Shield tunneling method comprehensive monitoring equipment for preventing over discharge of spoil

Abstract

The utility model discloses a kind of shield method tunnel slag soil prevents comprehensive monitoring equipment of over-discharge, comprising: flow sensor, install in the conveying pipeline of shield method tunnel slag soil;Slag soil conveyor, the output of the conveying pipeline is connected in the input of the slag soil conveyor;Portal, set in the middle part of the slag soil conveyor, the two columns of the portal are respectively set in the opposite sides of the slag soil conveyor;Laser scanner, install on the crossbeam of the portal and align in the middle part of the slag soil conveyor;Weighing device, install between the two columns, the tray of the weighing device is supported in the middle part of the slag soil conveyor to avoid the middle part of the slag soil conveyor produces deformation.The utility model solves the problem that the existing shield tunnel construction process slag soil quantity monitoring is not enough exquisite, monitoring means single.

Description

Technical Field

[0001] This utility model relates to the field of shield tunneling technology, specifically to a comprehensive monitoring device for preventing over-discharge of excavated soil in shield tunnels. Background Technology

[0002] Controlling the discharge of excavated soil is crucial during shield tunnel construction. Excessive discharge not only wastes resources and increases construction costs, but can also negatively impact the surrounding environment, such as causing ground subsidence and clogging drainage systems. Currently, traditional methods of controlling excavated soil discharge have many shortcomings. For example, monitoring the amount of excavated soil is not precise enough, monitoring methods are limited, and it is impossible to adjust the discharge amount in real time according to the progress of the tunnel boring machine. Furthermore, there is a lack of effective supervision during the transportation of excavated soil, making it easy for illegal dumping and leakage to occur. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a comprehensive monitoring device for preventing excessive discharge of excavated soil in shield tunnels is provided to address the problems of insufficient precision and limited monitoring methods in existing shield tunnel construction processes.

[0004] To achieve the above objectives, a comprehensive monitoring device for preventing over-discharge of excavated soil in shield tunnels is provided, comprising:

[0005] Flow sensor, installed on the excavation conveying pipeline of shield tunnel;

[0006] The soil conveyor belt has its outlet connected to the input end of the conveying pipe.

[0007] A gantry frame is installed in the middle of the slag conveyor belt, and the two uprights of the gantry frame are respectively installed on opposite sides of the slag conveyor belt;

[0008] A laser scanner is installed on the crossbeam of the gantry and aligned with the middle of the slag conveyor belt;

[0009] A weighing device is installed between the two columns, and the pallet of the weighing device is supported in the middle of the slag conveyor belt to prevent deformation of the middle of the slag conveyor belt.

[0010] Furthermore, it also includes a processor, which is signal-connected to the flow sensor, the laser scanner, and the weighing device.

[0011] Furthermore, the lower part of the two columns is connected to a support beam located below the slag conveyor belt, and the weighing device is fixed on the support beam.

[0012] Furthermore, it also includes a pressure sensor, which is installed between the weighing device and the support beam.

[0013] The beneficial effects of this utility model are that the comprehensive monitoring equipment for preventing over-discharge of slag in shield tunnels uses a laser scanner, flow sensor, weighing device and processor to work together to combine three slag detection structures to accurately understand slag discharge, so as to prevent the occurrence of slag over-discharge, reduce construction costs and reduce adverse environmental impacts. Attached Figure Description

[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the integrated monitoring equipment for preventing over-discharge of slag in shield tunnels, according to an embodiment of this utility model.

[0016] Figure 2 This is a front view of the integrated monitoring equipment for preventing over-discharge of slag in shield tunnels, according to an embodiment of this utility model.

[0017] Figure 3 This is a top view of the integrated monitoring equipment for preventing over-discharge of slag in shield tunnels, according to an embodiment of this utility model.

[0018] Figure 4 This is a left view of the integrated monitoring equipment for preventing over-discharge of slag in shield tunnels, according to an embodiment of this utility model.

[0019] Figure label:

[0020] 1. Slag conveyor belt; 2. Gantry; 21. Column; 22. Beam; 23. Support beam; 3. Laser scanner; 4. Weighing device; 41. Pallet; 5. Processor. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Reference Figures 1 to 4 As shown, this utility model provides a comprehensive monitoring device for preventing over-discharge of excavated soil in shield tunnels, including a flow sensor, a soil conveyor belt 1, a gantry 2, a laser scanner 3, and a weighing device 4.

[0024] A flow sensor is installed in the excavation conveying pipeline of a shield tunnel. The flow sensor is used to collect the flow rate of the excavated material discharged from the shield tunnel through the conveying pipeline.

[0025] The outlet of the conveying pipeline is connected to the input end of the excavated soil conveyor belt 1. The excavated soil conveyor belt 1 is used to convey the excavated soil from the shield tunneling method output from the outlet of the conveying pipeline.

[0026] The gantry 2 is located in the middle of the construction waste conveyor belt 1. The gantry 2 includes columns 21 and crossbeams 22. There are two columns 21. The two columns 21 of the gantry 2 are respectively located on opposite sides of the construction waste conveyor belt 1. The crossbeams 22 connect the tops of the two columns 21.

[0027] The laser scanner 3 is installed on the crossbeam 22 of the gantry 2. The laser scanner 3 is aligned with the middle of the slag conveyor belt 1.

[0028] In this embodiment, the laser scanner 3 is a 2D laser scanner 3.

[0029] The laser scanner 3 is positioned directly above the conveyor belt of the waste conveyor belt 1. The laser scanner 3 is used to scan the surface shape of the waste.

[0030] The weighing device 4 is installed between the two columns 21. The pallet 41 of the weighing device 4 is supported in the middle of the construction waste conveyor belt 1 to prevent deformation of the middle section of the conveyor belt 1. Specifically, the weighing device 4 is an electronic scale. The shape of the pallet 41 of the weighing device 4 is adapted to the cross-sectional shape of the conveyor belt 1, such as... Figure 4 As shown, the bottom surface of the conveyor belt of the slag conveyor belt 1 is completely attached to the top surface of the pallet 41 of the weighing device 4. On the one hand, the weighing device 4 weighs the slag on the conveyor belt, and on the other hand, the pallet 41 can constrain the shape of the conveyor belt, so that the surface shape of the shield tunnel slag in the middle of the slag conveyor belt 1 obtained by the laser scanner 3 is accurate.

[0031] In this embodiment, the comprehensive monitoring equipment for preventing over-discharge of excavated soil in shield tunnels of this invention also includes a processor 5. The processor 5 is connected to the flow sensor, the laser scanner 3, and the weighing device 4.

[0032] The lower part of the two columns 21 is connected to a support beam 23 located below the slag conveyor belt 1, and the weighing device 4 is fixed on the support beam 23.

[0033] In this embodiment, the comprehensive monitoring equipment for preventing over-discharge of slag in shield tunnels of this utility model also includes a pressure sensor, which is installed between the weighing device 4 and the support beam 23.

[0034] Pressure sensors are used to monitor the pressure of the slag on the conveyor belt in real time. By observing the relationship between pressure and slag volume, the amount of slag in the slag bin can be indirectly obtained.

[0035] The flow sensor directly measures the flow rate of excavated soil through the conveying pipeline per unit time, thereby accurately determining the amount of excavated soil discharged.

[0036] The weighing equipment directly measures the mass of the construction waste, calculating its volume by measuring the density of the waste on-site.

[0037] The processor 5 is used for data processing and analysis. It calculates the discharge volume through three modes: the discharge volume based on the flow rate and discharge time of the excavated soil from the flow sensor, the volume of the excavated soil based on the surface shape of the excavated soil collected by the laser scanner 3, and the mass of the excavated soil directly measured by the weighing equipment. These modes allow the tunnel boring machine operator to make a comprehensive judgment on the excavated soil discharge situation and adjust the tunnel boring machine's advance speed according to the excavated soil discharge situation, so as to ensure construction safety and efficiency.

[0038] The specific construction process of this utility model's integrated monitoring equipment for preventing over-discharge of spoil in shield tunnels is as follows:

[0039] The equipment starts up, the muck conveyor belt 1 begins operation, and three muck detection devices—flow sensor, laser scanner 3, and weighing device 4—start up to jointly monitor the details of the muck discharge. The tunnel boring machine (TBM) operator comprehensively judges the muck discharge situation based on the three detection results from the processor 5, combining this with their construction experience to manually determine the muck discharge situation and feed it back to the processor 5. After a long period of human-machine interaction, the processor 5 will automatically learn and autonomously determine how to adjust the TBM's advance speed, providing the TBM operator with advance speed suggestions to control muck discharge.

[0040] This utility model's comprehensive monitoring equipment for preventing excessive discharge of excavated soil in shield tunnels uses a laser scanner, flow sensor, weighing device, and processor to work together to combine three types of excavated soil detection structures to accurately understand the discharge of excavated soil, thereby preventing excessive discharge, reducing construction costs, and minimizing adverse environmental impacts.

[0041] The integrated monitoring equipment for preventing over-discharge of excavated soil in shield tunnels of this invention has a simple structure, is easy to operate and maintain, and can be widely used in actual shield tunnel construction to improve construction efficiency and quality.

[0042] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A comprehensive monitoring device for preventing over-discharge of excavated soil in shield tunnels, characterized in that, include: Flow sensor, installed on the excavation conveying pipeline of shield tunnel; The soil conveyor belt has its outlet connected to the input end of the conveying pipe. A gantry frame is installed in the middle of the slag conveyor belt, and the two uprights of the gantry frame are respectively installed on opposite sides of the slag conveyor belt; A laser scanner is installed on the crossbeam of the gantry and aligned with the middle of the slag conveyor belt; A weighing device is installed between the two columns, and the pallet of the weighing device is supported in the middle of the slag conveyor belt to prevent deformation of the middle of the slag conveyor belt. It also includes a processor, which is signal-connected to the flow sensor, the laser scanner, and the weighing device; The lower part of the two columns is connected to a support beam located below the slag conveyor belt, and the weighing device is fixed on the support beam. It also includes a pressure sensor, which is installed between the weighing device and the support beam.

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