JP2008115565A - Reinforcing bar fixing tool for slope frame and surface of slope reinforcing construction method by use of it and surface of slope reinforcing structural body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing bar fixing tool for a slope frame capable of reducing labor and cost required for forming the slope frame and to provide a surface of slope reinforcing construction method by use of it and a surface of slope reinforcing structural body. <P>SOLUTION: In this slope frame construction method by arranging reinforcing bars 3 on a surface of slope 1, arranging inspection and measurement frames 4 used as standards of width and height for spraying mortar or concrete along the reinforcing bars 3 at an adequate interval, and spraying mortar or concrete, a central part 10 of the reinforcing bar fixing tool T for the slope frame used to fix the reinforcing bars 3 and the inspection and measurement frames 4 is curved, and the reinforcing bar fixing tool T is provided with hook parts 8, 9 in both end parts, respectively. The reinforcing bars 3B, 3C are locked in each hook part 8, 9, respectively. The central part 10 is locked in the inspection and measurement frames 4 or the other reinforcing bar 3A being different from the reinforcing bars 3B, 3C locked in the inspection and measurement frames 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a reinforcing bar fixture for a frame, a slope reinforcing method and a slope reinforcing structure using the same.

  As conventional slope reinforcement methods, there are a simple spray method frame method as shown in Patent Documents 1 and 2 and a method method using a rectangular mold as shown in Patent Document 3, an example of which is shown in FIG. Show. In the frame method shown in this figure, a wire mesh 52 is first laid on the slope 51, and then a reinforcing bar 53 and an inspection frame 54 are placed on the wire mesh 52, and both wires 53 and 54 are annealed iron wires (not shown). Not). Then, mortar or concrete is sprayed using the measurement frame 54 placed and fixed on the metal mesh 52 in this manner as a guide, thereby forming a normal frame 55 having a cross section of a circle, for example, in a lattice shape. In FIG. 13, reference numeral 56 denotes a vegetation base material that is spray-filled into a section of the formed method frame 55.

  Such a frame method has advantages such as cost reduction, construction period shortening, and landscape maintenance.

Japanese Patent No. 2694330 Japanese Patent No. 2748260 Japanese Patent No. 3195774

  By the way, in the method frame construction method, in order to be able to evaluate the method frame 55 as a structure, it is necessary to fix the reinforcing bar 53 at a fixed position. For this purpose, the inspection frame 54 and the reinforcing bar 53 are fixed. However, the bundling work between the reinforcing bar 53 and the inspection frame 54 takes time, which causes a decrease in workability and a cost increase.

  Further, in the frame method using the measurement frame 54 shown in FIG. 13, when the leg 54a of the measurement frame 54 passes through the mesh of the wire mesh 53 and contacts the slope 51, the tip of the leg 54a is compared. Since the target is sharp, it is easy to sink into the slope 51. As a result, the holding position of the reinforcing bar 53 by the measurement frame 54 becomes lower than the fixed position, and the desired frame 55 is not formed. Therefore, in order to solve such a problem, a method of binding a spacer block (not shown) under the reinforcing bar 53 has been used, but this work has spurred the above cost increase. .

  SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its object is to provide a reinforcing bar fixing device for a frame that contributes to labor saving and cost reduction for forming a frame, a slope reinforcing method and a slope reinforcing structure using the same. To provide a body.

  In order to achieve the above object, a reinforcing bar fixture for a frame according to the present invention is provided with a reinforcing frame on a slope, and a measurement frame used as a guide for the spray width and spray height of mortar or concrete. Reinforcing bar fixture for the frame used for fixing the reinforcing bar and the measurement frame in the frame method for spraying mortar or concrete, arranged at appropriate intervals along the reinforcing bar, and the central part is curved The hooks are provided at both ends and the reinforcing bars are locked to the hooks, and the central part is locked to the measurement frame or the measurement frame. It is configured to be locked to another reinforcing bar different from the reinforcing bar (Claim 1).

  In the above-mentioned reinforcing bar fixing tool for a frame, it is desirable that one of the hook portions is longer than the other or has a larger curvature radius or bending angle.

  Furthermore, in the reinforcing bar fixing tool for the above-mentioned frame, it is desirable that the inspection frame is provided with a support rod for sandwiching the reinforcing bar with the hook portion.

  Moreover, in order to achieve the said objective, the slope reinforcement construction method which concerns on this invention is the reinforcement for a frame according to any one of Claims 1-3, and the reinforcement frame embedded in mortar or concrete, and a measurement frame. It fixes using a fixing tool (Claim 4).

  Further, in order to achieve the above object, the slope reinforcing method according to the present invention arranges reinforcing bars on the slope, arranges a measurement frame along the reinforcing bars, and arranges the reinforcing bars and the measurement frame. It is fixed using the reinforcing bar fixing tool for the frame according to any one of claims 1 to 3, and the frame is formed by spraying mortar or concrete so that the reinforcing bar and the measurement frame are buried. (Claim 5).

  In addition, in order to achieve the above object, the slope reinforcing method according to the present invention arranges reinforcing bars in a grid pattern on the slope, arranges a measurement frame along the reinforcing bars, and After fixing the measurement frame using the reinforcing bar fixing tool for the frame according to any one of claims 1 to 3, mortar or concrete is sprayed on the reinforcing bar and the measurement frame to form a grid-like frame. A vegetation base is formed in a lattice-like frame (Claim 6).

  In each of the slope reinforcement methods described above, it is desirable to lay a net-like body on the slope before installing the reinforcing bars and the measurement frame on the slope.

  Moreover, in order to achieve the said objective, the slope reinforcement structure which concerns on this invention is formed by the slope reinforcement construction method in any one of Claims 4-7 (Claim 8).

  In the inventions according to claims 1 to 8, a reinforcing bar fixing device for a frame that contributes to labor saving and cost reduction relating to the formation of a frame, and a slope reinforcing method and a slope reinforcing structure using the same are obtained.

  That is, in the invention according to claim 1, since the reinforcing bars and the measurement frames can be fixed almost by one touch, and the number of the installations is sufficient from one to two for one measurement frame. Compared with the troublesome binding work that has been performed, the workability is remarkably improved, and in particular, a reinforcing bar fixing tool that has excellent effects in terms of labor saving and cost reduction can be obtained.

  In the invention according to claim 2, in addition to the effects described above, a reinforcing bar fixture that can fix the reinforcing bar and the measurement frame by the hook part more smoothly by slightly different shapes of the two hook parts can be obtained.

  In the invention according to claim 3, in addition to the above-described effect, a reinforcing bar fixing device that achieves the effect of being able to hold the reinforcing bar favorably by holding it with the support rod is obtained.

  In the inventions according to claims 4 and 5, a slope reinforcement method having the same effects as those of the inventions according to claims 1 to 3 can be obtained, and in the invention according to claim 6, the slope having a greening effect by a vegetation base. Reinforcement method is obtained.

  In the slope reinforcing method according to the seventh aspect, the measurement frame can be suitably held by the mesh.

  In the slope reinforcing structure according to claim 8, the same effects as those of the invention according to claims 1 to 7 can be obtained in the forming step.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, FIG. 1 is an explanatory view schematically showing the configuration of a reinforcing bar fixture T for a frame according to an embodiment of the present invention, a slope reinforcing method using the same, and a slope reinforcing structure, FIG. 2 and FIG. 3 is an explanatory view and a perspective view schematically showing the configuration of the main part of the frame, and FIG. 4 is a front view schematically showing the configuration of the reinforcing bar fixture T. FIG.

  And below, the procedure of the said slope reinforcement construction method is demonstrated, including description of the said reinforcing bar fixing tool T and a slope reinforcement structure, referring FIGS. 1-4.

  (First Step) First, in the slope reinforcing method according to the present embodiment, an anchor pin (not shown) having a length of about 20 cm to 40 cm is used on a slope (construction target site) 1 prepared in advance. Then lay the mesh body 2. As the mesh 2, for example, a rhombus wire mesh (lass wire mesh) having a mesh of about 5 to 6 cm can be used.

  (Second Step) Subsequently, the lower rebar among the upper rebar 3A and the two lower rebars 3B and 3C, which are finally arranged in a two-stage manner as a pair of three on the mesh body 2, 3B and 3C are arrange | positioned on the mesh body 2 so that the one side may make a grid | lattice form of about 1-2 m, and it hooks on the mesh body 2 at this time, and the lower rebars 3B and 3C are substantially fixed. Here, as the upper rebar 3A and the lower rebars 3B and 3C, those having a substantially circular cross section and a diameter of about 9 to 13 mm can be used.

  (Third step) Thereafter, the measurement frame 4 is installed at the center of each side of the lattice formed on the mesh body 2 by the lattice arrangement of the lower rebars 3B and 3C. Here, the inspection frame 4 serves as a guide for the mortar and concrete spray width and spray height in the subsequent process. As shown in FIG. 3, the two arcuate members 5 and the two arcuate shapes are used. There are provided two connecting rods 6 for connecting the members 5 with each other at a predetermined height at predetermined intervals, and two support rods 7 provided over the two connecting rods 6. The arcuate member 5, the connecting rod 6 and the support rod 7 are made of a wire having an appropriate thickness (for example, 4 mm in diameter) subjected to rust prevention, and the upper rebar 3 </ b> A is locked to the top of the arcuate member 5. For this purpose, a V-shaped locking portion 5a is provided, and the bow-shaped member 5 is substantially M-shaped. On the other hand, in the support rod 7 positioned at the height between the lower end portion of the inspection frame 4 and the locking portion 5a, the holding portions 7a and 7a for abutting and holding the lower rebars 3B and 3C are recessed upward. It is provided in the state of entering.

  Note that the shape of the holding portion 5a is not limited to the V shape, but may be any shape as long as the upper rebar 3A can be locked, and may be a concave shape such as a U shape. 2 and 3 is provided with a holding portion 7b located between the holding portions 7a and 7a and having the same shape as the holding portion 7a. 7b is used when there is only one lower rebar, and is not used in this embodiment.

  The inspection frame 4 configured as described above is installed so that both legs 5b of each arcuate member 5 straddle the lower rebars 3B and 3C and along the lower rebars 3B and 3C. Thus, after arranging the measurement frame 4 at an appropriate interval, the mesh body 2 is floated and held on the measurement frame 4 using an appropriate spacer (not shown). That is, the net 2 is floated to a position slightly above the lower end of the leg 5b of the measurement frame 4 using the spacer, with the lower ends of both legs 5b of the measurement frame 4 inserted in the mesh. The wire is bound to the leg 5b of the measurement frame 4 by a wire or the like (not shown). Thereby, the mesh body 2 is suspended and held at a position of, for example, 3 to 4 cm from the slope 1, and the measurement frame 4 is prevented from falling down. In addition, as the spacer, for example, “Lash spacer for slope protection” of Design Registration No. 0886761 relating to the applicant of the present application or “Spacer Pin” of Japanese Utility Model Publication No. 5-42118 relating to the applicant of the present application may be used. it can. However, it is not always necessary to fix the measurement frame 4 to the mesh body 2 depending on the site, and the initial purpose can be achieved simply by being fixed to the reinforcing bars 3 (3A to 3C).

  (Fourth step) Next, the upper rebar 3A is fitted into the engaging portion 5a of the measurement frame 4 after installation from above, and the upper rebar 3A and the lower rebar 3B with respect to the measurement frame 4 using the reinforcing bar fixture T. , 3C is fixed. Here, as shown in FIG. 2 to FIG. 4, the reinforcing bar fixture T is made of a steel material having a substantially circular cross section, and has hook portions 8 and 9 at both ends, respectively, and the central portion 10 is curved, and is viewed from the front. The hook portions 8 and 9 and the central portion 10 having the hook portions 8 and 9 at both ends are located on the same plane. Further, in the reinforcing bar fixing tool T, the lower reinforcing bars 3B and 3C are locked to the hook portions 8 and 9, and the central portion 10 is substantially V-shaped or U-shaped provided in the measurement frame 4. It is comprised so that it may be latched by the upper rebar 3A different from the said lower rebar 3B, 3C latched by the latching | locking part 5a. Further, the one hook portion 8 is longer than the other hook portion 9.

  Then, the reinforcing bars 3A to 3C are fixed to the inspection frame 4 by the reinforcing bar fixing tool T configured as described above, as shown in FIGS. 2 and 3, first, the upper reinforcing bar 3A fitted in the locking portion 5a. The central part 10 of the reinforcing bar fixing tool T is locked to the hooks 8 and 9 of the reinforcing bar fixing tool T and the lower reinforcing bars 3B and 3C are lifted and locked. Accordingly, the upper rebar 3A is sandwiched between the locking portion 5a of the measurement frame 4 and the central portion 10 of the reinforcing bar fixture T, and the lower rebars 3B and 3C are respectively held by the holding portion 7a of the measurement frame 4 and the reinforcing bar fixture. It is sandwiched between the hook portions 8 and 9 of T and is fixed to the inspection frame 4.

  When the central portion 10 of the reinforcing bar fixture T is locked to the upper reinforcing bar 3A, the locking position is, for example, as shown in FIG. 3, a position that is substantially equidistant from the two support rods 7. However, the locking position is not particularly limited. Moreover, not only what uses one reinforcing bar fixture T for fixation of reinforcing bars 3A-3C with respect to one measurement frame 4, but two or more reinforcing bar fixtures T may be used.

  (Fifth step) Further, after the rebars 3A to 3C are installed, a slightly longer (for example, about 75 cm) anchor pin at a portion that becomes a frame crossing point of the lattice formed by the rebars 3A to 3C (intersection point of the rebars 3A to 3C) (Not shown) is placed on the slope 1 so as to protrude by an appropriate height (for example, about 16 cm), and reinforcing bars 3A to 3C are connected to the protruding portions with appropriate binding wires (not shown). Use to bind and fix. Thereby, upper rebar 3A and lower rebar 3B, 3C are held at the appropriate height (for example, 5 cm and 10 cm) from slope 1, respectively.

  (Sixth step) Subsequently, a curing sheet (not shown) is substantially fixed in each section of the lattice formed by the reinforcing bars 3A to 3C. Thereby, the scattering of the mortar or concrete sprayed in a post process (7th process) into the said division is prevented.

  (Seventh Step) Then, using the inspection frame 4 as a guideline, for example, a low slump mortar with a moisture content of about 7 to 8% is buried in a mortar gun machine so that the inspection frame 4 and the reinforcing bar 3 are buried. A grid-like frame 11 is formed by spraying with a civil engineering sprayer (not shown). At this time, the measurement frames 4 installed on each side of the lattice formed by the reinforcing bars 3A to 3C serve as a guide for the spray width and spray height of the mortar. It is possible to easily form the lattice method frame 11 made of mortar having a predetermined size with a predetermined covering thickness. That is, the size of the grid-like frame 11 is regulated by the reinforcing bars 3A to 3C and the inspection frame 4, and the reinforcing bars 3A to 3C according to the size of the grid-like frame 11 to be formed. The arrangement, shape, dimensions, etc. of the inspection frame 4 may be set as appropriate. Of course, what is sprayed to form the frame 11 is not limited to mortar but may be concrete.

  (Eighth step) After the spraying, the curing sheet is removed, and a revegetation plant (vegetation base material spraying, installation of vegetation mats and flying seed catching mats, embedded seeds in each section of the grid method frame 11) The creation of vegetation bases such as topsoil soil).

  Thus, the slope reinforcement method is completed, and the slope reinforcement structure is formed on the slope 1. Here, the slope reinforcement structure is a concept including not only the slope frame 11 but also the vegetation base provided in each section of the mesh body 2 and the slope frame 11. And the entire structure formed on the slope 1.

  In the slope reinforcing method having the above-described configuration, the fixing work between the reinforcing bars 3A to 3C and the inspection frame 4 in the fourth step is very simple using the reinforcing bar fixing tool T. Compared with the fixing work by binding of the reinforcing bars 3A to 3C and the measurement frame 4, which has been performed, the workability is remarkably improved, and particularly excellent effects in terms of labor saving and cost reduction are obtained.

  Further, since one of the hook portions 8 and 9 of the reinforcing bar fixture T is made longer than the other, the operation of locking the reinforcing bars 3B and 3C by the hook portions 8 and 9 becomes easier.

  Furthermore, since the reinforcing bar fixture T functions sufficiently with one or two installations with respect to one measurement frame 4, the workability can be greatly improved in this respect as compared with the binding with the conventional annealed iron wire. it can.

  The slope reinforcing method according to the present invention is not limited to the above embodiment, and can be implemented with various modifications. Therefore, the modified example will be described below.

  First, in the above embodiment, the upper reinforcing bar 3A and the lower reinforcing bars 3B and 3C are used, but the upper reinforcing bar 3A may be omitted. In this case, as shown in FIG. 5, the central portion 10 of the reinforcing bar fixture T may be locked to the locking portion 5a of the measurement frame 4, and the fixing method of the lower reinforcing bars 3B and 3C is the same as described above. Become. In this case, the shape of the locking portion 5a is not limited to the concave shape, and may be a protruding shape capable of locking the hook portion 9 or the like.

  Further, when the lower reinforcing bars 3B and 3C are locked to the hook portions 8 and 9 of the reinforcing bar fixture T in the fourth step, as shown in FIG. 6, the mesh 2 is hooked together with the lower reinforcing bars 3B and 3C. It may be locked to the parts 8 and 9. In this case, unintended slide movement of the inspection frame 4 and the reinforcing bar fixture T can be prevented, and the reinforcing bars 3A to 3C and the inspection frame 4 are more firmly fixed, which is preferable. Furthermore, by adopting this configuration, the reticulate body 2 is lifted, so that it is not necessary to use a spacer.

  Furthermore, the reinforcing bar fixing tool T is not limited to the hook portions 8 and 9 extending outward as shown in FIG. 4, but may be extended inward as shown in FIG. One of the hook portions 8 and 9 may extend outward and the other may extend inward. Further, the hook portions 8 and 9 of the reinforcing bar fixing tool T are not limited to the curved portions as shown in FIG. 4, and as shown in FIG. It may be bent. In addition, the central portion 10 of the reinforcing bar fixing tool T may have a loop shape as shown in FIG. Further, as shown in FIG. 10, one hook portion 8 of the reinforcing bar fixing tool T shown in FIG. 4 may not only be longer than the other hook portion 9 but also have a large radius of curvature. The hook portion 8 and the other hook portion 9 may have substantially the same length. Similarly, one hook portion 8 of the reinforcing bar fixture T shown in FIGS. 7 to 9 may have a larger radius of curvature or a bending angle than the other hook portion 9, and in this case, the hook portions 8, 9 May be substantially the same length. Here, in FIG. 10, the reinforcing bar fixture T shown in FIG. 4 is indicated by a two-dot chain line, and a portion overlapping with the reinforcing bar fixture T according to the modification shown in FIG. 10 is indicated by a solid line.

  Moreover, as shown in FIG. 11, the hook parts 8 and 9 and the center part 10 of the reinforcing bar fixing tool T may be substantially U-shaped and have a widened tip. And it cannot be overemphasized that the various hook parts 8 and 9 shown in FIG. 4, FIG. 7-FIG.

  4 and 7 to 11, the portion between the main body portion 10 and the hook portions 8 and 9 is linear, but the portion is linear. However, the present invention is not limited to this, and may be bent appropriately, for example, may be spiral.

  4 and 7 to 11 show the reinforcing bar fixture T in which all portions including the hook portions 8 and 9 and the main body portion 10 are substantially on the same plane, and have such a configuration. Thus, there is an advantage that a plurality of reinforcing bar fixtures T can be transported in a compactly stored state. However, the present invention is not limited to this configuration, and the hook portions 8 and 9 and the main body portion 10 extend in a three-dimensional manner such that the reinforcing bar fixing tool T has, for example, an appropriately twisted shape. Needless to say, it does not have to be above.

  Moreover, as shown in FIG. 12, a part (center part) of the connecting rod 6 of the inspection frame 4 may be recessed downward to provide a linear grounding portion 6a. In this case, since the ground contact portion 6a of the measurement frame 4 abuts on the upper surface of the mesh body 2 and the ground contact area increases, the sinking of the legs of the arcuate member 5 is eliminated, and the ground contact portion 6a is used as a fulcrum. Since the frame 4 bends left and right, it becomes easier to follow the unevenness of the natural mountain that forms the slope 1. Here, the grounding portion 6a is not limited to the connecting rod 6 and may be provided at a position avoiding the holding portion 7a of the supporting rod 7.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows schematically the structure of the reinforcing bar fixing tool for a frame concerning one embodiment of this invention, a slope reinforcement method using the same, and a slope reinforcement structure. It is explanatory drawing which shows schematically the structure of the principal part of the said legal frame. It is a perspective view which shows schematically the structure of the principal part of the said legal frame. It is a front view which shows the structure of the said reinforcing bar fixing tool roughly. It is explanatory drawing which shows roughly the structure of the modification of the said slope reinforcement method. It is explanatory drawing which shows roughly the structure of the other modification of the said slope reinforcement method. It is a front view which shows roughly the structure of the 1st modification of the said reinforcing bar fixing tool. It is a front view which shows roughly the structure of the 2nd modification of the said reinforcing bar fixing tool. It is a front view which shows roughly the structure of the 3rd modification of the said reinforcing bar fixing tool. It is a front view which shows roughly the structure of the 4th modification of the said reinforcing bar fixing tool. It is a front view which shows roughly the structure of the 5th modification of the said reinforcing bar fixing tool. It is a perspective view which shows roughly the structure of the modification of the measurement frame in the said embodiment. It is explanatory drawing which shows the structure of the conventional frame construction method roughly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slope 3A Reinforcing bar 3B Reinforcing bar 3C Reinforcing bar 4 Inspection frame 5a Locking part 8 Hook part 9 Hook part 10 Center part

Claims (8)

  A method of placing reinforced bars on the slope, and placing a measurement frame as a guide to the spray width and height of the mortar or concrete at appropriate intervals along the reinforcing bars, and spraying the mortar or concrete. A rebar fixing tool for a normal frame used for fixing the rebar and the inspection frame in a construction method, wherein the central part is curved and has hook parts at both ends, and the hooks are associated with the hook parts. The central portion is configured to be locked to the inspection frame or to be locked to another reinforcing bar different from the reinforcing bar locked to the inspection frame. Reinforcing bar fixing tool for the frame.   The reinforcing bar fixture for a frame according to claim 1, wherein one of the hook portions is longer than the other or has a larger radius of curvature or bending angle.   The reinforcing bar fixing tool for a normal frame according to claim 1 or 2, wherein the inspection frame includes a support rod for sandwiching a reinforcing bar with the hook portion.   A slope reinforcing method for fixing a reinforcing bar embedded in mortar or concrete and a measurement frame using the reinforcing bar fixture for a frame according to any one of claims 1 to 3.   A reinforcing bar is disposed on the slope, a measurement frame is arranged along the reinforcing bar, and the reinforcing bar fixture for a frame according to claim 1 is used as the reinforcing bar and the measurement frame. The slope reinforcing method is characterized in that the frame is formed by spraying mortar or concrete so that the reinforcing bar and the measurement frame are buried.   Reinforcing bars for a frame according to any one of claims 1 to 3, wherein reinforcing bars are arranged in a grid pattern on the slope, and a measurement frame is arranged along the reinforcing bars. Slope reinforcement characterized by forming a vegetation base in the grid-like frame after fixing it with a tool, spraying mortar or concrete on the reinforcing bars and the measurement frame to form a grid-like frame Construction method.   The slope reinforcing method according to any one of claims 4 to 6, wherein a net-like body is laid on the slope before the reinforcing bars and the measurement frame are placed on the slope.   A slope reinforcing structure formed by the slope reinforcing method according to claim 4.

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