JP2001059343A - Concrete placement method for forming slab, and support tool for guide rail used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel concrete placement method for forming a slab to manually and correctly finish the slab surface flatly, and a support tool for guide rail of a novel structure which is used therefor. SOLUTION: In this concrete placement method for forming a slab, guide rails 8, 8 are stretch between two points parallel to each other among four points to form one imaginary lattice section at the height corresponding to the thickness of the concrete to be placed, and horizontally adjusted, and then, a ready-mixed concrete 92 is placed, a leveling trowel 93 is allowed to slide while both ends of which are stretched over the guide rails, 8, 8 to level the ready-mixed concrete 92, the surface of the placed concrete is executed to a finished surface following a pair of guide rails 8, 8, similar operations are successively repeated for each of remaining imaginary lattice sections, and the guide rails 8, 8 are removed for each operation to form a concrete slab of the specified thickness horizontally continuous over a whole deck plate 9 which is a reference surface for concrete placement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction technique for reinforced concrete floors and terraces, and more particularly to a new concrete casting for forming a slab which can be finished to an accurate plane by hand. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and a guide rail support having a novel structure used for the method.

[0002]

2. Description of the Related Art It is essential for reinforced concrete slab construction to proceed promptly after the placement of ready-mixed concrete.
A detailed plan such as the casting procedure was made, and a careful discussion was made on the division of labor and the cooperative system of the concrete and plasterers, the work process and the number of personnel required for the work, etc.
When ready-mixed concrete is loaded and casting is started, a staff is set up on the concrete casting reference plane in advance, using a surveying instrument such as a level or theodolite to determine the height position of the cast concrete thickness at multiple locations. Put a water thread, and use this as a guide to level the concrete placing reference surface and supply and place the ready-mixed concrete in each imaginary grid-like section where work is possible, and immediately after that, use a brush or iron etc. After leveling the casting surface using a horizontal plane, set the sliding disk type level, apply an aluminum ruler to the fresh concrete casting surface, and if there is a gap under the ruler, add fresh concrete, Correct the surrounding fresh concrete by collecting, etc., finish it on a flat surface, extract the disk type level,
Further, the ready-mixed concrete is supplied to the next virtual grid-shaped section, and the same operation is repeatedly performed sequentially, and the same placing operation is repeated one after another over the entire slab floor surface, and thereafter, using a leveling iron. The floor surface is finished to a uniform surface, cured, and completed.

In the construction of such a slab, in particular, as the slab forming area becomes larger, a high degree of skill is required to finish the slab accurately in a planar shape, and the slab is formed in accordance with the work contents according to the process arranged in advance. Also, after completion, there are frequent irregularities scattered everywhere, and the dripping gradient as designed is not formed frequently, and these construction conditions are accurate immediately after casting. Since there is no easy way to check whether a slab finish has been obtained,
Only after the building was completed and actually occupied and used, it became apparent that irregularities and unnecessary slopes had occurred, leading to a situation where much repair cost and time had to be spent. Not only the contractor but also the owner suffers a large loss, so for slab construction that is too large for a skilled worker to handle, replace the manual work with an expensive leveling machine. Although it is necessary to rely on the work that has been introduced, the introduction of the equipment to the extremely complicated construction site where the foundation is not stable requires considerable consideration and experience in work management, Efficiency may be hindered, and above all, for small and medium-sized contractors with poor capital, it is not easy to introduce construction machines due to economic problems, and many of them are still many years old. Experience and intuition Because has followed the slab construction has become a status quo by relying on the manual.

[0004] In view of the above-mentioned current state of slab construction, the present invention makes it possible to finish a ready-mixed concrete casting surface to an accurate plane without relying on expensive mechanical devices and without requiring a skilled worker. Judging whether or not the slab construction technology to be able to do it is not feasible, we started developing and researching it quickly, repeating trial and error over a long period of time, many trial productions, and experiments. The present invention has succeeded in realizing a concrete placing method for forming and a guide rail support of a novel structure used for the method. Will be described in detail.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As clearly understood from the embodiments of the present invention shown in the drawings, the concrete casting method for forming a slab included in the present invention basically has the following structure. It is made up. That is, after dividing the concrete placing reference plane for slab formation into a virtual grid-shaped section,
At each height between the two parallel points among the four points forming one virtual grid-shaped section according to the concrete placing procedure, at a height position corresponding to the thickness of the concrete to be poured, a horizontal or predetermined water dripping gradient After adjusting the guide rail so that it becomes inclined, the concrete was poured between the pair of guide rails, and then both ends of the leveling iron were placed on the parallel guide rails. As it is, slide and move along the guide rails to level the ready-mixed concrete, and at least the cast concrete surface in the virtual grid section,
It is constructed on the finished surface according to the pair of guide rails, and the same work is repeated for each remaining virtual grid-like section, and by removing the guide rails, the entire concrete placement reference plane is The gist of the present invention is to form a concrete slab which is thick and continuous in a horizontal state or continuous in an inclined state with a predetermined dripping gradient.

[0006] The basic structure of the present invention is shown by another description expression, and the concrete casting method for forming a slab of the present invention is as follows. For guide rails that divide the concrete placement reference plane for slab formation into virtual grid sections and adjust the height to four points that form one virtual grid section according to the concrete placement procedure After arranging the supports, the guide rails are bridged between each pair of parallel guide rail supports among them, and at a height position according to the thickness of the cast concrete, a horizontal or predetermined dripping slope is provided. After adjusting the guide rail supports so that they become inclined, put concrete in between the guide rails, and then guide them while keeping both ends of the leveling iron on the parallel guide rails. By sliding along the rails to level the ready-mixed concrete, at least the cast concrete surface in the virtual grid section is applied to the finished surface according to the pair of guide rails, and sequentially By removing the guide rail and the guide rail support while repeating the same operation for each virtual grid-like section, the entire surface on the concrete placing reference plane is horizontally continuous with a predetermined thickness, or The concrete slab is formed so as to form a continuous concrete slab having a predetermined water dripping gradient.

[0007] Further, as a concrete configuration, the concrete placing method for forming a slab according to the present invention divides a concrete placing reference plane for forming a slab into a virtual grid-shaped section, and performs the concrete placing procedure. At four points forming a virtual grid-shaped section at a corresponding position, at a height position substantially corresponding to the cast concrete thickness, each is roughly adjusted so as to be substantially horizontal or substantially inclined at a predetermined dripping gradient. After arranging guide rail supports with a fine adjustment mechanism, hang the guide rails between each pair of parallel guide rail supports, and then adjust the height according to the concrete thickness. In the position
After adjusting using the fine adjustment mechanism of each guide rail support so that it is an accurate horizontal shape or a slope with a predetermined dripping gradient, place ready-mixed concrete between those guide rails, and , While sliding over the parallel guide rails, slide the concrete along the guide rails to level the ready-mixed concrete, and at least set the cast concrete surface in the virtual grid-like section to a pair of guide rails. By removing the guide rails and guide rail supports while repeating the same work for each virtual grid-like section that remains in sequence, and The gist has a configuration in which a concrete slab that is continuous at a predetermined thickness in a horizontal state or is continuously formed in an inclined shape with a predetermined dripping gradient is formed. It is possible.

In a more desirable configuration, the concrete casting method for forming a slab according to the present invention divides a concrete placing reference surface for forming a slab into a virtual grid-shaped section, and performs the concrete placing procedure. At four points forming a virtual grid-shaped section at a corresponding position, at a height position substantially corresponding to the cast concrete thickness, each is roughly adjusted so as to be substantially horizontal or substantially inclined at a predetermined dripping gradient. After arranging the guide rail support with the fine adjustment mechanism and staff staff support, hang the guide rail between each pair of parallel guide rail supports among them, At a precise height position, a staff is erected on the staff supporting part of each guide rail support so that it is exactly horizontal or inclined at a predetermined dripping slope, and it is measured with a level or a leveling instrument. Measure After adjusting using the fine adjustment mechanism, put ready-mixed concrete between the guide rails and slide along the guide rails while keeping both ends of the leveling iron on the parallel guide rails. The concrete is moved to level the ready-mixed concrete, and at least the cast concrete surface in the one virtual lattice section is applied to the finished surface according to the pair of guide rails, and the same is performed for each remaining virtual lattice section. By repeating the work and removing the guide rail and the support for the guide rail, it can be continuous horizontally or with a predetermined thickness over the entire concrete casting reference plane, or can be continuously sloped with a predetermined dripping gradient. The configuration that forms a concrete slab to be formed can be shown as a gist.

The concrete placing reference surface is a reference surface of the concrete thickness to be poured, and is a deck plate for forming a slab, a mold bottom for placing fresh concrete, or the like, for example, a waffle slab, a joist slab, or the like. It is a reference surface for forming the lower surface of void slabs and the like, and naturally includes the case of the upper surface of the foundation of a building, the ground where granulated quarry is laid, or the ground for paving which has been subjected to cement stabilization. When using the support for the guide rail, the support for the guide rail should be a reference surface set to such a strength that it can be stably erected and arranged.

[0010] The virtual lattice section is a range surrounded by four points that support a pair of guide rail ends arranged in parallel, and is the width of a leveling iron used while being bridged between the guide rails. It is a section surrounded by a depth dimension determined by the length dimension of the guide rail set to a strength that does not greatly bend when receiving a load from a leveling iron with a width dimension smaller than the dimension, and The width should be set so that the leveling operation can be performed relatively easily, and by changing the length and arrangement of the guide rails, the partition shape and dimensions can be easily changed.

[0011]

[Related invention] In connection with the above-mentioned concrete casting method for forming a slab, the present invention also includes a guide rail support used for placing the concrete. It is as follows. That is, at each of the positions where the base plate outer peripheral edge is in a self-supporting equilibrium position, three or more height coarse adjustment legs that can be roughly adjusted and temporarily fixed are combined in a vertically penetrating manner with the base portion. On the other hand, an elevating feed screw portion rotatable about a vertical axis is erected at the position of the center of gravity of the base portion base plate, and the elevating feed screw portion is rotatably operated by the elevating feed screw portion. , And a movable piece formed by projecting and guiding the guide rail connecting portion substantially horizontally is screwed and combined to form a height fine adjustment column.

The base portion functions to stably support the fine adjustment support on the concrete casting reference surface and to perform the function of coarsely adjusting the height, and has three or more height coarse adjustment legs. Is temporarily fixed to the base plate in an appropriate position to be able to stand on its own, and a feed screw part for raising and lowering at the position of the center of gravity of the base plate,
Should be formed to stand with sufficient strength,
An upper end of a coarse height adjusting leg having an outer, telescopic, or folding structure that can be configured so that a coarse height adjusting leg is provided on the base plate in a vertically penetrating manner so that it can be moved up and down and temporarily fixed. It is also possible to arrange to fix the sides.

The base plate has a function of connecting and integrating the height-adjusting legs and the height-adjusting struts. Must be configured to support on the reference plane,
For example, it is desirable to form from a metal such as steel, aluminum, a zinc alloy, or a copper alloy, or a ceramic, or a hard synthetic resin material such as a glass fiber resin or a polycarbonate resin. It is desirable to set the weight to such an extent that it will not be lifted by concrete, and to each part where the coarse height adjustment leg and the fine height adjustment support are to be mounted, mounting holes penetrating in the thickness direction of the upper and lower plates are provided. It is possible to make a configuration in which each component is perforated and each component is mounted or screwed through each mounting hole in a penetrating manner.

The coarse height adjusting leg stably supports the base plate for supporting the fine height adjusting column, and also adjusts the height of the base plate from the concrete casting reference surface over a predetermined range. It has a function of adjusting, and should be configured so that the support height of the base plate is roughly adjusted and can be temporarily fixed at a desired height position. Consisting of a plurality of rods with perforated temporary fixing holes, each rod is mounted on the base plate in a penetrating manner so that it can move up and down, and upper and lower temporary fixing holes exposed from the base plate. Each of them is provided with a split pin, a taper pin, or the like, and is temporarily fixed, or a rod body having a male screw portion is screwed into a screw hole formed in the base plate so as to be vertically penetrated, and desired. At the height position, use a lock nut to temporarily fix It is also possible to.

The height fine adjustment column has a function of supporting the movable piece and the guide rail support rod provided on the movable piece in a vertically adjustable manner on the base portion. The structure should not extend below the base plate lowered by the coarse height adjustment. For example, a vertical feed screw portion is axially mounted on the base plate in an upright manner, and the vertical feed screw portion is provided. It is preferable that a moving piece that moves up and down by rotating is screwed on, but a cylinder that moves up and down by hydraulic or pneumatic pressure, a jack structure that has a horizontal axis, etc. is adopted. You can also. Also,
In addition to the height fine adjustment pillar, it is possible to have a structure covered with a soft sheet-like or bellows-like waterproof cover that prevents the infiltration of fresh concrete, and a hard cylindrical exterior part is provided,
It can also be configured to prevent damage from external forces.

The elevating feed screw portion has a function of moving the movable piece up and down with respect to the base plate in response to a rotation operation, and is provided at a position of the center of gravity of the base plate so as to be rotatable about a vertical axis. It must be formed so that it is strong enough not to be deformed by the rotation operation or the support of the guide rail, and the thread can be turned without any special temporary fixing structure. When the moving operation is stopped, it is preferable that the pitch is set so that the moving piece stops at the desired height position, but it is necessary to provide a temporary fixing structure for stopping the rotation about the vertical axis if necessary. Is also possible.

The movable piece integrally supports the guide rail support rod portion, and performs a function of moving up and down by receiving a turning operation of an elevation feed screw portion, and receives a load from the guide rail. Also strongly supports the guide rail support rod part,
Soft synthetic resin that must be configured to be screwed to the elevating feed screw with sufficient strength, and that if necessary, ready-mixed concrete or dust can be prevented from entering the upper and lower opening edges of the screw hole. It is also possible to provide a sealing structure including a cover, a brush, and the like, or to provide a locking nut on one or both of the upper and lower sides to temporarily fix the structure.

The guide rail support rod has a function of horizontally supporting the end of the guide rail, and must be structured to support the guide rail so that it does not accidentally fall off. It can be a rod mounted on a guide rail, a cylindrical shape having a horizontal hole into which the end of the guide rail is inserted, or a vice-shaped structure holding the end of the guide rail. In addition to the above, one or more can be provided, and a staff supporting portion for detachably mounting a staff including a survey pole or a general-purpose ruler can be provided.

The staff support section vertically attaches an indexing object such as a survey pole, a staff or a general-purpose ruler, whose height can be measured using a surveying instrument, to a moving piece or a guide rail supporting rod section. It is possible to mount a level sensor used for a laser level, and it should be configured such that these staffs and the like can be detachably mounted. Below,
The structure will be described in detail together with an embodiment representative of the present invention shown in the drawings.

[0020]

FIG. 2 is a perspective view of the guide rail support of FIG.
FIG. 3 is an exploded perspective view of the guide rail support, and FIG.
The case shown in the front view of the guide rail support portion of the present invention has a basic configuration in which a height fine adjustment column is provided on a base portion having three height coarse adjustment legs. 1 shows a representative embodiment of a guide rail support used in a concrete placing method for forming a slab included in the above.

The guide rail support 1 comprises a base 2 having three height adjusting legs 3, 3 and 3 and a height adjusting column 4 standing thereon. The base portion 2 has through-holes 22, 22, 22, 23, 22, 23, 22, 23, 22, 23, 22, 21, 22, 21, 22, 21, 22, 21, 22, 21, 21, 21, 22, 21, 21, 21, 21, 22, 21, 22, 21, 22, 21, 21, 21, 21, 21, 22, 21, 21, 21, 21, 21. Each of the rods 22 has a sharp lower end formed with a plurality of temporary fixing holes 31, 31,... , 3 are mounted to be able to move up and down freely,
Temporary fixing holes 31, 3 arranged vertically above and below the base plate 21
The base plate 21 is provided with R-pins 32, 32, respectively, and a cylindrical mounting hole having a stepped seat surface in the middle of the upper and lower thicknesses is formed at the center of gravity of the base plate 21. A stepped lower end of the elevating feed screw portion 41 is mounted in the mounting hole, and a synthetic resin lower seat plate 42 and a washer formed in a disk shape are sandwiched from below the base plate 21, and a shaft mounting bolt 43 is screwed in. The elevation feed screw portion 41 is rotatably erected.

The elevating feed screw 41 has a pair of guide rail support rods 5, 5 which are linearly arranged in the diameter direction.
An annular movable piece 44 protruding horizontally is screwed into the screw. Further, the movable piece 44 is formed in a cylindrical shape outside the elevating feed screw portion 41, and is joined to the upper surface of the base plate 21 at the lower end. The upper and lower plates 61 are formed of synthetic resin and have a thick disk shape. Each of the guide rail support rods 5, 5 is provided with a vertical movement range of the guide rail support rods 5, 5. The cylindrical exterior part 6 formed with the supporting rod moving long holes 62, 62 for securing the diameter is attached and fixed.

The guide rail supporting rods 5, 5 are rod-shaped connecting rods 5 which can be attached to the ends of the pipe-shaped guide rail 8.
The connecting pieces 51 and 51 are formed separately from the moving piece 44 and are detachably connected by using screws. On the side portions, column-shaped staff supports 52, 52 are formed so as to be vertically extended, respectively, and formed in a columnar shape so that a survey pole 82 or a staff can be erected in a vertical state. I have.

Further, at the upper end of the lifting screw 41,
As shown in a perspective view of a guide rail support provided with a height fine adjustment handle 45 for enabling forward and reverse rotation operations of the elevation feed screw portion 41, and further having a waterproof cover in FIG. Exterior part 6 and support rod parts 5 and 5 for guide rails
Alternatively, a waterproof cover 7 made of a soft synthetic resin may be attached.

[0025]

Embodiment 2 The case shown in the perspective view of the guide rail support formed in another structure of FIG. 5 is included in the guide rail support used in the concrete casting method for forming a slab of the present invention. This is a guide rail support 1 provided with four legs for coarse adjustment of height formed by engraving a male screw portion on the outer peripheral surface.

The guide rail support 1 has a sharpened lower end near each square of the square base plate 21.
.., Which are engraved with male threads 33, 33,... On the outer peripheral surface over substantially the entire length, are penetrated, and wing nuts 34, 34 are arranged from the upper end side. ,... Are screwed with lock nuts 35, 35,... From the lower end side. Nut part 81 provided on
One guide rail support rod portion 5 having a bolt portion 53 capable of screwing the same is projected.

[0027]

The guide rail support 1 of the present invention having the above-described structure is used in a concrete casting method for forming a slab as follows. When building a horizontal floor of a reinforced building, as shown in the perspective view of FIG. 7 with the guide rail support installed on the deck plate,
A flat concrete casting reference surface for forming a slab, which is an upper surface of a steel plate deck plate 9 assembled with crack preventing streaks 91, 91, ... at a predetermined height position located in the slab thickness, is leveled with a trowel 92. Is divided into a plurality of virtual lattice sections each having a width slightly smaller than the width dimension of the guide rail 8 and having a depth substantially equal to the length of the guide rail 8, from the depth side of the concrete placing area, or from the supply of ready-mixed concrete. The guide rail supports 1, 1,... Shown in FIG. 1 to FIG. 3 are respectively attached to the four points forming one virtual grid-like section at locations corresponding to the concrete placing procedure such as from the side far from the source. Arrange
Each of the coarse height adjusting legs 3, 3,... Is moved up and down and roughly adjusted to have substantially the same plane height, and each of the R pins 32, 32,. Insert into through-holes for rough height adjustment 22 and temporarily fix them.

Guide rail support rod portions 5, 5,... Of a pair of guide rail supports 1, 1 located at two parallel points.
A guide rail 8 composed of a pipe whose outer peripheral wall is formed in a straight line is connected between the two ends in a plug-like manner so as to support the two guide rails 8 and 8 in a substantially parallel manner. , The staff support portions 52 of the support rod portions 5, 5,...
Attach surveying poles 82, 82, ... to 52, ...
By using a surveying instrument such as a level, laser level, transit, or theodolite (not shown) installed at a predetermined position away from one virtual grid-shaped section as an upright state, the heights of the respective poles 82, 82,. The handle 45 for fine adjustment of each height is rotated.

The elevation feed screw 41, which has been operated by the height fine adjustment handle 45, moves the guide rail support rods 5, 5 integrated with the moving piece 44 up and down, thereby moving the two guide rails 8, 5 up and down. 8 are precisely fine-adjusted on the same plane as a virtual floor formed by casting concrete, and are arranged horizontally and parallel to each other.

After the height adjustment according to the thickness of the cast concrete has been completed in this way, as shown in the perspective view of the ready-cast concrete in FIG. As shown in the perspective view of the state in which the ready-mixed concrete 92 is cast and the ready-mixed concrete of FIG. 9 is finished using a trowel, the leveling trowel 93 is held between the two guide rails 8, 8. The concrete is slid along the guide rails 8 and 8 to average the ready-mixed concrete 92, and the cast concrete surface in the virtual grid section is applied to the finished surface according to the two guide rails 8 and 8. is there.

After the concrete placement in the virtual grid-like section is completed, the guide rail supports 1, 1,... And the guide rails 8, 8 arranged at four points are promptly removed, and the next The same installation is performed in the virtual grid section, and fresh concrete is poured, and a pair of parallel supported guide rails 8,
Using a leveling iron 93 spanned between the 8 and leveling, a smooth cast concrete surface is produced, and the gaps between the sequentially cast concrete surfaces are leveled and flattened by the iron 93 to form a horizontal surface. It is intended to gradually widen the concrete surface evenly. When forming a continuous slab of the cast concrete surface in an inclined state with a predetermined dripping slope, the height fine adjustment handles 45, 45,... Of the guide rail supports 1, 1,. Operate and support staff 5
By using a surveying instrument to measure the staffs 82, 82,... Supported by 2, 52,... Using a surveying instrument, the inclination angle is finely adjusted, and the guide rail support rods 5, 5,. Each of the guide rails 8, 8 can be adjusted to a desired inclination angle.

A pair of guide rail support rods 5 provided at the target positions on the outer peripheral side of the movable piece 44 so as to have the same horizontal axis shape.
5 is capable of supporting the guide rails 8 and 8 end portions on both sides, and when placing ready-mixed concrete one after another in the virtual grid-like section according to the concrete placing procedure, the installation and removal are repeated. Guide rail support 1,
The guide rail supports 1, 1,... Installed once can be used as they are for forming the slab of the adjacent virtual grid-shaped section.

As shown in FIG. 4, the guide rail support 1 provided with a waterproof cover 7 enclosing the height-adjusting column 4 allows the ready-mixed concrete 92 to adhere to the vertically moving feed screw portion 41, It is intended to prevent intrusion into the outer case 6. Further, the guide rail support 1 shown in FIG. 5 includes four coarse adjusting legs 3, 3,...
.. Can be freely moved up and down with respect to the base plate 21. After roughly adjusting the height, the wing nuts 34, 34,... And the lock nuts 35, 35,. If the guide rail 8 having the end portion composed of the nut portion 81 is screwed to the guide rail support rod portion 5 having the bolt portion 53, the guide rail 8 is prevented from being accidentally dropped. It will surely support you.

[0034]

As described above, according to the concrete placing method for forming a slab of the present invention, a concrete placing reference plane is divided into a virtual grid-like section which is individually partitioned between a pair of guide rails arranged in parallel. By sliding the leveling trowel in the form of a bridge along the guide rail, it is possible to flatten the cast concrete surface to the exact thickness and height. In the slab forming work, which was difficult to finish to an accurate plane unless it was a skilled worker, even an unskilled worker can accurately and quickly level the concrete surface and finish it smoothly. This eliminates the need for rework by preventing the occurrence of irregularities, greatly reducing the number of work steps, and greatly improving work efficiency. Feature in which is obtained.

Further, the guide rails are supported in a horizontal or inclined manner with a predetermined dripping slope by using a plurality of individually independent guide rail supports, so that the guide rails can be quickly installed, moved and removed. On top of being able to
It is also possible to freely set the separation width between the guide rails, and according to the width and shape of the concrete casting reference surface,
The effect that the size and the shape of the virtual lattice section can be freely changed can also be expected.

According to the guide rail support used in the concrete casting method for forming a slab according to the present invention, the guide rail has a height roughly adjusting leg and a fine height adjusting pillar, and has a concrete height. The height can be adjusted easily and accurately even when the casting reference surface has irregularities, and a survey pole or staff is set up on the staff support provided on the guide rail support rod. With this, accurate height adjustment can be realized using a surveying instrument such as a level or transit, so that the support accuracy of the guide rail can be significantly improved, and high-precision concrete casting can be performed by non-skilled workers. The surface can be easily formed.Furthermore, by covering the operating mechanism such as the column for fine adjustment of height with a waterproof cover, it is possible to reliably prevent the intrusion of fresh concrete and dust and the generation of rust. To, to facilitate maintenance, in which very practical advantage of being able to suppress the generation of unnecessary trouble.

In particular, the guide rail support 1 described in the embodiment has the height roughly adjusting legs 3, 3,.
Are adjusted up and down with respect to 1 and coarse adjustment of the approximate height is performed, and then the R pins 32, 32,.
, And temporarily fixed, and furthermore, the height fine adjustment handle 45 of the height fine adjustment column 4 is rotated to operate the guide rail support rods 5, 5 to raise and lower to finely adjust the height. The guide rail 8 can be accurately supported at a desired height position, and the staff 8 is attached to the staff supports 52, 52 as necessary.
By erection of 2,82, it is possible to provide an advantage that high-accuracy height adjustment using a surveying instrument can be realized.

Also, the coarse height adjusting legs 3, 3,..., Each having an external thread portion 33 engraved on the outer peripheral wall surface, are attached to the base plate 21 in a penetrating manner, and the wing nut 34 and the lock nut 35 are connected. By using the guide rails to temporarily fix them, relatively accurate coarse adjustment can be performed, and fine adjustment can be easily performed later.
By providing the bolt portion 53 to which the nut portion 81 provided at the end can be screwed, it is possible to prevent the guide rail 8 from accidentally falling off during the leveling operation of the ready-mixed concrete, Pouring work can be reliably performed.

As described above, the concrete placing method for forming a slab of the present invention and the guide rail support used for the same can achieve the intended purpose with a novel structure, and are expensive. It is possible to cast concrete accurately and quickly without having to introduce a simple construction machine, and even if it is not a skilled worker. In addition, the guide rail support with a simple structure is easy to manufacture and the unit price is low. It can be much more economical than the conventional method of placing concrete, and the work efficiency itself can be greatly increased. And is expected to be widely used and popularized in the building industry, which needs more and more rationalization in a difficult economic situation. It is virtual.

[Brief description of the drawings]

The drawings show a typical embodiment that embodies the technical idea of the concrete placing method for forming a slab of the present invention and the guide rail support used therein.

FIG. 1 is a perspective view showing the structure of a guide rail support.

FIG. 2 is a perspective view showing the guide rail support in an exploded state.

FIG. 3 is a front view showing the structure of a guide rail support.

FIG. 4 is a perspective view showing a guide rail support provided with a waterproof cover.

FIG. 5 is a perspective view showing another embodiment of the guide rail support.

FIG. 6 is a perspective view showing a state in which a guide rail is stretched between supports.

FIG. 7 is a perspective view showing an installation state of a guide rail.

FIG. 8 is a perspective view showing a state where ready-mixed concrete is supplied between the guide rails.

FIG. 9 is a perspective view showing a state in which a slab surface is leveled by a leveling iron.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rail support 2 Base part 21 Same base plate 22 Same height coarse adjustment through hole 3 Height rough adjustment leg 31 Same temporary fixing hole 32 Same R pin 33 Same male screw part 34 Same wing nut 35 Same Lock nut 4 Height support post 41 Fine lifting screw 42 Lower seat 43 Lower shaft bolt 44 Moving piece 45 Higher height adjustment handle 5 Guide rail support rod 51 Connection rod Part 52 Same staff support part 53 Same bolt part 6 Cylindrical exterior part 61 Same upper seating board 62 Same supporting rod moving long hole 7 Waterproof cover 8 Guide rail 81 Same nut part 82 Same staff 9 Deck plate 91 Same as crack prevention line 92 Mixing concrete 93

Claims (8)

[Claims] 1. A concrete placing reference plane for forming a slab is divided into virtual grid sections, and two parallel points among four points forming one virtual grid section corresponding to a concrete placing procedure. In each of the spaces between the guide rails, the guide rails are adjusted at a height corresponding to the thickness of the concrete to be cast, and are adjusted so as to be horizontal or inclined at a predetermined dripping slope. After the concrete has been cast, the flattening iron is leveled by sliding along both guide rails while sliding the ends of the leveling iron on the parallel guide rails to level the ready-mixed concrete. The cast concrete surface in the inside is constructed on the finished surface according to the pair of guide rails, and the guide rails are removed while repeating the same work for each of the remaining virtual lattice sections. A concrete slab for forming a slab continuously or horizontally with a predetermined thickness or continuously with an inclined shape with a predetermined water dripping gradient over the entire concrete casting reference surface. Casting method. 2. A concrete placing reference plane for forming a slab is divided into virtual lattice sections, and the height is freely adjustable at four points forming one virtual lattice section according to the concrete placing procedure. After arranging the support for the guide rail to be
The guide rails are bridged between each pair of parallel guide rail supports among them, and each guide is formed so as to be horizontal or inclined at a predetermined dripping gradient at a height position according to the thickness of the cast concrete. After adjusting the rail supports, cast concrete between those guide rails and leave the ends of the leveling iron on the parallel guide rails,
The concrete is slid along the guide rails to level the ready-mixed concrete, and at least the cast concrete surface in the virtual grid-like section is constructed on the finished surface according to the pair of guide rails, and the remaining virtual By removing the guide rail and the support for the guide rail while repeating the same work for each lattice-shaped section, whether the entire surface on the concrete placing reference plane is horizontally continuous with a predetermined thickness,
Alternatively, a concrete slab forming method for forming a slab is characterized by forming a concrete slab that is continuous in an inclined manner with a predetermined dripping gradient. 3. A concrete placing reference plane for forming a slab is divided into virtual grid sections, and a concrete grid section is formed at four points corresponding to the concrete placing procedure to form a virtual grid section. At approximately the corresponding height position, after arranging a guide rail support with a fine adjustment mechanism, each of which has been roughly adjusted so as to be substantially horizontal or substantially inclined at a predetermined dripping gradient,
After hanging the guide rails between each pair of parallel guide rail supports among them, at the exact height position according to the thickness of the concrete to be cast, correct horizontal or predetermined slope of water dripping slope After adjusting using the fine adjustment mechanism of the support for each guide rail so that it becomes a shape, put concrete between those guide rails, and bridge both ends of the leveling iron on the parallel guide rails While doing this, the ready-mixed concrete is slid along these guide rails to level the ready-mixed concrete, and at least the cast concrete surface in the virtual grid section is applied to the finished surface according to the pair of guide rails, By removing the guide rail and the guide rail support while repeating the same work for each of the remaining virtual lattice sections, the entire concrete placement reference plane has a predetermined thickness. Flat shape or a continuous, or concrete 設方 method for a slab formed, characterized in that so as to form a concrete slab that is continuous with sloped predetermined water dripping gradient. 4. A concrete placing reference surface for forming a slab is divided into virtual grid-like sections, and four points forming one virtual grid-like section corresponding to the concrete placing procedure are added to the concrete placing thickness. A guide rail support with a fine adjustment mechanism and a staff staff support part has been roughly adjusted so as to have a substantially horizontal shape or a substantially inclined shape with a predetermined dripping gradient at a height position substantially corresponding thereto, and those After hanging the guide rails between the pair of parallel guide rail supports in the middle, at the exact height position according to the thickness of the concrete to be cast, correct horizontal or slope with a predetermined dripping slope In order to achieve this, a staff is erected on the staff support section of each guide rail support, adjusted using a fine adjustment mechanism while measuring with a measuring instrument such as a level or a level gauge, and then the ready-mixed concrete is placed between the guide rails. After casting, leveling While keeping both ends of the trowel on the parallel guide rails, the raw concrete is slid along the guide rails to level the ready-mixed concrete. On the finished surface according to the guide rail of
By repeatedly removing the guide rail and the support for the guide rail while repeating the same work for each virtual grid-shaped section that remains in sequence, the entire concrete placement reference surface is horizontally continuous with a predetermined thickness, Alternatively, a concrete slab forming method for forming a slab is characterized by forming a concrete slab that is continuous in an inclined manner with a predetermined dripping gradient. 5. Three or more coarse height adjusting legs, which can be roughly adjusted and temporarily fixed, are vertically and penetrably combined at positions near the outer periphery of the base plate so as to be self-supporting. An elevating feed screw portion rotatable about a vertical axis is erected at the position of the center of gravity of the base portion base plate, and the elevating feed screw portion is provided with the elevating feed screw portion. 5. A height-adjusting support column portion, which is moved up and down following the rotation operation of the above, and a movable piece formed by projecting and forming a guide rail coupling portion substantially horizontally is screwed and combined to form a height fine adjustment column portion. A guide rail support used in the concrete casting method for forming a slab according to the above. 6. A three- or four-coarse height adjustment that allows a sharp lower end to be grounded at each of the positions near the outer peripheral edge of the base plate so as to be self-supporting and that can be coarsely adjusted and temporarily fixed. The upper and lower legs are combined in a vertically penetrating manner to form the base, and the handle for fine adjustment of height provided at the upper end at the center of gravity of the base base plate can be rotated around the vertical axis to enable normal and reverse rotation. The vertical feed screw section is erected, and the vertical feed screw section is moved up and down by the rotation operation of the vertical feed screw section, and a measuring staff is set up vertically in the middle. , A guide rod support rod with a removable staff support,
5. A guide used in the concrete placing method for forming a slab according to claim 1, wherein a movable piece which can be supported in a state of protruding substantially horizontally is screwed and combined to form a supporting column for fine adjustment of height. Rail support. 7. The guide rail according to claim 5, wherein the movable piece has a pair of guide rail support rods protruding at respective outer circumferential target positions having the same horizontal axis. Support. 8. A cylindrical outer casing which surrounds a feed screw portion for elevating and lowering a support portion for fine-adjustment of height, and has a long hole for supporting rod movement over a range of elevating and lowering movement of a supporting rod portion for a guide rail. Or a column for fine height adjustment directly, or after providing the cylindrical exterior part, and covering the outside with a soft sheet-like or bellows-like waterproof cover, for the guide rail. The guide rail support according to any one of claims 5 and 7, wherein the support rod has a waterproof structure capable of moving up and down.