Early warning mechanism for pipe jacking construction earth surface deformation

Abstract

The utility model belongs to the technical field of underground engineering early warning, and particularly relates to a pipe jacking construction earth surface deformation early warning mechanism which comprises a power module, a deformation monitoring module, a controller and an alarm module, the deformation monitoring module, the controller and the alarm module are respectively and electrically connected with the power module, the deformation monitoring module comprises a base station and a pressure change type sensor, and the base station is provided with a groove. The pressure change type sensor is embedded in the groove, the detection end of the pressure change type sensor is connected with the ground surface above the pipe jacking construction in a pressing mode, the pressure change type sensor is in communication connection with the input end of the controller, and the alarm module is in communication connection with the output end of the controller. And early warning can be timely sent to constructors.

Description

Technical Field

[0001] This utility model relates to the field of early warning technology for underground engineering, specifically to an early warning mechanism for surface deformation during pipe jacking construction. Background Technology

[0002] With the continuous development of construction engineering, pipe jacking construction technology for utility tunnels has unparalleled advantages in terms of economy and site adaptability. As a pipeline laying technology that reduces excavation, pipe jacking works by using the thrust of the main jacking cylinder and intermediate sections to advance the tool pipe or tunneling machine from the working pit through the soil to the receiving pit, where it is then lifted. The pipeline follows closely behind the tool pipe or tunneling machine and is buried between the two pits. However, pipe jacking construction is often accompanied by surface deformation. Severe ground subsidence or heave can affect the stability and safety of surrounding buildings and even endanger the personal safety of construction workers. Therefore, failure to monitor surface deformation in a timely manner during construction can lead to serious safety accidents. Utility Model Content

[0003] This utility model addresses the problems mentioned above by designing a surface deformation early warning mechanism for pipe jacking construction, which monitors surface deformation in real time and issues timely warnings to construction personnel regarding potential risks.

[0004] To achieve the above objectives, this utility model provides a surface deformation early warning mechanism for pipe jacking construction, including a power module, a deformation monitoring module, a controller, and an alarm module, all electrically connected to the power module. The deformation monitoring module includes a base and a pressure-transformer sensor. The base has a groove, and the pressure-transformer sensor is embedded in the groove. The detection end is pressed against the ground surface above the pipe jacking construction. The pressure-transformer sensor is communicatively connected to the input end of the controller, and the alarm module is communicatively connected to the output end of the controller.

[0005] Furthermore, the deformation monitoring module also includes an ultrasonic sensor, which is fixedly connected to the base, with its detection end facing the ground surface, and the ultrasonic sensor is communicatively connected to the input end of the controller.

[0006] Furthermore, the deformation monitoring module consists of multiple sets arranged in a cross or L-shape, with adjacent bases connected by connecting rods.

[0007] Furthermore, the connecting rod is a telescopic sleeve rod with a threaded hole, and the telescopic sleeve rod is fixedly connected to the ground surface by an expansion bolt.

[0008] Furthermore, the base is Z-shaped and is fixedly connected with reinforcing ribs.

[0009] Furthermore, the alarm module includes a warning light, which is installed in the working well and is communicatively connected to the output of the controller.

[0010] Furthermore, the alarm module also includes a warning horn, which is installed in the working well and is communicatively connected to the output of the controller.

[0011] In summary, this utility model has the following advantages and beneficial technical effects:

[0012] 1. The deformation monitoring module in this utility model can monitor the deformation of the ground surface in real time and transmit the detected information to the controller in real time. After receiving the signal, if the ground surface deformation exceeds the set value, the controller will send an instruction to the alarm module to promptly remind the construction personnel in the working well to pay attention to their own safety and improve the construction safety.

[0013] 2. This utility model uses a medium-pressure variable sensor to detect the degree of ground deformation, and an ultrasonic sensor to monitor the surface cracks in real time. Multiple deformation monitoring modules work together to increase the detection range and thus improve detection accuracy. The connecting rod connects multiple bases into one unit. In addition, the extension and retraction of the connecting rod can be adjusted according to the area of ​​the pipe jacking construction to suit deformation detection in different ranges. The addition of reinforcing ribs further improves the stability and support strength of the base structure.

[0014] 3. The warning light in this utility model is used to issue a light warning to remind construction workers to pay attention to ground deformation, so as to take timely measures to ensure personal safety; the warning horn is more suitable for noisy and obstructed construction sites, and further reminds construction workers by emitting sound signals to avoid potential safety risks. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a flowchart illustrating the present invention.

[0017] Figure 2 This is a three-dimensional schematic diagram of Embodiment 1 of this utility model;

[0018] Figure 3 This is a top view of Embodiment 1 of the present utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the deformation monitoring module in this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of Embodiment 2 of this utility model.

[0021] The reference numerals in the attached figures are:

[0022] 1. Deformation monitoring module; 11. Base; 12. Piezoelectric sensor; 13. Ultrasonic sensor; 14. Connecting rod; 15. Threaded hole; 16. Reinforcing rib;

[0023] 2. Controller; 3. Alarm module; 31. Warning light; 32. Warning horn. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-5 The present invention will be described in further detail as follows:

[0025] Example 1

[0026] like Figures 1-4 As shown, this embodiment discloses a surface deformation early warning mechanism for pipe jacking construction, including a power supply module, a deformation monitoring module 1, a controller 2, and an alarm module 3. The power supply module supplies power to the deformation monitoring module 1, the controller 2, and the alarm module 3. The deformation monitoring module 1 includes a base 11 and a pressure transformer sensor 12. A groove is provided at the bottom of the base 11, and the pressure transformer sensor 12 is embedded in the groove. The detection end is pressed against the ground surface above the pipe jacking construction, and the pressure transformer sensor 12 is communicatively connected to the input end of the controller 2. The alarm module 3 is communicatively connected to the output end of the controller 2. The controller 2 is a PLC controller 2.

[0027] like Figures 2-3 As shown, the deformation monitoring module 1 also includes an ultrasonic sensor 13, which is fixedly connected to the base 11 by fastening bolts. The detection end faces the ground surface, and the ultrasonic sensor 13 is communicatively connected to the input end of the controller 2. The deformation monitoring module 1 preferably consists of five groups, which intersect each other in a cross shape. Adjacent bases 11 are connected by connecting rods 14. The connecting rods 14 are telescopic sleeves with multiple sets of threaded holes 15, and the telescopic sleeves are fixedly connected to the ground surface by expansion bolts. The Z-shaped base 11 is also equipped with reinforcing ribs 16.

[0028] like Figure 1 As shown, the alarm module 3 includes a warning light 31 and a warning horn 32 installed in the working well where the construction workers are located. The warning light 31 and the warning horn 32 are respectively connected to the output terminal of the controller 2.

[0029] The working principle of the surface deformation early warning mechanism for pipe jacking construction according to this utility model is as follows:

[0030] During use, the extension and retraction of the connecting rod 14 is adjusted according to the width range of the pipe jacking construction. The five sets of bases 11 are placed sequentially on the ground surface above the construction site. The extension and retraction length and position of the connecting rod 14 are fixed with expansion bolts. At this time, the pressure transformer sensor 12 presses against the ground surface. When the ground surface deforms, it will apply pressure to the detection end of the pressure transformer sensor 12. Therefore, the pressure transformer sensor 12 can detect the deformation of the ground surface in real time and transmit the signal to the controller 2. When the amount of ground surface deformation exceeds the threshold set by the controller 2, the controller 2 will output a signal to the alarm module 3. The abnormal situation of ground surface deformation will be reminded to the construction personnel through the illumination of the warning light 31 and the voice broadcast of the warning speaker 32. The ultrasonic sensor 13 can detect the cracks in the ground surface in real time. When the cracks in the ground surface are detected, the signal will be transmitted to the controller 2. The controller 2 receives the signal and outputs a command to the alarm module 3 to further remind the construction personnel.

[0031] Example 2

[0032] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the five sets of deformation monitoring modules 1 are arranged in an L-shape and cooperate with each other to monitor the deformation of the ground surface. All other technical features are the same.

[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A mechanism for early warning of ground surface deformation in pipe jacking construction, characterized in that: The system includes a power supply module, a deformation monitoring module, a controller, and an alarm module, all electrically connected to the power supply module. The deformation monitoring module includes a base and a pressure-transformer sensor. The base has a groove, and the pressure-transformer sensor is embedded in the groove. The detection end is pressed against the ground surface above the jacking pipe construction. The pressure-transformer sensor is communicatively connected to the input end of the controller, and the alarm module is communicatively connected to the output end of the controller.

2. The ground surface deformation early warning mechanism for pipe jacking construction according to claim 1, characterized in that: The deformation monitoring module also includes an ultrasonic sensor, which is fixedly connected to the base, with its detection end facing the ground surface, and the ultrasonic sensor is communicatively connected to the input end of the controller.

3. The ground surface deformation early warning mechanism for pipe jacking construction according to claim 1, characterized in that: The deformation monitoring module consists of multiple sets, which are arranged in a cross or L-shape, and adjacent bases are connected by connecting rods.

4. The ground surface deformation early warning mechanism for pipe jacking construction according to claim 3, characterized in that: The connecting rod is a telescopic sleeve rod with a threaded hole, and the telescopic sleeve rod is fixedly connected to the ground surface by expansion bolts.

5. The ground surface deformation early warning mechanism for pipe jacking construction according to claim 1, characterized in that: The base is Z-shaped and is fixedly connected with reinforcing ribs.

6. The ground surface deformation early warning mechanism for pipe jacking construction according to claim 1, characterized in that: The alarm module includes a warning light, which is installed in the working well and is communicatively connected to the output of the controller.

7. The ground surface deformation early warning mechanism for pipe jacking construction according to claim 6, characterized in that: The alarm module also includes a warning horn, which is installed in the working well and is communicatively connected to the output of the controller.

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