional end view of a fixture for fixing the sheath pipe to a concrete foundation.
[0008]
The present invention is a method of laying a water supply pipe by a sheath pipe header method in a special foundation building called a thermal storage floor method. As described above, the sheath pipe header method is a method in which a branch pipe branched from a main pipe of water supply or hot water supply pipe via a header is directly connected to each water circulating equipment, and a piping system is as shown in FIGS. 1 and 2. A water supply pipe 2 connected to a water tap 1 and a water supply pipe 4 connected to a water heater 3 are connected to headers 5 and 5, respectively, and each branch pipe 6 branched from both headers is connected to a bathroom, a washroom, a washing machine, It is configured to be connected to each of the water circulating facilities 7 such as a toilet and a sink. Each of the branch pipes is inserted into a sheath pipe that is laid in advance, and a flexible resin pipe such as a flexible polybutene pipe is used for the sheath pipe.
[0009]
Referring to FIG. 4, the construction process of the present invention will be described. First, a concrete foundation 9 is cast on the ground surface (FIG. 4A). This foundation is formed by a continuous fabric foundation along the exterior and main interior walls of the building.
[0010]
After the concrete foundation 9 has been cast, the sheath pipe 8 is laid on the ground surface inside the concrete foundation 9 from the position where the indoor header is attached to the position where the water plumbing facilities 7 are installed (FIG. )). As shown in FIG. 2, when the headers 5 and 5 for water supply and hot water supply are arranged at substantially the center of the building, the sheath pipes 8 are laid from the positions to the installation positions of the respective water circulating facilities 7. In addition, a sheath pipe 8 is also laid on the piping route of the water supply pipe 2 and the hot water supply pipe 4 connected to the outdoor main faucet and the water heater 3.
[0011]
The sheath pipe 8 is laid along the wall surface of the concrete foundation 9 or through a hole formed in the concrete foundation 9 so that the sheath pipe 8 does not shift from the laying position as shown in FIG. The ends of the sheath tube 8 are fixed to the installation positions of the header 5 and the water circulating equipment 7 by using a fixture 10 fixed to the concrete foundation 9 and holding the outer periphery of the end of the sheath tube 8 at a fixed position. Keep it. At this time, the end of the sheath tube 8 is made to protrude sufficiently higher and higher than the concrete foundation 9.
[0012]
If the sheath tube 8 is laid, fill the earth 11 with earth and sand fine enough to cover the sheath tube 8, level the ground, and then place relatively coarse stones such as gravel on the ground surface. The gravel layer 12 is formed by being laid so as to be higher. Then, use a rammer or the like to crush and level the ground. Furthermore, reinforcing steel bars are arranged in a grid pattern, and polybutene pipes for heating are laid at substantially uniform intervals. Then, concrete is poured on the pipes until the height is almost the same as the concrete foundation 9. A concrete layer 13 is formed and cured until it is completely hardened (FIG. 4C). In addition, the laying method of the present invention can be applied even when the floor heating pipe is not laid in the concrete.
[0013]
Thereafter, plumbing work is performed in parallel with work such as fitting work, metal work, and wood work for the building. That is, the headers 5 and 5 are installed, the branch pipe 6, the water supply pipe 2 and the hot water supply pipe 4 are inserted into each of the laid sheath pipes 8, and these pipes are connected to the headers 5 and 5 respectively. The laying work of the water supply pipe is completed, for example, by connecting the pipe 6 to the corresponding water circulating equipment 7 and connecting the water supply pipe 2 to the intake cock.
[0014]
【The invention's effect】
According to the pipe laying method of the present invention, since the sheath pipe is laid together with the formation of the foundation of the house, the subsequent pipe work is completed in a short time, and the work of laying the water supply and hot water supply pipes is an obstacle to floor heating pipes and the like. Therefore, it is possible to efficiently perform the piping work by dividing the construction section.
[Brief description of the drawings]
FIG. 1 is a connection system diagram of an example of a pipe laid according to the present invention.
FIG. 2 is a diagram showing an example of a location of a water supply facility of a house and an arrangement of pipes to which the present invention is applied.
FIG. 3 is a plan view of a base of an example of a house to which the present invention is applied. It is a principal part expanded sectional view of the packing of FIG.
FIG. 4 is a view for explaining a construction step of the laying method of the present invention.
FIG. 5 is a cross-sectional end view of a fixture for fixing the sheath tube to a concrete foundation.
FIG. 6 is a diagram showing a house on a special foundation.
[Explanation of symbols]
Reference Signs List 1 intake tap, 2 water supply pipe, 3 water heater, 4 hot water supply pipe, 5 header, 6 branch pipe, 7 water supply facility, 8 sheath pipe, 9 concrete foundation, 10 fixture, 11 embankment, 12 gravel layer, 13 concrete layer

Claims (2)

A pipe laying method in which a main pipe is branched into a plurality of branch pipes via a header, and these branch pipes are connected to corresponding plumbing equipment,
Saya pipes are laid on the ground surface on which the concrete foundation is cast from the position where the indoor header is attached to the position where each water-supply facility is installed, and the ends of these laid sheath tubes are higher than the concrete foundation. Projecting upwards,
Next, fill the entire inside of the concrete foundation and spread relatively coarse stones such as gravel above the ground surface to level the ground, then cast concrete on it to form the foundation of the building,
After that, in parallel with the construction work of the building, metal work, wood work, etc., installation of the header, insertion of the branch pipe into the laid sheath pipe, connection of the main pipe and the header, branching of each water supply facility A pipe laying method characterized by performing pipe work such as connection with pipes. The method of laying a pipe according to claim 1, wherein, when the concrete is poured into the inside of the concrete foundation, rebars are arranged in a grid and floor heating pipes are laid and buried in the concrete. .

Images