A leakage monitoring device and method based on shield tunnel segments

Abstract

The present invention relates to a leakage monitoring device and method based on a shield tunnel segment, which includes a lamp, a wire, a water absorption line, and a detection device. The lamp includes a first lamp disposed at the circumferential joint and a second lamp disposed at the longitudinal joint. The first lamp and the second lamp are connected through a wire and a water absorption line to form a circuit when leakage occurs, causing the corresponding first lamp and second lamp to emit light. Different from the monitoring devices in the prior art, the leakage monitoring device can sense the light of the lit lamp, identify the position number of the lamp and the position number of the segment, and it can quickly and accurately obtain the position and scope of the leakage occurrence, etc.

Description

Technical Field

[0001] The present invention relates to the field of tunnel engineering, and particularly to a device and method for monitoring water seepage and leakage based on shield tunnel segments. Background Art

[0002] At present, water seepage and leakage of segments mostly occur at the joints of segments. The gaps between segments are uneven, with some local gaps being too large, and the sealing with sealing strips is not tight. In addition, during the assembly process of segments, due to the unreliable pasting of sealing strips, the sealing strips become loose or deformed during splicing, thus losing the sealing effect and causing water seepage and leakage in the tunnel. After the completion of tunnel construction, due to abundant groundwater, high water pressure or long segment joints, it is very easy for the gasket to be not tightly sealed, and local water seepage and leakage occur at the segment joints.

[0003] In the prior art, the risk monitoring methods for tunnel water seepage and leakage have more qualitative components, rely more on expert experience, are highly subjective, and the monitoring data is inaccurate, resulting in a low accuracy rate and large error in actual risk monitoring. Therefore, there is an urgent need for an objective and accurate method for monitoring water seepage and leakage. Summary of the Invention

[0004] In order to solve the above-mentioned defects and deficiencies in the prior art, the present invention provides a device and method for monitoring water seepage and leakage based on shield tunnel segments.

[0005] A device for monitoring water seepage and leakage based on shield tunnel segments includes a segment layer, which has circumferential joints and longitudinal joints; waterproof layers are provided at both the circumferential joints and the longitudinal joints, and a water seepage and leakage monitoring device is installed on the outer surface of the waterproof layer.

[0006] The water seepage and leakage monitoring device includes lamps, wires, water absorption lines and a detection device. The lamps include Lamp One provided at the circumferential joint and Lamp Two provided at the longitudinal joint. Lamp One and Lamp Two are connected through wires and water absorption lines to form a circuit when water seepage and leakage occur, causing the corresponding Lamp One and Lamp Two to emit light. Position codes are provided on Lamp One and Lamp Two.

[0007] The detection device is arranged on the segment and is used to detect the light of Lamp One and Lamp Two and send the information of the corresponding illuminated Lamp One and Lamp Two to a remote monitoring center.

[0008] Video monitoring devices are arranged at certain intervals in the tunnel. The video monitoring devices are used to monitor the segment state in real time and send the water seepage and leakage pictures to the remote monitoring center.

[0009] When the remote monitoring center receives the information from the detection device, it will emit an alarm sound, and at the same time, the remote monitoring center automatically calls out the water seepage and leakage pictures.

[0010] Preferably, the first lamp includes lamp LA, and the second lamp includes lamps LB, LC, and LD. Among them, lamp LA and lamp LD are respectively arranged at the intersections of two adjacent longitudinal and circumferential joints of the segment rings, and lamps LB and LC are arranged at the longitudinal joints and respectively correspond to the left and right holes of the segment.

[0011] Preferably, lamps LA, LB, and LC are respectively connected to wires and water-absorbing wires to form a parallel circuit. The parallel circuit and lamp LD are connected in series to form Circuit One, and six Circuit Ones are connected in parallel to form Circuit Two. The two ends of Circuit Two are connected in series with a low-voltage power supply and a switch.

[0012] Preferably, lamps LA, LB, LC, LD, and the segments are all provided with position numbers.

[0013] Preferably, there is a wired or wireless connection between the detection device and the remote monitoring center.

[0014] Preferably, the information of the correspondingly lit first and second lamps includes the position numbers and quantities of lamps LA, LB, LC, LD, and the segments.

[0015] Preferably, the video monitoring device includes a camera, which is a 360° rotatable camera. There is a wired or wireless connection between the video monitoring device and the remote monitoring center.

[0016] A monitoring method for a leakage monitoring device based on shield tunnel segments. Step One: Install the segments, lay a waterproof layer at the segment joints, and install a leakage monitoring device inside the waterproof layer; install a video monitoring device inside the tunnel.

[0017] Step Two: The detection device detects whether the lamp is on and sends the information to the remote monitoring center

[0018] Video; the video monitoring device sends the picture of the leakage to the remote monitoring center;

[0019] Step Three: Determine the position and quantity of the lit lamps respectively according to the monitoring signals and the pictures of the leakage.

[0020] Step Four: According to the information of the detection device, judge and obtain Result One: judge the position and leakage volume of the leakage; according to the picture of the leakage, judge and obtain Result Two: judge the position and leakage volume of the leakage.

[0021] Step Five: Judge whether Result One and Result Two are consistent.

[0022] Step Six: If so, determine the cause and level of the leakage; if not, conduct on-site inspection.

[0023] Step Seven: Determine whether maintenance is needed.

[0024] Step 8: If so, determine the maintenance plan; if not, use the water seepage monitoring device and video monitoring device for real-time monitoring.

[0025] Preferably, the levels of water seepage include wet stains, water seepage, water droplets, dripping, and linear leakage.

[0026] Preferably, the video monitoring device sends the water seepage picture taken by the camera closest to the water seepage location to the remote control center.

[0027] The beneficial technical effects achieved by the present invention:

[0028] On the basis of using a sealing strip for sealing treatment at the traditional joint, the present invention arranges a waterproof layer, and the waterproof effect is better.

[0029] The water seepage monitoring device of the present invention is different from the monitoring devices in the prior art. The water seepage monitoring device can sense the light of the illuminated lamp, identify the position numbers of the lamp and the segment, and it can quickly and accurately obtain the position and scope where the water leakage occurs, etc.

[0030] The present invention adopts the dual guarantee of the video monitoring device combined with the water seepage monitoring device, which can make up for the deficiencies of the video monitoring, provide better reliability for accurately finding the position and scope where the water leakage occurs, and reduce the influence of other factors on the monitoring effect.

[0031] The remote monitoring center of the present invention analyzes, judges, compares, etc. the monitoring information and pictures of the video monitoring device and the water seepage monitoring device, can accurately obtain the position and scope where the water leakage occurs, and give the reasons for the water leakage, the maintenance plan, etc., thereby improving the maintenance efficiency. Description of the Drawings

[0032] Figure 1 Schematic diagram of tunnel segments;

[0033] Figure 2 Circuit diagram of the lamp at the segment ring;

[0034] Figure 3 Flow chart of the water seepage monitoring method.

[0035] Among them, 1 - lamp LA; 2 - lamp LB; 3 - lamp LC; 4 - lamp LD; 5 - waterproof layer; 6 - water absorption line; 7 - circumferential joint; 8 - segment ring; 9 - longitudinal joint. Detailed Embodiments

[0036] For the convenience of description, in this application, if the words "upper", "lower", "left", and "right" appear, they only indicate the same directions as the upper, lower, left, and right of the attached drawings themselves, and do not limit the structure. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this application. In addition, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] Term Explanation Section: Terms such as "installation", "connection", "connection", and "fixation" in this application should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a direct connection or

[0038] indirectly connected through an intermediate medium. It can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The present invention will be further described below in conjunction with specific embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0040] The present invention patent will be further described below in conjunction with the attached drawings and embodiments.

[0041] As Figures 1-3 shown, a leakage monitoring device based on shield tunnel segments includes a segment layer, and the segment layer has circumferential joints and longitudinal joints; waterproof layers are provided at both the circumferential joints and the longitudinal joints, and a leakage monitoring device is installed on the outer surface of the waterproof layer.

[0042] The segment ring is formed by connecting 6 segments. Some structural features of the segments belong to the prior art and will not be described repeatedly here.

[0043] The leakage monitoring device includes lamps, wires, water-absorbing lines, and detection devices. The lamps include Lamp One provided at the circumferential joint and Lamp Two provided at the longitudinal joint. Lamp One and Lamp Two are connected through wires and water-absorbing lines to form a circuit when leakage occurs, causing the corresponding Lamp One and Lamp Two to emit light. Both Lamp One and Lamp Two are provided with position numbers. The water-absorbing line can be a water-absorbing cotton strip or the like. When the water-absorbing line absorbs the leaked water, the water-absorbing line has a conductive function, conducting the circuit of the corresponding lamp, and the lamp is powered on and emits light.

[0044] The detection device is installed on the segment. The detection device is used to detect the light of Lamp 1 and Lamp 2, and send the information of the correspondingly lit Lamp 1 and Lamp 2 to the remote monitoring center. The detection device can include a light sensor or the like, or other light-measuring devices existing in the prior art. The detection device can also include a barcode scanner or the like that can identify the lit lamp and the position number or barcode on the segment, etc.; the number and position of the detection devices are set according to actual needs. For example, the detection device can be arranged near the top where two segment rings are connected, so that the position numbers of all the lamps on the two segment rings and the segment position numbers can be detected. The detection device can also include a counter or the like to calculate the number of lit lamps. The detection device first detects the light of the lamp, then identifies the number, segment number, and quantity of the lit lamp, and then sends these numbers and quantities to the remote control center; the remote control center can judge and analyze the position of the water leakage and the amount of water leakage based on the position and quantity of the lit lamp. As for the position numbers of the lamp and the segment, some numbering methods in the prior art can be used to determine them. In order to avoid the influence of tunnel lighting on the detection device, special-color light can be used. For example, the lamp can emit red light, blue light, green light or other colors of light; in order to avoid water leakage from damaging the lamp, waterproof LED lamps or other types of waterproof lamps in the prior art can be used.

[0045] Video monitoring devices are installed at certain intervals in the tunnel. The video monitoring devices are used to monitor the segment status in real time. The video monitoring device can include a camera or the like. The camera is a 360° rotating camera. The number of cameras can be arranged according to the actual situation in terms of position and quantity, etc. In addition, each camera is set with a number, which is convenient for determining the position of water leakage. The video monitoring device is connected to the remote monitoring center by wire or wirelessly. These two connection methods can adopt common technical means in the prior art and will not be repeatedly defined here. The video monitoring device also includes a control unit, etc. When multiple cameras capture the picture of water seepage, in order to avoid the influence of light, viewing angle, etc. on the accuracy, the control unit can send the picture of water seepage captured by the camera closest to the water seepage to the remote monitoring center. Since there is a lit lamp at the place of water seepage, it is also convenient for the camera to clearly capture the position and area size of the water seepage, etc. As for the video monitoring device to identify water seepage, some processing methods in the prior art can be adopted, such as comparing and analyzing the captured water seepage image with a reference image to obtain the position, level, etc. of the water seepage, which will not be elaborated here. In addition, the remote monitoring center includes a database, and the database already stores the position, quantity of the lamp and the corresponding water leakage level, cause, repair plan, etc.

[0046] When the remote monitoring center receives the information from the detection device, it will emit an alarm sound. The alarm sound reminds the staff to check the water seepage situation in time, and at the same time, the remote monitoring center automatically calls out the picture of the water seepage. When the staff checks, they can check the position and quantity of the lit lamp, etc.

[0047] Such as Figure 2As shown in the figure, Lamp 1 includes Lamp LA1, and Lamp 2 includes Lamps LB2, LC3, and LD4. Among them, Lamp LA1 and Lamp LD4 are respectively arranged at the intersections of two adjacent segment rings 8's longitudinal connection seams 9 and circumferential connection seams 7. Lamps LB2 and LC3 are arranged at the longitudinal connection seams and respectively correspond to the left and right holes of the segments. These holes can be bolt holes, grouting holes, etc.

[0048] Lamps LA, LB, and LC are respectively connected to wires and water absorption lines to form a parallel circuit. The parallel circuit and Lamp LD are connected in series to form Circuit 1. One set of Circuit 1 is arranged on each segment, and six sets of Circuit 1 are used for one segment ring. Therefore, the six Circuit 1s are connected in parallel to form Circuit 2, and the two ends of Circuit 2 are connected in series with a low-voltage power supply and a switch. Lamps LA, LB, LC, LD, and the segments are all provided with position numbers. The water absorption line 6 in the circuit of Lamp LA1 is arranged on the circumferential connection seam, so that whether the circumferential connection seam leaks can be measured. The water absorption line in the circuit of Lamp LB2 is arranged at the longitudinal connection seam on the right half, so that it is convenient to detect whether the holes of the segments and the longitudinal connection seam on the right half leak, etc. The water absorption line in the circuit of Lamp LC3 is arranged at the longitudinal connection seam on the left half, so that it is convenient to detect whether the holes of the segments and the longitudinal connection seam on the left half leak, etc. The amount of water leakage is judged according to the position and quantity of the lit lamps. For example, when only Lamps LA and LD are lit, it is initially judged that the circumferential connection seam leaks water, and then the amount of water leakage is judged according to the quantity of Lamps LA and LD. If only one of Lamp LA and Lamp LD is lit, it indicates that the amount of water leakage is very small. When Lamps LB and LD are lit, it is initially judged that the longitudinal connection seam on the right half and / or the right hole leaks water, and then the amount of water leakage is judged according to the quantity of Lamps LB and LD. If only one of Lamp LB and Lamp LD is lit, it indicates that the amount of water leakage is very small. When Lamps LC and LD are lit, it is initially judged that the longitudinal connection seam on the left half leaks water and / or the left hole leaks water, etc., and then the amount of water leakage is judged according to the quantity of Lamps LC and LD. If only one of Lamp LC and one of Lamp LD are lit, it indicates that the amount of water leakage is very small; if two of Lamp LC and two of Lamp LD are lit, it indicates that the amount of water leakage is a little larger. When Lamps LB, LC, and LD are lit, it is initially judged that the longitudinal connection seam leaks water. If only one of Lamp LB, one of Lamp LC, and one of Lamp LD are lit, it indicates that the amount of water leakage is very small; if two of Lamp LB, two of Lamp LC, and two of Lamp LD are lit, it indicates that the amount of water leakage is serious, and on-site inspection and repair should be carried out in time, etc. The amount of water leakage is judged according to the above method, and the corresponding water leakage level, water leakage cause, etc. are established.

[0049] When the lamps LA, LB, LC, and LD of more than two segments are all lit, it indicates that the water leakage situation is serious, etc. The information of the corresponding lit Lamp 1 and Lamp 2 includes the position numbers and quantities of Lamps LA, LB, LC, LD, and the segments. The low-voltage power supply can select a power supply below 12V, so that when a person accidentally touches the circuit, an electric shock accident is impossible. In addition, the switch can make the circuit in a power-off state for convenient maintenance.

[0050] A monitoring method for a water leakage monitoring device based on shield tunnel segments. Step 1: Install the segments, lay a waterproof layer 5 at the segment joints, and install the water leakage monitoring device on the outer surface of the waterproof layer 5; install a video monitoring device in the tunnel. Step 2: The detection device detects whether the lamp is on and sends the information to the remote monitoring center video; the video monitoring device sends the picture of water leakage to the remote monitoring center; where the staff can view the monitoring signal and the picture of water leakage. Step 3: Determine the position and quantity of the lit lamps respectively according to the monitoring signal and the picture of water leakage. Step 4: According to the information of the monitoring device, judge and obtain Result 1: Judge the position and leakage volume of water leakage; according to the picture of water leakage, judge and obtain Result 2: Judge the position and leakage volume of water leakage. Step 5: Judge whether Result 1 and Result 2 are consistent. Step 6: If so, determine the cause and level of water leakage; if not, conduct on-site inspection. Step 7: Determine whether maintenance is required. Step 8: If so, determine the maintenance plan; if not, use the water leakage monitoring device and the video monitoring device for real-time monitoring. Among them, judging the position and leakage volume of water leakage, etc. can be judged manually or by the remote control center.

[0051] The levels of water leakage include damp stain, seepage, water droplet, drip leakage, and line leakage. In addition, the risk levels corresponding to 5 levels of water leakage are also set, which are common level divisions in the prior art and will not be described repeatedly here.

[0052] The video monitoring device sends the picture of water leakage taken by the camera closest to the water leakage position to the remote control center.

[0053] The remote monitoring center of the present invention analyzes, judges, compares, etc. the monitoring information and pictures of the video monitoring device and the water leakage monitoring device, can accurately obtain the position and scope of water leakage, and give the cause of water leakage, maintenance plan, etc., thereby improving the maintenance efficiency.

[0054] The present invention has been published with preferred embodiments, but it is not intended to limit the present invention. Any technical solutions obtained by adopting equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A leakage monitoring device based on a shield tunnel segment, comprising a segment layer, the segment layer having circumferential joints and longitudinal joints; characterized in that: Waterproof layers are provided at both the circumferential joints and the longitudinal joints, and a leakage monitoring device is installed on the outer surface of the waterproof layer. The leakage monitoring device includes lights, wires, water absorption lines, and a detection device. The lights include Light One provided at the circumferential joint and Light Two provided at the longitudinal joint. Light One and Light Two are connected through wires and water absorption lines to form a circuit when leakage occurs, causing the corresponding Light One and Light Two to emit light. Position numbers are provided on Light One and Light Two. The detection device is arranged on the segment, and is used to detect the light of Light One and Light Two and send the information of the correspondingly lit Light One and Light Two to the remote monitoring center. Video monitoring devices are arranged at certain intervals in the tunnel. The video monitoring devices are used to monitor the segment state in real time and send the leakage pictures to the remote monitoring center. When the remote monitoring center receives the information from the detection device, it will emit an alarm sound, and at the same time, the remote monitoring center automatically calls out the leakage pictures. Light One includes Light LA, and Light Two includes Light LB, Light LC, and Light LD. Among them, Light LA and Light LD are respectively arranged at the intersections of the longitudinal joints and the circumferential joints of two adjacent segment rings. Light LB and Light LC are arranged at the longitudinal joints and respectively correspond to the left and right holes of the segment. Light LA, Light LB, and Light LC are respectively connected to the wires and water absorption lines to form a parallel circuit. The parallel circuit and Light LD are connected in series to form Circuit One. One segment ring uses six groups of Circuit One, and the six Circuit Ones are connected in parallel to form Circuit Two. The two ends of Circuit Two are connected in series with a low-voltage power supply and a switch. The water absorption line in the circuit of Light LA is arranged on the circumferential joint. The water absorption line in the circuit of Light LB is arranged at the right half of the longitudinal joint. The water absorption line in the circuit of Light LC is arranged at the left half of the longitudinal joint. Another water absorption line is connected in series between Light LD and the circuit of Light LC.

2. The leakage monitoring device based on the segment of the shield tunnel according to claim 1, wherein: Position numbers are provided on Light LA, Light LB, Light LC, Light LD, and the segments.

3. The leakage monitoring device based on the segment of the shield tunnel according to claim 1, characterized in that: The detection device is connected to the remote monitoring center by wire or wirelessly.

4. The water leakage monitoring device based on the segment of shield tunnel according to claim 2, wherein: The information of the correspondingly lit Light One and Light Two includes the position numbers and quantities of Light LA, Light LB, Light LC, Light LD, and the segments.

5. The leakage monitoring device based on the segment of a shield tunnel according to claim 1, characterized in that: The video monitoring device includes a camera, and the camera is a 360° rotatable camera. The video monitoring device is connected to the remote monitoring center by wire or wirelessly.

6. The monitoring method of a leakage monitoring device based on a shield tunnel segment according to any one of claims 1-5, characterized in that: Step 1: Install the segments, lay the waterproof layer at the segment joints, and install the leakage monitoring device on the outer surface of the waterproof layer; install the video monitoring device in the tunnel. Step 2: The detection device detects whether the lights are on and sends the information to the remote monitoring center; the video monitoring device sends the leakage pictures to the remote monitoring center. Step 3: Determine the positions and quantities of the lit lights according to the monitoring signals and the leakage pictures respectively. Step 4: According to the information of the detection device, judge and obtain Result One: judge the leakage position and the leakage volume; according to the leakage pictures, judge and obtain Result Two: judge the leakage position and the leakage volume. Step 5: Judge whether Result One and Result Two are consistent. Step 6: If so, determine the leakage cause and level; if not, conduct on-site inspection. Step 7: Determine whether maintenance is required. Step 8: If so, determine the maintenance plan; if not, use the leakage monitoring device and the video monitoring device to monitor in real time.

7. The monitoring method of a leakage monitoring device based on shield tunnel segments according to claim 6, characterized in that: The levels of seepage water leakage include wet stains, seepage, water droplets, dripping, and linear leakage.

8. The monitoring method of a leakage monitoring device based on shield tunnel segments according to claim 6, characterized in that: The video monitoring device sends the seepage water leakage picture captured by the camera closest to the seepage water leakage location to the remote control center.

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