JP3658060B2 - Inspection frame for on-site casting frame formation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a measurement frame for forming a field-placed frame used when, for example, a slope such as a road or a developed land is greened.
[0002]
[Prior art]
An example of the on-site casting method is “slope stabilization method” disclosed in Japanese Patent Publication No. 58-20338. In this method, after laying a mesh body such as a wire mesh on the slope, reinforced bars are laid on the mesh body, and mortar or concrete (hereinafter referred to as mortar) is sprayed on the grid reinforcement. Since it is designed to form a grid-like method frame made of, etc., it is superior in workability and strength compared to the conventional prefabricated method and on-site method frame method, etc. There is an advantage such as.
[Problems to be solved by the invention]
[0003]
By the way, in the current civil engineering standards, it is ensured that the thickness of a mortar or the like covering the grid reinforcing bars (which is called the covering thickness) is secured to a certain level or more from any surface of the reinforcing bars to obtain a grid method frame with a required strength. Is needed as a quality control standard. However, the on-site casting method is a on-site casting method that does not use a formwork, and the spraying of mortar and the like is performed as an on-site work in an unstable place on the slope, so that The spraying thickness and width of mortar, etc. are likely to be uneven, require considerable skill to form a grid-like frame with a predetermined size, and avoid variations in the size and strength of the grid-like frame I couldn't.
[0004]
For this reason, the present applicant, for example, in the registered utility model publication No. 3008215, in the field casting method using a formwork, a grid-like method frame made of mortar having dimensions and strengths as specified. Has proposed a measurement frame for forming a legal frame that can be easily formed without requiring skill. The inspection frame has a predetermined height and width provided at appropriate intervals in the length direction, and has a trapezoidal shape, an arc shape, a triangular shape, a polygonal shape, an M shape, and a concave polygon. A pair of first members having a shape and a second member that connects the first members to each other, and the reinforcing bar holding members are arranged in two upper and lower stages in a direction connecting the pair of legs at the intermediate portion in the height direction of the first member. Or it is installed horizontally in more stages.
[0005]
However, in the inspection frame as described above, since the length of the reinforcing bar is larger than the interval between the first members arranged in the length direction, it is troublesome to attach the reinforcing bar to the reinforcing bar holding part in the field. It was. In other words, in order to attach a reinforcing bar to the reinforcing bar holding part on the upper stage side, the long reinforcing bar must be inserted between the upper side of the first member 1 and the upper reinforcing bar holding member, which is troublesome. there were.
[0006]
In addition, when the slope of the slope to be constructed is steep, the shape of the frame may be collapsed due to the spraying material such as mortar leaning in the ground side direction.
[0007]
The present invention has been made in view of such circumstances, is easy to assemble on site, and can be used to easily form a grid-like method frame having dimensions and strengths according to standards without requiring skill. The purpose is to provide an inspection frame for legal frame formation.
[0008]
[Means for Solving the Problems]
In the present invention, means for solving the above-described problems are configured as follows.
That is, in the first aspect of the present invention, a grid is formed by laying a mesh on the slope and then arranging reinforcing bars in a grid on the mesh and spraying mortar or concrete on the grid. An inspection frame for forming an on-site method frame that does not use a form frame for regulating the shape dimension of the method frame, and has a downward opening shape having a predetermined height and width provided at appropriate intervals in the longitudinal direction. The first member having a pair of legs that are open at the top and the second member that connects the first members together, and the pair of legs in the width direction at the middle in the height direction of the first member It is characterized in that a reinforcing bar holding member for holding the reinforcing bar is provided in a direction of connecting the reinforcing bars.
[0009]
In the invention according to claim 2, a grid-like method frame formed by laying a mesh body on a slope, arranging reinforcing bars on the mesh body in a grid pattern, and spraying mortar or concrete on the grid reinforcement bar An inspection frame for on-site casting frame formation that does not use a mold for regulating the shape of the upper part, and has a downwardly open upper part with a predetermined height and width provided at appropriate intervals in the longitudinal direction. A first member having a pair of open legs and a second member that connects the first members to each other, and the reinforcing bar is held between the second members in a direction perpendicular to the second member. For this purpose, a reinforcing bar holding member is provided.
[0010]
The invention according to claim 3 is characterized in that the reinforcing bar holding member in the invention according to claim 1 is provided in one step between the pair of leg portions.
[0011]
The invention according to claim 4 is characterized in that the reinforcing bar holding member in the invention according to claim 2 is provided in one step between the second members facing in the width direction.
[0012]
The invention according to claim 5 is characterized in that the reinforcing bar holding member in the invention according to claim 1 is provided in two upper and lower stages between the pair of leg portions.
[0013]
The invention according to claim 6 is characterized in that the reinforcing bar holding member in the invention according to claim 2 is provided in two upper and lower stages between the second members facing in the width direction.
[0014]
The invention according to claim 7 is characterized in that a net-like body is stretched in the width direction between the pair of leg portions in the invention according to any one of claims 1 to 6.
[0015]
The invention according to claim 8 is characterized in that a net-like body is stretched in the longitudinal direction between the leg portions on the second member in the invention according to any one of claims 1 to 6. .
[0016]
When the first member is open at the top, a long reinforcing bar can be easily placed and secured on the reinforcing bar holding member from above, and when the reinforcing bar holding member is provided in two upper and lower stages. The lower rebar is placed in advance on a mesh body laid on the slope, and the rebar can be lifted and easily secured to the lower rebar holding member with a binding wire such as a wire. it can.
[0017]
On the other hand, dripping of the spray material can be effectively prevented even when construction is performed on steep slopes by the nets stretched in the longitudinal direction or the width direction between the leg portions.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an inspection frame for forming a spot casting frame that does not use a mold according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 to FIG. 3 show an embodiment of the inspection frame of the present invention and a frame method using the same. First, in FIG. 1, K is a measurement frame, and this measurement frame K is opposed to a pair of first members 1 having a predetermined height H (for example, 15 cm) and width W (for example, 30 cm). A pair of second members 2 that connect the legs 1B of the two first members 1 and a reinforcing bar holding member 3 that is provided between the second members 2 and 2 in a direction perpendicular to the second members 2 and 2. It consists of.
[0019]
The first member 1, the second member 2, and the reinforcing bar holding member 3 are made of, for example, a wire having an appropriate thickness (for example, 4 mm in diameter) subjected to rust prevention processing, and both leg portions 1 </ b> B constituting the first member 1, 1B is curved inward and is open downward, with the top open, with a gap d between the upper ends of both legs 1B, 1B, and the long reinforcing bar 8 can be easily placed on the reinforcing bar holding member 3 from above. The assembling workability of the reinforcing bar 8 is improved so that it can be placed.
[0020]
The lower end portion of the leg portion 1B is bent in a direction facing each other to form a sinking prevention portion 4. The length of the sinking prevention part 4 is, for example, about 3 cm. The leg 1B and the second member 2, and the second member 2 and the reinforcing bar holding member 3 are fixed by welding or soldering, respectively. The length L of the above-mentioned second member is shorter than the length of one side of the grid-like method frame F formed by the reinforcing bars 8 on the slope 5 (see FIG. 3), for example, about 30 to 40 cm. In addition, although illustration is abbreviate | omitted, you may provide the reinforcing bar holding member 3 so that it may pass between a pair of leg parts 1B and 1B. In FIG. 2, reference numeral 16 denotes a spacer for floatingly holding the mesh body 6 in order to obtain a required covering thickness.
[0021]
An example of an on-site casting method that does not use a so-called formwork, which is performed using such a measurement frame K, will be described. A mesh body 6 such as a rhombus wire mesh having a scale of about 5 to 6 cm, for example, is laid on the slope 5 prepared in advance, and anchors are driven into the slope 5 at an appropriate interval to fix the mesh 6 to the slope 5. (See FIG. 3).
[0022]
An inspection frame K is arranged on the mesh body 6 at a position that forms each side of a grid-like frame F having a side of about 1 to 2 m (see FIG. 3). Next, a reinforcing bar 8 having a diameter of 6 to 15 mm and a length of several meters is inserted from the gap d at the top of the measurement frame K and placed on the reinforcing bar holding member 3, and the reinforcing bar 8 is attached using an appropriate binding wire 10. The reinforcing bar holding member 3 is bound. Moreover, the location where the reinforcing bars 8 and 8 cross each other is similarly bound.
[0023]
The inspection frame K is a measure of the spraying width and spraying height of the mortar 11 that is the spraying material. Therefore, it is sufficient that at least one is provided on each side of the lattice method frame F. When the length of the side is 1 to 2 m and the length L of the measurement frame K is about 30 cm, it is only necessary to provide one measurement frame K for each side. Further, when the length of the side of the lattice method frame F becomes larger, two or more inspection frames K may be provided, and the length L of the inspection frame K is increased (for example, 1.3 to (About 1.5 m) may be set. Alternatively, the inspection frame K may be provided over the entire side.
[0024]
For example, a low slump mortar 11 having a moisture content of about 7 to 8% is sprayed on the grid-like reinforcing bar 8 configured as described above by a civil engineering sprayer (not shown) such as a mortar gun machine. In this case, since a measurement frame K serving as a measure of the spray width and spray height of the mortar 11 is provided on each side of the lattice frame formed by the reinforcing bars 8, mortar and the like are provided according to the measurement frame K. By simply spraying 11, a lattice method frame (hereinafter simply referred to as a lattice method frame) F having a predetermined size made of mortar or the like can be easily formed. That is, in this embodiment, the lattice-like method frame F having a lower end width of 30 to 35 cm and a height of about 10 to 15 cm can be formed, and the lattice-like method frame F having a predetermined size and a predetermined strength can be reliably formed. is there. In FIG. 2, reference numeral 13 denotes a nozzle for spraying mortar 11.
[0025]
As described above, the lattice-like frame F formed on the slope 5 is mixed with soil, organic material, water retention material (soil improvement material), etc. and seeds of turfgrass, wild grass, flowers, shrubs, etc. A vegetation layer 14 (see FIG. 1) is formed by spraying the vegetation material using a power sprayer or the like. Alternatively, a vegetation bag (not shown) filled with a coarse bag body with the vegetation material is used instead. It is possible to introduce vegetation to rock slopes that were previously impossible, and improve the landscape of slope 5, and the slope of vegetation by roots and stems. There is a significant contribution to permanent stability.
[0026]
The present invention is not limited to the above-described embodiment, and can be implemented with various modifications. Hereinafter, modifications will be described with reference to the drawings. In addition, in the following figures, the same thing as the code | symbol of FIG. 1 thru | or FIG. 3 shows the same thing.
[0027]
FIG. 4 shows an inspection frame K formed in a particularly long shape, and a plurality of first members 1,... Are provided between a pair of long second members 2. In such a measurement frame K, for example, the length of the reinforcing bar 8 is set to the same length as that of the reinforcing bar 8, and the reinforcing bar 8 is secured to the reinforcing bar holding members 3 in advance, so that the labor of construction at the site can be reduced. It can be omitted.
[0028]
FIG. 5 shows a concave portion 31 for fitting the reinforcing bar 8 in the central portion of the reinforcing bar holding member 3 to improve the assembling workability of the reinforcing bar 8 and to make the position holding property a glass. .
[0029]
6 and 7 are provided so that the upper and lower two-stage reinforcing bar holding members 3A, 3B are passed between the second members 2A, 2B and 2B, 2B facing each other in the width direction. The rebar 8 on the side is lifted from a mesh body (not shown) and secured to the reinforcing bar holding member 3B.
[0030]
FIGS. 8 to 10 are intended to facilitate manufacture by making both legs 1B and 1B constituting the first member 1 straight. In this case also, the reinforcing bar holding member 3 may be provided between the leg portions 1B and 1B.
[0031]
FIG. 11 shows a structure in which a mesh body M for preventing dripping of the spray material is provided so as to pass in the width direction between both leg portions 1B and 1B, and FIG. 12 shows that the mesh body M is inserted in the longitudinal direction between both leg portions 1B and 1B. In the case of FIG. 11, the longitudinal direction of the measurement frame K coincides with the inclination direction of the normal plane, and in the case of FIG. 12, the width direction of the measurement frame K is set to the inclination of the normal plane. Each may be arranged in accordance with the direction. Needless to say, such a net M for preventing drooling can be provided in other measurement frames K as appropriate.
[0032]
【The invention's effect】
As described above, according to the present invention, since the first member is open at the top, the long can easily place the reinforcing bar on the reinforcing bar holding member from above and can be secured with good workability. When the reinforcing bar holding member is provided in two upper and lower stages, the lower reinforcing bar is placed in advance on a mesh body laid on the slope, and the reinforcing bar is lifted to wire the lower reinforcing bar holding member. The cable can be easily secured with a binding wire such as the one, and the construction workability on site is remarkably improved.
[0033]
In addition, since the mesh body is stretched in the longitudinal direction or the width direction between the legs, even when constructing on the slope of a steep slope, dripping of the spray material can be effectively prevented by the mesh body, A frame with high shape accuracy can be formed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a measurement frame of the present invention.
FIG. 2 is a longitudinal sectional view of a method frame showing a state in which the spraying operation is performed.
FIG. 3 is a partially cutaway perspective view of a method frame constructed on the same slope.
FIG. 4 is a perspective view showing an example of a measurement frame formed in the same length.
FIG. 5 is a perspective view of an inspection frame in which a concave portion for fitting a reinforcing bar is formed in the reinforcing bar holding member.
FIG. 6 is a perspective view of an inspection frame in which the reinforcing bar holding members are provided in two upper and lower stages.
FIG. 7 is a front view of a measurement frame in which two reinforcing bars are arranged on the reinforcing bar holding members provided in the upper and lower two stages.
FIG. 8 is a perspective view of a measurement frame in which a first member is formed by the straight legs.
FIG. 9 is a front view of an inspection frame in which reinforcing bars in which a first member is formed by straight legs are provided in two upper and lower stages.
FIG. 10 is a front view of an inspection frame in which a first member is formed by the same leg portions and a plurality of reinforcing bars are provided in two upper and lower stages.
FIG. 11 is a perspective view of a measurement frame provided with a net-like body in the same width direction.
FIG. 12 is a perspective view of a measurement frame provided with a net-like body in the same longitudinal direction.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... 1st member, 1B ... Leg part, 2, 2A, 2B ... 2nd member, 3, 3A, 3B ... Rebar holding member, 5 ... Slope, 6, M ... Reticulated body, 8 ... Rebar, F ... Lattice Status frame.

Claims (8)

After laying a mesh body on the slope, rebars are placed on the mesh body in a grid pattern, and a mold for regulating the shape dimensions of the grid frame formed by spraying mortar or concrete on the grid reinforcement bars The first member having a pair of legs that are open at the bottom and have a predetermined height and width that are provided at appropriate intervals in the longitudinal direction, in a measurement frame for forming a spot casting frame that does not use a frame. And a second member for connecting the first members to each other, and a reinforcing bar for holding the reinforcing bar in a direction connecting the pair of leg portions in the width direction to the intermediate portion in the height direction of the first member. An inspection frame for on-site casting frame formation, characterized in that a holding member is provided. After laying a mesh body on the slope, rebars are placed on the mesh body in a grid pattern, and a mold for regulating the shape dimensions of the grid frame formed by spraying mortar or concrete on the grid reinforcement bars The first member having a pair of legs that are open at the bottom and have a predetermined height and width that are provided at appropriate intervals in the longitudinal direction, in a measurement frame for forming a spot casting frame that does not use a frame. And a second member for connecting the first members, and a reinforcing bar holding member for holding the reinforcing bar in a direction perpendicular to the second member is provided between the second members. Inspection frame for forming on-site casting frame.   The inspection frame for forming a spot casting frame according to claim 1, wherein the reinforcing bar holding member is provided in one stage between the pair of leg portions.   3. The inspection frame for forming a spot casting frame according to claim 2, wherein the reinforcing bar holding member is provided in one step between second members facing in the width direction.   The inspection frame for forming a spot casting frame according to claim 1, wherein the reinforcing bar holding member is provided in two upper and lower stages between the pair of leg portions.   The inspection frame for forming a spot casting frame according to claim 2, wherein the reinforcing bar holding member is provided in two upper and lower stages between the second members facing in the width direction.   The inspection frame for forming a spot casting frame according to any one of claims 1 to 6, wherein a net-like body is stretched in the width direction between the legs.   The inspection frame for forming a spot casting frame according to any one of claims 1 to 6, wherein a net-like body is stretched in a longitudinal direction between the legs.

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