JP2006228165A - Method for installing vending machine or the like on asphalt surface using anchor bolt and anchor bolt for use therein - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for installing a vending machine on an asphalt surface using anchor bolts. <P>SOLUTION: Holes are provided in predetermined portions of an asphalt surface. Then holes having a greater diameter than the holes provided in the asphalt surface are formed in earth below the holes. Wing type anchor bolts are inserted from the holes. With their wings open, the anchor bolts are fastened and temporarily fixed in place. Mortar is injected into gaps in the remaining parts of the holes to stabilize the anchor bolts. Thereafter, flat blocks (steel plates) are used thereon and leveling is fastened together to fix the vending machine in position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a construction method for installing an article to be used for a certain period of time such as a vending machine on an asphalt surface using an anchor bolt, and an anchor bolt used in this method.

  For example, a motor pool has been conventionally used to install an article such as a vending machine, which is heavy and installed for a certain period of time (hereinafter referred to as a vending machine). Vending machines are often installed on asphalt pavement surfaces.

  Anchor bolts were not used at all for the following reasons in installing vending machines on such asphalt pavement surfaces. Originally, anchor bolts are usually made by drilling holes in concrete with a thickness of 100 mm or more, inserting the holes into the holes, and opening them in a wedge shape to increase the pulling strength. However, unlike asphalt, asphalt is soft and pulling strength is not obtained even if anchor bolts are used. For these reasons, the use of anchor bolts on asphalt surfaces has not been practically performed.

  For this reason, the vending machine is installed on the asphalt pavement surface using this flat plate block, without using anchor bolts for installing the vending machine on the conventional asphalt pavement surface. It was something to do. For this reason, the installed vending machines are extremely unstable, and even if some extra stress is applied, they will move, the installation position will shift, and if it is severe, there is a high risk of an accident. Met.

  The present inventor has continued research on the installation of vending machines on asphalt pavement surfaces. In this research, the vending machines can be installed on asphalt pavement surfaces using anchor bolts. If possible, we came up with a completely new idea that it would be possible to install vending machines with extremely high strength, and developed a method for installing vending machines on asphalt pavement surfaces using anchor bolts. I continued my research.

  Therefore, the problem to be solved by the present invention is to develop a new means capable of realizing the above-mentioned new idea.

The problem is that a hole is formed in a predetermined surface of the asphalt, and then a hole larger than the hole provided in the asphalt surface is formed in the soil portion below, and a blade-type anchor bolt is inserted through the hole to open the blade. In this state, the anchor bolt is tightened and temporarily fixed, and the mortar is injected into the remaining space of the hole. After the mortar is cured, it is integrated with the blade-type anchor bolt, and the pulling load is integrated into the asphalt layer. it and will receive the lower surface (100φmm ²⁾ of, from pullout strength of a conventional wedge-type anchor bolts (front and rear 1000 kgf), high strength (approximately 2,000 kgf) is obtained. Then, after the anchor bolt is stabilized, the problem is solved by adopting a means for fixing the vending machine by fastening the leveling together using a flat block (iron plate) thereon.

  First, an outline of the construction method of the present invention is shown in FIG. In FIG. 1, (1) is a vending machine, (2) is an asphalt layer, (3) is a flat block, (4) is a blade-type anchor bolt, (5) is cement mortar, and (6) is for anchor bolt fastening Nut, (7) is the foot of the vending machine, and (8) is the soil.

  Since the asphalt surface is soft, anchor bolts cannot be used in the past. However, in the present invention, it can be constructed by the method shown in FIG. In addition, the thickness of asphalt pavement surfaces, such as a general site and a parking lot, is a thin thing about about 50-70 mm normally.

  First, a pilot hole (about 10 mm) is formed on the asphalt surface (2) with a vibration drill, the core position is stabilized, and then a hole of φ40 mm is drilled using a concrete core drill using a hammer drill. At this time, since the vibrating core drill is provided with a center drill, the center position is stabilized and the shake of the core portion is reduced.

  Next, a cylindrical hole for embedding the blade-type anchor bolt is dug. At this time, since the depth for embedding the blade-type anchor bolts needs to be at least 80 mm or more from the lower part of the asphalt pavement layer, a cylindrical hole is dug in the soil part below the asphalt layer. The size at this time may be, for example, a cylindrical hole having a depth of about 60 mm or more and a diameter of about 100 mmφ or more.

  In order to provide the above hole in the soil layer below this asphalt, first, as shown in FIG. Make it easy to dig. This drilling hole (9) is a tool newly developed by the present inventor, and is a new tool as shown in FIGS. This earth hole drill (9) will be further described later.

  After loosening the surroundings, the soil is dug with the drilling tool (10), the above-mentioned large cylindrical hole is dug, and then the soil remaining in the hole is removed by suction with a vacuum.

  Then, as shown in FIG. 4, the blade type special anchor (4) is inserted into the large cylindrical hole and the blade is opened, and then the anchor bolt is tightened with the temporary fastening jig (11) to be temporarily fixed.

More detailed description is as follows.
The anchor bolt (4) is inserted into the hole with the blade (12) closed, then the blade is opened, and the temporary fastening jig (11) is set in this state. (4) is tightened and temporarily fixed. This temporary fastening jig (11) is also newly developed by the inventor in carrying out this construction method, and will be described in detail later.

  Next, using the funnel for pouring (13), as shown in FIG. 4, the mortar is poured into the space of the cylindrical hole, the anchor bolt is fixed, and then the temporary fastening jig is removed. Next, as shown in FIG. 5, a vending machine is installed by placing a flat block or an iron plate (3) from above. Then, the leveling (14) is fastened and fixed together. After that, install the vending machine according to the conventional method.

  In addition, when a flat plate block is used, strength is further increased by pouring mortar into a gap between a flat plate hole and a bolt to stabilize the mortar.

  FIG. 3 shows a drill for drilling holes (9) newly developed by the present inventor, a blade-type special anchor bolt (4), and a temporary fastening jig (11) for temporarily fastening the bolt (4), respectively. This will be described in detail with reference to FIGS.

  First, the drilling hole (9) has a shape as shown in FIGS. 3A and 7B, has an overall length of about 80 mm, and has a cutting edge whose tip is bent substantially at right angles, and the length of the cutting edge. Is about 25 mm. When this drill (9) is used, as shown in FIG. 3B, an electric hammer drill is used to dig a hole. The material may be a hard metal and is usually made of steel.

  The blade-type special anchor bolt (4) was also developed for the first time by the present inventor and has a structure as shown in FIG. 4, for example. When inserted into the hole, the blade (12) is closed as shown in FIG. 4A, and the blade (12) is opened as shown in FIG. After the insertion, when the bolt (4) is pulled slightly upward, the blade (12) opens as shown in FIG. The material of this anchor bolt is also usually made of steel. This blade type special anchor bolt (4), as shown in FIG. 4 after insertion, has a large effect as an anchor bolt because the blade (12) opens upward, and its strength (installation strength) is The vending machine becomes large and can be firmly fixed to the asphalt surface with great strength.

  The temporary fastening jig (11) is also a newly developed jig of the present inventor, and is used for accurately fixing the anchor bolt at a predetermined position. The material is metal, and steel and other hard metals are used. This jig (11) is shown in FIGS. After temporarily fastening the anchor bolt using this, the mortar is poured from the space to fix the anchor bolt (4). At this time, the funnel is used to pour the mortar from the space of the temporary fastening jig. However, it is very convenient, and it is preferable to use this jig as a set in combination with the funnel (13).

  The drilling tool used in this construction method is shown in Fig. 7 just in case. In the figure, (i) is a core drill, (b) is a drill for drilling a hole, and (c) is a tool for drilling a hole.

  According to the construction method of the present invention, it is possible to install for the first time using anchor bolts on asphalt pavement surfaces that could not be installed with vending machines using anchor bolts at all. Become.

  And by using the blade-type anchor bolt developed for the first time according to the present invention, and also using a drill for drilling and a temporary fastening jig, it is extremely efficient and surely applied to the asphalt surface of a vending machine or the like using the anchor bolt. Installation is very simple and can be done without special skill. Of particular note is the fact that, as will be shown in the following examples, the installation strength is extremely high, and a stable installation can be made on the asphalt surface with no significant shock even with a considerable force.

  Hereinafter, the present invention will be described in detail with reference to examples.

  A vending machine (1) (1160 × 725 × 1830 mm, weight of about 390 kg) was installed on an asphalt surface having a thickness of about 60 mm by means as shown in FIG. That is, first, a drill hole (about 10 mm) is drilled on the asphalt surface (2) with a vibration drill as shown in FIGS. 2 to C, and a hammer drill is used to drill the core drill φ40 as shown in FIGS. I do. Next, as shown in FIGS. 3A and 3B, the soil is unraveled with the drill for excavation, and the excavation is continued with the drilling tool. And vacuum the soil left in the hole. Thus, a large cylindrical hole having a diameter of about 100 mm and a depth of about 100 mm is made.

  As shown in FIGS. 4A to 4B, a blade-type special anchor bolt (length 230 mm, blade length 66 mm, opening angle 73 ° C.) is inserted into the large hole with the blade closed. Then, as shown in FIGS. 4B to 4F, the anchor bolt is opened and fixed by a temporary fastening jig. Then, mortar is poured from the funnel and temporarily fixed, and then the temporary fastening jig is removed.

  Then, a flat plate block (300 × 300, thickness 60 mm) was placed thereon, a vending machine was installed as shown in FIG. 1, and leveling was fastened together.

  The pull-out strength from the asphalt surface of the blade-type anchor bolt was 2000 kgf or more, and the results of the tensile overturn test after the anchor bolt was applied were 600 kgf when fixed at 4 points and 600 kgf when fixed at 2 diagonal points.

  The test method is as shown in FIGS. 5A to 5B when fixed at 4 points, and as shown in FIGS. 6A to 6D when fixed at 2 points diagonally.

  FIG. 1 is an explanatory diagram of the construction method of the present invention.   FIG. 2 is an explanatory view showing the drilling work of the construction method of the present invention.   FIG. 3 is also an explanatory view showing the drilling work of the construction method of the present invention.   FIG. 4 is an explanatory view showing an operation of inserting a blade-type special anchor bolt and temporarily fastening it using a temporary fastening jig.   FIG. 5 is an explanatory view showing a method when measuring the installation strength according to the construction method of the present invention.   FIG. 5 is an explanatory view showing a method when measuring the installation strength according to the construction method of the present invention.   It is drawing which shows the tool for drilling work used by this invention construction method.

Explanation of symbols

1: Vending machine 2: Asphalt surface 3: Concrete flat block 4: Blade-type anchor bolt 5: Mortar 6: Nut 7: Vending machine foot 8: Earth part 9: Drill for drilling hole 10: Tool for drilling hole 11 : Temporary fastening jig 12: Blade 13: Funnel

Claims (6)

  A hole was formed at a predetermined location on the asphalt surface, and then a hole having a diameter larger than that of the hole provided on the asphalt surface was formed in the soil portion below, and a blade-type anchor bolt was inserted from the hole to open the blade. Once the anchor bolts are tightened and temporarily fixed, mortar is injected into the remaining space of the hole to stabilize the anchor bolts, and then leveling is performed using a flat block (iron plate) on the anchor bolts. Installation of vending machines, etc. on asphalt surfaces using anchor bolts, characterized by fastening vending machines, etc.   2. The installation method according to claim 1, wherein when the hole is provided on the asphalt surface, a pilot hole is formed on the asphalt surface with a vibration drill, and then a hole of φ40 mm is provided using a core drill for concrete using a hammer drill.   3. When drilling the hole in the soil part, loosen the hard soil part with a drill for drilling a soil, then digging the soil with a drilling tool, and sucking with a vacuum to remove the soil remaining in the hole. Installation method   In Claim 1, after inserting a blade | wing type | mold anchor bolt and opening a blade | wing, after tightening an anchor bolt with a temporary fastening jig and injecting mortar into the remainder of a hole using a funnel, temporary fastening treatment Installation method for removing tools   The blade-type anchor bolt used in the construction method according to claim 1   6. The blade-type anchor bolt according to claim 5, wherein the blade has a structure that does not open before being inserted into a hole provided on an asphalt surface but opens in a V shape after insertion.