JPH0215755B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field The present invention relates to buried piping buried in the floor, wall, etc. of a building.

(2) Prior Art The construction of conventional underground piping will be explained with reference to the attached drawings. FIG. 1 is a cross-sectional view of piping buried in the floor of a building. Assemble the formwork 1 and mark out the installation position of the piping 2 to be buried in the floor.

After that, the reinforcing bars 3 are arranged at predetermined intervals in the vertical and horizontal directions,
Arrange reinforcement in a grid pattern. On the other hand, in processing factories,
A pipe 2 to be buried in the floor is manufactured, and in order to fix the pipe 2 on the reinforcement, fixing bolts 4 and support frames 5 are temporarily fixed with nuts 6 at predetermined intervals. Adjust the position of the piping 2 to which the support frame 5 is attached so that it does not interfere with the reinforcing bars 3, and install it along the lines marked on the formwork 1, and place the support frame 5 on the formwork 1 with nails. At the same time, the nut 6 is tightened to secure the pipe 2 to the support frame 5. Thereafter, reinforcing bars 7 called upper end reinforcements are arranged in a grid pattern on the pipe 2 to complete the reinforcement work. After that, concrete is poured and the floor is completed.

The conventional construction of the pipe 2 buried in the floor of the building was as described above, but it had the following drawbacks.

That is, with such a method, the installation position of the buried pipe 2 cannot be determined after concrete is poured. Even if the location is clearly indicated on drawings, etc., the pipes buried due to the pressure and vibration of the concrete filling pump during concrete placement2
Due to misalignment, etc., it cannot be guaranteed that the installation has been carried out according to the drawings, making it impossible to accurately determine the buried position.

For this reason, changes to the construction contents after construction,
When expansion work occurs and requires drilling, chiseling, etc. in the floor, the exact location of the buried piping 2 is not known, so the incorrectly buried piping 2 may be removed.
There is also a possibility that it may cause damage. In the event of such an accident,
In some cases, equipment must be shut down to perform restoration work. Furthermore, in order to accurately locate the buried pipe 2, extensive inspection methods such as X-ray photography of the building must be used, which requires a great deal of time and expense. By the way, as a technology for displaying the position and buried depth of buried pipes,
There are techniques as shown in Japanese Utility Model Publication No.-8057 and Japanese Utility Model Publication No. 50-28004. However, these techniques are unsuitable for pipes buried in concrete, such as walls and floors of buildings, because the position display means cannot be installed flush with the buried surface of the concrete.

(3) Purpose of the Invention The present invention has been made in view of the above circumstances, and its purpose is to be able to cope with the movement of the piping 2 during burial work, and also to be able to cope with the movement of the piping 2 that is permanently buried. The purpose is to obtain a means of indicating the position.

(4) Structure of the Invention The present invention provides a means for indicating the position of the buried pipe 2 by attaching a rod 9 that protrudes above the floor and a display plate to the bolt member 4 for fixing the pipe.
The position and depth of the buried pipe 2 can be easily confirmed.

(5) Embodiment of the invention An embodiment of the invention will be described below with reference to the drawings. FIG. 2 is a sectional view showing the buried state of the buried pipe of the present invention. The pipe 2 placed on the pipe support frame 5 is fixed with a bolt member 8 and a nut 12, and a rod 9 is welded to the top of the bolt member 8 to be exposed on the buried surface, and the end of this rod 9 is connected between the buried surface and the surface. A display plate 14 is provided at one end.

FIG. 3 is a diagram showing a rod-attached bolt member 13 consisting of a bolt member 8 and a rod 9, which are the constituent parts of the present invention.

As an example, a rod 9 indicating the position and depth of the buried pipe is fixed to a U-shaped bolt member 8 by welding or the like. There is a scale 10 on the rod 9 to read the depth.
is pre-engraved. At the end of the U-shaped bolt member 8, a screw 11 is cut and a nut 12 is screwed.

FIG. 4 shows a plan view a and a side view b of the display plate. The display plate 14 has a hole 15 into which the rod 9 can be inserted from the upper end. The upper surface 16 of the display plate is engraved with the pipe name and pipe size, and also has a space for marking indicating the depth from the floor to the upper surface of the buried pipe.

Next, a construction method using the rod bolt member 13, which is a component of the present invention, will be explained using FIG. 2.

First, the formwork 1 is assembled and the installation position of the piping 2 to be buried in the floor is marked out. Subsequently, reinforcing bars 3 are arranged in a grid pattern at regular intervals in the vertical and horizontal directions. On the other hand, in the processing factory, piping 2 to be buried in the floor is manufactured,
After placing the pipe 2 to be buried on the pipe support frame 5, the rod bolt member 13 according to the present invention shown in FIGS. 2 and 3 was attached from above the pipe 2, and holes were pre-drilled in the pipe support frame 5. Insert the nuts into the two holes and tighten the nuts 12 to temporarily fix them at regular intervals. Adjust the position of the pipe 2 to which the bar bolt member 13 is attached so that it does not interfere with the reinforcing bars 3, and install it along the line marked on the formwork 1, and place the support frame 5 on the formwork 1. While being fixed with nails, the pipe 2 is secured to the support frame 5 by tightening the nut 12.

Thereafter, the reinforcing bars 7 are arranged in a grid pattern on the piping 2, and once the reinforcing work is completed, concrete is poured.
After concrete is poured, the work platform is immediately passed over the concrete surface, and the surface is finished with a trowel while standing on top of it to ensure a horizontal surface and to make the surface smooth. At this point, display plate 14 on bar 9
Insert the display plate and push it in so that the top surface 16 of the display plate matches the concrete surface. Next, the depth dimension is read from the scale 10 engraved on the rod 9 on the top surface 16 of the display plate, the dimension is written on the tag 17, and the tag is tied to the rod 9. When the concrete has finished curing and solidified, the depth dimension written on the tag is stamped on the display plate 14. The portion of the rod 9 protruding from the top surface 16 of the display plate is cut and finished flush with the top surface 16 of the display plate.

(6) Other embodiments of the invention Other embodiments of the invention are shown in FIGS. 5 to 7. In the example shown in FIG. 5, an H-shaped bolt 9b is used instead of the U-shaped bolt member 8.
In the example shown in FIG. 6, the display plate 14a is a simple flat plate provided with holes 15a. Figure 7 shows display plate 1 when there is a branch point in the buried pipe.
An example of 4b is shown below.

(7) Functions and Effects of the Invention As explained above, by using the buried piping according to the present invention, the installation position of the permanently buried piping 2 can be maintained regardless of the displacement of the position indicating plate during construction work. , the depth can be displayed accurately. In addition, it is possible to avoid damage to the buried pipe 2 due to the drilling work in the frame due to additions and remodeling work due to the adoption of new technology.
It is easy to understand that there will be no equipment stoppages due to damage, and the operating rate will improve. Furthermore, in the present invention, since the display plate is installed almost flush with the buried surface, after cutting the bar that protrudes above the buried surface, there is no protrusion on the buried surface, causing the worker to trip and fall. This danger can be prevented. Moreover, since the cutting point is simply a bar, it can be cut relatively easily.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing the buried state of a conventional buried pipe, Fig. 2 is a sectional view showing the buried state of the buried pipe of the present invention, and Fig. 3 is a sectional view showing the buried state of the buried pipe of the present invention. FIG. 4 is a front view showing the bolt member, FIG. 4 is a view showing a display plate which is a component of the present invention, and FIGS. 5 to 7 are views showing other embodiments of the component of the present invention. 1... Formwork, 2... Piping, 3, 7... Rebar, 4
... Bolt member, 5 ... Piping support frame, 6, 12
... Nut, 8 ... Bolt member, 9 ... Rod, 10
... Depth display scale, 13 ... Bolt member with rod, 14 ... Display plate, 15 ... Display plate insertion hole, 16 ... Display plate top surface.

Claims (1)

[Claims] 1 Piping that is fixed to a pipe support frame with bolt members and buried in concrete such as the floor and walls of a building, and a pipe that is fixed almost perpendicularly to the bolt member and has a scale engraved to indicate the buried depth of the pipe and is used for concrete curing. a rod from which the protrusion on the buried surface is later cut;
After the concrete is placed and before the concrete is cured, the rod is provided with an indication plate that is inserted substantially flush with the buried surface and after the concrete cures, the depth of burial of the pipe is engraved. Piping.