KR100627730B1 - Automatic Management System of Sealing Section of Caisson - Google Patents

Abstract

The present invention is to supplement the pressure for maintaining the pressure of the expansion tube, or to protect the expansion tube by preventing excessive pressure generated in the expansion tube, the automatic management of the caisson watertight portion to collect the inflow water flowing into the caisson to drain to the outside It is about the system.

In the automatic management system of the caisson watertight portion according to the present invention, in the known caisson provided with a watertight portion at the bottom of the panel which is coupled to the plurality of panels are located on the bottom, the watertight portion is installed on the caisson and connected to the injection port An expansion tube installed at the side pressure sensor and the upper part of the caisson and having a discharge side pressure sensor connected to the discharge port to maintain an appropriate pressure by inflow and discharge pressure, and installed outside the expansion tube to collect water introduced into the caisson And, the drain pump is installed at the bottom, the water level measuring sensor is installed is characterized in that the sump to be discharged to the drain pump when the inflow water penetrating into the caisson is more than a predetermined amount.

Therefore, the automatic management system of the caisson watertight portion according to the present invention, by automatically maintaining the pressure supplement or pressure discharge of the expansion tube to maintain the proper pressure of the expansion tube to prevent damage to the expansion tube, inflow water oozing into the caisson It is easy to maintain and collect by draining to the outside and to maximize efficiency, and it is effective to secure safety and comfortable working space of internal worker.

Caisson, watertight part, expansion tube, sump, check valve, discharge valve, pressure sensor, water level sensor

Description

Automatic Management System of Sealing Section of Caisson

1 is a cross-sectional view showing an installation state of a conventional pier repair caisson.

Figure 2 is a schematic diagram of the automatic management system of the caisson watertight portion according to the present invention.

Figure 3 is a detailed view of the caisson watertight portion according to the present invention.

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a detailed view of the automatic management system of the caisson watertight portion according to the present invention.

6 is a conceptual diagram of the automatic management system of the caisson watertight portion according to the present invention.

** Description of the symbols for the main parts of the drawings **

1: caisson body 2: support

3: Existing Structure 4: Watertight Part

5: expansion tube 6: sump

7: inlet 8: outlet

9: structural mold 10: injection pressure sensor

11: power source 12: pump

13: check valve 14: outlet pressure sensor

15: outlet valve 16: level sensor

17: drain pump 20: caisson

30: power

The present invention relates to an automatic management system of the caisson watertight portion, and more particularly, to an automatic management system of the caisson watertight portion that automatically manages the expansion tube pressure maintenance and the influent drainage.

As is well known, the construction of the caisson in the sediment layer or fixed around the pier for the construction of underwater structures such as the foundation of the bridge or repair of the pier to be constructed in a dry state excluding the water inside the caisson.

As the caisson used in the conventional bridge repair, the installation state of the caisson published in the Korean Patent Registration No. 362552 (name of the invention: pier repair caisson) filed by him is shown in FIG.

As shown, the caisson 100 is formed on the inner bottom of the body 101 to attach the tube 102 to the body 101 to be integrated, injecting air or water into the tube 102. Injection port 103 for the body 101 is formed outside. In addition, the lower side of the tube 102 is hinged and a cover 104 is formed on the body 101 to protect the tube 102 when not in use. On the upper side of the tube 102, a tube protector 105 which prevents foreign matters from falling into the tube 102 and damages the tube 102 and repairs the pressure of the tube 102 upward. Is provided. The tube protection part 105 is formed of a fixed protection plate 107 to which the bolt 106 is fastened and a reinforcing piece 108 supporting the fixed protection plate 107 integrally with the body 101, and a fixed protection plate 107. Located on the upper side of the) is formed a moving protective plate 109 coupled by the bolt 106.

The caisson watertight portion having the above configuration has a problem that it is not easy to maintain a constant pressure in the tube. That is, when a small pressure is applied to the tube, a problem occurs in which water flows into the caisson after the order. On the contrary, if excessive pressure is applied, the tube may be damaged to lose the caisson's water barrier function, and the maintenance cost may be high. Therefore, it is necessary to maintain the proper pressure by injecting air or water into the tube, which makes it difficult to completely seal the leachate. This leachate has an inconvenience that must be discharged again because it adversely affects the environment of the worker.

In addition, the infusion of air or water in the tube should be performed safely in the water phase, not in the water. When performing the pressure maintenance in the tube, it is difficult to control it and the technical know-how due to the trial and error of the operator must be achieved. There was a problem that takes a lot of air.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to supplement the pressure for maintaining the pressure of the expansion tube, or to prevent the excessive pressure generated in the expansion tube to expand It is to provide automatic management system of caisson watertight part which protects the tube and collects and drains the inflow water flowing into the caisson.

According to a feature of the present invention for achieving the above object, in the known caisson provided with a watertight portion at the bottom of the panel is coupled to the plurality of panels are located at the bottom, the watertight portion is provided on the caisson An expansion tube installed at an injection side pressure sensor connected to the inlet and an upper portion of the caisson, and having an outlet pressure sensor connected to the outlet to maintain a proper pressure by inlet and outlet pressures; Collecting the water, the drain pump is installed at the bottom, the water level sensor is installed is characterized in that the sump is provided to discharge to the drain pump when the inflow water penetrating into the caisson more than a certain amount.

In addition, the check valve is installed on the caisson upper portion is connected to the inlet of the expansion tube is installed to prevent the back flow to prevent the pressure of the expansion tube is lowered, it is installed on the caisson upper portion of the expansion tube A discharge valve connected to the discharge port is installed to prevent excessive pressure from the expansion tube.

Hereinafter, with reference to the accompanying drawings an embodiment of the automatic management system of the caisson watertight portion according to the present invention having the configuration as described above will be described in detail.

Figure 2 is a schematic diagram of the automatic management system of the caisson watertight portion according to the present invention, Figure 3 is a detailed view of the caisson watertight portion according to the present invention, Figure 4 is a cross-sectional view AA of Figure 2, Figure 5 Details of the automatic management system of the caisson watertight portion according to the present invention is shown.

As shown, the automatic management system of the caisson watertight portion according to the present invention is an expansion tube (5) having an inlet (7) and an outlet (8) installed in the lower caisson body (1), and the caisson body (1) An injection-side pressure sensor 10 installed at the inlet 7 and an outlet-side pressure sensor 14 installed at an upper portion of the caisson body 1 and installed at the outlet 8, and the expansion tube 5. ) Installed in the collecting well 6 for collecting water flowing into the caisson 20 installed outside, the water level measuring sensor 16 installed in the collecting well 6, and the collecting well 6. The drain pump 17 for draining the collected water, the check valve 13 connected to the inlet 7 of the expansion tube 5, and the drain valve 15 connected to the outlet 8 of the expansion tube 5. It is composed.

The caisson body (1) is supported at regular intervals from the existing structure (3) by the support (2) therein. In addition, the watertight portion 4 is composed of the expansion tube (5) and the sump (6).

The expansion tube (5) is installed below the caisson body (1), and maintains the pressure in the inlet (7) and the expansion tube (5) in which water is injected into the expansion tube (5) or when the expansion tube ( 5) is provided with an outlet 8 for discharging the injected water. The expansion tube (5) is accommodated in the structural frame (9) open one side is in close contact with the structural frame (9) and the existing structure (3) at the time of expansion can maintain the interior of the caisson 20 watertight state .

The injection side pressure sensor 10 is installed above the caisson body 1 and is connected to the injection hole 7 so as to measure the pressure of water injected into the expansion tube 5. The injection side pressure sensor 10 operates the pump 12 by supplying a power source 30 to the power source 11 until the proper pressure is reached into the expansion tube 5 by measuring the pressure of the injected water. 5) Inject water into It is preferable to install a check valve 13 between the pump 12 and the injection side pressure sensor 10 to prevent backflow from the expansion tube 5 to the pump 12. The check valve 13 is opened when the power supply 30 is supplied to the pump 12, and a proper pressure is applied to the expansion tube 5 to supply power to the pump 12 by the injection side pressure sensor 10. If the block 30 is operated at this time it is closed.

The discharge pressure sensor 14 is installed on the caisson body 1 and connected to the discharge port 8 to measure the pressure of air or water discharged from the expansion tube 5. The discharge-side pressure sensor 14 measures the pressure of the water injected into the expansion tube 5 and immediately discharges the water injected into the expansion tube 5 when excessive pressure is applied to the expansion tube 5. To maintain the proper pressure. The discharge valve 15 is normally closed and the water flowing into the expansion tube 5 is not discharged, and when excessive pressure is applied to the expansion tube 5, the power supply 30 is supplied to the discharge valve 15. The supply is opened to prevent damage to the expansion tube (5).

By the injection side pressure sensor 10 and the discharge side pressure sensor 14, when the pressure in the expansion tube (5) is low, water is injected into the expansion tube (5), the inside of the expansion tube (5) If the pressure is excessive, water is discharged from the expansion tube (5). Therefore, the expansion tube (5) maintains a proper pressure, it is possible to maintain the protection and watertight state of the expansion tube (5).

As shown in the cross-sectional view of FIG. 4, the sump collecting well 6 is installed outside the expansion tube 5, and then inside the caisson after expansion of the expansion tube 5 by water or air injected into the inlet 7. In the state of excluding water in the collection tube to collect the water that penetrates between the expansion tube (5) and the caisson body (1), or to collect the rainwater flowing into the caisson upper, etc. can be discharged to the outside of the caisson (20). The water collecting well 6 is provided with a water level measuring sensor 16. When the water flowing into the caisson 20 by the water level measuring sensor 16 reaches a predetermined amount or more, the water level measuring sensor 16 is operated. By operating the drain pump 17 installed in the lower portion of the crystal (6) is the water collected by the sump (6) is discharged to the outside of the caisson (20).

6 is a conceptual diagram of an automatic management system of the caisson watertight portion according to the present invention.

As shown, the control by the automatic management system according to the present invention is to control the inflow of water flowing into the expansion tube (5) and the discharge control of the water discharged from the expansion tube (5) and drainage for the drainage of water collected by the sump Can be divided into control.

The inflow control is made by measuring the pressure of the water flowing into the expansion tube (5) by the injection side pressure sensor (10). When the pressure below the proper pressure is applied to the injection-side pressure sensor 10, the power supply 30 is supplied to the pump 12 to continue the injection, and the check valve 13 is in an open state. When the injection continues in this state and the pressure in the expansion tube 5 reaches a proper pressure, the power supply 30 of the pump 12 is cut off and the power supply 30 is supplied to the check valve 13 so that the check valve 13 It will be closed. This state is a state in which water injected into the expansion tube 5 is prevented from flowing back to the pump 12.

The discharge control is achieved by discharging the water injected into the expansion tube (5) by supplying power (30) to the discharge valve 15 when the expansion tube (5) is excessively pressured by the discharge side pressure sensor (14). You lose. The discharge valve 15 is normally closed so that water flowing into the expansion tube 5 is not discharged and is opened when excessive pressure is applied to the expansion tube 5 to damage the expansion tube 5. Will be prevented.

The drainage control supplies water to the drainage pump 17 by operating the drainage pump 17 when the water collected by the water level measurement sensor 16 installed in the sump 6 reaches a constant level. By draining.

As described above, according to the present invention, by automatically maintaining the pressure supplement or pressure discharge of the expansion tube to maintain the proper pressure of the expansion tube to prevent damage to the expansion tube, and collects the inflow water seeping into the caisson to the outside It is easy to maintain by draining, to maximize efficiency and to secure the safety and pleasant working space of the internal worker.

Claims (3)

In the known caisson 20 in which a plurality of panels are joined and provided with a watertight portion 4 at the lower end of the panel positioned at the lowermost side, The watertight part 4 is installed on the caisson 20 and the injection side pressure sensor 10 connected to the inlet 7 and the outlet side pressure sensor 14 installed on the caisson 20 and connected to the outlet 8. Expansion tube (5) having a) to maintain the proper pressure by the inlet and outlet pressure, It is installed outside the expansion tube (5) to collect the water introduced into the caisson 20, the drain pump 17 is installed at the bottom, the water level measurement sensor 16 is installed so as to seep into the caisson (20) Automatic management system of caisson watertight portion, characterized in that the sump (6) is provided to be discharged to the drain pump (17) when the incoming inflow water exceeds a certain amount. The method of claim 1, The check valve 13 installed above the caisson 20 and connected to the inlet 7 of the expansion tube 5 is installed to prevent backflow, thereby preventing the pressure of the expansion tube 5 from being lowered. Automatic management system of caisson watertight parts. The method of claim 1, A caisson, which is installed on the caisson 20 and connected to the outlet 8 of the expansion tube 5, is installed to prevent excessive pressure from the expansion tube 5. Automatic management system of watertight part.

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