JPH0830343B2 - Implantable formwork and wall waterproofing method using the formwork - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a function of discharging surplus water of unconsolidated concrete after placing concrete and improving the waterproof performance of concrete and a function of preventing water leakage from an outer wall after solidification of concrete. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driven formwork and a wall waterproofing method using the formwork.

[0002]

2. Description of the Related Art Basically, waterproofing methods for underground outer walls can be classified into three methods. The first method is a method called concrete frame waterproofing that improves the properties of the concrete to be poured. It is a method of draining surplus water of fresh concrete by using a water-absorbing / permeable formwork to make the concrete dense, and There is a method of improving the waterproof performance of concrete by adding a water-repellent admixture therein. The second method is a method called outer waterproofing, in which waterproofing is performed between the earth retaining wall and the skeleton concrete, and there are methods such as applying waterproof mortar to the earth retaining wall and fixing a sheet to the earth retaining wall. is there. The third method is a method called inner waterproofing in which the room side of the skeleton concrete is waterproofed. It is a method of applying waterproof mortar to the skeleton concrete, a method of forming a waterproof film on the skeleton concrete, There is a method to prevent water leakage to the room side that uses the wall as a double structure and uses it as an underground space.

[0003]

The first method described above is
Insufficient waterproof performance against waterproof weak points such as cracks and separators that occur in concrete. The second method is reliable in terms of waterproof performance, but has drawbacks such as a long construction process, high construction cost, and unusable when work space cannot be secured. In the third method, the method of applying waterproof mortar to the skeleton concrete and the method of forming a waterproof film on the skeleton concrete have a problem in reliability, while the method of doubling the underground wall is reliable in waterproofing. Although it is expensive, it is necessary to carry out work such as block stacking work associated with the construction of double walls and waterproof mortar finishing work for the water channels under the space of the double walls, which requires a large number of days with special technicians.

In another prior art solution to the above problems,
A drainage mat is attached to the concrete pouring surface side of a formwork substrate made of non-permeable synthetic resin, and air caps projecting toward the concrete pouring surface side are formed in a staggered manner on this drainage mat. A water permeable formwork to which a water permeable nonwoven fabric is attached to the cap is well known.

In this prior art, since the fluid concrete at the time of placing is supported by the substrate, the drain mat has low rigidity and weak strength. Moreover, since the amount of protrusion of each air cap formed on this drain mat is limited in terms of strength, it cannot be unnecessarily increased and a wide space for drain cannot be secured in the formwork. Therefore, even if a large amount of water leaks through the gap created by cracking of concrete, the water cannot be drained smoothly and reliably, and there is a problem of poor drainage.

Further, in this prior art, the air caps are formed in a zigzag shape on the drain mat, and the strength of the drain mat is low and the rigidity of each air cap is also low.
For example, there is a problem that the air cap is easily damaged by an impact at the time of pouring concrete and an opening is easily generated, and water to be drained leaks from the opening, resulting in deterioration of waterproofness. Moreover, since the water droplets flowing out through the water-permeable nonwoven fabric are dropped onto the plurality of zigzag-shaped air caps, the air caps obstruct the flow of water and the drainage performance is deteriorated.

[0007] Therefore, an object of the present invention is to provide a drive-in mold which has high rigidity and can improve waterproofness and drainage, and a wall waterproofing method using the same.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a plurality of vertically extending ridges are formed upright on a plate body at intervals in the lateral direction, and the ridges between the ridges are formed at the ends of the ridges. The driven formwork is characterized in that a water-permeable buffer layer covering the space 1 is provided. Further, the present invention is characterized in that a second space extending vertically is formed in the plate body. Further, according to the present invention, the partition wall is formed with a projection that is open to the wall side and forms a first space that extends substantially vertically, and the partition wall and the substrate arranged on the side opposite to the wall with respect to the partition wall. A second space, which extends substantially vertically, is formed between the partition wall and the substrate by connecting with the connecting portion, and a water-permeable buffer layer that covers the first space is provided at an end portion of the protrusion. It is a characteristic driving form. Further, according to the present invention, a plurality of vertically extending projections are formed by standing upright on a plate body at intervals in the lateral direction, and the water-permeable buffer covering the first space between the projections at the ends of the projections. Placing concrete for forming a wall by using a formwork provided with layers, and forming a wall by the placed concrete and the formwork without removing the formwork It is a wall waterproofing method using a formwork. Furthermore, the present invention provides a projection that is open to the wall side and forms a first space that extends substantially vertically.
The partition is formed, and the partition and the substrate arranged on the side opposite to the wall with respect to the partition are connected by a connecting portion to form a second space that extends substantially vertically between the partition and the substrate. Then, concrete for forming a wall was placed using a formwork provided with a water-permeable buffer layer that covers the first space at the end of the projection, and was placed without removing the formwork. A method for waterproofing a wall using a castable formwork, characterized in that the wall is made up of concrete and the formwork.

[0009]

According to the present invention, a plurality of ridges are formed on the plate body so as to extend in the vertical direction at intervals in the lateral direction.
Is formed, and a waterproof cushioning layer is provided at the end of each ridge. With such a configuration, it is possible to realize a lightweight and highly rigid formwork, and it is possible to withstand a cast concrete with great strength. Further, the water flowing out through the water permeable buffer layer falls in the first space without damaging the flow and can be smoothly drained. As described above, according to the present invention, rigidity can be increased by integrating the form frame substrate and the space having a water guiding function, so to speak, to form a mold having a water guiding space, so that it is possible to cope with an increase in the amount of drainage. It is possible to secure the water transfer space freely.

According to the invention, a second space extending vertically is formed in the plate body. With such a second space, for example, water that has been damaged in the plate body and could not be drained in the first space can be reliably discharged by the second space, and the water permeability of the plate body can be improved. Water leakage is prevented in the area opposite to the buffer layer, and the waterproof property is improved.

Further, according to the invention, the protrusion formed on the partition wall forms a first space that is open to the wall side and extends substantially vertically, and this partition wall is opposite to the wall with respect to the partition wall. A second space extending substantially vertically is formed by the substrate connected to the side by the connecting portion, and a water permeable buffer layer is provided at an end of the protrusion. The water-permeable buffer layer covers the first space. With such a configuration, it is possible to realize a lightweight and highly rigid formwork, and it is possible to withstand a large amount of strength against an impact or the like when placing concrete. Further, the water flowing out through the water-permeable buffer layer first falls in the first space and is drained, and the water that cannot be drained by the first space falls in the second space. Drained. As described above, the formwork having the first and second spaces ensures reliable drainage even when a large amount of water leaks or damage to the partition walls, and a high degree of drainage can be achieved.

As described above, according to the present invention, the rigidity can be increased by integrating the mold base plate and the space having a water guiding function into a mold having a water guiding space.
It is possible to freely secure a water conveyance space to deal with the increase in the amount of drainage.

Further in accordance with the present invention, a wall can be constructed by pouring concrete using a form frame in which the above-mentioned plurality of vertically extending projections are formed in a plate body at intervals in the lateral direction. Since it is possible to construct a wall without removing the formwork, it is not necessary to separately construct a waterproofing work for draining the spring water of concrete and a formwork work for supporting the fluid concrete. Therefore, the workability can be significantly improved.

Further, according to the present invention, the first space which is open to the wall side and extends substantially vertically by the projections provided on the partition wall, and the substrate which is connected to the partition wall via the connecting portion are generally provided. Since concrete can be placed using a formwork in which a vertically extending second space is formed and a wall can be constructed without removing the formwork, the spring water of concrete must be drained surely. In addition, since the fluid concrete can be supported with great strength and the waterproofing work and the formwork work can be performed at the same time, the workability can be remarkably improved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a cutaway perspective view showing a state in which a drive-in mold according to an embodiment of the present invention is used as an outer underground wall.

The implantable mold 4 is composed of a water-conducting layer 3 which is a plate made of vinyl chloride and the like, and a buffer layer 2 which is adhered to the water-conducting layer 3 and which is made of a water-permeable material. The water-conducting layer 3 is arranged in the horizontal direction, which is the horizontal direction, at intervals, and faces the skeleton concrete 1 with the flange portion 3a1.
And a flat partition wall 3b connecting the support pieces 3a in the horizontal direction, and a partition wall 3b provided in parallel with each other at intervals. It has an inner wall 3c which is a flat substrate. The plurality of water guiding holes 3d extending vertically or vertically, which is generally the vertical direction, are provided in first and second spaces 3d1 and 3d2 described later.
Is formed including.

The partition wall 3b and the inner wall 3c correspond to each support piece 3
Ribs 3e that are a plurality of connecting portions provided corresponding to each a
Thus, the partition wall 3b is connected on the side opposite to the skeleton concrete 1. A plurality of first spaces 3d1 are formed between the support pieces 3a, the first spaces 3d1 are open to face the skeleton concrete 1 side and extend vertically or substantially vertically. In addition, between the partition wall 3b and the inner wall 3c and each rib 3
A plurality of second spaces 3d2 extending vertically or substantially vertically are formed between e. The outer wall, which is the wall,
The frame concrete 1 and the driving mold 4 are used. Further, the water guiding layer 3 is integrally formed as clearly shown in FIG.

FIG. 2 is a partial vertical cross-sectional view showing a construction example when a spring layer is provided underground. First, the spring layer and the bottom slab concrete 8 are constructed, then the drainage channel 6a is installed in the drainage channel installation box removing part 6b, and the driving form 4 is assembled.
The skeleton concrete 1 is poured between the earth retaining wall 5 and the driving formwork 4. After that, the supporting steel pipes used when assembling the driving mold 4 were removed, and holes for the separator and a space for injecting the waterproofing material in the lateral joint portion of the driving mold shown in FIG. 3 were removed. Injecting material 14a for stopping water is poured into 14, if necessary. The vertical joint portion of the implantable formwork prevents water leakage by forming the water leakage prevention notch 15 shown in FIG. 4 in the water guiding layer 3. Further, the separator 13a shown in FIG. 5 is formed with a separator cutting notch 13b so that it can be cut in the hollow portion of the water guiding layer 3, and after the pouring of the skeleton concrete 1 is completed and the concrete is solidified, the separator cutting notch is formed. 13b
Cut from the part.

FIG. 6 is a vertical cross-sectional view showing an example of construction in the case where a spring layer is not provided underground according to another embodiment of the present invention. First, a pressure-resistant concrete 12 is constructed, and then a hollow half block 10 which is a connecting portion between the spring water drainage panel 11 and the driving form 4 is installed, the driving form 4 is assembled, and the skeleton concrete is constructed. Pour 1 and bottom slab concrete 9. After the concrete is solidified, the supporting steel pipes used when assembling the implantable form 4 are removed. The countermeasures against water leakage at the joints in the horizontal and vertical directions of the implantable form 4 and the treatment of the separator in the present embodiment are the same as in the case where the spring layer is provided underground.

According to the present invention, by increasing the function of the formwork assembled by the construction of the skeleton wall, the block laying work which has conventionally required work by craftsmen and the waterproof mortar finishing of the double wall back canal are completed. The work can be omitted. Also, the work of dismantling and removing the formwork, which was necessary in normal work, can be greatly omitted by removing only the steel pipe flutter. In particular, under all circumstances, it is extremely difficult to construct reinforced concrete that will not cause defects such as water lines and cracks that will cause water leakage for many years, and when waterproofing is performed with a waterproof finishing material. However, maintaining performance over a long period of time is difficult. In such a situation where it is difficult to construct a perfect wall for "stopping water",
The double wall "guide the water" is a reliable and effective method.

As described above, according to the present invention, the rigidity can be increased by integrating the mold base plate and the space having a water guiding function into a mold having a water guiding space.
It is possible to freely secure a water conveyance space to deal with the increase in the amount of drainage. Moreover, the implantable formwork of the present invention can inherit the function of the double wall and achieve reliable waterproof performance.

[0022]

As described above, according to the present invention, since the first space is formed by the plurality of ridges provided on the plate body, the strength and rigidity are high, the drainage is good, and the certainty is high. It is possible to realize a lightweight and highly reliable waterproof formwork having a waterproof property by, for example, integral molding at low cost.

Further, according to the present invention, since the second space is formed in the plate body, the water which has not been drained by the first space and is drained can be reliably drained by the second space. Therefore, the waterproof property can be further improved.

Further, according to the present invention, the first space is formed by the protrusion provided on the partition wall, and the second space is formed by the substrate connected to the partition wall via the connecting portion. Integrating the formwork board and the space with water transfer function,
In other words, rigidity can be increased by using a mold with a water guiding space, so that it is possible to freely secure a water guiding space to cope with an increase in the amount of drainage. Moreover, since the first and second spaces can reliably and smoothly drain the water, the water that has not been drained by the first space can be reliably drained by the second space, which makes it waterproof. The property can be further improved.

According to the present invention, the above-mentioned plate body is formed by a mold formed with a plurality of ridges or a first space formed by a protrusion provided on a partition wall and a substrate connected to the partition wall. Using a formwork having a second space
Since concrete can be cast to form a wall, it is not necessary to separately perform waterproofing and formwork, and workability can be significantly improved.

[Brief description of drawings]

FIG. 1 is a cutaway perspective view showing a mutual relationship between a skeleton concrete and a driven-in form when the driven-in form according to one embodiment of the present invention is used for waterproofing of an underground outer wall.

FIG. 2 is a partial vertical cross-sectional view showing a construction state in which the drive-in form is used when there is an underground spring layer.

FIG. 3 is a horizontal cross-sectional view for explaining a configuration of a lateral joint portion of the drive-in mold.

FIG. 4 is a perspective view of a part for explaining a configuration of a vertical joint portion of the drive-in mold.

FIG. 5 is a horizontal cross-sectional view for explaining the configuration of the separator in the implantable mold.

FIG. 6 is a vertical cross-sectional view showing a construction state in which the driving-in form according to another embodiment of the present invention is used when there is no underground spring layer.

[Explanation of symbols]

 1 Concrete concrete 2 Buffer layer 3 Water transfer layer 3d Water transfer hole 3d1, 3d2 1st and 2nd space 4 Implantable formwork 5 Earth retaining wall 6a Drainage channel 6b Drainage channel box 7 Spring layer 8 Spring layer And bottom slab concrete 9 bottom slab concrete 15 water leakage prevention notch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideaki Iwatake, Inventor Hideaki Iwatake 1-5-43 Shitennoji, Tennoji-ku, Osaka City, Osaka Prefecture Muramoto Construction Co., Ltd. (72) Inventor, Ryoichi Takesako, Tennoji-ku, Osaka-shi, Osaka Tennoji 1-5-43 Muramoto Construction Co., Ltd. Osaka Head Office (56) Reference JP-A-4-70467 (JP, A)

Claims (4)

[Claims] 1. A water-permeable cushion that is formed by vertically projecting a plurality of ridges that are erected on a plate body at intervals in the lateral direction, and that covers the first space between the ridges at the ends of the ridges. Implantable formwork characterized by having layers. 2. The driving formwork according to claim 1, wherein a second space extending vertically is formed in the plate body. 3. A partition wall is formed with a protrusion that is open to the wall side and forms a first space that extends substantially vertically, and the partition wall and a substrate arranged on the side opposite to the wall wall with respect to the partition wall. A second space is formed between the partition wall and the substrate, the second space extending substantially up and down, and a water-permeable buffer layer that covers the first space is provided at an end of the protrusion. Characteristic driven formwork. 4. A concrete is cast using the formwork according to claim 1 or 3, and a wall is formed by the cast concrete and the formwork without removing the formwork. A waterproof method for walls using a driving formwork.