Embedded type shield segment multi-parameter monitoring device

Abstract

The utility model discloses a multi-parameter monitoring device for an embedded shield segment. The multi-parameter monitoring device comprises an earth pressure and osmotic pressure integrated monitoring module, a steel bar stress monitoring module, an equipment bin and a mounting platform, a wireless transmission module, a vibration monitoring module and a power supply module are arranged in the equipment bin; the mounting platform and the equipment bin are fixed on a shield segment reinforcement cage; the soil pressure and osmotic pressure integrated monitoring module is arranged on the mounting platform in a height-adjustable manner; the soil pressure and osmotic pressure integrated monitoring module is used for monitoring the osmotic pressure around the shield segment and the soil pressure. According to the utility model, the earth pressure sensor, the osmotic pressure sensor, the vibration sensor and the steel bar stress sensor are integrated, so that key parameters such as internal stress, earth pressure, osmotic pressure and vibration of the shield segment can be comprehensively monitored in real time, potential safety hazards can be timely found and pre-warned, and the safety and reliability of shield construction are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel engineering multi parameter monitoring technical field especially is involved in a kind of buried mode shield segment multi parameter monitoring device. BACKGROUND

[0002] Shield tunnel engineering occupies an important position in modern urbanization process.As an advanced construction technology, shield tunnel forms the wall of tunnel by constructing segment structure around the tunnel, and has been widely used in urban underground traffic construction. However, the tunnel construction environment is complex, so it is necessary to monitor and analyze the key parameters such as stress change of shield segment, soil pressure change, seepage pressure change and vibration.

[0003] At present, the monitoring method of shield segment mainly relies on some simple sensing devices to monitor the surface of segment. Although these methods can provide certain data support, there are still significant limitations, such as limited installation position, easy to be affected by external interference, incomplete monitoring data and so on. In addition, for key parameters such as soil pressure and seepage pressure on the soil surface, traditional monitoring methods are difficult to cover the ideal range and cannot achieve the required high precision. These technical limitations are particularly evident in complex geological conditions and high-risk engineering environment.

[0004] Therefore, it is necessary to design a buried mode shield segment multi parameter monitoring device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiency of prior art, and proposes a buried mode shield segment multi parameter monitoring device.

[0006] The technical scheme of the utility model is: a buried mode shield segment multi parameter monitoring device, comprising a soil pressure and seepage pressure integrated monitoring module, a steel stress monitoring module, a device bin and a mounting platform; the device bin is provided with a wireless transmission module, a vibration monitoring module and a power supply module; the mounting platform and the device bin are fixed on the shield segment reinforcement cage; the soil pressure and seepage pressure integrated monitoring module is adjustably arranged on the mounting platform; the soil pressure and seepage pressure integrated monitoring module is used for monitoring the seepage pressure and soil pressure around the shield segment; the steel stress monitoring module is arranged on the steel of the shield segment reinforcement cage, and is used for monitoring the stress of the steel of the shield segment reinforcement cage; the vibration monitoring module is used for monitoring the vibration frequency of the shield segment reinforcement cage; the power supply module supplies power for the wireless transmission module, the vibration monitoring module, the soil pressure and seepage pressure integrated monitoring module and the steel stress monitoring module; the wireless transmission module is used for transmitting the data monitored by each module in real time.

[0007] The mounting platform is mounted in the shield segment reinforcement cage through four hooks fixed to the shield segment reinforcement cage, and the mounting platform is fixed to the hooks by welding.

[0008] The equipment bin is mounted in the shield segment reinforcement cage through two mounting columns fixed to the shield segment reinforcement cage, and the equipment bin is fixed to the mounting columns by welding.

[0009] The mounting columns are provided with anti-skid sleeves at both ends, and the mounting columns provided with the anti-skid sleeves are bound to the shield segment reinforcement cage by steel wires.

[0010] The earth pressure and seepage pressure integrated monitoring module comprises a protective shell and earth pressure sensors and seepage pressure sensors arranged in the protective shell; an adjusting platform is arranged above the mounting platform; the protective shell is arranged on the adjusting platform; and the adjusting platform is mounted on the mounting platform through a plurality of adjusting screws.

[0011] The earth pressure sensors are arranged below the middle supporting column of the protective shell and are composed of a plurality of cylinders and are internally provided with sensitive elements for sensing the change of soil pressure; the seepage pressure sensors are arranged on one side of the earth pressure sensors and are provided with filter cores above the seepage pressure sensors to prevent impurities from entering.

[0012] The bottom of the equipment bin is detachably connected with an antenna port.

[0013] The protective shell is made of stainless steel and is subjected to electroplating treatment to increase the surface roughness of the protective shell; a plurality of supporting columns are arranged in the protective shell, and epoxy resin glue is injected into the protective shell.

[0014] The reinforcement stress monitoring module comprises an asymmetric protective shell and reinforcement stress sensors; the protective shell is internally provided with clamping blocks for clamping the reinforcement of the shield segment reinforcement cage; and the reinforcement stress sensors are fixed to the clamping blocks.

[0015] An expansion waterstop is arranged between the reinforcement stress monitoring module and the connecting surface of the reinforcement of the shield segment reinforcement cage.

[0016] By adopting the above technical scheme, the utility model has the following beneficial effects: the utility model integrates earth pressure sensors, seepage pressure sensors, vibration sensors and reinforcement stress sensors, can monitor key parameters such as the internal stress of the shield segment, earth pressure, seepage pressure and vibration in real time and comprehensively, helps to discover and warn potential safety hazards in time, and improves the safety and reliability of shield construction. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail below according to specific embodiments and in combination with the drawings.

[0018] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail below according to specific embodiments and in combination with the drawings.Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the utility model after removing the shield segment reinforcement cage.

[0020] Figure 3 It is a structural schematic diagram of the utility model soil pressure and seepage pressure integrated monitoring module.

[0021] Figure 4 It is a structural schematic diagram of the utility model steel stress monitoring module.

[0022] Figure 5 It is a structural schematic diagram of the utility model equipment bin.

[0023] The label in the drawing is:

[0024] Soil pressure and seepage pressure integrated monitoring module 1, protective shell 1-1, soil pressure sensor 1-2, seepage pressure sensor 1-3, adjusting platform 1-4, adjusting screw 1-5, steel stress monitoring module 2, equipment bin 3, installation platform 4, wireless transmission module 5, vibration monitoring module 6, power supply module 7, shield segment reinforcement cage 8, drag hook 9, mounting column 10, anti-skid sleeve 11, antenna port 12. Specific implementation

[0025] (Example 1)

[0026] See Figure 1 The embedded shield segment multi-parameter monitoring device of the embodiment comprises a soil pressure and seepage pressure integrated monitoring module 1, a steel stress monitoring module 2, an equipment bin 3 and an installation platform 4; the equipment bin 3 is internally provided with a wireless transmission module 5, a vibration monitoring module 6 and a power supply module 7; the installation platform 4 and the equipment bin 3 are fixed on the shield segment reinforcement cage 8; the soil pressure and seepage pressure integrated monitoring module 1 is adjustably arranged on the installation platform 4; the soil pressure and seepage pressure integrated monitoring module 1 is used for monitoring the seepage pressure and soil pressure around the shield segment; the steel stress monitoring module 2 is arranged on the steel of the shield segment reinforcement cage 8 and is used for monitoring the stress of the steel of the shield segment reinforcement cage 8; the vibration monitoring module 6 is used for monitoring the vibration frequency of the shield segment reinforcement cage 8; the power supply module 7 supplies power to the wireless transmission module 5, the vibration monitoring module 6, the soil pressure and seepage pressure integrated monitoring module 1 and the steel stress monitoring module 2; the wireless transmission module 5 is used for transmitting the data monitored in real time by each module. As a preferred, the wireless transmission module adopts NB-IoT wireless transmission, realizes efficient data wireless transmission, effectively reduces the complexity of wiring and signal interference problems, and greatly improves the convenience of engineering implementation.

[0027] Further, in order to facilitate the installation of the installation platform 4, the installation platform 4 is installed in the shield segment reinforcement cage 8 through four hooks 9 fixed with the shield segment reinforcement cage 8, and the installation platform 4 is welded with the hooks 9.

[0028] Further, in order to facilitate the installation of the equipment bin 3, the equipment bin 3 is installed in the shield segment reinforcement cage 8 through two installation columns 10 fixed with the shield segment reinforcement cage 8, and the equipment bin 3 is welded with the installation columns 10.

[0029] Further, in order to ensure the stability of the installation of the equipment bin 3, the two ends of the installation column 10 are each provided with an anti-skid sleeve 11; the installation column 10 provided with the anti-skid sleeve 11 is bound to the shield segment reinforcement cage 8 by steel wire.

[0030] Further, the soil pressure and seepage pressure integrated monitoring module 1 comprises a protective shell 1-1 and soil pressure sensors 1-2 and seepage pressure sensors 1-3 arranged in the protective shell 1-1; an adjusting platform 1-4 is arranged above the installation platform 4; the protective shell 1-1 is arranged on the adjusting platform 1-4; the adjusting platform 1-4 is installed on the installation platform 4 through a plurality of adjusting screws 1-5, and by adjusting the adjusting screws 1-5, the soil pressure and seepage pressure integrated monitoring module 1 can adapt to the requirements of different construction environments and shield segment sizes, ensuring the accuracy and reliability of the monitoring data. In order to prevent water from entering the sensors during pouring, BW type water-swelling waterstop is wound outside the protective shell 1-1.

[0031] Further, the soil pressure sensor 1-2 is located below the middle support column of the protective shell 1-1, is composed of a plurality of cylindrical groups, is internally provided with a sensitive element for sensing soil pressure changes, and adopts a cross-shaped elastic body strain type structure, which can accurately measure the soil pressure borne by the shield segment, so as to understand the stress condition of the shield segment in underground engineering; the seepage pressure sensor 1-3 is arranged on one side of the soil pressure sensor 1-2, and a filter core 1-6 for preventing impurities from entering is arranged above the seepage pressure sensor 1-3, avoiding damage to the sensing equipment.

[0032] Further, the bottom of the equipment bin 3 is detachably connected with an antenna port 12, the antenna port 12 is also an access hole, and engineering ABS plastic is used for packaging, so as to further improve the transmission efficiency of wireless signals. In order to meet the needs of daily maintenance and later hardware upgrade, the equipment bin 3 is specially designed with a convenient access hole, that is, the antenna port 12, which is located at the end of the equipment bin 3, not only facilitates the maintenance and update of the operating personnel, but also effectively improves the transmission efficiency of wireless signals and prolongs the service life of the equipment.

[0033] Further, the protective shell 1-1 is made of 316 stainless steel material, which significantly improves the corrosion resistance of the device, and the surface of the protective shell 1-1 is treated by electroplating to increase the surface roughness, thereby enhancing the bonding strength and adhesion of the material; a plurality of support columns are arranged inside the protective shell 1-1 to enhance the stability of the overall structure, and epoxy resin glue is injected into the inside of the protective shell 1-1 to achieve the protection effect of the cable and the sensor.

[0034] Further, the steel stress monitoring module 2 comprises an asymmetric protective shell and a steel stress sensor; the protective shell is also made of 316 stainless steel material, and a clamping block for clamping the steel bars of the shield segment steel reinforcement cage 8 is arranged inside the protective shell; the steel stress sensor is fixed in the clamping block and can accurately sense the stress change of the steel bars inside the shield segment; when the steel bars are deformed due to external force, the sensor converts the elastic deformation into an electrical signal, thereby realizing accurate monitoring of the stress change.

[0035] An expansion waterstop is arranged between the steel stress monitoring module 2 and the connecting surface of the steel bars of the shield segment steel reinforcement cage 8 to prevent water from entering the steel stress monitoring module 2 during grouting.

[0036] The embedded shield segment multi-parameter monitoring device has the advantages of comprehensive monitoring, high integration, flexible installation, durability and stability, precise data transmission, and innovative monitoring mode, and provides strong technical support for the safety monitoring and data analysis of shield construction.

[0037] The above specific embodiments further illustrate the purpose, technical solutions and advantages of the utility model, and it should be understood that the above description is only for specific embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A multi-parameter monitoring device for embedded shield tunnel segments, characterized in that: The system includes an integrated earth pressure and seepage monitoring module (1), a steel reinforcement stress monitoring module (2), an equipment compartment (3), and an installation platform (4). The equipment compartment (3) is equipped with a wireless transmission module (5), a vibration monitoring module (6), and a power supply module (7). The installation platform (4) and the equipment compartment (3) are fixed to the shield tunnel segment reinforcement cage (8). The integrated earth pressure and seepage monitoring module (1) is height-adjustable on the installation platform (4). The integrated earth pressure and seepage monitoring module (1) is used to monitor the seepage pressure around the shield tunnel segment and the soil. Pressure monitoring; the steel reinforcement stress monitoring module (2) is installed on the steel reinforcement of the shield tunnel segment steel cage (8) and is used to monitor the stress of the steel reinforcement of the shield tunnel segment steel cage (8); the vibration monitoring module (6) is used to monitor the vibration frequency of the shield tunnel segment steel cage (8); the power supply module (7) supplies power to the wireless transmission module (5), the vibration monitoring module (6), the integrated soil pressure and seepage monitoring module (1) and the steel reinforcement stress monitoring module (2); the wireless transmission module (5) is used to transmit the real-time monitoring data of each module.

2. The embedded shield tunnel segment multi-parameter monitoring device according to claim 1, characterized in that: The installation platform (4) is installed in the shield tunnel segment reinforcement cage (8) by four hooks (9) that are fixed to the shield tunnel segment reinforcement cage (8), and the installation platform (4) is welded and fixed to the hooks (9).

3. The embedded shield tunnel segment multi-parameter monitoring device according to claim 1, characterized in that: The equipment compartment (3) is installed in the shield tunnel segment reinforcement cage (8) by two mounting columns (10) that are fixed to the shield tunnel segment reinforcement cage (8), and the equipment compartment (3) is welded and fixed to the mounting columns (10).

4. The embedded shield tunnel segment multi-parameter monitoring device according to claim 3, characterized in that: Both ends of the mounting column (10) are provided with anti-slip sleeves (11); the mounting column (10) with anti-slip sleeves (11) is tied to the shield tunnel segment reinforcement cage (8) by steel wire.

5. The embedded shield tunnel segment multi-parameter monitoring device according to claim 1, characterized in that: The integrated soil pressure and seepage monitoring module (1) includes a protective shell (1-1) and a soil pressure sensor (1-2) and a seepage sensor (1-3) installed inside the protective shell (1-1); an adjustment platform (1-4) is provided above the installation platform (4); the protective shell (1-1) is installed on the adjustment platform (1-4); the adjustment platform (1-4) is installed on the installation platform (4) by multiple adjustment screws (1-5).

6. The embedded shield tunnel segment multi-parameter monitoring device according to claim 5, characterized in that: The soil pressure sensor (1-2) is located below the middle support column of the protective shell (1-1), and is composed of multiple sets of cylinders. It is equipped with a sensitive element inside to sense changes in soil pressure. The seepage pressure sensor (1-3) is located on one side of the soil pressure sensor (1-2), and a filter element (1-6) is provided above it to prevent impurities from entering.

7. The embedded shield tunnel segment multi-parameter monitoring device according to claim 1, characterized in that: The bottom of the equipment compartment (3) is detachably connected to an antenna port (12).

8. The embedded shield tunnel segment multi-parameter monitoring device according to claim 5, characterized in that: The protective shell (1-1) is made of stainless steel, and the surface roughness of the protective shell (1-1) is increased by electroplating. The protective shell (1-1) has multiple support columns inside, and the protective shell (1-1) is also filled with epoxy resin.

9. The multi-parameter monitoring device for embedded shield tunnel segments according to claim 1, characterized in that: The steel reinforcement stress monitoring module (2) includes an asymmetric protective shell and a steel reinforcement stress sensor; the protective shell is provided with a clamping block for clamping the steel reinforcement of the shield tunnel segment steel cage (8); the steel reinforcement stress sensor is fixed in the clamping block.

10. The embedded shield tunnel segment multi-parameter monitoring device according to claim 1, characterized in that: An expansion sealing strip is provided between the connection surface of the steel reinforcement stress monitoring module (2) and the steel reinforcement cage (8) of the shield tunnel segment.

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