JPH0241623B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for forming foundation concrete for construction, and is particularly applicable to foundation concrete for houses and shops with steel and wooden structures. It is.

(Prior Art) The present invention relates to a method for forming foundation concrete for construction.

Conventionally, as this type of construction method, a construction method as shown in FIG. 2 has been commonly used to form foundation concrete for building a house as shown in FIG.

That is, Fig. 2 shows a cross section cut perpendicular to the longitudinal direction of the foundation concrete shown in Fig. 1 when it is formed, where 11 is the soil in the area where the foundation concrete is to be installed, and 12 is the groove drilled in that area. , 13 is a foundation concrete containing a moderate amount of gravel, and the ground 14
It is buried at an appropriate thickness to a slightly lower position.
Reference numeral 15 denotes a pair of left and right wooden frames, which are vertically placed on the surface of the foundation concrete 13 at a predetermined interval after it has dried and solidified.

16 is a wooden frame 15 to prevent the wooden frame 15 from falling down.
A support member 17 is interposed between the groove 14 and the wooden frame 15 to prevent the downward distance from expanding unnecessarily.
A holding member that maintains the upper interval at a predetermined dimension,
It is fitted onto the upper surface of the wooden frame 15 at a proper position in the longitudinal direction of the wooden frame 15 to connect and fix the two. After the preliminary (preparation) process described above, the foundation concrete 18 is poured from the upper opening of the wooden frame 15 to a desired height. Then, after a period of time has elapsed until the foundation concrete 18 has dried and solidified, the wooden frame 15, the support member 16, and the holding member 17 are each removed, and the spaces remaining between the groove 12, the foundation concrete 13, and the foundation concrete 18 are filled with soil. A foundation concrete for building a house as shown in Figure 1 is formed.

(Problem to be Solved by the Invention) However, according to the existing construction method, the foundation concrete 13 and the foundation concrete 18 are poured separately at a considerable time lag, and in particular, after the upper surface of the foundation concrete 13 has dried and solidified. Since the wooden frame 15 cannot be placed, the base concrete 1
8 is determined, and a boundary layer 19 is formed between the foundation concrete 13 and the foundation concrete 18.
intervening, which impedes the integration of the two concretes 13 and 18, and in extreme cases, if a large lateral load is applied to the foundation concrete 18, the positions of the two may shift, causing damage to the building structure above. There is also a risk of serious adverse effects.

Therefore, in the present invention, in order to eliminate the drawbacks of the above-mentioned conventional technology, the conventional foundation concrete and foundation concrete are formed at the same time,
The challenge is to integrate both.

[Structure of the invention]

(Means for solving the problem) The technical solution is to first lay a foundation material in a groove made in the ground, place a pair of left and right concrete blocks and rails on top of it, and place a pair of left and right concrete blocks and rails on top of it. A wooden frame is engaged with the lower recess of the mold support member and the upper recess thereof, and both wooden frames are held and connected at a predetermined interval by a holding member, and concrete milk is poured from the upper opening of the wooden frame. There is a particular thing.

(Function) The function is to integrally contain the foundation material and concrete block with concrete milk to form foundation concrete integrally without any intervening boundary layer or separation layer.

〔Effect of the invention〕

Based on a pair of left and right rails (shafts) placed in advance on a foundation material such as gravel via blocks,
Since the wooden frame is engaged and positioned on top of the H-shaped support member, the verticality of the wooden frame, the straightness in the longitudinal direction, and the parallelism between both wooden frames are reliably guaranteed. Since the concrete milk injection process only needs to be done once, it has the effect of shortening the construction period and reducing construction costs.Both the rails and supporting members can not only be used once, but can be removed after the concrete has solidified and used repeatedly. Preferably, by applying a mold release agent, release from the mold becomes even better, and the frequency of use increases.

In addition, in order to eliminate the separation and misalignment of foundation concrete and foundation concrete caused by conventional construction methods, a construction method in which the rails and supporting members of the present invention are omitted and the wooden frame is placed directly on the concrete block may be considered. However, it is necessary to correctly horizontally position each block and to adjust the lateral spacing between pieces of wood, especially at their lower ends, which poses difficulties in accuracy and man-hours.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
21 is the soil where the foundation concrete will be installed, 2
Reference numeral 2 denotes a groove drilled in that area, and 23 a base material such as crushed stone, crushed stone, or gravel, which is appropriately piled up or laid on the bottom surface of the groove 22 so that its upper surface is horizontal.
Reference numerals 24 and 25 denote a pair of left and right concrete blocks, which are placed on the foundation material at a predetermined distance apart in the lateral direction according to the width of the foundation concrete determined in a subsequent process, and at a distance of, for example, about 1 m in the longitudinal direction. Place it. 26 and 27 are the respective blocks 24 and 25
A square steel pipe is used as an example in this example, but other metals, resins, ceramics, etc. may be used instead of steel pipes. It may be solid. Reference numerals 28 and 29 are supporting members having an H-shaped cross section;
Although molded steel cut into appropriate lengths is used, molded products of aluminum alloy, resin, ceramic, etc. can also be used. The number of blocks 24 and 25 may be the same as those of the blocks 24 and 25 in the longitudinal direction, or may be provided as few or as many as necessary to support a wooden frame, which will be described later.

Furthermore, the lower L-shaped portions of wooden frames 30 and 31 to which baseboards are nailed are fitted into the upper grooves of the support members 28 and 29 from their upper openings so that the lower part of the wooden frames 30 and 31 are mostly plate-shaped and have an L-shaped bottom. and place it upright approximately horizontally and parallel to the left and right sides. Reference numeral 32 denotes a holding member which is fitted and connected between the upper edges of the left and right wooden frames 30 and 31 in order to hold the width of the internal space in the lateral direction, that is, the width of the foundation concrete. Place an appropriate number.

After the framework process is completed as described above, the wooden frame 3
Pour concrete milk through the upper openings at 0 and 31. The milk also flows into and encloses the gaps between the base materials 23 and is supplied until it reaches a predetermined height in the spaces within the wooden frames 30 and 31.

Furthermore, milk is poured separately from the outside into the space between the blocks 24 and 25 and the groove 22, and the base material 2 is poured into the space between the blocks 24 and 25 and the groove 22.
The inside and outside are connected by bonding with the milk that has flowed between the 3 holes, making it even stronger.

After the pouring process is completed, wait for the foundation concrete 33 to dry and solidify, first remove the holding member 32, then remove the wooden frames 30 and 31, and then remove the supporting member 2.
8 and 29, and rails 26 and 27, respectively. The concrete blocks 24 and 25 are left as they are, integrated with the foundation concrete 33, and served as a part of the foundation concrete 33.

The rails 26, 27 and the support members 28, 29 are
After drying and solidifying the concrete 33 and removing it as described above, it can be reused many times and is extremely economical.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing the conventional method, Fig. 2 is an external perspective view showing the entire foundation concrete formed by the method shown in Fig. 1, and Fig. 3 is a perspective view showing an embodiment of the method of the present invention. FIG. 4 is a cross-sectional end view taken along the line A--A in FIG. 3. 22... Groove, 23... Foundation material, 24, 25...
Concrete block, 26, 27...rail,
28, 29... Support member, 30, 31... Wooden frame,
32...Holding member, 33...Foundation concrete.

Claims (1)

[Claims] 1. At the bottom of a trench drilled in the ground, a foundation material such as stone, crushed stone, or gravel is laid so that the top surface is approximately horizontal, and on the top surface, the foundation material is placed on the left and right in the longitudinal direction of the trench at a predetermined interval in the lateral direction of the trench. A pair of appropriate number of concrete blocks are placed, then a rail of a considerable length is placed in the longitudinal direction of the groove on the top surface of each block, and a support member having an H-shaped cross section is placed on the top surface of each rail. The lower end of each wooden frame is engaged with the lower recessed part and the lower end of each wooden frame is engaged with the upper recessed part, and each wooden frame is connected with a holding member that maintains the interval between the left and right wooden frames at a constant dimension, and then the wooden frames are opened from the upper opening. A method for forming foundation concrete for construction, which includes injecting concrete milk to integrally contain concrete blocks and foundation materials to form foundation concrete.