KR100312850B1 - Automatic water spraying apparatus for tunnel concrete curing and control method thereof - Google Patents

Abstract

PURPOSE: An automatic water spraying apparatus for tunnel concrete curing and a control method thereof are provided to reduce a labor cost required for the spraying of water, and to increase the reliability thereof. CONSTITUTION: The automatic water spraying apparatus for uniformly spraying water on the whole surface of tunnel lining concrete is comprised of a water spraying device composed of a plurality of water supply pipes(1) on which a plurality of nozzles are arranged at regular distances; a water supply pump(3) supplying water to the water supply pipes; and a truss structure(5) movably installed along a tunnel(100) for supporting water discharge pipes.

Description

Automatic sprinkling system for curing concrete in tunnel and its control method

The present invention relates to an automatic sprinkling system for concrete curing of tunnels and a control method thereof for curing tunnel lining concrete at the time of tunnel construction, and in particular, by automating the spraying work, reducing the manpower required to reduce construction costs as well as curing The present invention relates to an automatic watering device for curing concrete in tunnels and improving its control reliability.

In general, in the concrete structure by curing the water while spraying concrete, by preventing the adverse reaction due to the concrete hydration to prevent the occurrence of micro-cracks during the concrete solidification process, thereby ensuring an excellent concrete surface.

However, in the case of most conventional tunnel constructions, the specification for the wet curing work is not prepared separately, and since the cost for the curing work is not fixed on the design details, the actual curing management is not carried out and the lining in the hydration process is not implemented. It is a situation that the concrete is left in the air without curing, and even if the wet curing is performed, the worker sprays the lining concrete directly on the cured concrete using a hose.

Such conventional concrete curing work is economical because all the work depends on the manual work, there is a problem that can cause poor construction because the spraying work is not made reliably.

Therefore, the present invention has been made to solve the problems of the prior art as described above, by automating the sprinkling operation made by the conventional manual work, bringing the effect of reducing the manpower and cost, the sprinkling operation is made reliably The purpose of the present invention is to provide an automatic sprinkling system for curing concrete of a tunnel and a control method thereof, which prevents the occurrence of fine cracks on the inner wall of the tunnel, thereby preventing the risk of poor construction.

1 is a perspective view schematically showing an automatic sprinkler for curing concrete according to the present invention.

2 is a sectional front view of the automatic sprinkler of FIG.

Figure 3 is a block diagram showing a control unit of the automatic sprinkler for curing concrete according to the present invention.

Figure 4 is a flow chart of one embodiment of the automatic spraying device for curing concrete according to the present invention.

5 is a flow chart of the spraying subroutine in FIG.

6 is a flow chart of the forward movement subroutine of the sprinkler in FIG.

7 is a flow chart of the initial position return subroutine of the sprinkler in FIG.

8 is a control flowchart of another embodiment of the automatic watering device according to the present invention.

9 is a flow chart of the watering and device advancement subroutine in FIG.

<Description of the symbols for the main parts of the drawings>

1: water pipe 2: hose

3: water feed pump 4: drum

5: truss structure 6: wheel

7: rail 10: first position sensor

10 ': second position sensor 100: tunnel

101: control unit 102: warning unit

103: feed water pump motor 104: first drive motor

105: second drive motor 106: first and second position sensors

107: work completion display unit

Automatic spraying device of the present invention for achieving the above object, in the tunneling concrete curing spraying device, a plurality of water supply pipes are arranged at regular intervals in order to spray water uniformly to the entire tunnel lining concrete surface Water spraying means comprising; Water supply means for supplying water to the water supply pipe including a first drive motor for rotating the hose is wound in the forward or reverse direction to wind or unwind the hose of the water spraying means in accordance with the movement of the sprinkler; Support means for supporting the water supply pipe including a second drive motor for rotating the wheel mounted on the lower portion in the forward or reverse direction; First and second position sensing means installed at the initial position of movement and the end of movement of the sprinkler, respectively for detecting that the sprinkler reaches the installed position; And a water supply pump of the first driving motor, the second driving motor, and the water supply means to receive initial data from the user and perform the watering operation on the concrete of the tunnel while moving the watering device according to the input data. Respectively, and when the movement end position detection signal is inputted by the second position monitoring means, the first and second driving motors are operated in the reverse direction while the water supply pump is stopped, so that the sprinkling device is And a control means for controlling the first and second drive motors and the feed water pump to return to the position and to wait for a predetermined time and to repeat the watering operation by the input number of times.

In addition, the control method of the present invention in order to achieve the above object, in the control method applied to the automatic spraying device for tunnel lining concrete curing comprising water spraying means, water supply means, moving means, warning means and control means A first step of receiving initial input data from a user; A second step of sequentially moving the sprinkler by a predetermined distance between the initial position and the end position by controlling the moving means; A third step of controlling the water supply means to spray water for each of the sections to perform the watering operation; A fourth step of returning the sprinkler to the initial position by controlling the moving means after finishing the sprinkling operation in the last section; And a fifth step of repeating the second to fourth steps as many times as the number of repetitions input when the initial data is input.

In addition, another control method of the present invention in order to achieve the above object, in the control method applied to the tunnel lining concrete curing sprinkler comprising water spraying means, water supply means, moving means, warning means and control means A first step of receiving initial input data from a user; A second step of controlling the moving means to move the distance between the sprinkler and an initial position; A third step of controlling the water supply means to spray water during movement of the apparatus to continuously spray water; A fourth step of, when the watering device reaches the end position, controlling the water supply means and the moving means to return the watering device to the initial position after finishing the watering operation; And a fifth step of repeating the second to fourth steps as many times as the number of repetitions input when the initial data is input.

Hereinafter, with reference to the accompanying Figures 1 to 9 will be described in detail the configuration and operation of the automatic spraying machine for concrete curing of the tunnel of the present invention.

1 is a perspective view schematically showing the automatic spraying device for curing tunnel lining concrete, Figure 2 is a front sectional view of the automatic spraying device of Figure 1;

As shown in Figures 1 and 2, the automatic spraying device for curing concrete in the tunnel according to the present invention, a plurality of nozzles 11 formed so that water can be sprayed at a predetermined angle is provided at a predetermined interval, the tunnel An arc-shaped water supply pipe (1) having a curvature similar to that of the ceiling of (100), one end of the water supply pipe (1) and a hose (2) wound on a drum to be described later, and the hose (2) A water supply pump (3) for supplying water to be sprayed into the water supply pipe (1) through, the drum that can be wound or unwound while rotating by the first drive motor (not shown) when the watering device is in motion (4), a truss structure (5) supporting the above configuration, a wheel (6) installed at the lower end of the truss structure to move the truss structure (5) in the tunnel longitudinal direction, for driving the wheel (6) Second drive motor (not shown), the truss structure A rail 7 which provides a moving path in which water can move in the longitudinal direction of the tunnel, a membrane 8 for protecting the lower part of the apparatus from water sprayed from the nozzle of the water supply pipe 1, and a wall of the tunnel 100 and the water supply pipe And a feed pipe elevating means 9 composed of a rotating screw rod 12 and a nut 12 'so as to adjust (1) to have an appropriate distance.

In addition, the sprinkling apparatus according to the present invention, a warning means (not shown) for the attention of the worker working in the vicinity during the sprinkling operation and movement of the device, a position detection sensor for defining the sprinkling start point and the sprinkling end point when the device is moved ( 10, 10 ′), an indicator (not shown) indicating the end of the operation when the watering operation is completed, and a controller (not shown) for controlling the components. As the warning means, a warning light or a warning means (for example, a speaker) may be employed, or both a warning light and a warning means may be employed. It also includes a waterproof luminaire (not shown) that illuminates the concrete surface to confirm the effectiveness of the watering.

Referring to Figures 1 and 2, the operation of the watering device according to the present invention, first, when the watering device is located at the start of the watering in the rail 7, the screw rod 12 of the water supply pipe lifting means (9) By rotating to adjust the distance between the tunnel 100 and the water supply pipe (1). This is to set the position of the nozzle 11 so that the water sprayed from the nozzle 11 can be most effectively sprayed on the tunnel lining concrete.

Next, when the device is operated at the start of the watering, the water supply pump 3 is driven and water is supplied to the water supply pipe 1 to spray water on the tunnel concrete wall. When water is sufficiently sprayed on the tunnel wall, the operation of the feed water pump 3 is stopped. Since the sprinkling device is required to be moved by a distance corresponding to the length of the device for the sprinkling operation of the next section, the first driving motor is driven, and the drum 4 is rotated to release the hose 2 wound on the drum 4. At the same time, the wheel 6 is driven by the second drive motor to transfer the sprinkler in the forward direction. When the apparatus is moved to the next section, the feed water pump 3 is driven again to perform the watering operation in that section.

After proceeding sequentially to the next section, after repeating the watering operation as described above, when a signal is input from the first position sensor 10 installed at that position to indicate that the watering device has reached the end of the watering, the first The drive motor and the second drive motor are driven in the reverse direction, the sprinkling apparatus returns to the initial position by the reverse rotation of the wheel 6, and at the same time the drum 4 is reversely rotated so that the hose 2 is wound. When the sprinkler reaches the initial position and a signal is input from the second position sensor 10 ', the driving of the first driving motor and the second driving motor is stopped, and the operation of the warning means is stopped. At the initial position, the sprinkler waits for a set time and then repeats the above process a set number of times. After the set number of times, the sprinkler stops its operation at the initial position and activates the work completion indicator. Here, the waiting time means the time it takes for the sprinkler to reciprocate once and the sprinkled water on the tunnel wall is completely dry. it means.

In the above description, the distance corresponding to the length of the sprinkler is defined as one section, and the operation of the sprinkler which performs the sprinkling operation while sequentially moving several sections has been described. You can also carry out watering operations while proceeding to the end position.

Hereinafter, a control method of the automatic sprinkling system for curing concrete concrete according to the present invention.

First, referring to Figures 3 to 7, the control method for the spraying operation is performed in each section while the automatic watering device according to the present invention sequentially move by section.

Figure 3 is a block diagram of the control block of the automatic sprinkling system for concrete curing of the tunnel according to the present invention, Figure 4 is a control flowchart of the automatic spraying device for tunnel lining concrete curing according to the present invention, Figure 5 is FIG. 6 is a flowchart of the forward movement subroutine of the sprinkler in FIG. 4, and FIG. 7 is a flowchart of the initial position return subroutine of the sprinkler in FIG.

In order to operate the sprinkler according to the present invention, first input the initial setting value to the controller. That is, the spraying time in one section, the moving distance for each section, the number of times (n) to reciprocate between the first position sensor and the second position sensor (10, 10 ') and spraying after the device performs the spraying operation while reciprocating once The waiting time required until the dried water dries is input to the controller 101. Next, when operating the sprinkler, the control unit 101 reads the set value (S101), and sends a control signal to the warning unit 102 to notify the workers to evacuate for safety to operate the warning means (S102) . Thereafter, the control unit 102 performs a subroutine for performing a watering operation (S103).

Referring to FIG. 5, the subroutine S103 of the watering operation will be described. The control unit 101 sends a control signal to the water supply pump motor 103 to drive the water supply pump motor (S111), and then the control unit 101. ) Compares the actual sprinkling time and the initially set sprinkling time (S112), and when the actual sprinkling time reaches the initial setting value by sending a drive stop control signal to the feed water pump motor 103 to stop the operation of the pump (S104). At this time, if the set watering time and the actual watering time does not match by the determination process (S112), the feed water pump motor 103 continues to be driven. When the watering operation (S104) is completed, the device movement subroutine in the forward direction for executing the watering operation in the next section (S104).

Referring to FIG. 6, the subroutine S104 will be described. The control unit 101 sends control signals to the first drive motor 104 and the second drive motor to drive each motor in a forward direction so that the drum 4 and the wheel ( 6) Rotate As a result, the sprinkler moves forward while releasing the hose 2 wound on the drum 4. Subsequently, the controller 101 determines whether the actual moving distance of the device matches the set moving distance (S132). As a result of the determination, if the actual moving distance of the device does not reach the set moving distance, the process returns to step S131. When the actual moving distance of the device reaches the set moving distance, the control unit 101 transmits a control signal to the first drive motor and the second drive motor. Send the motor to stop the operation (S133). Accordingly, the forward movement of the sprinkling apparatus is finished in one section, and the controller performs the following step S105.

The control unit 101 sequentially repeats the section movement and the watering operation in the corresponding section until the watering apparatus reaches the watering end position. That is, the controller 101 determines whether the detection signal is input from the first position sensor (S105), and if a detection signal is not input from the first position sensor 106 installed at the watering end position, the control unit 101 returns to step S102. By repeating the above steps, when the detection signal is input from the first position sensor 106, the control unit 101 performs the next initial position return subroutine (S106).

Referring to FIG. 7, the subroutine S106 is described. The control unit 101 immediately sends a control signal to the first and second driving motors after receiving the detection signal from the first position sensor 106, thereby providing a drum 4. And driving the wheel 6 backward (S141). Thus, the sprinkler moves backward along the rail while rewinding the hose 2 released from the drum 4, and the reverse movement is performed when the device reaches the initial position where the second position sensor 106 is installed. Continue until. That is, the control unit 101 continues to drive the first and second driving motors in the reverse direction until the detection signal is input from the second position sensor 106, and when the detection signal is input from the second position sensor 106, The next step is performed (S142). The control unit 101 sends a control signal to the first and second driving motors immediately after receiving the detection signal from the second position sensor 106, stops driving, and performs the following step S107.

When the sprinkler is returned to the initial position, the control unit 101 sends a control signal to the warning unit 102 to stop the operation of the warning unit (S107), and activates the timer in the next step to wait for the preset waiting time for the device. Let's do it. The waiting time refers to the time taken for the previously sprinkled water to dry completely. When the waiting time is completed, the controller 101 determines the number of times the device reciprocates between the initial position and the watering end position and the preset reciprocation. It is compared whether recovery value n is the same (S109). In this step, if the number of round trips of the actual device is smaller than the preset number of round trips n, execution is returned to step S102 by the controller 101, and the above steps are repeatedly performed, and if the actual number of round trips is equal to the preset number of times, The control unit 101 sends a control signal to the work completion display unit 107 to inform the workers of the completion of the watering operation (S110) and ends execution. Thus, the worker can easily recognize the completion of the watering operation.

Next, referring to Figures 8 and 9, another control method of the automatic watering device according to the present invention will be described.

This is a control method for performing the sprinkling operation continuously while proceeding from the initial position to the end position of the sprinkler of the present invention.

8 is a flowchart showing another control method of the automatic watering device according to the present invention, and FIG. 9 is a flowchart of the watering operation and the apparatus forward movement subroutine in FIG.

As in the above-described method, when the sprinkler is operated by inputting an initial setting value (S201), the control unit 101 sends a control signal to the warning unit 102 to operate the warning unit (S202). Subsequently, the controller 101 performs the following watering operation and the apparatus forward movement subroutine S203.

Referring to FIG. 9, the subroutine S203 is described. The control unit 101 sends a control signal to the feed water pump motor 103 to drive the pump 3 to start the watering operation (S211), and then the control signal. Is sent to the first and second driving motors 104 and 105 to drive the motor (S212). Thus, the device moves forward slowly slowly while releasing the hose 2 wound on the drum 4. When the sprinkling apparatus which performs the sprinkling operation while moving in the forward direction reaches the sprinkling end position and the detection signal is input from the first position sensor 106 (S213), the control unit 101 sends a control signal to supply the feed water pump motor 103. After stopping the driving of the first and second driving motors 104 and 105 (S214), the following step S204 is performed.

In step S204, the sub-routine is performed by the controller 101 to return the sprinkler to the initial position. The subroutine is the same as the initial position return subroutine in the previous embodiment shown in FIG. When the sprinkler reaches the initial position, as in the control method of the previous embodiment, the control unit 101 stops the operation of the warning unit 102 (S205), and activates the standby timer to wait for the device for a preset time. (S206). At the end of the waiting time, in step S207, the controller 101 determines the round trip frequency of the sprinkler, and repeats the above steps until the round trip frequency of the device becomes the preset round trip number n. If satisfied, the control unit 101 executes the next step S208 to operate the work completion display unit 107 and end the watering operation.

The present invention described above is not limited to the above-described embodiments and drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

According to the present invention having the above-described configuration, since the wet curing work of the tunnel lining concrete is made automatically, it contributes to the reduction of manpower, precision construction, and construction cost, thereby producing economical and excellent quality lining concrete. .

Claims (6)

A tunneling concrete curing sprinkling apparatus, comprising: a water spraying means including a plurality of water supply pipes having a plurality of nozzles arranged at regular intervals in order to spray water uniformly on the entire surface of the tunnel lining concrete; Water supply means for supplying water to the water supply pipe including a first drive motor for rotating the hose is wound in the forward or reverse direction to wind or unwind the hose of the water spraying means in accordance with the movement of the sprinkler; Support means for supporting the water supply pipe including a second drive motor for rotating the wheel mounted on the lower portion in the forward or reverse direction; First and second position sensing means installed at the initial position of movement and the end of movement of the sprinkler, respectively for detecting that the sprinkler reaches the installed position; And a water supply pump of the first driving motor, the second driving motor, and the water supply means to receive initial data from the user and perform the watering operation on the concrete of the tunnel while moving the watering device according to the input data. Respectively, and when the movement end position detection signal is inputted by the second position monitoring means, the first and second driving motors are operated in the reverse direction while the water supply pump is stopped, so that the sprinkling device is Tunnel lining concrete curing characterized in that it comprises a control means for controlling to return to the position, and after the waiting time for a predetermined time, to control the first and second drive motor and the feed water pump to repeat the watering operation by the number of times inputted. Automatic watering device for According to claim 1, Automatic spraying for tunnel lining concrete curing, characterized in that it further comprises a warning means to be controlled by the control means to ventilate the surrounding workers when the spraying device moves or performs the spraying operation. Device. A control method applied to an automatic sprinkling system for curing tunnel lining concrete, comprising a water spraying means, a water supplying means, a moving means, a warning means, and a control means, comprising: a first step of receiving initial input data from a user; A second step of sequentially moving the sprinkler by a predetermined distance between the initial position and the end position by controlling the moving means; A third step of controlling the water supply means to spray water for each of the sections to perform the watering operation; A fourth step of returning the sprinkler to the initial position by controlling the moving means after finishing the sprinkling operation in the last section; And a fifth step of repeating the second to fourth steps as many times as the number of repetitions input when the initial data is input. 4. The method of claim 3, wherein, in order to provide a time required for drying the water by the watering operation from the initial position to the end position, after the watering apparatus returns to the initial position, waiting time for the input time during the initial data input Tunnel lining automatic spraying control method characterized in that it further comprises six steps. A control method applied to a tunnel lining concrete curing sprinkler comprising water spraying means, water supplying means, moving means, warning means, and control means, the control method comprising: a first step of receiving initial input data from a user; A second step of controlling the moving means to move the distance between the sprinkler and an initial position; A third step of controlling the water supply means to spray water during movement of the apparatus to continuously spray water; A fourth step of, when the watering device reaches the end position, controlling the water supply means and the moving means to return the watering device to the initial position after finishing the watering operation; And a fifth step of repeating the second to fourth steps as many times as the number of repetitions input when the initial data is input. 6. The method of claim 5, wherein, in order to provide a time required for drying the water by the watering operation from the initial position to the end position, after the sprinkling apparatus returns to the initial position, waiting time for the input time during the initial data input. Tunnel lining automatic spraying control method characterized in that it further comprises six steps.