JPS635603B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for inserting a penetrating body such as a columnar body or a tubular body into a through hole provided in a structure of a building such as a ceiling or floor;
The present invention relates to a method of fixing these penetrating bodies to the through holes.

Not only high-rise buildings but also ordinary buildings made of cast concrete, or buildings that use concrete slabs manufactured by the precast method for floors and ceilings, must be covered with noncombustible materials as necessary. The supply and exhaust pipes, water supply and drainage pipes, distribution pipes, decorative pillars, etc., which have a ceiling, are usually inserted into holes drilled at desired locations and fixed after the ceiling, floor, etc. are installed.

Since this perforation has to be larger than the outside diameter of the various types of penetrating bodies mentioned above, the gap between the inner wall of the perforated hole and the penetrating body such as the pipe or pillar is backfilled with a suitable material. It needs to be fixed.

This backfill material is made of fluid, such as a cement-water mixture, and is poured into the gap. Conventionally, the gap is filled from below with a material made of wood, metal, or plastic. A combination plate in which a hole approximately equal to the outer diameter of the penetrating body is provided in the center of the plate, and the plate is cut into two along a straight line passing through the center of the hole; The brim-like body of the penetrating body is constructed using a plate cut only in the outward direction, and the brim-like body is brought into contact with the lower surface of the slab, etc., and fixed with nails, etc.
After that, in addition to the method of pouring the backfilling material, the bottom of the through hole is created by sandwiching the brim-shaped body between a band wrapped around the penetrating body and the lower surface of a slab, etc., and backfilling is performed using the same method as described above. method has been mainly used.

However, when using these methods, it is necessary to manufacture a large number of flanges to match penetrating bodies with various cross-sectional shapes and sizes, and the method of fixing the flanges, such as nailing to a slab, There is a need for improvement in the method of fixing the penetrating body by backfilling the outer periphery of the penetrating body, since it is complicated to use a fixing tool for pressing against the slab or the like.

As a result of intensive studies on these problems, the inventors of the present invention made a rapid-setting plastic material of any shape, such as a spherical mass, a string-like mass, or an irregularly shaped mass, and immediately placed the material under the gap. It is extremely easy to insert a desired thickness around the penetrating body, allow it to adhere to the outer periphery of the penetrating body, wait for it to solidify or harden, and then fill the gap with the same or different plastic material for backfilling as the structure, such as a slab. The present invention was completed by successfully fixing the penetrating body to the through hole.

That is, the gist of the present invention is to insert a penetrating body into a through hole of a structure, and fill the lowest part of the gap between the inner wall of the through hole and the penetrating body with a rapidly setting plastic material having an arbitrary shape. A method for fixing a penetrating body in a structure through-hole includes inserting a material to a desired thickness and fixing it on the outer periphery of the penetrating body, and after solidifying, filling the remaining part of the gap with a backfilling material and solidifying it.

The present invention will be explained below using the drawings.

Figures 1 to 4 show the method of backfilling using the conventional method. In Figure 1, a water supply and drainage pipe 3 is inserted into a through hole 2 drilled in the building structure 1. A vertical cross-sectional view is shown in which a brim-like body 4, which is in contact with the lower surface 1a and is provided in a brim-like manner on the water supply and drainage pipe 3, is fixed to the building structure 1 with nails 5.

The plastic material for backfilling is the water supply and drainage pipe 3 inside the through hole 2.
The outer periphery is filled and solidified.

FIG. 2 shows a view taken along the - line in FIG. 1. The cutting line 6 is provided to configure the brim 4 of the water supply and drainage pipe 3, and if the material of the brim 4 is elastic or difficult to break, the cutting line 6 is only provided on one side. But it's okay.

Figure 3 shows a longitudinal cross-section of a case where a band 7 (in this example, a wide standing band is used) is wrapped around the water supply and drainage pipe 3 instead of nailing in Figures 1 and 2, and the brim 4 is clamped and fixed. Figure 2, backfilling is performed in a similar manner.

FIG. 4 shows a view taken along the - line in FIG. 3. Fifth
The figure shows a method according to the present invention in which a quick-setting material 8 is applied to a penetrating body 3.
The figure shows a vertical cross-sectional view showing a state in which the through-hole portion on the outer periphery of the penetrating body 3 has been appropriately pushed in to a desired thickness.Once this material 8 has solidified to a certain extent, the remaining gap in the outer periphery of the penetrating body 3 can be backfilled in the same manner as before. It is done according to the rules.

FIG. 6 shows a view taken along the - line in FIG. 5. Note that the same reference numerals used in FIGS. 1 to 6 are used for the same objects.

The rapid setting material 8 suitable for the method according to the present invention has a short solidification (setting or hardening) time;
Preferably, it solidifies in about 10 to 60 minutes after adjusting the formulation, and has good adhesion to building structures (more preferably, it has adhesion to penetrating bodies).
It is generally required to have low shrinkage after solidification, to be non-combustible, at least if the building structure is non-combustible, and to be free of harmful substances.

Examples of materials that meet these requirements include those based on gypsum and those based on cement.

Here are some examples of formulations based on cement.

Silica sand 50 parts by weight Early strength cement 15 Portland cement 15 Alumina cement 10 Slaked lime 8 Methyl cellulose 2 Water 70 The present invention has been described above in detail with reference to drawings and examples, but by adopting the method of the present invention, it can be applied to conventional methods. The construction time is significantly simplified compared to conventional methods, and there is no need to manufacture and prepare various construction materials suitable for penetrating bodies and through holes, and the installation and removal processes are completely eliminated, so it can be carried out conveniently and effectively. sell.

[Brief explanation of the drawing]

Figures 1 to 4 relate to the conventional method, Figures 1 and 3 are longitudinal sectional views thereof, Figures 2 and 4 are views taken along the - and - lines in Figures 1 and 3, respectively, and Figure 5 is a FIG. 6 is a longitudinal cross-sectional view of the case where the method according to the present invention is carried out, and FIG. 6 shows a view taken along the - line.

Claims (1)

[Claims] 1. Insert the penetrating body into the through-hole of the structure, and fill the lowermost part of the gap between the inner wall of the through-hole and the penetrating body with a filling material made of a quick-setting plastic material having an arbitrary shape to a desired thickness. A method for fixing a penetrating body in a structure through-hole, which comprises inserting and fixing the penetrating body to the outer periphery of the penetrating body, and after solidifying, filling and solidifying the remaining part of the gap with a backfilling material.