JP2013087230A - Resin-based adhesive kneading construction machine, and construction method of resin-based adhesive using the same and method for driving embedding plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction machine which automatically performs measuring and mixing works of a material of a resin-based adhesive and injection work of the resulting mixture to a construction part and thereby drastically improves construction rate, and to provide various construction methods using the construction machine.SOLUTION: The construction machine M includes a main agent measuring pump 1, a curing agent measuring pump 2 and an agitation device 3. In the construction machine M, the agitation device 3 is continuously rotated; every time when kneading of previously mixed main agent and curing agent is completed in the agitation device 3, the main agent measuring pump 1 and the curing agent measuring pump 2 are driven to discharge next main agent and curing agent from the pumps 1, 2 and to charge them into the agitation device 3; and at the same time, the resin-based adhesive after completion of kneading is extruded and poured out from the agitation device 3 by the charge of the next main agent and curing agent.

Description

  The present invention relates to a resin-based adhesive kneading application machine used for metering, mixing, and injecting a resin-based adhesive used in various constructions, such as driving an embedded plug into a track slab, etc. The present invention relates to a method for applying a resin adhesive and a method for driving an embedded plug.

Currently, as one of the earthquake countermeasures for existing tracks such as the Shinkansen, when a railroad vehicle is removed from the rail due to an earthquake, the railroad vehicle wheels prevent the rail from falling or coming off the rail laying surface. Construction of a rail overturn prevention device is underway (see Patent Document 1 for a rail overturn prevention device).
The rail overturn prevention device is structured to be fixed to the track slab with bolts, and in order to lay this rail overturn prevention device on the track slab, it is necessary to embed an embedded plug in the track slab.

FIG. 10 shows an embedding plug and a driving method thereof. The embedded plug 90 is made of, for example, a polyamide resin, is formed in a cylindrical shape, and has an internal thread 901 into which an external thread 911 of a bolt 91 can be screwed. In the case of the embedded plug 90, a protrusion 902 is provided on the outer peripheral surface in order to improve the pulling resistance.
The method of driving the embedded plug 90 is performed according to the following work procedure.
(1) An embedding hole 92 for embedding the embedding plug 90 is formed in the track slab.
(2) The embedding hole 92 is cleaned.
(3) In order to embed and fix the embedded plug 90 in the embedded hole 92, an adhesive for filling the embedded hole 92 is prepared. In this case, resin concrete composed of three materials of a main agent, a hardener, and an aggregate is used as an adhesive, and these three materials are measured and mixed.
(4) A prescribed amount of the adhesive 93 of (3) is injected into the embedding hole 92.
(5) The embedded plug 90 is inserted into the embedded hole 92 using the jig 94 and fixed.
In this way, the embedded plug 90 is embedded in the track slab, and after the embedded plug 90 is driven, a rail overturn prevention device is laid on the track slab.

JP 2010-180652 A

However, in the above-described conventional method of implanting the embedded plug, work other than drilling the track slab is performed manually, so that the construction efficiency is poor, and the installation of the embedded plug is limited to a limited maintenance period at night. Therefore, it is required to improve the construction method and improve the construction efficiency.
In the case of this embedding plug driving method, in particular, we will consider the mechanization of each work of measuring, mixing, and injecting the adhesive into the embedding hole, which is a factor that determines the amount of overnight work. It is important that the resin concrete used for adhesives is mixed with aggregates for the purpose of developing the required strength, etc., and there is concern about wear of mechanical parts. It is difficult to mechanize each process of metering, mixing, and injection into the buried hole.
Therefore, it is possible to select a material that develops the required strength without using aggregate as the adhesive used to fix the embedding plug, mix the material appropriately, and inject the specified amount into the embedding hole. Development of a simple construction machine is required.
In this case, the adhesive material must have a certain fluidity during work in consideration of the unevenness and workability of the embedded plug as required performance, and the required plug for installing the fall prevention device. It is considered that it is preferable to select a resin-based adhesive composed of a main agent and a curing agent, which has a pulling strength and can be used under both normal temperature and low temperature environments. The point to be noted here is that some resin adhesives cannot be applied when the environmental temperature is 5 ° C or less due to the performance of the resin. By selecting an adhesive that can be used in normal and low temperature environments. is there.
And when developing construction machines, it is possible to improve the construction speed of embedded plugs by mechanizing each process of measuring, mixing, and injecting adhesive materials, which is currently performed manually. In particular, the mixing time of the resin-based material is usually 60 seconds to 120 seconds. If it is attempted to shorten this, the mixing state of the main agent and the curing agent is deteriorated, which affects the mechanical properties of the resin-based adhesive. Although it is said that there is a significant reduction in the mixing time, the construction speed of the embedded plug is currently 100 holes / 3 hours, this construction speed is twice the current speed (200 holes / 3 hours) or more Furthermore, it is desired that the normal temperature adhesive that can be used at normal temperature and the low temperature adhesive that can be used at low temperature can be used separately so that they can be used at both normal temperature and low temperature.

  The present invention solves such a conventional problem, and measures, mixes, and constructs a resin adhesive material used for driving such an embedded plug into a track slab and other various constructions. Each process of injection into the site can be automated by mechanization, and the construction speed can be greatly improved. Also, the resin adhesive for room temperature and the resin adhesive for low temperature can be used properly at normal temperature and low temperature It is an object of the present invention to provide a resin-based adhesive kneading application machine that can be used over time, a resin-based adhesive application method using the same, and an embedded plug driving method.

In order to achieve the above object, the resin-based adhesive kneading machine of the present invention is connected to a main agent container containing a main agent constituting the resin-based adhesive material, and vacuum suction of a specified amount of the main agent from the main agent container. Is connected to a main agent metering pump that discharges and discharges, and a curing agent container that contains a curing agent that is a material of the resin adhesive, and a specified amount of the curing agent is suctioned and measured from the curing agent container by vacuum suction, The curing agent metering pump to be discharged, and the main agent metering pump and the curing agent metering pump connected to the discharge side of the main agent metering pump and the curing agent metering pump. And a stirring device that pours a specified amount of the adhesive, and the stirring device has a structure in which the main agent and the curing agent previously injected and stirred are extruded by the main agent and the curing agent to be injected next. Each time the stirrer is continuously rotated and the mixing of the main agent and the hardener previously mixed in the stirrer is completed, the main agent metering pump and the hardener metering pump are driven to measure the main agent. The next main agent and curing agent are discharged and charged from the pump and the curing agent metering pump to the stirring device, and the resin adhesive after mixing is completed from the stirring device by charging the next main agent and curing agent. The gist is to extrude.
Further, in this construction machine, the main agent metering pump and the hardener metering pump are respectively a cylinder having a suction port and a discharge port, a piston that is reciprocally inserted into the cylinder, and a drive device that drives the piston. The cylinders and the pistons of the pumps have the same length and the same diameter or different diameters, and are formed so as to be able to suck and discharge a prescribed amount of the main agent and curing agent, and the pistons of the pumps have a common It is preferably operatively connected to the drive device and driven by the common drive device.
The stirrer has an injection port and a spout for the main agent and the curing agent, and includes a stirring chamber for mixing the main agent and the curing agent, a stirring blade rotatably disposed in the stirring chamber, and the stirring blade. The stirring chamber has a shape capable of extruding the main agent and the curing agent previously injected and agitated by the main agent and the curing agent to be injected next, and the agitating blade has a rotating shaft and It is preferable that the flat plate is formed in a substantially symmetric flat plate around the rotation axis, and the blades have asymmetric through holes in each flat plate. In this case, the through-hole is formed by arranging a plurality of holes on one flat plate in the axial direction of the rotation shaft, and a plurality of slits having the same or different length extending in the axial direction of the rotation shaft on the other flat plate. It is preferably formed in parallel in a direction orthogonal to the axial direction.
It is preferable to provide an injection tube connected to the resin-based adhesive dispensing side of the agitator and for feeding the adhesive to the construction site.
It is preferable to provide a cart for moving the main agent metering pump, the curing agent metering pump and the stirring device.

Further, in order to achieve the above object, the present invention includes an adhesive mixing step of mixing a resin-based adhesive material to be injected into holes, cracks, and other construction sites of a structure, and the resin system at the construction site. In the construction method of the resin-based adhesive having the adhesive injection step of injecting the adhesive, the above-mentioned construction machine is used for the kneading step, and the material of the resin-based adhesive required as one batch for each construction site The gist is to weigh a specified amount, stir and mix at a specified mass mixing ratio, and pour out a batch of resin adhesive after completion of mixing.
The present invention also includes an adhesive mixing step of mixing a resin-based adhesive material to be injected into a hole, crack or other construction site of a structure, and an adhesive injection for injecting the resin-based adhesive into the construction site. The above-mentioned construction machine is used for the kneading step and the adhesive injection step, and the prescribed amount of the resin-based adhesive material required as one batch for each construction site The gist is that the mixture is stirred and mixed at a specified mass mixing ratio, and one batch of the resin adhesive after completion of the mixing is injected into the construction site.

Furthermore, in order to achieve the above-described object, the present invention provides a drilling process for drilling an embedding hole for embedding an embedding plug, and an adhesive kneading that mixes a resin adhesive material filling the embedding hole. A method of placing an embedded plug, the method comprising: an adhesive injection step of injecting the resin adhesive into the embedded hole; and an embedded plug embedded installation step of inserting and fixing the embedded plug into the embedded hole In the kneading step, the above-mentioned construction machine is used, and a prescribed amount of the resin-based adhesive material necessary for one embedding hole is weighed, and stirred and mixed at a prescribed mass mixing ratio. The gist is that one batch of the resin adhesive after mixing is dispensed.
Further, the present invention provides a perforating step for perforating an embedding hole for embedding an embedding plug, an adhesive kneading step for kneading a resin-based adhesive material filling the embedding hole, and the embedding hole. An embedding plug placing method comprising an adhesive injecting step of injecting the resin-based adhesive and an embedding plug embedding step of inserting and fixing an embedding plug into the embedding hole. Using the above construction machine for the adhesive injection process, weigh the specified amount of resin-based adhesive material required for one batch for each embedding hole, stir and mix at the specified mass mixing ratio, and complete the mixing The gist is that a subsequent batch of resin adhesive is injected into the embedding hole.

According to the construction machine of the present invention, with the above-described configuration, a prescribed amount of the main agent is sucked and measured from the main agent container by vacuum suction, and a main agent metering pump for discharging and a prescribed amount of the hardener from the hardener container are sucked by vacuum suction. Stir and mix the curing agent metering pump to be weighed and discharged, the main agent metering pump and the curing agent metering pump, and the main agent and curing agent to be injected and charged at a specified mass mixing ratio, and dispense a specified amount of adhesive. Every time the mixing and mixing of the main agent and the hardener mixed in the stirrer is completed by mechanizing the metering and mixing of the resin adhesive material with the stirrer, and continuously rotating the stirrer, the main agent metering pump And the curing agent metering pump is driven, and the next main agent and curing agent are discharged from the main agent metering pump and the curing agent metering pump to the agitating device, and the next agitating agent and curing agent are charged from the agitating device. Since the resin-based adhesive after mixing is extruded and poured out, the weighing, mixing, and injection of the resin-based adhesive material into the construction site are automated by mechanization to greatly improve the construction speed. It is also possible to change the main agent metering pump, curing agent metering pump and stirring device to a common device by appropriately changing to a type suitable for a resin adhesive for normal temperature and a resin adhesive for low temperature. With the configuration, it is possible to use a resin adhesive for room temperature and a resin adhesive for low temperature, and can be used at both normal temperature and low temperature.
In addition, according to the construction method of resin adhesive using this construction machine, the weighing, mixing and injection work of the resin adhesive material into the construction site is automated by mechanization, and the construction speed is greatly improved. In addition, the construction machine has a special effect that it can be used at both normal temperature and low temperature by using a resin adhesive for room temperature and a resin adhesive for low temperature.
In addition, according to the embedded plug driving method using this construction machine, the metering, mixing and injection of resin-based adhesive materials into the embedding hole are automated by mechanization, greatly improving the construction speed. In addition, the construction machine has a special effect that it can be used at both normal temperature and low temperature by using a resin adhesive for room temperature and a resin adhesive for low temperature.

The top view which shows the construction machine in one embodiment of this invention Side view of the construction machine The main machine container, hardener container, and material mounting base of the construction machine as seen from one end side of the construction machine The main machine container, hardener container, and material mounting base of the construction machine as seen from one end side of the construction machine Front sectional view showing the construction of the construction machine, especially the stirring device Front view showing the configuration of the stirring blades of the stirring device of the construction machine in particular Diagram showing the operation of the construction machine The figure which shows the compressive strength history of the resin adhesive for normal temperature by the implantation stopper driving method using the construction equipment The figure which shows the compressive strength history of the resin adhesive for low temperature by the implantation stopper driving method using the construction equipment The figure which shows the generally known embedding stopper and its driving method

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
First, the construction machine will be described with reference to the drawings.
As shown in FIGS. 1 to 4, the construction machine M is connected to a main agent container T1 that contains a main agent that is a resin adhesive material, and sucks and measures a predetermined amount of the main agent from the main agent container T1 by vacuum suction. A curing agent that is connected to a main agent metering pump 1 to be discharged and a curing agent container T2 that contains a curing agent that is a material of the resin adhesive, sucks and measures a predetermined amount of the curing agent from the curing agent container T2 by vacuum suction, and discharges it. The main agent metering pump 2 is connected to the discharge side of the main agent metering pump 1 and the hardener metering pump 2, and the main agent and the hardener discharged from the main agent metering pump 1 and the hardener metering pump 2 are supplied at a specified mass mixing ratio. Stirring device 3 for stirring and mixing and dispensing a specified amount of adhesive, and injection for feeding the adhesive to the construction site, connected to the pouring destination of the resin adhesive after kneading of the stirring device 3 is completed And a tube 4.

The construction machine M is assembled by installing the main agent metering pump 1, the curing agent metering pump 2, the stirring device 3, and the injection pipe 4 on the mount 5. A material mounting base 6 for the adhesive material is also installed on the gantry 5, and a main agent container T 1 and a hardener container T 2 are attached to the material mounting base 6 as material containers, and these main agent containers T 1, The curing agent container T2 is connected to the main agent metering pump 1 and the curing agent metering pump 2, respectively. Note that a cover is placed on the gantry 5 so as to cover the main agent metering pump 1 and the hardener metering pump 2.
Further, although not shown, the construction machine M includes a carriage for placing and moving the main agent metering pump 1, the hardener metering pump 2, and the stirring device 3, and these main agent metering pump 1, hardener metering pump 2 are provided. In addition, the stirring device 3 can be moved together with the injection tube 4, the material mounting base 6, the main agent container T <b> 1, and the curing agent container T <b> 2 instead of the base 5 or with the base 5. In this case, for example, the cart is configured as a cart that can move on the construction site, and is configured as a trolley cart that can travel on a rail such as a track slab at the construction site of the embedded plug.

  In the case of this construction machine M, the main agent metering pump 1 drives a main agent cylinder 13 having a main agent suction port 11 and a discharge port 12, a piston 14 inserted into the main agent cylinder 13 so as to be reciprocally movable, and the piston 14. And drive device A. The hardener metering pump 2 includes a hardener cylinder 23 having a hardener suction port 21 and a discharge port 22, a piston 24 that is reciprocally inserted into the hardener cylinder 23, and a driving device A that drives the piston 24. It consists of. In this case, the cylinders 13 and 23 and the pistons 14 and 24 of the pumps 1 and 2 have the same length and the same or different diameters (in this case, the diameters are different). It can be inhaled and discharged. In this case, in both pumps 1 and 2, the suction ports 11 and 21 are provided near the center in the longitudinal direction of the circumferential surfaces of the cylinders 13 and 23, and the discharge ports 12 and 22 are provided at the tips of the cylinders 13 and 23. In addition, a common electric actuator is adopted as the driving device A for these pumps (hereinafter referred to as electric actuator A), and the pistons 14 and 24 of the pumps 1 and 2 are operatively connected to the common electric actuator A, The electric actuator A is driven to reciprocate.

The stirring device 3 has an injection port 31 for injecting the main agent, an injection port 32 for injecting the curing agent, and a spout 33 for pouring out the adhesive after mixing the main agent and the curing agent. , A stirring chamber 34 for mixing the main agent and the curing agent, a stirring blade 35 (see FIG. 5) rotatably disposed in the stirring chamber 34, and a drive device 36 for driving the stirring blade 35. In particular, the stirring device 3 has a structure in which the main agent and the curing agent previously injected and stirred are pushed out by the main agent and the curing agent to be injected next.
In this stirring device 3, as shown in FIG. 5, the stirring chamber 34 is formed in a substantially cylindrical shape having a predetermined capacity, and an injection port 31 for the main agent and an injection port 32 for the curing agent are provided at the upper part of the stirring chamber 34, respectively. The adhesive spout 33 protrudes in the center of the lower surface of the stirring chamber 34. In this case, the bottom surface of the stirring chamber 34 is a conical surface that is gradually inclined downward at a predetermined angle toward the center of the bottom surface. It is provided in a column shape. In this manner, the stirring chamber 34 as a whole is shaped so that the main agent and curing agent previously injected and agitated can be extruded by the main agent and curing agent to be injected next.
The agitating blade 35 is formed on a rotating shaft 351 and substantially symmetric flat plates 352 and 352 around the rotating shaft 351, and a blade 355 in which asymmetric through holes 353 and 354 are formed on the respective flat plates 352 and 352. Consists of. The stirring blade 35 is disposed in the stirring chamber 34 so as to be rotatable on the axis of the stirring chamber 34. The blades 355 are preferably formed in a shape in which each flat plate 352, 352 is substantially rectangular, or substantially rectangular, and a part (in this case, the upper part) of the corners is cut off obliquely or trapezoidal. Here, as shown in FIG. 6, the flat plates 352 and 352 are substantially rectangular. The through holes 353 and 354 are formed by arranging a plurality of (for example, three or four) circular holes in one plate 352 in the axial direction of the rotation shaft 351, and in the other plate 352 in the axial direction of the rotation shaft 351. A plurality of (for example, two) slits having the same or different extending lengths are preferably formed in parallel in a direction orthogonal to the axial direction of the rotating shaft 351. Here, as shown in FIG. 6, through holes 353 and 354 are formed on one flat plate 352 by linearly arranging three circular holes in the axial direction of the rotation shaft 351, and on the other flat plate 352. Two slits having different lengths extending in the axial direction of the rotating shaft 351 are formed in parallel in a direction orthogonal to the axial direction of the rotating shaft 351.
The drive device 36 is an electric drive device such as an electric motor. In this case, an electric motor such as an electric tool can be used.
The stirring chamber 34, the stirring blade 35 and the driving device 36 are used to stir and mix the main agent and the curing agent into the stirring device 3, and the main agent and the curing agent to be injected next with the main agent and the curing agent previously injected and stirred. The function of extruding is also configured.

As shown in FIGS. 1 and 2, the gantry 5 has an elongated, substantially rectangular planar shape, and the main agent metering pump 1 and the hardener metering pump 2 are arranged in the cylinders 13, 23 near the center of the gantry 5 in the longitudinal direction. Are installed in parallel with the width direction of the gantry 5 and with the suction ports 11 and 21 of the cylinders 13 and 23 facing upward. Two common electric actuators A are installed together with the operation switch, and the stirring device 3 is installed at the other end of the gantry 5. In this way, the electric actuator A common to the pumps 1 and 2 is operatively connected to the pistons 14 and 24 of the pumps 1 and 2. The pumps 1 and 2 have discharge ports 12 and 22 of the cylinders 13 and 23 connected to the manifold 7 via check valves, and the manifold 7 is connected to the main agent inlet 31 and the hardener on the stirring device 3. The injection port 32 is connected, and the cylinders 14 and 24 of the pumps 1 and 2 and the stirring device 3 are hermetically connected via the manifold 7.
As shown in FIGS. 3 and 4, the material mounting base 6 includes a base 61 having connection ports 611 and 612 that can be airtightly connected to the injection ports 11 and 21 of the pumps 1 and 2, and each of the bases 61. It consists of connection pipes 64 and 65 having connection ports 62 and 63 that extend upward from the connection ports 611 and 612 and that can be airtightly connected to the main agent container T1 and the curing agent container T2 (each outlet thereof) at the upper ends, A base 61 is installed across the main agent cylinder 13 and the hardener cylinder 23, and the connection ports 611 and 612 of the base 61 are connected to the injection ports 11 and 21 of the main agent cylinder 13 and the hardener cylinder 23. The material mount 6 is also provided with a support frame 66, and the support frame 66 is installed on the mount 5 in the vicinity of the base 61. In this way, the main agent container T1 is connected to the connection pipe 64 on the main agent cylinder 13 side of the material mounting base 6, and the hardener container T2 is connected to the connection pipe 65 on the hardener cylinder 23 side. In this case, as shown in FIG. 3, the main agent container T <b> 1 has a substantially cubic closed shape in which air does not enter inside, and a soft plastic bottle having a main agent outlet at the bottom, or as shown in FIG. 4. As shown in FIGS. 3 and 4, the hardener container T2 has an opening on the top surface and an outlet on the bottom, as shown in FIGS. A hard plastic tank is used. In the case of a plastic bottle, the spout is connected to the connection port 62 of the connection pipe 64 and supported on the support frame 66, and in the case of a poly tank, the spout is connected to the connection ports 62 and 63 of the connection pipes 64 and 65. 64, 65 directly supported. In this case, no check valve is provided between the main agent container T1 and the main agent cylinder 13 and between the hardener container T2 and the hardener cylinder 23. However, if necessary, depending on the viscosity of the material. A check valve may be interposed.

How to use the construction machine M will be described step by step together with the operation of the construction machine M. FIG. 7 shows the operation of the construction machine M.
(1) First, as described above, the spout of the main agent container T1 containing the main agent is connected to the connection port 62 of the connection pipe 64 on the main agent cylinder 13 side of the base 6, and the hardener container containing the hardener is contained. The spout of T2 is connected to the connection port 63 of the connection pipe 65 on the side of the hardener cylinder 23 of the base 6.
(2) Then, the power of the stirring device 3 is turned on, and the operation switch of the electric actuator A is appropriately operated from the state where the stirring blade 35 is continuously rotated inside the stirring chamber 34.
(3) By depressing the operation switch, the electric actuator A is activated, and the main agent metering pump 1 and the hardener metering pump 2 are simultaneously driven. That is, the pistons 14 and 24 of the main agent metering pump 1 and the curing agent metering pump 2 are simultaneously pressed, and the pistons 14 and 24 are advanced from the predetermined retracted position to the tip in the cylinders 13 and 23.
(4) When the pressing operation of the operation switch is stopped, the pistons 14 and 24 of the main agent metering pump 1 and the hardener metering pump 2 are pulled back in the cylinders 13 and 23 by the electric actuator A, and are moved back to a predetermined retracted position. Is done.
The movements of the pistons 14 and 24, that is, the one-stroke operation (one reciprocation operation) of the pistons 14 and 24 causes the insides of the main agent cylinder 13 and the hardener cylinder 23 to become negative pressure, respectively, and the main agent is discharged from the main agent container T1. Vacuum suction is performed through the suction port 11 of the main agent cylinder 13, and the curing agent is vacuum suctioned from the curing agent container T <b> 2 through the suction port 21 of the curing agent cylinder 23. In this case, the main agent cylinder 13 and the hardener cylinder 23 are made of cylinders having a predetermined predetermined diameter and different common diameters, and have a predetermined capacity. Driven by a predetermined distance, the main agent cylinder 13 and the hardener cylinder 23 are sucked and metered into the main agent cylinder 13 and the hardener cylinder 23, respectively.
The operation of the construction machine M so far is shown in FIGS. 7 (1) and (2).
(5) Then, by pressing the operation switch, the electric actuator A is operated and the pistons 14 and 24 are driven as shown in FIG. The main agent and the curing agent inside the curing agent cylinder 23 are pushed out from the discharge ports 12 and 22 of the cylinders 13 and 23, respectively, and are put into the stirring chamber 34 of the stirring device 3 through the manifold 7.
The stirring blade 35 rotates continuously inside the stirring chamber 34, and the main agent and the curing agent have a certain viscosity. Therefore, the main agent and the curing agent remain in the stirring chamber 34, and the stirring blade 35 Is mixed with stirring. In this case, the stirrer blade 35 of the stirrer 3 has a special structure (the shape of the blade 355 and the through holes 353 and 354) as described above. The main agent and curing agent are kneaded effectively in a short time.
(6) When the main agent and the curing agent in the cylinders 13 and 23 are pushed out by the pistons 14 and 24, the operation switch is stopped. By stopping the operation of the operation switch, the pistons 14 and 24 are retracted to their original positions as shown in FIG. 7 (4), and the main agent cylinder 13 and the hardener cylinder 23 are pulled by the pulling operation of the pistons 14 and 24. The inside of each of the chambers has a negative pressure, the main agent is vacuum-suctioned from the main agent container T1 through the suction port 11 of the main agent cylinder 13, and the curing agent is vacuum-sucked from the curing agent container T2 through the suction port 21 of the curing agent cylinder 23. A specified amount of the main agent and curing agent are inhaled and metered into each cylinder 13 and 23 of the main agent and curing agent.
(7) Then, every time the mixing of the main agent and the hardener previously charged in the stirrer 3 is completed, if the operation switch is pushed in the same manner, as shown in FIG. And the hardener metering pump 2 is driven in the same manner, and the next main agent and hardener are discharged from the main agent cylinder 13 and the hardener cylinder 23 to the stirrer 3, and at the same time, the next main agent and hardener are charged. As a result, the main agent and the hardener previously charged from the stirrer 3, that is, the resin adhesive after completion of the kneading are pushed out and flown into the injection tube 4. The next main agent and curing agent charged in the stirring device 3 are similarly stirred and mixed.
(8) Thereafter, the same operation is repeated by the same operation of the operation switch, and one batch of the resin-based adhesive after the completion of the kneading is pushed out from the stirring device 3 into the injection tube 4 to enter the injection tube 4. It stays for the length of the injection tube 4. After the resin-based adhesive reaches the tip of the injection pipe 4, the resin-based adhesive is poured out from the injection pipe 4 by one batch each time the next operation switch is operated.
Therefore, in the construction of the resin adhesive using the construction machine M, the main agent pump 1 and the hardener pump 2 are driven for each construction site, and the main agent cylinder 13 and the hardener cylinder 23 are used to remove the main agent and the hardener. This is a work procedure in which suction and weighing are performed, the mixture is introduced into the stirring chamber 34, the main agent and the curing agent are stirred and mixed in the stirring chamber 34, and the mixed resin adhesive is discharged from the stirring chamber 34 through the injection tube 4.

As described above, according to this construction machine M, a specified amount of the main agent is sucked and measured from the main agent container T1 by vacuum suction, and the specified amount of the hardener is vacuumed from the main agent metering pump 1 and the hardener container T2. Stir and mix the curing agent metering pump 2 that measures suction by suction and discharges, and the main agent metering pump 1 and these curing agent metering pumps 1 and the curing agent metering pump 2 that are discharged and put in at a specified mass mixing ratio. With the stirring device 3 for pouring out the adhesive, the metering and mixing of the resin-based adhesive material is mechanized, and the main agent and the hardener previously mixed in the stirring device 3 from the state where the stirring device 3 is continuously rotated. Each time mixing is completed, the main agent metering pump 1 and the hardener metering pump 2 are driven, and the main agent metering pump 1 and the hardener metering pump 2 discharge the next main agent and hardener to the agitator 3 and put them in. With this Since the resin adhesive after kneading is extruded and poured out from the stirring device 3 by adding the next main agent and curing agent, and injected into the construction site using the injection pipe 4 connected to the stirring device 3 It is possible to automate the weighing, mixing and injection work of the resin-based adhesive material by mechanization to greatly improve the construction speed.
Further, in the construction machine M, the diameters of the cylinders 13 and 23 and the pistons 14 and 24 constituting the main agent metering pump 1 and the hardener metering pump 2 are changed, or the rotational speed of the driving device 36 of the stirring device 3 is changed. By changing the main agent metering pump 1, the curing agent metering pump 2, and the stirring device 3 to a type suitable for the resin adhesive for room temperature and the resin adhesive for low temperature, the resin for room temperature is used. It can be used at both room temperature and low temperature by using different adhesives and resin adhesives for low temperatures.

Also in this construction machine M, the main agent metering pump 1 and the hardener metering pump 2 are inserted into cylinders 13 and 23 having suction ports 11 and 21 and discharge ports 12 and 22, respectively, and reciprocally inserted into the cylinders 13 and 23. Pistons 14 and 24, and electric actuators A that drive the pistons 14 and 24. The cylinders 13 and 23 of the pumps 1 and 2 and the pistons 14 and 24 have the same length and the same diameter or Unlike the above, it is configured so that a prescribed amount of main agent and curing agent can be sucked and discharged, and each piston 14 and 24 of each pump 12 is operatively connected to a common electric actuator A and is driven by this common electric actuator A. Therefore, the main agent metering pump 1 and the hardener metering pump 2 can easily and reliably meter the prescribed amounts of the main agent and the hardener. . In addition, the main agent metering pump 1 and the hardener metering pump 2 are composed of cylinders 13 and 23 and pistons 14 and 24, respectively, and are driven by a common electric actuator A. Can be manufactured at low cost.
The stirring device 3 includes main agent and curing agent inlets 31 and 32 and an adhesive spout 33, and a stirring chamber 34 for mixing the main agent and the curing agent, and rotatable in the stirring chamber 34. And a drive device 36 for driving the stirring blade 35. In particular, the stirring chamber 34 is formed in a substantially cylindrical shape having a predetermined capacity, and is injected with the main agent inlet 31 and the curing agent. An inlet 32 is provided at the top of the agitation chamber 34, and an adhesive outlet 33 is provided in the center of the bottom conical surface so as to protrude in a columnar shape. The stirrer blade 35 is formed into a shape that can be extruded by a main agent and a curing agent injected into the plate, and a stirring blade 35 is formed on a rotating shaft 351 and flat plates 352 and 352 that are substantially symmetrical about the rotating shaft 351. 352 includes blades 355 having asymmetrical through holes 353 and 354, and therefore, the main agent and the curing agent introduced into the rotary stirring chamber 34 can be effectively mixed in a short time by the stirring action of the stirring chamber 34. In addition, the structure of the stirrer 3 allows the stirrer 3 to be stirred only by adding the next main agent and hardener to the stirrer 3 every time mixing of the main agent and hardener previously mixed in the stirrer 3 is completed. The resin-based adhesive after completion of kneading can be reliably pushed out from the device 3.
Further, in this case, the through holes 353 and 354 of the stirring blade 35 are formed such that a plurality of holes are arranged in one plate 352 in the axial direction of the rotation shaft 351, and the other plate 352 extends in the axial direction of the rotation shaft 351. A plurality of slits having the same or different lengths are formed in parallel in a direction perpendicular to the axial direction of the rotating shaft 351, so that a stirring flow extremely effective for stirring the adhesive material is generated in the stirring chamber 34. The main agent and the curing agent can be kneaded efficiently in a short time.
In addition, since the stirring device 3 includes the stirring chamber 34, the stirring blade 35, and the electric drive device 36, the entire stirring device 3 can have a simple structure and can be manufactured at low cost.

  Further, the construction machine M includes a carriage for placing and moving the main agent metering pump 1, the curing agent metering pump 2 and the stirring device 3, and the main agent metering pump 1, the curing agent metering pump 2 and the stirring device 3 are Since the injection tube 4, the material mounting base 6, the main agent container T1, and the hardener container T2 are moved on the carriage instead of the base 5 or together with the base 5, the construction machine is used at various construction sites. Can be moved arbitrarily, and the operation of injecting the adhesive into each construction site can be performed easily and efficiently.

  In addition, in this construction machine M, the injection pipe 4 is provided in the stirring device 3, but the method of injecting the adhesive from the stirring device 3 to the construction site can be variously changed according to various constructions.

This construction machine M is extremely useful for the construction of a resin-based adhesive that injects a resin-based adhesive into holes, cracks and other construction sites of a concrete structure.
This type of construction generally has an adhesive mixing process for mixing the resin-based adhesive material to be injected into the construction site and an adhesive injection process for injecting the resin-based adhesive into the construction site. However, such construction can be performed using the construction machine M. That is, this construction machine M measures the prescribed amount of the resin-based adhesive material required as one batch for each construction site, stirs and mixes at the prescribed mass mixing ratio, and then completes the mixing for one batch. The resin adhesive is poured out. Then, the resin-based adhesive after completion of the kneading is injected into each construction site directly using the injection tube 4 or by another injection method.
By adopting such a construction method, the weighing, mixing and injection of the resin adhesive material into the construction site can be automated by mechanization, and the construction speed can be greatly improved. Since the resin adhesive for room temperature and the resin adhesive for low temperature can be used separately, it can be used at both normal temperature and low temperature.

Next, the construction machine M is applied to the above-described embedded plug driving method, and the embedded plug driving method using the construction machine M will be described.
Conventionally, in this method of implanting an embedding plug, as described above, a step of drilling an embedding hole for embedding the embedding plug, and an adhesive that kneads the resin adhesive material filling the embedding hole An agent mixing step, an adhesive injection step for injecting a resin-based adhesive into the embedding hole, and an embedding plug embedding installation step for inserting and fixing the embedding plug into the embedding hole. , Except for the perforation process, which is performed manually. In such a method for implanting the embedded plug, in particular, the construction machine M is subjected to the adhesive mixing process, or the adhesive mixing process and the adhesive injection process. Can be used. That is, the specified amount of the resin-based adhesive material required as one batch for each embedding hole by this construction machine M is weighed, mixed by stirring at a specified mass mixing ratio, and one batch after mixing is completed. The resin adhesive is poured out. Then, the resin-based adhesive after the completion of the kneading is injected into each embedding hole directly using the injection tube 4 or by another injection method.
By adopting such an embedded plug driving method, in particular, the weighing and mixing of the resin-based adhesive material, and the operation of injecting into the embedded hole can be automated by mechanization, and the construction speed can be greatly improved. In addition, since the construction machine M can be used separately with a resin adhesive for room temperature and a resin adhesive for low temperature, it can be used at both room temperature and low temperature.

この場合、撹拌チャンバーに接続される注入管は内径２０ｍｍ、長さ１．５ｍのビニールホースが採用される。このホースの接着剤の内容量は５４２ｇで、埋込栓の埋込孔に充填される接着剤の使用量が１４０ｃｃ×１．１５（密度）＝１６１ｇであるから、このホース内には５４２ｇ／１６１ｇ＝３．４回分の接着剤が入れられることになる。
また、この施工機械では、埋込栓の施工数量の増大を図るため、接着剤の材料の練混ぜ時間をできる限り短くする必要から、撹拌装置の撹拌能力が重要で、特に撹拌羽根の形状に着目した。既述のとおり、撹拌羽根は、回転軸と、この回転軸を中心に略左右対称の平板状に形成され、各平板に非対称の透孔を有する羽根とからなり、羽根の各平板は略長方形、又は略長方形で一部（この場合、上部）の角が斜めに切り落とされた形状、又は台形に形成されることが好ましく、透孔は、一方の平板に複数（例えば、３個又は４個）の円形の孔が回転軸の軸方向に並べて形成され、他方の平板に回転軸の軸方向に延びる長さが同じ又は異なる複数（例えば、２本）のスリットが回転軸の軸方向に対して直交する方向に並列に形成されることが好ましい。これら撹拌羽根の各種の形状について練混ぜ羽根としての適否を確認するため、これらの撹拌羽根を用いて、常温用の樹脂系接着剤（主剤及び硬化剤）を練混ぜ、１５×１５×４０ｍｍの試験体の圧縮強度試験を行ったところ、基準練混ぜの圧縮強度は６７．６Ｎ／ｍｍ２であり、いずれの形状の撹拌羽根によるものでも、この基本強度を超えることを確認した。ここでは、特に、図６に示したように、撹拌羽根の各平板を略長方形とし、透孔は一方の平板に３個の円形の孔を回転軸の軸方向に直線的に並べて形成し、他方の平板に回転軸の軸方向に延びる長さが異なる２本のスリットを回転軸の軸方向に対して直交する方向に並列に形成するものとした。この撹拌羽根を用いて、常温用の樹脂系接着剤（主剤及び硬化剤）の練混ぜ時間を８秒、１８秒、３０秒と変化させて、主剤及び硬化剤を練混ぜた場合の力学的特性を表２に示す。これによれば、練混ぜ時間が８秒であっても１８秒、３０秒であっても、常温用の樹脂系接着剤の力学特性は、略同様の挙動を示した。この撹拌羽根によれば、主剤及び硬化剤を８秒間の練混ぜ時間で十分に練混ぜることができる。

（３）施工機械の取り扱い方法
この埋込栓の打込み方法において、施工機械の取り扱い方は次のとおりである。なお、この施工機械の取り扱いは、常温用の樹脂系接着剤を使用する場合でも、低温用の樹脂系接着剤を使用する場合でも、同様である。
（ステップ１）
施工機械をトロリー台車に設置する。この場合、施工機械は水平に設置し、注入管は曲がらないようにする。主剤容器に規定量の主剤を入れ、硬化剤容器に規定量の硬化剤を入れる。
（ステップ２）
撹拌装置の駆動装置に電源を入れ、撹拌羽根を回転させる。撹拌装置は埋込栓の施工時間の常時３時間の連続運転である。
（ステップ３）
電動アクチュエーターの作動スイッチを押し、電動アクチュエーターを作動させる。この電動アクチュエーターの作動により、主剤ポンプ及び硬化剤ポンプの各ピストンが押され、主剤シリンダー及び硬化剤シリンダーの中に充填されていた主剤及び硬化剤が撹拌チャンバー内に投入される。なお、この場合、主剤ポンプ及び硬化剤ポンプの各ピストンは１１０ｍｍ程度移動され、この移動に要する時間は８秒程度である。また、撹拌チャンバーの容量は１８０ｃｃであり、ステップ３により撹拌チャンバーに投入された主剤及び硬化剤は１１００ｒｐｍで８秒間練混ぜられる。
（ステップ４）
電動アクチュエーターの作動スイッチを停止し、電動アクチュエーターの作動を停止する。これにより、主剤ポンプ及び硬化剤ポンプの各ピストンは反転して元の位置に戻され、その際に、主剤シリンダー内及び硬化剤シリンダー内が負圧になって、主剤容器の主剤及び硬化剤容器の硬化剤が各シリンダー内に吸入される。
（ステップ５）
ステップ１〜４の作業を繰り返すことにより、練混ぜられた接着剤が１．５ｍ程の注入管の先端まで充填される。ここで最初から４ストローク分の接着剤は練混ぜが不十分であることから、最初の４ストローク分の接着剤を廃棄する。なお、この４ストローク分の接着剤の廃棄については、次の（４）補足で詳しく説明する。
（ステップ６）
ステップ５で最初から４ストローク分の接着剤を廃棄した後、埋込栓の埋込孔に注入管を入れて、所定量、この場合、１４０ｃｃの接着剤を直接埋込孔に（この場合、埋込孔の上端部から６５ｍｍ下がった位置まで）打込む。
（４）補足
常温用の樹脂系接着剤、低温用の樹脂系接着剤の練混ぜを行う場合、１バッチ目の接着剤は撹拌チャンバーや注入管などに付着すること、撹拌チャンバーが空洞であることなどのため、主剤及び硬化剤の練混ぜが不十分になることが予想される。このため、常温用の樹脂系接着剤、低温用の樹脂系接着剤を連続５バッチまで練混ぜて、接着剤の力学特性の検討を行った。
常温用の樹脂系接着剤、低温用の樹脂系接着剤の連続５バッチの力学特性の一覧表を表３、表４に示し、常温用の樹脂系接着剤、低温用の樹脂系接着剤の圧縮強度履歴を図８、図９に示す。

これら力学特性の一覧表、圧縮強度履歴に注目すると、練混ぜバッチを重ねるにつれて、樹脂系接着剤の圧縮強度が増大していることが分かる。これは、撹拌装置が連続回転しており、そのため、１バッチ目は所定の練混ぜ時間であるが、２バッチ目以降は練混ぜ時間が多くなっているためであると考えられる。練混ぜバッチが４バッチ以降は安定的な力学特性となっている。
以上のことから、樹脂系接着剤の練混ぜ時間は８秒、図６に示す撹拌羽根により練混ぜを行うこと、練混ぜ初めから４バッチを廃棄することとし、５バッチ目以降を埋込栓の打込みに使用することにした。そして、撹拌装置は埋込栓の打込み作業時間、すなわち３時間連続して運転させることにした。
（５）施工機械の施工数量試験及び引抜き試験
本願出願人は、この施工機械を用いた埋込栓の打込み方法の効果を調査するため、埋込孔への充填材（接着剤）の打込み、埋込栓の打込みの施工数量試験、及び軌道スラブ版における引抜き試験を実施した。
［１．１］埋込孔への充填剤の打込み、埋込栓の打込みの施工数量
埋込孔への充填剤の打込み、埋込栓の打込みの施工試験に関する施工数量試験結果を表５に示す。このうち、充填材の打込みに１名、埋込栓の打込みに１名である。なお、移動はトロリー台車の移動であり、移動距離は約５ｍである。

以上により、充填剤の打込み及び埋込栓の設置の時間は２６秒／孔程度である。
［１．２］埋込栓の施工数量の推定
＜常温用の樹脂系接着剤の場合の埋込栓の打込みに関する施工数量の推定＞
充填材のうち常温用の樹脂系接着剤の場合の埋込栓の施工数量推定表を表６に示す。なお、この施工数量推定表は、以下（ａ〜ｃ）のような前提条件がある。
ａ．施工数量試験結果の埋込孔の清掃、すなわち、ワイヤブラシによる埋込孔の清掃、吸引掃除機による清掃、アセトンによる清掃の施工時間を基本としている。埋込孔の清掃に関する人員は２名である。
ｂ．施工数量試験結果の埋込孔への充填材の打込み、埋込栓の打込みの施工時間を基本としている。充填材の打込みの人員は１名、トロリー台車の運転に１名であり、埋込栓の打込みに１名である。
ｃ．実作業時間は、午前１時から午前４時までの３時間の作業時間のうち事前作業分の２０分、充填材の主剤及び硬化剤の交換時間５分を４回実施する２０分を除いた１４０分（３時間×６０分−２０分−２０分＝１４０分）とした。

以上のとおり、埋込栓の施工試験の結果から、常温用の樹脂系接着剤の場合の施工数量は、埋込孔の清掃が５６３孔／日であり、埋込栓の打込みが３１６孔／日である。
＜低温用の樹脂系接着剤の場合の埋込栓の打込みに関する施工数量の推定＞
充填材のうち低温用の樹脂系接着剤の場合の埋込栓の施工数量推定表を表７示す。なお、この施工数量推定表は、以下（ａ〜ｃ）のような前提条件がある。
ａ．施工数量試験結果の埋込孔の清掃、すなわち、ワイヤブラシによる埋込孔の清掃、吸引掃除機による清掃、アセトンによる清掃の施工時間を基本としている。しかし、低温環境下では、雨水により埋込孔が凍結している可能性が高い。その場合、埋込孔で凍結した雨水を融解させて埋込孔の水分を除去する必要がある。そのためには、比熱が高い水を用いて凍結した氷を融解させて除去することが考えられ、これについては増温水を製造する装置、増温水の回収装置、清掃機器などの開発が必要となる。以上のことから、施工数量試験結果の埋込孔の清掃施工時間の２倍を施工時間とした。埋込孔の清掃に関する人員は２名である。
ｂ．施工数量試験結果の埋込孔への充填材の打込み、埋込栓の打込みの施工時間を基本としている。充填材の打込みの人員は１名、トロリー台車の運転に１名であり、埋込栓の打込みに１名である。
ｃ．実作業時間は、午前１時から午前４時までの３時間の作業時間のうち事前作業分の２０分、充填材の主剤及び硬化剤の交換時間５分を４回実施する２０分を除いた１４０分（３時間×６０分−２０分−２０分＝１４０分）とした。

以上のとおり、埋込栓の施工試験の結果から、低温用の樹脂系接着剤の場合の施工数量は、埋込孔の清掃が３１６孔／日であり、埋込栓の打込みが２１９孔／日である。
［２］軌道スラブ版における引抜き試験結果
引抜き試験結果一覧表を表８に示す。ここで通常施工とは孔壁をアセトン処理した後に、材料を打込んだものであり、水中３ｈとは、孔に３時間以上水で浸漬させ、その後、通常施工と同様の施工を行ったものである。

以上により、低温用の樹脂系接着剤の打込み温度−１０℃−引抜き温度−１０℃における通常施工及び水中３ｈの引抜き耐力の平均はそれぞれ、１３９．３ｋＮ、１５１．６ｋＮであり、破壊形態はコーン破壊である。また、コンクリートや樹脂が融解した場合の引抜き挙動を調べるために、打込み温度−１０℃で施工して、引抜き温度は２０℃において引抜いた。その結果、水中３ｈの引抜き耐力の平均は、１５５．０ｋＮであり、上記の引抜き耐力と同様の結果が得られた。
常温用の樹脂系接着剤の打込み温度２０℃−引抜き温度２０℃における通常施工の引抜き耐力の平均は１６４．７ｋＮであり、破壊形態はコーン破壊である。 Next, a method for driving the embedded plug using the construction machine M will be described in detail based on the above-described problems relating to the conventional method for driving the embedded plug.
(1) Selection of adhesive material Adhesive, as described above, has a certain fluidity during work, taking into account the unevenness and workability of the embedded plug, as described above. Resin made of a two-component material (main agent and curing agent) that has the required pull-out strength as an embedded plug for installing the resin and that it can be used in both normal and low-temperature environments. Since it is preferable to select an adhesive based on epoxy, an epoxy resin adhesive for normal temperature use and an unsaturated polyester resin adhesive for low temperature use were selected. These resin adhesives have a viscosity of 10,000 mPa · s and have sufficient workability.
(2) Configuration of construction machine The basic configuration of the construction machine is the same whether a resin adhesive for room temperature or a resin adhesive for low temperature is used, as described above. However, epoxy resin adhesives used as resin adhesives for room temperature are unsaturated due to problems in material properties when the average working temperature is 5 ° C or higher, and as resin adhesives for low temperatures. Since polyester resin adhesives are used at an average working temperature of less than 5 ° C., the mass ratio of the epoxy resin adhesive main agent and the curing agent is 7: 3, respectively. Therefore, it is necessary to change some parts such as a pump part and a kneading part depending on whether a resin adhesive for room temperature is used or a resin adhesive for low temperature is used. Table 1 shows the machine specifications of this construction machine as a reference.

In this case, a vinyl hose having an inner diameter of 20 mm and a length of 1.5 m is adopted as the injection tube connected to the stirring chamber. Since the content of the adhesive of this hose is 542 g and the amount of adhesive used to fill the embedding hole of the embedding plug is 140 cc × 1.15 (density) = 161 g, this hose contains 542 g / 161 g = 3.4 times of adhesive will be put.
Also, in this construction machine, in order to increase the number of embedded plugs to be installed, it is necessary to shorten the mixing time of the adhesive material as much as possible. Pay attention. As described above, the stirring blade is composed of a rotating shaft and a substantially bilaterally symmetric flat plate shape around the rotating shaft, and each blade has an asymmetric through hole. Each flat plate of the blade is substantially rectangular. Or a substantially rectangular shape with some (in this case, the upper part) corners cut off obliquely, or a trapezoidal shape, and a plurality of (for example, three or four) through holes are formed on one flat plate. ) Circular holes are formed side by side in the axial direction of the rotating shaft, and a plurality of (for example, two) slits having the same or different length extending in the axial direction of the rotating shaft are formed on the other flat plate with respect to the axial direction of the rotating shaft. Are preferably formed in parallel in the orthogonal direction. In order to confirm the suitability of various types of these stirring blades as a mixing blade, using these stirring blades, a resin adhesive (main agent and curing agent) for room temperature is mixed, and 15 × 15 × 40 mm When the compressive strength test of the test body was performed, the compressive strength of the reference kneading was 67.6 N / mm 2, and it was confirmed that any of the shapes of the stirring blades exceeded this basic strength. Here, in particular, as shown in FIG. 6, each flat plate of the stirring blade is substantially rectangular, and the through hole is formed by linearly arranging three circular holes on one flat plate in the axial direction of the rotation axis, Two slits having different lengths extending in the axial direction of the rotating shaft are formed in parallel on the other flat plate in a direction orthogonal to the axial direction of the rotating shaft. Using this stirring blade, the mixing time of the resin adhesive (main agent and curing agent) for room temperature is changed to 8 seconds, 18 seconds, and 30 seconds, and the dynamics when the main agent and curing agent are mixed The characteristics are shown in Table 2. According to this, even if the kneading time was 8 seconds, 18 seconds, or 30 seconds, the mechanical properties of the resin adhesive for room temperature showed substantially the same behavior. According to this stirring blade, the main agent and the curing agent can be sufficiently mixed in a mixing time of 8 seconds.

(3) Handling method of construction machine In this embedded plug driving method, the handling method of the construction machine is as follows. The handling of this construction machine is the same whether a resin adhesive for room temperature or a resin adhesive for low temperature is used.
(Step 1)
Install the construction machine on the trolley cart. In this case, the construction machine should be installed horizontally and the injection tube should not be bent. Put the specified amount of the main agent in the main agent container, and put the specified amount of the curing agent in the hardener container.
(Step 2)
Turn on the power to the drive device of the stirring device and rotate the stirring blade. The stirring device is continuously operated for 3 hours at all times of the construction time of the embedded plug.
(Step 3)
Press the operation switch of the electric actuator to operate the electric actuator. By the operation of the electric actuator, the pistons of the main agent pump and the hardener pump are pushed, and the main agent and the hardener filled in the main agent cylinder and the hardener cylinder are put into the stirring chamber. In this case, each piston of the main agent pump and the curing agent pump is moved about 110 mm, and the time required for this movement is about 8 seconds. The capacity of the stirring chamber is 180 cc, and the main agent and the curing agent charged into the stirring chamber in step 3 are kneaded at 1100 rpm for 8 seconds.
(Step 4)
Stop the operation switch of the electric actuator and stop the operation of the electric actuator. As a result, the pistons of the main agent pump and the hardener pump are reversed and returned to their original positions. At that time, the inside of the main agent cylinder and the inner portion of the hardener cylinder become negative pressure. Of hardener is inhaled into each cylinder.
(Step 5)
By repeating the operations of steps 1 to 4, the kneaded adhesive is filled to the tip of the injection tube of about 1.5 m. Here, since the adhesive for the four strokes from the beginning is insufficiently mixed, the adhesive for the first four strokes is discarded. The disposal of the adhesive for four strokes will be described in detail in the following (4) supplement.
(Step 6)
After discarding the adhesive for 4 strokes from the beginning in step 5, the injection tube is put into the embedding hole of the embedding plug, and a predetermined amount, in this case, 140 cc of the adhesive is directly put into the embedding hole (in this case, Drive down to the position 65 mm below the upper end of the embedding hole.
(4) Supplement When mixing a resin adhesive for normal temperature and a resin adhesive for low temperature, the first batch of adhesive adheres to the stirring chamber or the injection tube, and the stirring chamber is hollow. For this reason, the mixing of the main agent and the curing agent is expected to be insufficient. For this reason, a resin adhesive for room temperature and a resin adhesive for low temperature were kneaded up to 5 batches, and the mechanical properties of the adhesive were examined.
Tables 3 and 4 show the list of mechanical properties of five continuous batches of normal temperature resin adhesives and low temperature resin adhesives, and show normal temperature resin adhesives and low temperature resin adhesives. The compressive strength history is shown in FIGS.

When attention is paid to the list of these mechanical properties and the compressive strength history, it can be seen that the compressive strength of the resin-based adhesive increases as the kneading batches are repeated. This is considered to be because the stirring device is continuously rotating, and therefore the first batch has a predetermined mixing time, but the second and subsequent batches have a longer mixing time. Mixing batches after 4 batches have stable mechanical properties.
From the above, the mixing time of the resin-based adhesive is 8 seconds, mixing is performed with the stirring blade shown in FIG. 6, 4 batches are discarded from the beginning of mixing, and the fifth and subsequent batches are plugged. I decided to use it for driving. The stirring device was operated continuously for 3 hours.
(5) Construction machine construction quantity test and pull-out test The applicant of the present application investigates the effect of the method of implanting the embedded plug using this construction machine, injecting a filler (adhesive) into the embedded hole, A construction quantity test for embedding the embedded plug and a pull-out test on the track slab plate were conducted.
[1.1] The number of executions of implanting filler into embedded holes and implanting plugs Table 5 shows the results of construction quantity tests related to the installation tests of implanting fillers and implanting plugs into embedded holes. Show. Of these, there is one person for implanting the filler and one for implanting the plug. The movement is the movement of a trolley cart, and the movement distance is about 5 m.

As described above, the filling time and the setting time of the plug are about 26 seconds / hole.
[1.2] Estimating the number of plugs to be installed <Estimation of the number of plugs to be plugged in when using a resin adhesive at room temperature>
Table 6 shows an estimation table for the number of embedded plugs in the case of a resin adhesive for room temperature among the fillers. In addition, this construction quantity estimation table has the following preconditions (a to c).
a. Based on the construction time of the construction hole test, that is, the construction time of the cleaning of the embedding hole with a wire brush, the cleaning with a suction cleaner, and the cleaning with acetone. There are two staff members for cleaning the embedding holes.
b. It is based on the construction time for placing the filler into the embedding hole and the embedding plug as a result of the construction quantity test. There is one person for driving the filling material, one person for driving the trolley cart, and one person for driving the plug.
c. The actual work time was excluded from 20 minutes for the preliminary work of 3 hours from 1 am to 4 am, and 20 minutes for 4 times of 5 minutes for replacement of the main agent and curing agent of the filler. 140 minutes (3 hours × 60 minutes−20 minutes−20 minutes = 140 minutes).

As described above, from the results of the embedding plug construction test, the construction quantity in the case of a resin adhesive for room temperature was 563 holes / day for cleaning the embedding holes, and 316 holes / day for implantation of the embedding plugs. Day.
<Estimation of construction quantity for embedding embedded plugs for low temperature resin adhesives>
Table 7 shows a table for estimating the number of plugs to be embedded in the case of a low-temperature resin adhesive among the fillers. In addition, this construction quantity estimation table has the following preconditions (a to c).
a. Based on the construction time of the construction hole test, that is, the construction time of the cleaning of the embedding hole with a wire brush, the cleaning with a suction cleaner, and the cleaning with acetone. However, in a low temperature environment, there is a high possibility that the embedding hole is frozen by rainwater. In that case, it is necessary to melt the rainwater frozen in the buried hole to remove the moisture in the buried hole. For that purpose, it is conceivable to melt and remove the frozen ice using water having a high specific heat, and this requires development of a device for producing hot water, a collecting device for hot water, and a cleaning device. . From the above, the construction time was defined as twice the cleaning time of the buried hole as a result of the construction quantity test. There are two staff members for cleaning the embedding holes.
b. It is based on the construction time for placing the filler into the embedding hole and the embedding plug as a result of the construction quantity test. There is one person for driving the filling material, one person for driving the trolley cart, and one person for driving the plug.
c. The actual work time was excluded from 20 minutes for the preliminary work of 3 hours from 1 am to 4 am, and 20 minutes for 4 times of 5 minutes for replacement of the main agent and curing agent of the filler. 140 minutes (3 hours × 60 minutes−20 minutes−20 minutes = 140 minutes).

As described above, according to the results of the embedded plug construction test, the construction quantity in the case of the resin adhesive for low temperature is 316 holes / day for cleaning the embedded holes and 219 holes / day for implanting the embedded plugs. Day.
[2] Pull-out test results in raceway slab plate Table 8 shows a list of pull-out test results. Here, the normal construction is the one in which the hole wall is treated with acetone and then the material is driven in. 3h in water is the one that has been immersed in water for 3 hours or longer and then the same construction as the normal construction. It is.

As described above, the averages of the normal construction and the drawing strength of 3h in water at the placement temperature of -10 ° C-drawing temperature-10 ° C of the resin adhesive for low temperature are 139.3 kN and 151.6 kN, respectively, It is destruction. Further, in order to investigate the drawing behavior when the concrete or resin was melted, construction was performed at a driving temperature of −10 ° C., and the drawing temperature was drawn at 20 ° C. As a result, the average of the pulling strength of 3h in water was 155.0 kN, and the same result as the above pulling strength was obtained.
The average of the drawing strength of the normal construction when the resin-based adhesive for normal temperature is 20 ° C. to 20 ° C. is 164.7 kN, and the breaking mode is cone breaking.

As described above, this construction machine and the method for driving an embedded plug using the construction machine have the following advantages.
(1) This construction machine uses a low temperature resin adhesive that is used at an environmental temperature lower than 5 ° C and a normal temperature resin adhesive that is used at an environmental temperature of 5 ° C or higher. It can be used in the range of 30 ° C. The resin-based adhesive material (main agent and curing agent) can be kneaded in 8 seconds by the stirring chamber, and the resin-based adhesive material can be continuously kneaded. 63 liters per hour (per hour) 72.5 kg) of adhesive can be mixed. Moreover, the weight of this construction machine is about 40 kg, and it is also advantageous that it is easy to carry.
(2) When this construction machine is used to install a track slab embedding plug at an environmental temperature of 30 ° C., it can be constructed for 316 holes / 3 hours. The construction speed is 3.16 times that of the hole / 3 hours, and when the track slab embedding plug is installed at the environmental temperature of -10 ° C, 219 holes / 3 As a result, it is possible to realize a construction speed of 2.19 times as compared with 100 holes / 3 hours of the normal construction of the embedded plug.
(3) The pulling-out strength of the embedded plug constructed using this construction machine can achieve a compressive strength of concrete of 40 N / mm 2 or more and a drawing strength of 120 kN or more in 72 hours of curing.

M Construction machine T1 Main agent container T2 Hardener container 1 Main agent metering pump 11 Suction port 12 Discharge port 13 Main agent cylinder 14 Piston 2 Hardener metering pump 21 Suction port 22 Discharge port 23 Main agent cylinder 24 Piston A Drive unit (electric actuator)
DESCRIPTION OF SYMBOLS 3 Stirring device 31 Main agent injection port 32 Curing agent injection port 33 Adhesive spout 34 Stirring chamber 35 Stirring blade 351 Rotating shaft 352 Flat plate 353 Through hole 354 Through hole 355 Blade 36 Driving device 4 Injection tube 5 Base 6 Material attachment Base 61 Base 611 Connection port 612 Connection port 62 Connection port 63 Connection port 64 Connection tube 65 Connection tube 66 Support frame 7 Manifold

Claims (10)

The main agent container that contains the main agent that forms the resin-based adhesive material is connected, the specified amount of the main agent is sucked and measured by vacuum suction from the main agent container, and the main agent metering pump that discharges it, and the resin-based adhesive material is cured A curing agent metering pump that is connected to a curing agent container that contains the agent, sucks and measures a predetermined amount of the curing agent from the curing agent container by vacuum suction, and discharges the curing agent;
Connected to the discharge side of the main agent metering pump and the curing agent metering pump, and stirs and mixes the main agent and hardener discharged from the main agent metering pump and the hardener metering pump at a specified mass mixing ratio, and a specified amount A stirring device for pouring out the adhesive of
With
The stirrer has a structure in which the main agent and the curing agent previously injected and agitated are extruded by the main agent and the curing agent to be injected next,
Each time the stirrer is continuously rotated and mixing of the main agent and the hardener previously mixed in the stirrer is completed, the main agent metering pump and the hardener metering pump are driven, and the main agent metering pump and The next main agent and curing agent are discharged and charged from the curing agent metering pump to the stirring device, and the resin adhesive after mixing is extruded from the stirring device by the injection of the next main agent and curing agent. Put out,
A resin-based adhesive mixing machine.   Each of the main agent metering pump and the hardener metering pump includes a cylinder having a suction port and a discharge port, a piston that is reciprocally inserted into the cylinder, and a driving device that drives the piston. Each cylinder and each piston have the same length and the same or different diameter, and are formed so as to be able to suck and discharge a prescribed amount of main agent and curing agent, and each piston of each pump is operatively connected to a common drive device, The resin-based adhesive kneading machine according to claim 1, which is driven by the common driving device.   The stirrer has an injection port and a spout for the main agent and the curing agent, and includes a stirring chamber for mixing the main agent and the curing agent, a stirring blade rotatably disposed in the stirring chamber, and the stirring blade. The stirring chamber has a shape capable of extruding the main agent and the curing agent previously injected and agitated by the main agent and the curing agent to be injected next, and the agitating blade has a rotating shaft and The resin-based adhesive kneading machine according to claim 1, wherein the machine is formed into a substantially symmetric flat plate around the rotation axis, and the blades have asymmetric through holes in each flat plate.   The through-hole is formed by arranging a plurality of holes on one flat plate in the axial direction of the rotation shaft, and a plurality of slits having the same or different length extending in the axial direction of the rotation shaft on the other flat plate in the axial direction of the rotation shaft. The resin-based adhesive kneading machine according to claim 3, which is formed in parallel in a direction perpendicular to the direction.   The resin-based adhesive kneading construction machine according to any one of claims 1 to 4, further comprising an injection pipe connected to the resin-based adhesive dispensing side of the stirring device for feeding the adhesive to the construction site.   The resin-based adhesive kneading machine according to any one of claims 1 to 5, further comprising a carriage for mounting and moving the main agent metering pump, the curing agent metering pump, and the stirring device. Resin system having an adhesive mixing step of mixing a resin-based adhesive material to be injected into holes, cracks and other construction sites of a structure, and an adhesive injection step of injecting the resin-based adhesive into the construction site In the adhesive construction method,
The construction machine according to any one of claims 1 to 4 is used for the kneading step, and a prescribed amount of a resin-based adhesive material necessary as one batch is measured for each construction site, and a prescribed mass mixing ratio is used. Stir and mix to pour out one batch of resin adhesive after completion of mixing.
A construction method of a resin adhesive characterized by that. Resin system having an adhesive mixing step of mixing a resin-based adhesive material to be injected into holes, cracks and other construction sites of a structure, and an adhesive injection step of injecting the resin-based adhesive into the construction site In the adhesive construction method,
The construction machine according to claim 5 or 6 is used for the kneading step and the adhesive injection step, and the prescribed amount of the resin-based adhesive material required as one batch for each construction site is measured. Stir and mix at a mass mixing ratio and inject a batch of resin adhesive after completion of mixing into the construction site.
A construction method of a resin adhesive characterized by that. A perforating step for embedding an embedding hole for embedding an embedding plug, an adhesive kneading step for kneading a resin-based adhesive material filling the embedding hole, and the resin-based adhesive in the embedding hole. In a method for implanting an embedded plug, including an adhesive injection step of injecting, and an embedded plug embedded installation step of inserting and fixing the embedded plug into the embedded hole,
The construction machine according to any one of claims 1 to 4 is used for the kneading step, and a prescribed amount of a resin-based adhesive material required as one batch is measured for each embedding hole, and a prescribed mass mixing ratio is obtained. To mix and stir and mix 1 batch of resin adhesive after mixing is completed.
A method for driving an embedding plug characterized by the above. A perforating step for embedding an embedding hole for embedding an embedding plug, an adhesive kneading step for kneading a resin-based adhesive material filling the embedding hole, and the resin-based adhesive in the embedding hole. In a method for implanting an embedding plug having an injecting adhesive injection step and an embedding plug embedding step of inserting and fixing the embedding plug into the embedding hole,
The construction machine according to claim 5 or 6 is used for the kneading step and the adhesive injection step, and the prescribed amount of the resin-based adhesive material required as one batch for each embedding hole is measured. Stir and mix at a mass mixing ratio, and inject 1 batch of resin adhesive after completion of mixing into the embedding hole.
A method for driving an embedding plug characterized by the above.

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