A soil pressure monitoring device for pipe jacking construction

Abstract

The utility model discloses a kind of earth pressure monitoring equipment in pipe jacking construction process, including mounting sleeve, mounting seat and vibrating wire type earth pressure sensor;The outer wall of mounting sleeve is provided with outer thread A, the top of mounting sleeve is integrally formed with the limiting block of greater diameter than mounting sleeve, clamping knob is installed in the sleeve below mounting sleeve;Mounting sleeve inner wall is provided with internal thread, the outer wall of mounting seat is provided with outer thread B, mounting seat is screwed in mounting sleeve, and outer thread B and internal thread are engaged with each other, mounting seat top is fixedly welded with mounting sleeve, vibrating wire type earth pressure sensor is detachably installed in mounting sleeve.The utility model can be quickly completed installation and disassembly, effectively improve construction efficiency and be conducive to equipment reuse, and sensor installation position can be flexibly adjusted, replace conveniently, can accurately monitor earth pressure and reduce downtime caused by sensor failure, guarantee pipe jacking construction smoothly.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking construction technology, and in particular to an earth pressure monitoring device for the pipe jacking construction process. Background Technology

[0002] Accurate monitoring of earth pressure is crucial during pipe jacking construction. With the rapid development of urban infrastructure construction, pipe jacking technology has been widely used in various underground pipeline laying projects. However, traditional earth pressure monitoring methods and equipment have many limitations.

[0003] In previous earth pressure monitoring during pipe jacking construction, the installation process of some equipment was extremely complex, requiring professionals to spend a lot of time on debugging and fixing. This not only increased construction costs but also easily led to monitoring errors due to improper installation.

[0004] Moreover, once traditional equipment is installed, the position of its sensors is difficult to adjust according to actual construction needs, and it cannot adapt well to changes in different geological conditions and construction conditions.

[0005] In addition, when a sensor malfunctions, the replacement process is often very complicated due to the limitations of the equipment structure, requiring extensive disassembly of the entire monitoring system. This significantly extends the equipment downtime and seriously affects the construction progress.

[0006] Therefore, how to provide an earth pressure monitoring device for pipe jacking construction that is easy to install, has adjustable sensor positions, and is easy to replace is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] One objective of this invention is to provide an earth pressure monitoring device for pipe jacking construction. This invention allows for rapid installation and disassembly, effectively improving construction efficiency and facilitating equipment reuse. Furthermore, the sensor installation position can be flexibly adjusted and easily replaced. It can accurately monitor earth pressure and reduce downtime caused by sensor failure, ensuring the smooth progress of pipe jacking construction.

[0008] An earth pressure monitoring device for pipe jacking construction according to an embodiment of the present utility model includes an installation sleeve, an installation base, and a vibrating wire earth pressure sensor.

[0009] The outer wall of the mounting sleeve is provided with an external thread A, the top of the mounting sleeve is integrally formed with a limiting block with a diameter larger than that of the mounting sleeve, and a clamping knob is fitted and installed below the mounting sleeve.

[0010] The inner wall of the mounting sleeve is provided with an internal thread, and the outer wall of the mounting base is provided with an external thread B. The mounting base is screwed into the mounting sleeve, and the external thread B and the internal thread mesh with each other. A mounting sleeve is fixedly welded to the top of the mounting base, and a vibrating wire earth pressure sensor is detachably installed inside the mounting sleeve.

[0011] Furthermore, the mounting sleeve has through-holes on both sides, and bolts are screwed into the through-holes. The bolts pass through the mounting sleeve and abut against the outer wall of the vibrating wire earth pressure sensor.

[0012] Furthermore, a support rod is fixedly installed at the bottom of the mounting base, and handles are fixedly welded to both sides of the bottom of the support rod.

[0013] Furthermore, a through hole is provided on one side of the mounting base, through which the wire of the vibrating wire earth pressure sensor passes.

[0014] Furthermore, the vibrating wire earth pressure sensor is fixedly installed in the mounting sleeve by bolts, and the force-bearing surface of the vibrating wire earth pressure sensor faces upward.

[0015] Furthermore, the outer wall of the clamping knob is provided with several sets of anti-slip grooves.

[0016] Furthermore, the inner wall of the clamping knob is provided with threads, and the clamping knob is screwed onto the mounting sleeve through the engagement of its inner wall threads with the outer thread A.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model utilizes the cooperation between the external thread A on the outer wall of the mounting sleeve and the clamping knob to allow the clamping knob to be easily turned to clamp the pipe wall, achieving initial fixation of the equipment. The mounting base is screwed into the inner thread of the mounting sleeve through the external thread B on its outer wall. The operator can easily screw the mounting base into the mounting sleeve to a suitable height using the handle on the support rod at the bottom of the mounting base. This allows the installation position of the vibrating wire earth pressure sensor to be precisely adjusted according to the specific needs and actual working conditions of the pipe jacking construction. The entire installation process requires no complicated tools or cumbersome operations, significantly reducing the installation difficulty, effectively saving manpower and time costs, and improving construction efficiency.

[0019] 2. This utility model allows for quick disassembly of the equipment by loosening the clamping knob to detach it from the jacking pipe wall and then unscrewing the mounting base from the mounting sleeve. The operation is simple and easy, facilitating the reuse or subsequent processing of the equipment. The threaded connection between the mounting base and the mounting sleeve has good reversibility. When the jacking pipe construction is completed or the equipment needs maintenance or relocation, disassembly can be completed simply by reversing the screwing of the corresponding parts.

[0020] 3. The design of the screw holes and bolts that pass through both sides of the mounting sleeve makes it extremely convenient to fix and disassemble the vibrating wire earth pressure sensor in the mounting sleeve. When the sensor malfunctions or needs to be upgraded, simply loosen the bolts to remove the sensor from the mounting sleeve, then quickly replace it with a new sensor and tighten the bolts to restore the normal monitoring function of the equipment. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a front view structural diagram of an earth pressure monitoring device for pipe jacking construction proposed in this utility model;

[0023] Figure 2 This is a bottom view structural diagram of an earth pressure monitoring device for pipe jacking construction proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the disassembly structure of the mounting base for an earth pressure monitoring device during pipe jacking construction proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the bolt disassembly structure of an earth pressure monitoring device for pipe jacking construction proposed in this utility model.

[0026] In the diagram: 1. Mounting sleeve; 2. Limiting block; 3. Clamping knob; 4. External thread A; 5. Support rod; 6. Handle; 7. Internal thread; 8. Mounting base; 9. Mounting sleeve; 10. Bolt; 11. Vibrating wire earth pressure sensor; 12. Wire hole; 13. External thread B; 14. Screw hole; 15. Anti-slip groove. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] refer to Figure 1 An earth pressure monitoring device for pipe jacking construction includes an installation sleeve 1, an installation base 8, and a vibrating wire earth pressure sensor 11.

[0029] The outer wall of the mounting sleeve 1 is provided with an external thread A4. The top of the mounting sleeve 1 is integrally formed with a limiting block 2 with a diameter larger than that of the mounting sleeve 1. A clamping knob 3 is fitted and installed below the mounting sleeve 1.

[0030] The clamping knob 3 has a threaded inner wall, and the clamping knob 3 is screwed onto the mounting sleeve 1 through the inner wall thread and the outer thread A4.

[0031] Secondly, the outer wall of the clamping knob 3 is provided with several sets of anti-slip grooves 15; the design of the anti-slip grooves 15 greatly facilitates the operation of the clamping knob 3 by the operator when installing or adjusting the equipment.

[0032] In this embodiment, the installation sleeve 1 can be inserted into the pre-drilled hole of the pipe from the outside in. Then, the operator can apply torque more easily through close contact between his hand and the anti-slip groove 15, and accurately control the clamping knob 3 to screw in or out on the installation sleeve 1. This allows the clamping knob 3 to stably apply a suitable clamping force to the pipe wall of the jacking pipe, ensuring that the entire monitoring equipment will not be displaced or loosened due to soil pressure, vibration or other factors during the pipe jacking construction process, thus ensuring the accuracy and reliability of the monitoring data.

[0033] refer to Figure 1-3 The inner wall of the mounting sleeve 1 is provided with an internal thread 7, and the outer wall of the mounting seat 8 is provided with an external thread B13. The mounting seat 8 is screwed into the mounting sleeve 1, and the external thread B13 and the internal thread 7 mesh with each other. The top of the mounting seat 8 is fixedly welded with a mounting sleeve 9, and a vibrating wire earth pressure sensor 11 is detachably installed in the mounting sleeve 9.

[0034] Among them, the bottom of the mounting base 8 is fixedly installed with a support rod 5, and handles 6 are fixedly welded to both sides of the bottom of the support rod 5.

[0035] In this embodiment, the handle 6 provides a convenient operating point for the installation and maintenance of the equipment. When the mounting base 8 is screwed into the mounting sleeve 1, the operator can hold the handle 6 to stably control the rotation direction and force of the mounting base 8, so that it can accurately connect with the internal thread 7 of the mounting sleeve 1. The height position of the mounting base 8 in the mounting sleeve 1 can be flexibly adjusted according to the actual monitoring needs, thereby determining the optimal monitoring position of the vibrating wire earth pressure sensor 11. At the same time, when it is necessary to disassemble or repair the equipment, the handle 6 also makes it easy to unscrew the mounting base 8 out of the mounting sleeve 1.

[0036] refer to Figure 1-4 The mounting sleeve 9 has screw holes 14 through both sides, and bolts 10 are screwed into the screw holes 14. After the bolts 10 pass through the mounting sleeve 9, they abut against the outer wall of the vibrating wire earth pressure sensor 11.

[0037] Among them, a wire hole 12 is provided through one side of the mounting base 8, and the wire of the vibrating wire earth pressure sensor 11 passes through the wire hole 12.

[0038] Secondly, the vibrating wire earth pressure sensor 11 is fixedly installed in the mounting sleeve 9 by bolts 10, and the force-bearing surface of the vibrating wire earth pressure sensor 11 faces upward.

[0039] In this embodiment, the fixing method of the bolt 10 to the vibrating wire earth pressure sensor 11 ensures the stability of the sensor within the mounting sleeve 9. In the complex environment of pipe jacking construction, such as soil compression and pipe jacking vibration, the bolt 10 can effectively prevent the vibrating wire earth pressure sensor 11 from being displaced or shaking due to external forces, ensuring that it is always in the correct monitoring position to accurately sense changes in earth pressure. The wire hole 12 provides a safe and orderly lead-out path for the sensor's wires, avoiding the wires from getting tangled inside the equipment or being squeezed or worn by other components, ensuring that the monitoring data can be stably and reliably transmitted to the external data acquisition and analysis system.

[0040] Working principle: First, the installation sleeve 1 is precisely placed into the pre-drilled installation hole in the jacking pipe wall. At this time, the limiting block 2 at the top of the installation sleeve 1 is tightly fitted with the outer side of the jacking pipe wall. The limiting block 2 not only plays a preliminary positioning role, but also effectively prevents the entire monitoring equipment from being over-inserted into the jacking pipe, ensuring the accuracy and stability of its installation position. Next, the operator uses the anti-slip groove 15 on the outer wall of the clamping knob 3 to easily grasp and turn the clamping knob 3. Since the inner thread of the clamping knob 3 is engaged with the outer thread A4 of the installation sleeve 1, as the clamping knob 3 is rotated, it will move upward along the installation sleeve 1, thereby tightly clamping the jacking pipe wall. Subsequently, the operator holds the handle 6 on the bottom support rod 5 of the mounting base 8 and screws the mounting base 8 into the installation sleeve. Inside the sleeve 1, the mounting seat 8 can be smoothly adjusted in height within the sleeve 1 by precisely engaging the internal thread 7 on the inner wall of the sleeve 1 with the external thread B13 on the outer wall of the mounting seat 8. This adjustment is made until the appropriate height is reached according to the actual monitoring requirements. After carefully placing the vibrating wire earth pressure sensor 11 inside the mounting sleeve 9, the bolts 10 in the screw holes 14 on both sides of the mounting sleeve 9 are tightened, allowing the bolts 10 to penetrate the mounting sleeve 9 and firmly abut against the outer wall of the vibrating wire earth pressure sensor 11. This fixing method ensures that the vibrating wire earth pressure sensor 11 will not shift, shake, or loosen within the mounting sleeve 9 due to various complex working conditions during pipe jacking construction, maintaining a precise monitoring position and guaranteeing the reliability and accuracy of the monitoring data. When the surrounding soil generates pressure due to its own weight, the disturbance caused by pipe jacking, etc., and this pressure acts on the force-bearing surface of the vibrating wire earth pressure sensor 11, according to the working principle of the vibrating wire sensor, the vibrating wire inside the sensor will undergo corresponding tensile or compressive deformation, resulting in a change in its vibration frequency. This change in vibration frequency has a specific, pre-calibrated mathematical relationship with the magnitude of the earth pressure acting on the sensor. For example, through a series of precise laboratory calibration tests and field calibration work, a corresponding function model between the vibration frequency value and the earth pressure value has been established. During the pipe jacking construction process, the vibrating wire earth pressure sensor 11 senses the earth pressure in real time and generates a corresponding change in vibration frequency. The wire on one side of the sensor passes through the inside of the mounting base 8. The wiring holes 12 are systematically led out and connected to an external dedicated data acquisition system. This system accurately collects vibration frequency data from the sensors according to set time intervals or trigger conditions. Based on a pre-established mathematical model, it quickly converts this vibration frequency data into corresponding earth pressure values. These earth pressure values ​​are recorded and stored in real time and can be further analyzed and plotted using data processing software. This visually displays the changes in earth pressure at different stages and locations during pipe jacking construction. Construction and technical personnel can use this monitoring data to understand the distribution and variation patterns of soil pressure around the pipe jacking in a timely and accurate manner, thereby making reasonable adjustments to the pipe jacking construction parameters to ensure the safety and quality of the construction.Effectively prevents engineering accidents such as pipe jacking deformation, collapse, and surrounding soil settlement that may be caused by abnormal earth pressure.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An earth pressure monitoring device for pipe jacking construction, characterized in that, Includes a mounting sleeve (1), a mounting base (8), and a vibrating wire earth pressure sensor (11); The outer wall of the mounting sleeve (1) is provided with an external thread A (4), the top of the mounting sleeve (1) is integrally formed with a limiting block (2) with a diameter larger than that of the mounting sleeve (1), and a clamping knob (3) is fitted and installed below the mounting sleeve (1). The inner wall of the mounting sleeve (1) is provided with an internal thread (7), and the outer wall of the mounting base (8) is provided with an external thread B (13). The mounting base (8) is screwed into the mounting sleeve (1), and the external thread B (13) and the internal thread (7) mesh with each other. The top of the mounting base (8) is fixedly welded with a mounting sleeve (9), and a vibrating wire earth pressure sensor (11) is detachably installed in the mounting sleeve (9).

2. The earth pressure monitoring device for pipe jacking construction according to claim 1, characterized in that, The mounting sleeve (9) has through holes (14) on both sides, and bolts (10) are screwed into the holes (14). The bolts (10) pass through the mounting sleeve (9) and abut against the outer wall of the vibrating wire earth pressure sensor (11).

3. The earth pressure monitoring device for pipe jacking construction according to claim 1, characterized in that, The mounting base (8) is fixedly mounted with a support rod (5) at its bottom, and handles (6) are fixedly welded to both sides of the bottom of the support rod (5).

4. The earth pressure monitoring device for pipe jacking construction according to claim 1, characterized in that, The mounting base (8) has a through hole (12) on one side, through which the wire of the vibrating wire earth pressure sensor (11) passes.

5. The earth pressure monitoring device for pipe jacking construction according to claim 2, characterized in that, The vibrating wire earth pressure sensor (11) is fixedly installed in the mounting sleeve (9) by bolts (10), and the force-bearing surface of the vibrating wire earth pressure sensor (11) faces upward.

6. The earth pressure monitoring device for pipe jacking construction according to claim 1, characterized in that, The clamping knob (3) has several sets of anti-slip grooves (15) around its outer wall.

7. The earth pressure monitoring device for pipe jacking construction according to claim 1, characterized in that, The clamping knob (3) has a threaded inner wall, and the clamping knob (3) is screwed onto the mounting sleeve (1) through the inner wall thread and the outer thread A (4).

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