JP2007255146A - Draining method for building under construction - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a draining method for a building under construction capable of efficiently draining water and realizing cost reduction. <P>SOLUTION: A low floor section 3 having a floor lower than the other floor 2 is formed on a specified story 1a of the building 1 under construction, and a drain port 3a is provided in the low floor section 3. When rainwater or the like flows into the specified story 1a of the building 1, the water is collected in the low floor section 3 and drained through the drain port 3a. After draining becomes no more necessary, the drain hole 3a is filled. By employing such a draining method of the building 1 under construction, manual removal of water and draining work using a drain pump, which have to be done heretofore, are no more necessary so that water is efficiently drained and costs can be reduced. Further, after draining work becomes no more necessary, the drain hole 3a is filled so that water is surely prevented from leaking into a story 1b just below the specified story 1a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for draining a building under construction that drains water such as rainwater flowing into the building under construction.

  Buildings such as condominiums under construction have spaces on each floor for installing unit baths. The floor of such a unit bath installation space is formed one step lower than the floors of other living spaces.

  By the way, in buildings under construction, water such as rainwater may flow in before building the upper floors, roofs, and walls, and this water is one step lower than the other floors. Etc. Conventionally, when draining such water, manual pumping or drainage work using a drainage pump or the like has been performed.

However, when pumping out manually in this way, the amount of drainage could not be earned despite the heavy burden on workers, and efficiency was poor. In addition, in the case of drainage work using a drainage pump, there is a problem that the cost for operating the drainage pump becomes high.
Therefore, for example, there has been a demand for solving the above-described problems by draining water such as rainwater to the outside using a void pipe or the like embedded in a concrete slab as described in Patent Document 1.
Japanese Patent No. 3676497

However, the void pipe described in Patent Document 1 is for forming a hollow slab, and is not intended to drain rainwater as described above. For this reason, since the void pipe is not necessarily laid in the unit bus installation space or the like, a new pipe must be laid. In addition, since it is necessary to prevent water leakage to the lower floor after drainage is no longer necessary, various problems such as having to fill the hollow part of the concrete slab formed hollow by the void pipe have occurred. There was a case.
Therefore, it has been desired to develop a technique that can drain rainwater and the like without causing such a problem.

  An object of the present invention is to provide a method for draining a building under construction that can efficiently drain water and can reduce costs.

  According to the first aspect of the present invention, for example, as shown in FIG. 1, a low floor portion 3 that is one step lower than the other floors 2 is formed on a predetermined floor 1a of a building 1 under construction in advance. 3 is provided with a drain hole 3a, and when water such as rainwater flows into the predetermined floor 1a of the building 1, the water is collected in the low floor 3 and drained from the drain hole 3a. The drain hole 3a is filled.

According to the first aspect of the present invention, a low floor portion that is one step lower than the other floors is formed on a predetermined floor of a building under construction in advance, and a drain hole is provided in the low floor portion. Water such as rainwater that has flowed into the predetermined floor can be collected in the low floor portion, and the collected water can be drained from the drain hole. That is, since the low floor portion is formed one step lower than the other floors, water flowing into a predetermined floor of the building can be naturally collected into the low floor portion. Moreover, since the said drain hole is provided in this low floor part, the collected water can be drained naturally. As a result, unlike conventional systems, there is no need to perform manual pumping or drainage using a drainage pump or the like, so that drainage can be performed efficiently and costs can be reduced.
Furthermore, since the drainage hole is filled after drainage is unnecessary, it is possible to reliably prevent water leakage to the lower floor of the predetermined floor.

  For example, as shown in FIG. 2, the invention described in claim 2 is a method for draining a building 1 under construction according to claim 1, wherein the low floor portion 3 and the outside are disposed below the drain hole 3 a. A drainage pipe 4 that communicates is provided.

  According to invention of Claim 2, since the drainage pipe which connects the said low floor part and the exterior is provided under the said drain hole, water, such as rain water collected by the said low floor part, is outside. And can be drained naturally. This makes it possible to drain water more efficiently because it is not necessary to draw it out manually.

According to the present invention, water such as rainwater that has flowed into a predetermined floor of a building can be naturally collected into a low floor portion that is one step lower than other floors, and a drain hole provided in the low floor portion. Thus, the collected water can be drained naturally. As a result, unlike conventional systems, there is no need to perform manual pumping or drainage using a drainage pump or the like, so that drainage can be performed efficiently and costs can be reduced.
Furthermore, since the drainage hole is filled after drainage is unnecessary, it is possible to reliably prevent water leakage to the lower floor of the predetermined floor.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 are construction outline diagrams of a building 1 under construction to which the present invention is applied. The building 1 under construction is a reinforced concrete apartment, FIG. 1 is a perspective view of the floor slab 10 of the predetermined floor 1a as viewed obliquely from above, and FIG. 2 is the lower floor 1b of the predetermined floor 1a shown in FIG. It is the perspective view which looked up at the floor slab 10, ie, the ceiling slab 10, from below.

The building 1 under construction is provided with a plurality of dwelling units on each floor, and each of the plurality of dwelling units is provided with a space 3 for installing a unit bath.
And as shown in FIG. 1, the space 3 for installing this unit bath includes a low floor portion 3 that is one step lower than the floor 2 of other living spaces in order to prevent water from overflowing from the bathroom. It has become.
Therefore, for example, when rainwater or the like flows into the predetermined floor 1a of the building 1 under construction, the floor 2 of the other living space is unlikely to collect water, and the low floor portion 3 is likely to collect water. Become. As a result, water such as rain water can be naturally collected on the low floor 3.
And by providing the drain hole 3a in such a low floor part 3, the collected water can be drained naturally.

Although not shown, not only the lower floor 3 is made one step lower than the floor 2 of another living space, but also a portion having a lower floor surface is formed in the lower floor 3. preferable. At this time, for example, the drain hole 3a is set as the lowest part, and a part of the floor surface of the low floor part 3 is formed low within a predetermined range so as to incline toward the lowest part.
That is, by forming the drainage hole 3a in such a low part, the collected water is directed toward the drainage hole 3a as shown by the arrow in FIG. Become.

Further, when the drain hole 3a is provided, the floor slab 10 is formed by casting concrete, and at the same time, the floor slab 10 is provided so as to penetrate the low floor portion 3 and the drain hole 3a. It is assumed that the lower floor 1b is in communication.
On the other hand, when forming the low floor portion in the low floor portion 3, the forming operation is performed simultaneously with the provision of the drain hole 3a.

Furthermore, as shown in FIG. 2, a drain pipe 4 that communicates the low floor portion 3 and the outside is provided below the drain hole 3a. When the drain pipe 4 is provided, the floor slab 10 is formed and fixed to the drain hole 3a at the same time as the drain hole 3a.
And by providing the drainage pipe 4 in this way, it is possible to naturally drain the water such as rainwater collected in the low floor portion 3 to the outside. As a result, unlike the conventional case, it is not necessary to pump out manually, so that drainage can be performed more efficiently.
In the present embodiment, a hose-shaped pipe such as an electric wiring pipe is used as the drain pipe 4.

In addition, since the predetermined floor 1a is provided with a plurality of dwelling units, a drainage pipe 4 is provided on each low floor portion 3 of these dwelling units, and the drainage pipes 4 are provided to extend in the same direction. Secure.
At this time, the drain pipe 4 is suspended and supported by a plurality of suspension members 5 protruding from the ceiling slab. That is, for example, suspension support using the suspension member 5 whose tip is formed in a hook shape, or suspension such that the drain pipe 4 and the suspension member 5 are tightly coupled and supported by a wire or the like is performed.
Further, although not shown, it is preferable to install a water storage tank outside so that the tip of the drain pipe 4 faces this water storage tank.

  Next, post-processing of the drain hole 3a and drain pipe 4 after draining is not necessary will be described. That is, after the drainage is unnecessary, the drainage hole 3a is filled in order to prevent water leakage to the lower floor 1b. At this time, the drainage hole 3a is filled after the drainage pipe 4 provided below the drainage hole 3a is cut out. The drainage pipe 4 after drainage is unnecessary is cut out so as not to protrude from the ceiling slab 10 toward the lower floor 1b.

As described above, since the drain hole 3a is provided in a lower portion of the low floor portion 3, the periphery of the drain hole 3a is buried at the same time as the drain hole 3a, so that the floor surface of the low floor portion 3 is filled. Is flat.
Moreover, mortar is used in this Embodiment as a repair agent which fills the drain hole 3a and its periphery. When the mortar is used in this way, a water-permeable waterproofing agent is sprayed on the repaired portion to reliably prevent water leakage.
On the other hand, the repair agent of the present embodiment is not limited to mortar, and may be, for example, a caulking material for preventing water leakage. Moreover, if the water leak to the lower floor 1b can be prevented reliably, it is not restricted to the repair agent quoted in these this Embodiment.

According to this embodiment, water such as rainwater that has flowed into the predetermined floor 1a of the building 1 can be naturally collected into the low floor 3 that is one step lower than the other floors 2, and this low floor The collected water can be drained naturally by the drainage hole 3 a provided in 3. As a result, unlike conventional systems, there is no need to perform manual pumping or drainage using a drainage pump or the like, so that drainage can be performed efficiently and costs can be reduced.
Furthermore, since the drainage hole 3a is filled after drainage is unnecessary, it is possible to reliably prevent water leakage to the lower floor 1b of the predetermined floor 1a.

It is a perspective view which shows the low floor part of the building under construction to which this invention is applied. It is a perspective view which shows the installation state of the drain pipe which connects a low floor part and the exterior.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building under construction 1a Predetermined floor 2 Other floor 3 Low floor 3a Drain hole 4 Drain pipe

Claims (2)

  On the predetermined floor of the building under construction in advance, a low floor part that is one step lower than the other floors is formed, and a drain hole is provided in the low floor part, and water such as rainwater flows into the predetermined floor of the building. At the time, the water is collected in a low floor portion, drained from a drainage hole, and after drainage is unnecessary, the drainage hole is filled.   The drainage method for a building under construction according to claim 1, wherein a drainage pipe communicating the low floor portion with the outside is provided below the drainage hole.

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