Intelligent vibration soil filling and compacting device and construction method

Abstract

The invention discloses an intelligent vibration filling and compacting device and a construction method, and relates to the technical field of road construction. In order to solve the problems that in the prior art, a soil filling and compacting device cannot accurately adjust compacting parameters under different road surface conditions and is single in function, the following technical scheme is provided: the intelligent vibration soil filling and compacting device is characterized by comprising a roller, a bulge assembly, a sensor assembly and a control assembly; a plurality of protrusion assemblies are evenly arranged on the surface of the rolling wheel and can achieve stretching and retracting of protrusions. The sensor assembly is arranged in the protruding cavity. The control assembly adjusts the extension and retraction of the bulge and the working mode of the road roller according to data fed back by the sensor assembly; the working mode can be automatically adjusted according to road surface conditions, the compaction requirements of different soil textures are met, the problem that an existing compaction device cannot accurately adjust compaction parameters is effectively solved, and the construction efficiency and quality are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction, and in particular to an intelligent vibration filling compaction device and a construction method. Background Art

[0002] With the rapid development of the economy, the construction of transportation infrastructure has achieved remarkable results. A large number of highway and high-speed railway projects continue to advance. During the construction of these transportation facilities, the compaction of fill embankments is a key link to ensure the quality and stability of roads. However, existing rollers and fill compaction equipment face many difficulties in actual construction. The fill soil quality of different sections of road varies greatly, including clay, sand, gravel, etc., and there may be complex situations such as soil stratification and inclusion of foreign objects. Existing compaction equipment has difficulty in accurately sensing these soil changes in real time, and cannot adjust the compaction method and force in a timely and accurate manner, which may cause the compacted fill to be too dense or of poor quality. In addition, existing compaction equipment relies on manual experience to adjust parameters, which is inefficient.

[0003] For example, in clay soil sections, if the compaction strength and frequency are inappropriate, it is easy to cause the soil surface to peel and the internal compaction to be insufficient; in gravel soil sections, conventional compaction methods may not be able to tightly embed the gravel, affecting the overall strength. Existing rollers or fill compaction devices have relatively single functions and poor adaptability to some special working conditions. In addition, with the continuous improvement of road construction requirements for engineering quality and efficiency, traditional single-function compaction equipment can no longer meet the needs of modern construction. Therefore, there is an urgent need for an intelligent fill compaction device that can measure the penetration resistance and inverse stiffness in real time during the compaction process, and feed it back to the control component, and can automatically adjust the working mode to improve construction efficiency and quality. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent vibrating soil filling compaction device and a construction method to solve the problems in the prior art that the soil filling compaction device cannot accurately adjust the compaction parameters under different road conditions and has a single function.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] An intelligent vibratory soil filling and compacting device comprises: a roller, a protrusion assembly, a sensor assembly, and a control assembly; a plurality of protrusion assemblies are evenly arranged on the surface of the roller, and the protrusion assemblies can realize the expansion and contraction of the protrusions; the sensor assembly is arranged in the cavity of the protrusions and is used to monitor the temperature, penetration resistance, penetration depth and local strain of the protrusions when in contact with the soil in real time; the control assembly adjusts the expansion and contraction of the protrusions and the working mode of the roller according to the data fed back by the sensor assembly.

[0007] Furthermore, the protrusion assembly includes a fixed seat, a telescopic driver and a protrusion; the telescopic driver includes a shape memory alloy drive unit and a heating unit. The shape memory alloy drive unit is a segmented mechanical telescopic mechanism, which realizes coarse adjustment and telescopic adjustment of the protrusion in the direction perpendicular to the roller; the heating unit is located at the root of the telescopic driver, and the heating unit realizes fine adjustment of small displacement of the protrusion telescopic amount by changing the temperature of the shape memory alloy drive unit. The tip of the protrusion is made of high-hardness alloy material, and the surface is covered with a tungsten carbide wear-resistant layer.

[0008] Furthermore, the sensor assembly includes a fully automatic sensor, a fiber Bragg grating sensor, an optical fiber channel, and a data transmission module; the fully automatic sensor is used to detect the temperature of the protrusion and the penetration resistance and penetration depth when pressing down on the soil; the fiber Bragg grating sensor is embedded in the inner wall of the cavity of the protrusion and arranged along the axial direction of the protrusion, and is used to monitor the local strain and temperature changes when the protrusion contacts the soil in real time. The fiber Bragg grating sensor captures the microscopic strain peak at the moment of contact between the cone tip and the soil in real time, and combines the temperature compensation algorithm to establish the three-dimensional strain distribution of the soil; and transmits the data to the control component through the data transmission module; the optical fiber channel is located at the central axis of the protrusion to facilitate the passage of the optical cable.

[0009] Furthermore, the control component is connected to the telescopic drive and the sensor component. The control component receives the penetration resistance, penetration depth, local strain data of the soil and temperature from the sensor component, uses the above data to establish a comprehensive evaluation model of soil stiffness, inversely calculates the soil stiffness according to a preset algorithm, and dynamically controls the output power of the fill compaction device and the telescopic amount of the protrusion based on the comparison between the soil stiffness and the preset compaction standard; the logic of the control component for adjusting the telescopic amount of the protrusion is mechanical coarse adjustment and temperature fine adjustment: the control component directly controls the shape memory alloy drive unit to achieve coarse adjustment and telescopic adjustment of the protrusion through a segmented mechanical structure; the control component starts the heating unit, and achieves small displacement fine adjustment of the telescopic amount of the protrusion by adjusting the temperature of the shape memory alloy drive unit.

[0010] A construction method of an intelligent vibrating soil filling compaction device, comprising:

[0011] S1. Equipment Assembly and Debugging: Correctly assemble all parts of the machine to ensure proper function. Debug the control components, input typical parameters of different soil types and corresponding standard compaction algorithms, establish the temperature-elongation relationship of the shape memory alloy drive unit, and conduct simulation tests.

[0012] S2. Enter the target compaction standard parameters into the control component, start the equipment, and as the roller rotates, the fully automatic sensor collects real-time data on the penetration resistance and penetration depth of the soil when the bulge presses down on it. The fiber Bragg grating sensor collects real-time strain distribution data at the cone tip, establishes the three-dimensional strain distribution of the soil, and analyzes the soil resistance gradient through wavelength offset. The data is then sent to the control component via the data transmission module.

[0013] S3. Dynamically adjust the working state of the protrusion: The control component calculates the soil stiffness in real time based on the penetration resistance data and temperature fed back by the sensor component through the comprehensive soil stiffness evaluation model pre-established in the control component. Compared with the preset soil stiffness, the control component achieves high-precision control through two-stage adjustment: the mechanical coarse adjustment stage, when the gap between the calculated stiffness and the preset stiffness is too large, the expansion and contraction of the protrusion is quickly adjusted through the segmented mechanical structure; the temperature fine adjustment stage: when the calculated stiffness is close to the preset stiffness, the control component starts the heating element to achieve small displacement adjustment of the protrusion.

[0014] S4. Multi-mode compaction control: The control component controls the vibration frequency and output pressure of the fill compaction device based on the comparison between the real-time soil stiffness calculated by the pre-established comprehensive soil stiffness evaluation model and the preset soil stiffness; if the calculated real-time stiffness is greater than the preset stiffness, it switches to the impact mode; if the calculated real-time stiffness is less than the preset stiffness, it switches to the segmented compaction mode.

[0015] Furthermore, the method for assembling and debugging the equipment in S1 is as follows: during assembly, ensure that the rollers are firmly installed on the machine body, and that the sensor components, control components, and telescopic drive components are correctly connected and functioning properly; debug the control components, input typical parameters of different soil types and corresponding compaction standard algorithms, including the soil stiffness threshold K 预设 , vibration frequency range, pressure range, and establish the temperature-elongation relationship of the shape memory alloy drive unit; conduct simulation tests to verify the accuracy of data acquisition of the sensor component and the response speed and accuracy of the control component to the telescopic drive and vibration device.

[0016] Furthermore, in S2, when the roller rotates, the method for the sensor component to detect the penetration resistance is as follows: the required compaction standard parameters are input into the control component, the fully automatic sensor collects the penetration resistance and penetration depth data when the bulge presses down the soil in real time, the fiber Bragg grating sensor collects the strain distribution data of the bulge cone tip in real time, establishes the three-dimensional strain distribution of the soil, and analyzes the soil resistance gradient through the wavelength offset; and sends the data to the control component through the data transmission module, and the control component calculates the stiffness and the preset stiffness threshold K according to the preset algorithm. 预设 Control the bulge.

[0017] Furthermore, in S3, if the backcalculated stiffness is greater than the preset stiffness, the control component controls the segmented telescopic driver to extend the protrusion length, thereby enhancing the degree of soil crushing; if the backcalculated stiffness is less than the preset stiffness, the control component controls the segmented telescopic driver to shorten the protrusion length until the soil stiffness backcalculated according to the preset algorithm is consistent with the preset compaction standard.

[0018] Furthermore, the control component in S4 implements a multi-mode compaction control method: Based on the penetration resistance and penetration depth feedback from the sensor component, the control component uses a preset algorithm to inversely calculate the soil stiffness and compares it with the preset compaction standard. When gravel is present in the fill, that is, when a sudden local strain change is detected based on the three-dimensional strain distribution of the soil, the control component immediately triggers the impact mode and adjusts the extension and retraction length of the protrusion to prevent damage to the probe. When the inversely calculated soil stiffness exceeds the preset compaction standard, the control component switches to the impact mode: the control component increases the vibration frequency and pressure of the device, crushing hard soil or gravel through high-frequency impact. When the soil is relatively loose, that is, the inversely calculated soil stiffness is less than the preset compaction standard, the control component switches to the segmented compaction mode: first, the static penetration stage is entered, the control component reduces the vibration frequency and pressure of the device, slowly penetrating the loose soil. After the soil is initially compacted, until the soil stiffness inversely calculated by the algorithm matches the preset compaction standard, the control component switches to the dynamic penetration stage, increasing the vibration frequency and output pressure to complete deep compaction.

[0019] The present invention has the following beneficial effects:

[0020] 1. The intelligent vibratory soil filling compaction device provided by the present invention can automatically adjust the working mode according to the road conditions and adapt to the compaction requirements of different soil types. It effectively solves the problem that the existing compaction device cannot accurately adjust the compaction parameters, and significantly improves the construction efficiency and quality.

[0021] 2. The sensor component can detect penetration resistance in real time and provide accurate data support for the control component, ensuring that the control component can make timely and accurate decisions to achieve intelligent construction.

[0022] 3. By using a fiber Bragg grating sensor to capture the microscopic strain peak at the moment of contact between the cone tip and the soil, combined with a temperature compensation algorithm, it can accurately distinguish dynamic loads such as soil hardness and gravel impact. It can also reflect the resistance gradient of soil stratification, providing high-resolution data for stiffness inversion, significantly improving the accuracy of compaction parameter adjustment under complex working conditions.

[0023] 4. The control component automatically adjusts the working status of the roller according to the data, monitors the calculated stiffness during the compaction process in real time, dynamically adjusts the bulge length, vibration frequency and pressure, and autonomously switches the compaction mode until the preset compaction standard is reached; the control component can also optimize the preset stiffness and control parameters through machine learning algorithms based on recorded historical data, improve adaptability, realize an automated and intelligent compaction process, reduce manual intervention, and lower construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2It is a schematic cross-sectional view of a projection of the present invention;

[0026] Figure 3 It is a schematic flow chart of the construction method of the present invention;

[0027] Figure 4 This is a schematic flow chart of step S3 of the construction method of the present invention;

[0028] Figure 5 This is a schematic flow chart of step S4 of the construction method of the present invention;

[0029] Figure 6 Schematic diagram of the protrusion assembly of the present invention in a retracted state;

[0030] Figure 7 Schematic diagram of the extended state of the protruding component of the present invention.

[0031] Figures 1 to 7 The reference numerals shown in the figures represent respectively: 1-roller, 2-protrusion assembly, 21-fixed seat, 221-shape memory alloy drive unit, 222-heating unit, 23-protrusion, 3-sensor assembly, 31-full-automatic sensor, 32-fiber Bragg grating sensor, 33-fiber channel, 34-data transmission module, 4-control assembly. DETAILED DESCRIPTION

[0032] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0033] Example:

[0034] As attached Figure 1 As shown, an intelligent vibratory soil filling compaction device includes a roller 1, a protrusion assembly 2, a sensor assembly 3 and a control assembly 4; wherein the protrusion assembly 2 controls the extension and contraction of the protrusion 23; the sensor assembly 3 is arranged in the cavity of the protrusion 23, and monitors the temperature, penetration resistance, penetration depth and local strain of the protrusion 23 when in contact with the soil in real time; the control assembly 4 automatically adjusts the extension and contraction of the protrusion 23 and the working mode of the roller according to the data fed back by the sensor assembly 3.

[0035] In this embodiment, the protrusion assembly 2 includes a fixed seat 21, a telescopic driver 22 and a protrusion 23; specifically, the fixed seat 21 is fixedly installed on the surface of the roller 1; the protrusion 23 is connected to the fixed seat 21 through the telescopic driver 22, and the telescopic driver 22 includes a shape memory alloy (i.e., SMA) drive unit 221 and a heating element 222; the shape memory alloy drive unit 221 is a telescopic mechanism of a segmented mechanical structure, which realizes coarse adjustment and extension of the protrusion 23 in a direction perpendicular to the roller through the segmented mechanical structure; the heating element 222 is located at the root of the telescopic driver 22, and can realize small displacement fine adjustment of the extension and contraction amount of the protrusion 23 by changing the temperature of the shape memory alloy drive unit 221. The tip of the protrusion 23 is made of high-hardness alloy material, and the surface is covered with a tungsten carbide wear-resistant layer to balance the sensor life and measurement accuracy under high-frequency impact.

[0036] In this embodiment, the sensor assembly 3 is located in the cavity of the protrusion 23; specifically, the sensor assembly 3 includes a fully automatic sensor 31, a fiber Bragg grating sensor 32, and an optical fiber channel 33 data transmission module 34; the fully automatic sensor 31 is used to detect the temperature of the protrusion 23 and the penetration resistance and penetration depth when pressing down on the soil; the fiber Bragg grating sensor 32 is embedded in the inner wall of the cavity of the protrusion 23, and the fiber Bragg grating sensor 32 is arranged axially along the protrusion 23 to monitor the local strain and temperature changes when the protrusion 23 contacts the soil in real time. It can capture the microscopic strain peak at the moment when the cone tip of the protrusion 23 contacts the soil in real time, and establish the three-dimensional strain distribution of the soil in combination with the temperature compensation algorithm; and transmit the data to the control assembly 4 through the data transmission module 34; the optical fiber channel 33 is located on the central axis of the protrusion 23 to facilitate the passage of the optical cable.

[0037] In addition, the control component 4 is connected to the telescopic driver 22 and the sensor component 3; the control component 4 receives the penetration resistance penetration depth, local soil strain data and temperature data transmitted by the sensor component 3, uses the above data to establish a comprehensive evaluation model of soil stiffness, inversely calculates the soil stiffness according to a preset algorithm, and dynamically controls the output power of the fill compaction device and the telescopic driver 22's telescopic amount of the protrusion 23 based on the comparison of the soil stiffness and the preset compaction standard; the control component 4 adjusts the telescopic amount of the protrusion 23 by mechanical coarse adjustment and temperature fine adjustment: the control component 4 directly controls the shape memory alloy drive unit 221 to achieve coarse adjustment of the protrusion 23 through a segmented mechanical structure; the control component 4 starts the heating element 222, and achieves small displacement fine adjustment of the telescopic amount of the protrusion 23 by adjusting the temperature of the shape memory alloy drive unit 221.

[0038] As attached Figure 3 As shown, a construction method of an intelligent vibrating soil filling compaction device includes the following steps:

[0039] S1. Equipment assembly and debugging: In this embodiment, the method of assembling and debugging the above equipment is as follows: during assembly, ensure that the roller 1 is firmly installed on the machine body, and the sensor component 3, control component 4, and telescopic drive 22 are correctly connected and functioning properly; debug the control component 4, input typical parameters of different soil types and corresponding compaction standard algorithms, including the soil stiffness threshold K 预设 , vibration frequency range, pressure range and establish the temperature-elongation relationship of the shape memory alloy drive unit 221, and conduct simulation tests to ensure the accuracy of data acquisition by the sensing component 3 and the response speed and accuracy of the control component 4 to the telescopic drive 22 and the vibration device.

[0040] S2. Equipment startup: The sensor assembly 3 starts detecting the penetration resistance while the roller 1 rotates. In this embodiment, the method for starting the equipment and detecting the penetration resistance while the roller 1 rotates is as follows: the required compaction standard parameters are input into the control assembly 4, the fully automatic sensor 31 collects the penetration resistance and penetration depth of the soil when the protrusion 23 presses down in real time, the fiber Bragg grating sensor 32 collects the strain distribution data of the cone tip in real time, establishes the three-dimensional strain distribution of the soil, and analyzes the soil resistance gradient through the wavelength offset; and transmits the data to the control assembly 4 through the data transmission module 34, and the control assembly 4 calculates the stiffness and the preset stiffness threshold K according to the preset algorithm. 预设 Take control.

[0041] S3, the control component 4 automatically adjusts the working state of the protrusion component 2 according to the data fed back by the sensor component 3;

[0042] As attached Figure 4 As shown, the control component 4 automatically adjusts the working state of the protrusion component 2 in the following manner: the control component 4 receives the penetration resistance data transmitted by the fully automatic sensor 31, and calculates the soil stiffness in real time through the comprehensive evaluation model of soil stiffness established in the control component 4, and compares it with the preset soil stiffness. The control component 4 achieves high-precision control by adjusting the shape memory alloy drive unit 221 and the heating element 222, as shown in the attached figure. Figure 6-7As shown, during the mechanical coarse adjustment phase, when the calculated stiffness and the preset stiffness differ significantly, the control component 4 rapidly adjusts the extension and contraction of the protrusion 23 by controlling the segmented mechanical structure to adapt to significant changes in soil stiffness. When the inversely calculated soil stiffness exceeds the preset compaction standard, the control component 4 increases the extension and contraction length of the protrusion 23 by controlling the telescopic actuator 22 to enhance soil crushing. When the inversely calculated soil stiffness is less than the preset compaction standard, the control component 4 decreases the extension and contraction length of the protrusion 23 by controlling the telescopic actuator 22. During the temperature fine adjustment phase, when the calculated stiffness approaches the preset stiffness, the control component 4 activates the heating element 222 to achieve precise actuation, utilizing the temperature-extension characteristics of the shape memory alloy drive unit 221 to achieve small displacement adjustments of the protrusion 23, ensuring compaction uniformity, until the soil stiffness inversely calculated according to the preset algorithm is consistent with the preset compaction standard.

[0043] S4, Multi-mode compaction control: as shown in the attached Figure 5 As shown, the method for the control component 4 to implement multi-mode compaction control in S4 is as follows: the control component 4 uses a preset algorithm to inversely calculate the soil stiffness based on the penetration resistance and penetration depth data fed back by the sensor component 3, and compares it with the preset compaction standard. When there is gravel in the fill, that is, when a local strain mutation (such as impact with gravel) is detected based on the three-dimensional strain distribution of the soil, the control component 4 immediately triggers the impact mode: the control component 4 increases the vibration frequency and pressure of the device, and crushes the hard soil or gravel through high-frequency impact; when the soil is relatively loose, that is, when the inversely calculated soil stiffness is less than the preset compaction standard, it switches to the segmented compaction mode: first entering the static penetration stage, the control component 4 reduces the vibration frequency and pressure of the device, slowly penetrates the loose soil, and switches to the dynamic penetration mode after the soil is initially dense (when the stiffness of the two is close), and the control component 4 increases the vibration frequency and output pressure to complete deep compaction until the set compaction standard is reached.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent vibrating soil filling compaction device, characterized in that: include: A roller (1), a protrusion assembly (2), a sensor assembly (3), and a control assembly (4); a plurality of protrusion assemblies (2) are evenly arranged on the surface of the roller (1), and the protrusion assemblies (2) can realize the expansion and contraction of the protrusion (23); the sensor assembly (3) is arranged in the cavity of the protrusion (23) and is used for real-time monitoring of the temperature, penetration resistance, penetration depth, and local strain of the protrusion (23) when in contact with the soil; the control assembly (4) adjusts the expansion and contraction of the protrusion (23) and the working mode of the roller according to the data fed back by the sensor assembly (3).

2. The intelligent vibrating soil filling compaction device according to claim 1, characterized in that: The protrusion assembly (2) comprises a fixing seat (21), a telescopic driver (22) and a protrusion (23); the telescopic driver (22) comprises a shape memory alloy driving unit (221) and a heating unit (222); the shape memory alloy driving unit (221) is a segmented mechanical telescopic mechanism, which realizes the coarse adjustment and telescoping of the protrusion (23) in a direction perpendicular to the roller; the heating unit (222) is located at the root of the telescopic driver (22); the heating unit (222) realizes the small displacement fine adjustment of the telescopic amount of the protrusion (23) by changing the temperature of the shape memory alloy driving unit (221); the tip of the protrusion (23) is made of a high-hardness alloy material, and the surface is covered with a tungsten carbide wear-resistant layer.

3. The intelligent vibrating soil filling compaction device according to claim 1, characterized in that: The sensor assembly (3) comprises a fully automatic sensor (31), a fiber Bragg grating sensor (32), an optical fiber channel (33), and a data transmission module (34); the fully automatic sensor (31) is used to detect the temperature of the protrusion (23) and the penetration resistance and penetration depth when pressing down the soil; the fiber Bragg grating sensor (32) is embedded in the inner wall of the cavity of the protrusion (23) and arranged along the axial direction of the protrusion (23) to monitor the local strain and temperature changes when the protrusion (23) contacts the soil in real time; the fiber Bragg grating sensor (32) captures the microscopic strain peak value at the moment when the cone tip contacts the soil in real time, and establishes the three-dimensional strain distribution of the soil in combination with the temperature compensation algorithm; The data is transmitted to the control component (4) via the data transmission module (34); the optical fiber channel (33) is located on the central axis of the protrusion (23) to facilitate the passage of the optical cable.

4. The intelligent vibratory soil filling compaction device according to claim 1, characterized in that: The control component (4) is connected to the telescopic driver (22) and the sensor component (3). The control component (4) receives the penetration resistance, penetration depth, soil local strain data and temperature transmitted by the sensor component (3), uses the above data to establish a soil stiffness comprehensive evaluation model, reversely calculates the soil stiffness according to a preset algorithm, and dynamically controls the output power of the fill compaction device and the telescopic amount of the protrusion (23) according to the comparison between the soil stiffness and the preset compaction standard; the logic of the control component (4) adjusting the telescopic amount of the protrusion (23) is mechanical coarse adjustment and temperature fine adjustment: the control component (4) directly controls the shape memory alloy drive unit (221) to achieve coarse adjustment of the telescopic amount of the protrusion (23) through a segmented mechanical structure; the control component (4) starts the heating unit (222) and achieves small displacement fine adjustment of the telescopic amount of the protrusion (23) by adjusting the temperature of the shape memory alloy drive unit (221).

5. A construction method of an intelligent vibrating soil filling compaction device, characterized in that: The intelligent vibratory soil filling compaction device according to claims 1 to 4 is implemented, comprising: S1. Equipment assembly and debugging: correctly assemble all parts of the machine body to ensure that all parts work properly; debug the control component (4), input typical parameters of different soil types and corresponding compaction standard algorithms, establish the temperature-elongation relationship of the shape memory alloy drive unit (221), and conduct simulation tests; S2. Input the target compaction standard parameters into the control component (4), start the equipment, and when the roller (1) rotates, the fully automatic sensor (31) collects the penetration resistance and penetration depth data of the protrusion (23) when pressing down the soil in real time; the fiber Bragg grating sensor (32) collects the strain distribution data of the cone tip in real time, establishes the three-dimensional strain distribution of the soil, and analyzes the soil resistance gradient through the wavelength offset; and sends the data to the control component (4) through the data transmission module (34); S3. Dynamically adjust the working state of the protrusion (2): the control component (4) calculates the soil stiffness in real time based on the penetration resistance data and temperature fed back by the sensor component (3) through the comprehensive soil stiffness evaluation model pre-established in the control component (4). Based on the comparison with the preset soil stiffness, the control component (4) realizes high-precision control through two-stage adjustment: the mechanical coarse adjustment stage: when the calculated stiffness is too far away from the preset stiffness, the expansion and contraction amount of the protrusion (23) is quickly adjusted through the segmented mechanical structure; the temperature fine adjustment stage: when the calculated stiffness is close to the preset stiffness, the control component (4) starts the heating element (222) to realize small displacement adjustment of the protrusion (23); S4. Multi-mode compaction control: The control component (4) controls the vibration frequency and output pressure of the fill compaction device based on the comparison between the real-time soil stiffness calculated by the pre-established soil stiffness comprehensive evaluation model and the preset soil stiffness; if the calculated real-time stiffness is greater than the preset stiffness, it switches to the impact mode; if the calculated real-time stiffness is less than the preset stiffness, it switches to the segmented compaction mode.

6. The construction method of the intelligent vibrating soil filling compaction device according to claim 5, characterized in that: The method for assembling and debugging the equipment in S1 is as follows: during assembly, ensure that the roller (1) is firmly mounted on the machine body, and the sensor component (3), the control component (4), and the telescopic drive (22) are correctly connected and function properly; debug the control component (4), input typical parameters of different soil types and corresponding compaction standard algorithms, including the soil stiffness threshold K 预设 , vibration frequency range, pressure range and the temperature-elongation relationship of the shape memory alloy drive unit (221); and conducting simulation tests to verify the accuracy of data acquisition by the sensor component (3) and the response speed and accuracy of the control component (4) to the telescopic driver (22) and the vibration device.

7. The construction method of the intelligent vibrating soil filling compaction device according to claim 5, characterized in that: In the S2, when the roller (1) rotates, the method for the sensor component (3) to detect the penetration resistance is as follows: the required compaction standard parameters are input into the control component (4), the full-automatic sensor (31) collects the penetration resistance and penetration depth data of the protrusion (23) when pressing the soil in real time, the fiber Bragg grating sensor (32) collects the strain distribution data of the cone tip of the protrusion (23) in real time, establishes the three-dimensional strain distribution of the soil, and analyzes the soil resistance gradient through the wavelength offset; and the data is sent to the control component (4) through the data transmission module (34), and the control component (4) calculates the stiffness and the preset stiffness threshold K according to the inverse calculation of the preset algorithm. 预设 The protrusion (23) is controlled.

8. The construction method of the intelligent vibrating soil filling compaction device according to claim 5, characterized in that: In S3, if the back-calculated stiffness is greater than the preset stiffness, the control component (4) controls the segmented telescopic driver (22) to extend the length of the protrusion (23) to enhance the degree of crushing of the soil; if the back-calculated stiffness is less than the preset stiffness, the control component (4) controls the segmented telescopic driver (22) to shorten the length of the protrusion (23) until the soil stiffness back-calculated according to the preset algorithm is consistent with the preset compaction standard.

9. The construction method of the intelligent vibrating soil filling compaction device according to claim 5, characterized in that: The control component (4) in S4 implements a method for multi-mode compaction control: the control component (4) performs a preset algorithm to reversely calculate the soil stiffness based on the penetration resistance and penetration depth fed back by the sensor component (3), and compares it with the preset compaction standard. When gravel exists in the fill, that is, when a local strain mutation is detected based on the three-dimensional strain distribution of the soil, the control component (4) immediately triggers the impact mode and adjusts the extension length of the protrusion (23) to avoid damage to the probe; that is, when the reversely calculated soil stiffness is greater than the preset compaction standard, the control component (4) switches to the impact mode. : The control component (4) increases the vibration frequency and pressure of the device, and crushes the hard soil or gravel through high-frequency impact; when the soil is relatively loose, that is, the inversely calculated soil stiffness is less than the preset compaction standard, it switches to the segmented compaction mode: first enter the static penetration stage, the control component (4) reduces the vibration frequency and pressure of the device, slowly penetrates the loose soil, and after the soil is initially dense, until the soil stiffness inversely calculated by the algorithm is the same as the preset compaction standard, it switches to the dynamic penetration stage, the control component (4) increases the vibration frequency and output pressure, and completes deep compaction.

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