A recyclable soil settlement monitoring device and measuring method

Abstract

The application discloses a recyclable soil body subsidence monitoring device and a measuring method, relates to the technical field of underground engineering measurement, and can adjust the length of a supporting body through a plurality of telescopic members which are sequentially sleeved, so that the supporting body is length-adjustable. A first measuring member and a displacement sensor are arranged in each telescopic member. A second measuring member is arranged outside the telescopic member and is detachably connected to the first measuring member in the telescopic member. In use, the second measuring member is pre-buried in a preset position of a corresponding depth of soil. The length of the supporting body is adjusted according to the depth of the soil to be measured, so that the telescopic members are corresponded to different soil depth layers, and the second measuring member of the telescopic member is connected to the pre-buried first measuring member. The subsidence amount of the soil is measured through the second measuring member. The displacement of the second measuring member drives the first measuring member to displace. The displacement of the first measuring member is measured through the displacement sensor, so that the subsidence amount of the soil at different depths can be detected in real time.

Description

Technical Field

[0001] This application relates to the field of underground engineering measurement technology, and in particular to a recyclable soil settlement monitoring device and measurement method. Background Technology

[0002] Offshore wind power, as a new type of green energy, has received strong support from the government. However, it carries the risk of uneven settlement and collapse on sites with liquefaction potential. This necessitates a monitoring device to predict site settlement in advance. However, the soil modulus is dynamically changing during liquefaction, and the degree of liquefaction varies at different depths, making multi-level settlement monitoring extremely difficult.

[0003] Current settlement monitoring technologies mainly focus on monitoring surface settlement, such as displacement gauges or benchmark measurements. These devices can acquire settlement data of surface soil after liquefaction, but this method has significant limitations in monitoring deep soil, especially for dynamic settlement during liquefaction, where existing technologies lack sufficient real-time monitoring capabilities.

[0004] Surface displacement gauges are commonly used in monitoring the settlement of building foundations after an earthquake. They can reflect the settlement of surface soil, but they usually lack sufficient sensitivity and detection capability for settlement changes in deep foundations (such as below 10 meters). In addition, surface displacement gauges often cannot capture the entire settlement process in real time, especially in the early stages of liquefaction. When pore water pressure begins to rise, the displacement gauge may fail to reflect the settlement trend caused by liquefaction in a timely manner due to data lag.

[0005] Existing devices for deep settlement monitoring are mostly fixed installations, making it difficult to flexibly adjust them at different depths or adapt to different geological environments. In practice, due to the heterogeneity of soil layers, the settlement of shallow and deep soils often differs significantly. Existing deep monitoring equipment cannot adapt to this variation and lacks adjustable designs based on different settlement requirements. Summary of the Invention

[0006] This application aims to solve one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a recyclable soil settlement monitoring device.

[0007] This application also provides a measurement method based on a recyclable soil settlement monitoring device.

[0008] According to an embodiment of the first aspect of this application, a recyclable soil settlement monitoring device is provided, comprising a support body, the support body including multiple telescopic members that are sequentially nested together to allow the length of the support body to be adjusted along the axial direction; and several sets of measuring components, each of the telescopic members being provided with the measuring component, the measuring component including a first measuring element, a second measuring element, and a displacement sensor, the first measuring element being slidably disposed inside the telescopic member and capable of sliding along the axial direction of the support body, the second measuring element being disposed outside the support body and detachably connected to the first measuring element, and the displacement sensor being used to detect the displacement change of the first measuring element.

[0009] The aforementioned recyclable soil settlement monitoring device has at least the following beneficial effects: The support body is configured with adjustable length through multiple interconnected telescopic components. Each telescopic component is equipped with a set of measuring elements. Each extended telescopic component contains a first measuring element and a displacement sensor. A second measuring element is located outside the telescopic component and is detachably connected to the first measuring element inside. In use, the second measuring element is pre-embedded at a preset position at a corresponding depth in the soil. The length of the support body is adjusted according to the soil depth to be measured, so that the extended telescopic components correspond to different soil depth layers. The second measuring element of the telescopic component is connected to the pre-embedded first measuring element. The second measuring element measures the soil settlement. The displacement of the second measuring element causes the first measuring element to displace, which is then measured by the displacement sensor. This allows for real-time detection of soil settlement displacement at different depths. This enables the soil monitoring device of this application to flexibly adjust its length according to the characteristics of soil layers at different depths. The expansion joint closest to the ground has the largest diameter to accommodate larger settlements, while the expansion joints furthest from the ground have smaller diameters to monitor smaller settlements in deeper soil layers. This enables comprehensive settlement monitoring from shallow to deep layers, filling the gap in existing technologies that cannot accurately monitor deep settlements. After the measurement is completed, the operator can remotely disconnect the first and second measuring components, and then retrieve the support structure, the first measuring component, and the displacement sensor. This design not only reduces disturbance to the soil but also lowers equipment maintenance and replacement costs, making it suitable for long-term, continuous foundation monitoring tasks.

[0010] According to the recyclable soil settlement monitoring device described in the first aspect of this application, each set of the measuring components includes two second measuring elements, one first measuring element, and one displacement sensor. One first measuring element is connected to one second measuring element, and one displacement sensor monitors one first measuring element.

[0011] According to the recyclable soil settlement monitoring device according to the first aspect of the present application, the measuring component further includes a connecting rod, and a slide is provided on the outer side of the connecting rod along the axial direction. The first measuring element is provided with a first ball, and the first ball is slidably disposed in the slide.

[0012] According to the recyclable soil settlement monitoring device of the first aspect of this application, the first measuring element further includes an electromagnet and a current controller. The current controller is used to control the on / off of the internal current of the electromagnet so that the electromagnet can generate a magnetic force to attract the second measuring element.

[0013] According to the recyclable soil settlement monitoring device of the first aspect of this application, the second measuring element includes a settlement plate and a second sphere, the second sphere being a powerful magnetic ball, and a guide structure is provided on the outside of the telescopic element so that the second sphere can slide along the axial direction of the support body, and the settlement plate is perpendicular to the support body under the action of the guide structure.

[0014] According to the recyclable soil settlement monitoring device according to the first aspect of the present application, the guide structure includes a surrounding plate, which is welded to the outside of the telescopic member to form a guide channel, and the second sphere is disposed in the guide channel.

[0015] According to the recyclable soil settlement monitoring device of the first aspect of this application, the enclosure is provided with a limiting groove from one end to the other, and the connecting part of the settlement plate passes through the limiting groove to connect to the second sphere.

[0016] According to the recyclable soil settlement monitoring device described in the first aspect of this application, a limiting structure is provided between two adjacent expansion joints. After the expansion joints are extended into place, the limiting structure restricts the relative movement of the two adjacent expansion joints.

[0017] According to the recyclable soil settlement monitoring device of the first aspect of this application, the limiting structure includes an elastic protrusion and a cavity. In two adjacent telescopic members, one telescopic member is provided with the elastic protrusion, and the other telescopic member protrudes from the inside to the outside to form the cavity.

[0018] According to an embodiment of the second aspect of this application, a measurement method based on the above-described recyclable soil settlement monitoring device is provided, comprising the following steps:

[0019] Excavate a placement pit in the soil to be measured, and pre-embed a second measuring element at a preset monitoring position on the pit wall;

[0020] Adjust the number and length of the telescopic components extending from the support body according to the depth of the placement pit and the preset position of the second measuring component, so that the first measuring component on each telescopic component corresponds one-to-one with the second measuring component.

[0021] An anchoring base is set at the bottom of the placement pit, and the support body with the adjusted length is fixed to the anchoring base so that the support body can be placed vertically.

[0022] After connecting the first measuring element to the second measuring element, backfill soil into the placement pit;

[0023] The settlement of the soil is measured by the second measuring element. The displacement of the second measuring element causes the first measuring element to move. The displacement of the first measuring element is measured by the displacement sensor, so that the settlement displacement of the soil at different depths can be detected in real time.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0026] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the support body in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the limiting structure in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the connection between the first sphere and the connecting rod in an embodiment of this application. Figure 1 ;

[0030] Figure 5 This is a schematic diagram of the connection between the first sphere and the connecting rod in an embodiment of this application. Figure 2 ;

[0031] Figure 6 This is a schematic diagram of the connection between the second measuring element and the telescopic element in an embodiment of this application. Figure 1 ;

[0032] Figure 7 This is a schematic diagram of the connection between the second measuring element and the telescopic element in an embodiment of this application. Figure 2 ;

[0033] Figure 8 This is a schematic diagram of the connection between the guide structure and the second sphere in an embodiment of this application.

[0034] Reference numerals in the attached diagram: 1. Connecting rod; 2. Monitoring host; 3. Current controller; 4. Wire; 5. Left laser displacement sensor; 6. Right laser displacement sensor; 7. Settlement plate; 8. Electromagnet; 9. Telescopic component; 10. Anchor base; 11. Anchoring platform; 12. First sphere; 13. Second sphere; 14. Elastic protrusion; 15. Cavity; 16. Enclosure plate; 17. Limiting groove. Detailed Implementation

[0035] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0036] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0038] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0039] Ground liquefaction refers to the rapid increase in pore water pressure in saturated sandy soil foundations under earthquakes or other dynamic loads, leading to a sharp decrease in the soil's shear strength and a gradual loss of its bearing capacity, resulting in significant settlement or even instability. Ground liquefaction is a common and dangerous problem in marine engineering, building construction, bridge foundations, and other infrastructure, especially in saturated sandy soils and loose sediment strata. When ground liquefaction occurs, the stability of buildings and infrastructure is severely threatened, potentially leading to foundation settlement, structural tilting, or even complete collapse.

[0040] Liquefaction-induced foundation instability not only affects the foundation itself but can also influence other physical parameters of the soil. For example, during liquefaction, the soil's compression modulus, density, and permeability coefficient all change significantly. These dynamic changes in physical properties pose a significant challenge to the accuracy of existing foundation settlement assessment methods.

[0041] To prevent disasters caused by liquefaction, engineers typically employ methods such as reinforcing the foundation or implementing protective measures to enhance its resistance to liquefaction. Simultaneously, on-site monitoring technology is widely used to assess and predict the impact of liquefaction on foundation stability. Predicting foundation liquefaction and measuring settlement are crucial aspects of liquefaction protection engineering. By accurately monitoring soil settlement, engineers can take timely measures to mitigate the risks posed by liquefaction.

[0042] However, current monitoring methods mostly focus on measuring surface settlement, lacking precise monitoring methods and devices for deep soil settlement. After liquefaction occurs, the settlement of soil layers at different depths can vary significantly, especially in large structures supported by foundations. Monitoring data of surface settlement alone is insufficient to fully understand the impact of liquefaction on the entire foundation. To improve the identification of liquefaction and the assessment of foundation settlement, there is an urgent need for a device capable of monitoring settlement at multiple depths.

[0043] Currently, the measurement methods for liquefaction sedimentation mainly focus on the monitoring of surface sedimentation. The existing technical solutions are mainly the following two: 1. Displacement gauge surface measurement method; 2. T&S method (shear stress-volume strain method).

[0044] The surface settlement measurement method using displacement gauges is commonly used to measure ground surface settlement. The displacement gauge is typically fixed to a gantry or support frame, with its probe in contact with the ground or saturated sandy soil surface. When liquefaction occurs, the soil settles, and the displacement gauge records the settlement. After liquefaction, the pore water pressure is allowed to dissipate completely before the displacement gauge reading is taken again to determine the final settlement of the foundation.

[0045] Advantages of the displacement gauge surface measurement method: simple operation, good economy, and can provide data on surface settlement after liquefaction occurs.

[0046] Limitations of the surface displacement measurement method: This method is only applicable to monitoring the settlement of surface soil and cannot monitor the settlement of deeper soil layers. Since soil liquefaction typically exhibits different settlement characteristics at different depths, surface data cannot fully reflect the actual state of the foundation, easily leading to underestimation and misjudgment of settlement.

[0047] The T&S method uses empirical formulas based on the maximum shear stress ratio and relative density to estimate the volumetric strain of the foundation soil during liquefaction. Settlement is further inferred from the estimation of volumetric changes. This method relies on the known relationship between soil shear stress and volumetric strain, and uses experiments or calculations to predict settlement after liquefaction.

[0048] The T&S method relies on empirical formulas and can calculate the settlement amount without requiring complex on-site testing. Therefore, it is suitable for quickly estimating the settlement amount in areas where testing equipment is lacking.

[0049] The T&S method is an empirical estimation method with low accuracy and large errors. The factors affecting settlement calculation are very complex, including soil type, relative density, and loading conditions. Because the formula is based on experience and assumptions, this method cannot accurately reflect actual settlement changes, especially under heterogeneous soil layers or complex geological conditions, thus limiting its accuracy.

[0050] To overcome the limitations of surface measurements, several deep settlement monitoring methods have been developed. For example, deep-buried displacement sensor systems record settlement at different depths by deploying multiple sensors underground. However, these systems are often difficult to recover, have high maintenance costs, and lack flexibility. For large-scale projects or long-term monitoring needs, existing deep settlement monitoring systems often face problems such as data transmission difficulties, equipment damage, and recovery challenges.

[0051] In addition, in existing technologies, settlement structures are usually relatively fixed and cannot be adjusted according to the settlement amount of soil at different depths, resulting in insufficient accuracy of shallow settlement and insufficient precision of deep settlement monitoring.

[0052] Other existing technologies, such as settlement towers and foundation permeability tests, are also used to monitor soil settlement. However, these methods are mainly used in laboratories or for small-scale site monitoring and are insufficient to handle the complexities of large-scale foundation settlement. In practical engineering, especially for large-scale projects with saturated sandy soil foundations, existing technologies struggle to provide sufficiently accurate and continuous monitoring data, and are also unable to reflect the dynamic settlement during soil liquefaction in real time.

[0053] Therefore, referring to Figure 1 This application provides a recyclable soil settlement monitoring device that can meet the needs of multi-level settlement monitoring, dynamic real-time monitoring, and flexible deployment and recycling.

[0054] Specifically, the recyclable soil settlement monitoring device of this application includes a support body and several sets of measuring components.

[0055] Among them, such as Figure 2As shown, the support body includes multiple telescopic components 9 that are sequentially nested together, allowing the length of the support body to be adjusted axially. The telescopic components 9 adopt a cylindrical design for easy nesting and extension. When all telescopic components 9 are extended, the diameter of the telescopic components 9 gradually decreases from one end of the support body to the other, with the outermost telescopic component 9 having the largest diameter and the innermost telescopic component 9 having the smallest diameter. Each telescopic component 9 is equipped with a measuring element.

[0056] The measuring component includes a first measuring element, a second measuring element, and a displacement sensor. The first measuring element is slidably disposed inside the telescopic member 9 and can slide along the axial direction of the support. The second measuring element is disposed outside the support and is separately connected to the first measuring element. The displacement sensor is used to detect the displacement change of the first measuring element.

[0057] In use, each extended telescopic component 9 is equipped with a first measuring component and a displacement sensor. A second measuring component is located outside the telescopic component 9 and is detachably connected to the first measuring component inside the telescopic component 9. The second measuring component is pre-embedded in a preset position at a corresponding depth in the soil. The length of the support body is adjusted according to the soil depth to be measured so that the extended telescopic component 9 corresponds to different soil depth layers. The second measuring component of the telescopic component 9 is connected to the pre-embedded first measuring component. The settlement of the soil is measured through the second measuring component. The displacement of the second measuring component causes the first measuring component to move. The displacement of the first measuring component is measured through the displacement sensor so that the settlement displacement of the soil at different depths can be detected in real time.

[0058] The soil monitoring device of this application can flexibly adjust its length according to the characteristics of soil layers at different depths. Among them, the diameter of the expansion joint 9 closest to the ground is the largest to accommodate larger settlement, while the diameter of the expansion joint 9 further away from the ground is smaller to monitor smaller settlement in deeper soil layers. This enables comprehensive settlement monitoring from shallow to deep layers, filling the gap in existing technologies that cannot accurately monitor deep settlement.

[0059] Once the measurement is complete, the operator can remotely disconnect the first and second measuring elements, and then retrieve the support, the first measuring element, and the displacement sensor. This design not only reduces disturbance to the soil but also lowers the maintenance and replacement costs of the equipment, making it suitable for long-term, continuous foundation monitoring tasks.

[0060] Most existing settlement monitoring equipment can only provide single-level data recording and cannot achieve comparative monitoring. For example, existing displacement sensors can usually only monitor displacement in a single direction and cannot provide settlement information in multiple dimensions. Due to the lack of comprehensive comparison of settlement in different directions and at different levels, existing systems struggle to accurately analyze the uniformity of foundation settlement and potential horizontal displacement. Under complex geological conditions, foundation settlement may not occur uniformly but may be accompanied by uneven settlement and lateral displacement. Existing technologies have significant shortcomings in identifying these uneven settlements or lateral displacements.

[0061] To address the aforementioned issues, in some embodiments, each set of measuring components includes two second measuring elements, one first measuring element, and one displacement sensor. The second measuring element is distributed on the outside of the support, one first measuring element is connected to one second measuring element, and one displacement sensor monitors one first measuring element.

[0062] Each expansion joint 9 is equipped with two second measuring elements, a first measuring element, and a displacement sensor to monitor soil settlement on both sides of the same expansion joint 9. The two displacement sensors are a left-side laser displacement sensor 5 and a right-side laser displacement sensor 6. This dual-displacement sensor comparative design enables real-time monitoring and comparative analysis of settlement in different directions and at different levels. The symmetrical sensor design can capture uneven settlement and potential lateral displacement within the same soil layer. This comparative data analysis helps identify potential structural problems in the foundation, improving the system's monitoring accuracy and early warning capabilities.

[0063] In some embodiments, such as Figure 1 , Figure 4 , Figure 5 As shown, the measuring assembly also includes a connecting rod 1, which is detachably mounted within the support body. A slide rail is provided on the outer side of the connecting rod 1 along the axial direction. The first measuring element is provided with a first ball 12, which is slidably mounted within the slide rail. The connecting rod 1 extends through the entire support body, forming a slide rail through two grooves, allowing the first measuring element to slide up and down, and also serving as a wiring channel for the wire 4.

[0064] The first sphere 12 works in conjunction with the slide rail to enable the first measuring element to move with the second measuring element, ensuring that the soil displacement measured by the second measuring element can be transmitted to the first measuring element so that it can be monitored by the displacement sensor.

[0065] The displacement sensors are bolted to the inside of the expansion joint 9. Each expansion joint is equipped with a pair of symmetrical displacement sensors. The main function of these sensors is to monitor the displacement of the first measuring element and identify uneven settlement or lateral displacement of the soil by comparing the sensor readings on the left and right sides.

[0066] The recyclable soil settlement monitoring device of this application also includes a monitoring host 2, which is a 2-bit digital data acquisition instrument that monitors and analyzes the data collected by the displacement sensor in real time. When discrepancies exist in the data, the system can identify uneven settlement or lateral displacement of the soil. This function helps engineers identify potential problems with the soil, such as soil tilting or uneven settlement.

[0067] In some embodiments, the first measuring element further includes an electromagnet 8 and a current controller 3. The current controller 3 controls the on / off state of the internal current of the electromagnet 8, enabling the electromagnet 8 to generate a magnetic force to attract the second measuring element. The electromagnet 8 is connected to the first sphere 12 and is also close to the inner wall of the telescopic member 9 so that the generated magnetic force can better act on the second measuring element. The current controller 3 is located outside the ground and is connected to the electromagnet 8 via a wire 4. By controlling the current, the electromagnet 8 becomes an electromagnet, which can control the generation and disappearance of the magnetic force in real time. This also facilitates the rapid separation or connection of the first and second measuring elements and the subsequent recovery of the device.

[0068] like Figure 6 and Figure 7 As shown, the second measuring component includes a settling plate 7 and a second sphere 13. The second sphere 13 is a powerful magnetic ball. A guide structure is provided on the outside of the telescopic component 9 so that the second sphere 13 can slide along the axial direction of the support. The settling plate 7 is perpendicular to the support under the action of the guide structure.

[0069] In some embodiments, the guide structure includes a surrounding plate 16, which is welded to the outside of the telescopic member 9 to form a guide channel, and a second ball 13 is disposed within the guide channel.

[0070] In some embodiments, such as Figure 8 As shown, the enclosure 16 is provided with a limiting groove 17 from one end to the other. The connecting part of the settlement plate 7 passes through the limiting groove 17 and connects to the second sphere 13. The limiting groove 17 serves as a guide and also keeps the settlement plate 7 in a horizontal state. When the device is subsequently retrieved, the support body is pulled off the ground. Because the settlement plate 7 is pre-embedded in the soil, when the support body leaves the ground, the settlement plate 7 takes the second sphere 13 with it and leaves the guiding structure.

[0071] When the soil settles, the settlement plate 7 moves vertically, which in turn causes the second sphere 13 to move vertically within the guide channel. Since the electromagnet 8 is connected to the second sphere 13 by magnetic force and the first sphere 12 is slidably connected to the connecting rod 1, the movement of the settlement plate 7 can be converted into the movement of the electromagnet 8. The settlement of the soil can then be monitored by the displacement sensor.

[0072] Specifically, the electromagnet 8 is powered as an electromagnet and can be paired with the second sphere 13. In the paired state, the electromagnet 8, the first sphere 12, the second sphere 13, and the settlement plate 7 move together to form a moving whole. When the soil settles, the electromagnet 8, the first sphere 12, the second sphere 13, and the settlement plate 7 move together, and the displacement sensor detects the settlement of the first measuring element, thereby achieving the purpose of settlement measurement. In the power-off state, the electromagnet 8 loses its magnetism, the settlement plate 7 disengages, and the locking and unlocking states of the settlement plate 7 are controlled.

[0073] When retrieving the aforementioned reusable soil settlement monitoring device, after the electromagnet 8 is de-energized, the second sphere 13 is not connected to the first measuring element. The displacement sensor and support structure can be retrieved and recovered using hoisting equipment, while the settlement plate 7 of the second measuring element remains in the ground as a reference point. The recovered displacement sensor and support structure can be maintained and redeployed to other locations.

[0074] In some embodiments, such as Figure 2 and Figure 3 As shown, a limiting structure is provided between two adjacent telescopic components 9. After the telescopic component 9 extends into place, the limiting structure restricts the relative movement of the two adjacent telescopic components 9.

[0075] Specifically, the limiting structure includes an elastic protrusion 14 and a cavity 15. In two adjacent telescopic members 9, one telescopic member 9 is provided with an elastic protrusion 14, and the other telescopic member 9 protrudes from the inside out to form a cavity 15.

[0076] To prevent the telescopic component 9 from sliding accidentally during the settlement process, when two telescopic components 9 are connected, the elastic protrusion 14 of one telescopic component 9 will move to the position of the cavity 15 of the other telescopic component 9. At this time, the protrusion is no longer under pressure from the other telescopic component 9, and the elastic protrusion 14 is located in the cavity 15, thereby preventing the telescopic component 9 from continuing to move upward, ensuring that it can be stably fixed after telescopic movement and avoiding monitoring errors.

[0077] In some embodiments, this application also provides a measurement method for the above-mentioned recyclable soil settlement monitoring device, comprising the following steps:

[0078] Excavate a placement pit in the soil to be measured, and pre-embed a second measuring element at a predetermined monitoring position on the pit wall.

[0079] Adjust the number and length of the telescopic components 9 of the support body according to the depth of the placement pit and the preset position of the second measuring component, so that the first measuring component on each telescopic component 9 corresponds one-to-one with the second measuring component.

[0080] An anchoring base 10 is installed at the bottom of the placement pit, and the length-adjusted support body is fixed to the anchoring base 10 so that the support body can be placed vertically. The anchoring base 10 has a U-shaped structure with an outward-folding plate to keep the support body in a vertical position. In some embodiments, to facilitate the rapid placement of the anchoring base 10, cement is poured at the bottom of the placement pit to form an anchoring platform 11.

[0081] After the above is completed, connect the first measuring piece to the second measuring piece, and backfill soil into the placement pit to bury the support body in the placement pit and keep it in a vertical state.

[0082] The settlement of the soil is measured by the second measuring element. The displacement of the second measuring element causes the first measuring element to move. The displacement of the first measuring element is measured by the displacement sensor, so that the settlement displacement of the soil at different depths can be detected in real time.

[0083] The recyclable soil settlement monitoring device of this application can be integrated with existing remote monitoring platforms and intelligent data analysis systems. Through wireless communication technology or wired connection, real-time data can be transmitted to the monitoring center to form a complete settlement monitoring system, providing a more intelligent solution for engineering projects.

[0084] Compared with existing technologies, the recyclable soil settlement monitoring device of this application has multi-layer monitoring functions. It can be flexibly adjusted according to the settlement characteristics of soil at different depths through a telescopic structure, adapting to settlement changes of different amplitudes in shallow and deep layers, and accurately capturing settlement data at different depths.

[0085] The recyclable soil settlement monitoring device of this application can also be disconnected by electromagnetic power-off, realizing the recycling and reuse of the equipment without manual intervention, reducing equipment maintenance costs, and is particularly suitable for long-term settlement monitoring projects.

[0086] The recyclable soil settlement monitoring device of this application compares the settlement data on the left and right sides using dual displacement sensors. The product can not only monitor vertical settlement, but also identify uneven settlement and lateral displacement, thereby improving the accuracy of monitoring.

[0087] The recyclable soil settlement monitoring device of this application, through the monitoring host 2 and displacement sensor, enables the device to have an automated data analysis system, which can collect settlement data in real time, generate settlement trend reports, and automatically issue early warning signals when abnormal settlement occurs.

[0088] The recyclable soil settlement monitoring device of this application adopts a telescopic design, making the device suitable for various geological conditions. The support cylinders at different depths can be flexibly adjusted by adjusting the telescopic component 9 to adapt to the multi-level monitoring needs in complex environments.

[0089] The following are the possible application scenarios for the recyclable soil settlement monitoring device of this application:

[0090] Bridge foundation settlement monitoring: This device can be used for long-term foundation settlement monitoring of bridges, especially suitable for earthquake zones and areas with high risk of liquefaction. Through multi-level settlement monitoring and data comparison analysis, the product can identify potential uneven settlement problems in bridge foundations, issue early warnings, and prevent structural damage.

[0091] High-rise building foundation settlement monitoring: Long-term monitoring of foundation settlement is crucial for high-rise building projects. This product can capture settlement data at different depths using multi-layer sensors, providing accurate settlement trend analysis to help engineers predict foundation problems in advance and ensure the safety of the building.

[0092] Marine engineering and shore-based settlement monitoring: The product is suitable for complex marine engineering projects, capable of monitoring seabed settlement and collecting and analyzing settlement data in real time during construction. Through an automatic recovery mechanism, the equipment can be reused after completing its monitoring tasks, reducing wear and tear in the marine environment.

[0093] Monitoring during underground tunnel and subway construction: Monitoring ground settlement is crucial during the construction of underground tunnels or subways. This device can be embedded at varying depths to monitor settlement in the construction area in real time, ensuring construction safety.

[0094] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A recyclable soil settlement monitoring device, characterized in that: include The support body includes multiple telescopic components that are sequentially nested together to allow the length of the support body to be adjusted along the axial direction. When all the telescopic components are extended, the diameter of the telescopic components gradually decreases from one end of the support body to the other end. The outermost telescopic component has the largest diameter, and the innermost telescopic component has the smallest diameter. Several sets of measuring components are provided, and each of the telescopic components is provided with the measuring component. The measuring component includes a first measuring component, a second measuring component, and a displacement sensor. The first measuring component is slidably disposed inside the telescopic component and can slide along the axial direction of the support body. The second measuring component is disposed outside the support body and is separately connected to the first measuring component. The displacement sensor is used to detect the displacement change of the first measuring component. In each group of the measurement components, the number of the second measuring element, the first measuring element, and the displacement sensor is two, with one first measuring element connected to one second measuring element, and one displacement sensor monitoring one first measuring element; The first measuring element further includes an electromagnet and a current controller. The current controller is used to control the on / off state of the internal current of the electromagnet so that the electromagnet can generate a magnetic force to attract the second measuring element. The second measuring element includes a settling plate and a second sphere, the second sphere being a powerful magnetic ball. A guide structure is provided on the outside of the telescopic element so that the second sphere can slide along the axial direction of the support. The settling plate is perpendicular to the support under the action of the guide structure. The guide structure includes a surrounding plate, which is welded to the outside of the telescopic member to form a guide channel, and the second sphere is disposed within the guide channel; The enclosure is provided with a limiting groove from one end to the other, and the connecting part of the settling plate passes through the limiting groove to connect to the second sphere.

2. The recyclable soil settlement monitoring device according to claim 1, characterized in that: The measuring component further includes a connecting rod, and a slide is provided on the outer side of the connecting rod along the axial direction. The first measuring element is provided with a first ball, which is slidably disposed within the slide.

3. The recyclable soil settlement monitoring device according to claim 1, characterized in that: A limiting structure is provided between two adjacent telescopic components. After the telescopic component extends into place, the limiting structure restricts the relative movement of the two adjacent telescopic components.

4. The recyclable soil settlement monitoring device according to claim 3, characterized in that: The limiting structure includes an elastic protrusion and a cavity. In two adjacent telescopic members, one telescopic member is provided with the elastic protrusion, and the other telescopic member protrudes from the inside out to form the cavity.

5. A measurement method based on the recyclable soil settlement monitoring device according to any one of claims 1 to 4, characterized in that, Includes the following steps: Excavate a placement pit in the soil to be measured, and pre-embed a second measuring element at a preset monitoring position on the pit wall; Adjust the number and length of the telescopic components extending from the support body according to the depth of the placement pit and the preset position of the second measuring component, so that the first measuring component on each telescopic component corresponds one-to-one with the second measuring component. An anchoring base is set at the bottom of the placement pit, and the support body with the adjusted length is fixed to the anchoring base so that the support body can be placed vertically. After connecting the first measuring element to the second measuring element, backfill soil into the placement pit; The settlement of the soil is measured by the second measuring element. The displacement of the second measuring element causes the first measuring element to move. The displacement of the first measuring element is measured by the displacement sensor so that the settlement displacement of the soil at different depths can be detected in real time. After the measurement is completed, the electromagnet is de-energized to separate the first measuring element from the second measuring element, and the support, the first measuring element, and the displacement sensor are retrieved.

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