An intelligent monitoring system for construction quality of lime-soil compaction pile

Abstract

The present application belongs to the technical field of lime-soil compaction pile construction, in particular to a lime-soil compaction pile construction quality intelligent monitoring system, comprising a rammer body and a pile body lime-soil filling compaction degree real-time monitoring unit for construction. The lime-soil compaction pile construction quality intelligent monitoring system connects the Beidou positioning unit, the positioner, the resistance sensor and the operating equipment of the rammer body by using the internet technology, monitors the position of the positioner in real time through the Beidou positioning unit, converts the position of the rammer body in the pile hole from bottom to top in the ramming process, measures the resistance in real time through the electric signal of the resistance sensor, tests the compaction degree of different measuring points through on-site sampling, establishes the response relationship between the rammer body position, the electric signal of the positioner, the data of the resistance sensor and the lime-soil filling compaction degree through statistical analysis, and thus constructs a lime-soil compaction pile intelligent compaction monitoring system which is fast, accurate and real-time.

Description

Technical Field

[0001] This invention relates to the field of lime-soil compaction pile construction technology, and in particular to an intelligent monitoring system for the construction quality of lime-soil compaction piles. Background Technology

[0002] Soil compaction piles are primarily used to eliminate the collapsibility of loess. The raw materials for compaction piles include soil and lime. During the mixing process, complex chemical and physical changes occur, including hardening, ion exchange, and crystallization carbonization, ultimately forming high-modulus lime-soil piles with significant strength. Under the compaction effect of the surrounding high-strength lime-soil piles, the dry density of collapsible loess continuously increases, under-compaction is improved, saturation increases, and the void ratio decreases. The lime-soil compaction piles and the loess reinforced by them together form an artificial composite roadbed system. The bearing capacity of the lime-soil compaction piles and the composite foundation depends on the compaction effect of the lime-soil filling material within the piles.

[0003] However, existing lime-soil compaction piles require specialized equipment to drill and sample the processed piles during construction, and then conduct quality testing on the samples to determine the quality of the lime-soil compaction piles. This process is not only time-consuming and labor-intensive, but also carries the risk of damage to the lime-soil compaction piles due to improper operation, requiring subsequent repairs. Therefore, it is not convenient to conduct quality control on lime-soil compaction piles. Quality testing during construction may damage the lime-soil compaction piles, while the lack of quality testing will compromise the construction quality and thus affect the construction of lime-soil compaction piles. Summary of the Invention

[0004] To address the technical problem that existing methods for intelligently detecting the construction quality of lime-soil compaction piles are inconvenient, this invention proposes an intelligent monitoring system for the construction quality of lime-soil compaction piles.

[0005] The present invention proposes an intelligent monitoring system for the construction quality of lime-soil compaction piles, which includes a tamping hammer body and a real-time monitoring unit for the compaction degree of the lime-soil fill material in the pile. The real-time monitoring unit for the compaction degree of the lime-soil fill material in the pile includes a Beidou positioning unit, a tamping hammer modification unit and a monitoring feedback unit. The tamping hammer modification unit includes a monitoring device.

[0006] Preferably, the monitoring device is installed inside the tamping hammer body. During use, the lower end of the tamping hammer body collides with the surface of the soil between the piles, and the monitoring device collects data on the damping generated during the collision. A hoisting device is installed on the upper surface of the tamping hammer body. The lower end of the hoisting device is connected to the upper end of the tamping hammer body, and the upper end of the hoisting device is connected and fixed to the hoisting equipment of the tamping hammer body. During use, the hoisting device monitors the tilt direction of the tamping hammer body. A cleaning device is installed on the outer surface of the tamping hammer body. During use, the tamping hammer body performs a collision action, and the tamping hammer body drives the cleaning device to vibrate during the collision.

[0007] Preferably, the monitoring device includes a resistance sensor, a monitoring groove is formed on the upper surface of the hammer body, an installation block is fixedly connected to the inner bottom wall of the monitoring groove, a hinge seat is fixedly connected to the upper surface of the installation block, a bracket is hinged to the inner side wall of the hinge seat, the bracket is composed of two staggered support rods, multiple brackets are arranged in a linear array, and the adjacent ends of two adjacent brackets are hinged to each other.

[0008] The above technical solution utilizes multiple interconnected brackets to support the lower end of the resistance sensor. As the resistance sensor descends within the monitoring tank, it causes the brackets to retract downwards, while the two ends of the brackets extend outwards, thus pressing against the inner wall of the monitoring tank.

[0009] Preferably, an anti-slip pad is fixedly connected to the outer side of the hinge end of the bracket, and a mounting base is hinged to the upper end of one of the brackets. The upper surface of the mounting base is fixedly connected to the lower end surface of the resistance sensor. A threaded sleeve is fixedly connected to the upper surface of the resistance sensor. A limiting tube is sleeved on the outer surface of the threaded sleeve. A limiting strip is fixedly connected to the inner side wall of the limiting tube. A limiting groove is formed on the outer side wall surface of the threaded sleeve. The inner wall of the limiting groove is slidably connected to the surface of the limiting strip.

[0010] The above technical solution uses limiting strips and limiting grooves to hinder the rotation of the threaded sleeve, allowing the threaded sleeve to rise and fall under the action of the screw.

[0011] Preferably, a drive motor is fixedly connected to the upper inner wall of the limiting tube, a screw is fixedly connected to the output shaft surface of the drive motor, the surface of the screw is threadedly connected to the inner wall of the threaded sleeve, and an installation rod is rotatably connected to the upper surface of the limiting tube, the upper end surface of the installation rod is threadedly connected to the upper inner wall of the monitoring groove.

[0012] The above technical solution utilizes a drive motor to provide power for the rotation of the screw, thereby facilitating the control of the screw inside the hammer.

[0013] Preferably, the hoisting device includes a hoisting base, the lower surface of which is fixedly connected to the upper surface of the mounting rod, a locator is fixedly connected inside the hoisting base, an upper bolt is threadedly connected to the lower end of the hoisting base, and a plurality of upper bolts are arranged in a circular array on the surface of the hoisting base with the axis of the hoisting base as the array center, and a lower bolt is rotatably connected to the lower surface of the upper bolts.

[0014] The above technical solution uses a locator to locate the position of the hammer body and combines it with the Beidou positioning system for monitoring, which facilitates the positioning of the hammer body when it is working.

[0015] Preferably, the lower end surface of the lower bolt is threaded to the upper surface of the hammer body, and both the lower surface of the upper bolt and the upper surface of the lower bolt are provided with mounting grooves. An impact force gauge is fixedly connected to the inner bottom wall of the mounting groove, and a mounting spring is fixedly connected to the inner top wall of the mounting groove. An impact block is fixedly connected to the lower end of the mounting spring, and the impact block is located directly above the impact force gauge.

[0016] The above technical solution utilizes the impact force gauge being struck by the impact block when the ramming hammer hits the ground, thus facilitating the assessment of the construction quality of the lime-soil compaction piles by combining the impact force data with the resistance sensor.

[0017] Preferably, a friction pad is fixedly connected to the inner wall of the mounting groove, and a heat-conducting block is fixedly inserted into the surface of the friction pad. The heat-conducting block is made of copper. Multiple heat-conducting blocks are arranged in a ring array on the surface of the friction pad with the axis of the friction pad as the array center. A temperature sensor is fixedly connected to the outer surface of the friction pad, and a baffle is sleeved on the lower end surface of the lower bolt.

[0018] The above technical solution utilizes the gravity of the impact block to drive the mounting spring to tilt towards the surface of the friction pad when the hammer body is tilted. After the impact, the mounting spring drives the impact block to rub back and forth on the surface of the friction pad and generate heat, which is detected by the temperature sensor, thereby determining that there is an error in the impact data.

[0019] Preferably, the cleaning device includes a cover, the inner wall of which is sleeved with the outer surface of the hammer body, the outer surface of which is provided with a vibration groove, the vibration groove being annular, and a plurality of vibration grooves being linearly arrayed on the outer surface of the cover. A vibration ring is slidably sleeved on the inner wall surface of the vibration groove, and both the surface of the vibration ring and the surface of the cover are coated with a smooth layer, the smooth layer being made of aluminum oxide.

[0020] The above technical solution utilizes the fact that after the ramming hammer body hits the ground, the vibrating ring continues to reciprocate on the surface of the vibrating groove, causing the soil on the surface of the vibrating ring and the cover to be shaken off, thus preventing a large amount of soil from adhering to the surface of the ramming hammer body and causing the center of gravity of the ramming hammer body to change.

[0021] Preferably, a mounting plate is fixedly connected to the upper surface of the cover, the lower surface of the mounting plate is slidably connected to the upper surface of the hammer body, a fixing bolt is fixedly connected to the upper surface of the hammer body, and the upper end of the hammer body is fixedly connected to the surface of the mounting plate by the fixing bolt.

[0022] The above technical solution utilizes an installation plate to attach the cover sleeve to the surface of the hammer body, thereby facilitating the installation and fixation of the cover sleeve.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. By using Internet technology to connect the Beidou positioning unit, locator, resistance sensor, and tamping hammer body operation equipment, the Beidou positioning unit monitors the position of the locator in real time and calculates the position of the tamping hammer body in the pile hole from bottom to top during the tamping process. The resistance sensor measures the resistance in real time through electrical signals. On-site sampling tests the compaction degree at different measuring points. Through statistical analysis, the response relationship between the tamping hammer body position, the locator's electrical signal, the resistance sensor data, and the compaction degree of the lime-soil fill is established, thereby constructing a fast, accurate, and real-time monitoring system for intelligent compaction of lime-soil compaction piles.

[0025] 2. By drilling a hole inside the hammer body to create a monitoring slot, a resistance sensor is installed inside the monitoring slot. The installation height of the resistance sensor in the monitoring slot is adjusted by a drive motor and a threaded sleeve, so that the resistance sensor is close to the center of gravity of the hammer body, thereby improving the accuracy of the resistance sensor's detection data. The inner wall of the monitoring slot is connected to the resistance sensor by a bracket, so that the resistance sensor accurately transmits the vibration of the hammer body, further improving the accuracy of the resistance sensor's detection data. Thus, the monitoring device has the characteristic of being convenient for monitoring resistance data during impact.

[0026] 3. By setting up a hoisting device to connect the tamping hammer body and its operating equipment, the tamping hammer body can be stably hoisted while being connected to the hoisting base via upper and lower bolts. Impact blocks and impact force gauges are installed inside the upper and lower bolts. During tamping, the impact blocks strike the impact force gauges, and the data from the impact force gauges is used to assist in calculating the construction quality of the lime-soil compaction piles. At the same time, when the tamping hammer body tilts, the weight of the impact blocks causes the installed spring to tilt towards the surface of the friction pad. After impact, the installed spring causes the impact blocks to rub back and forth on the surface of the friction pad, generating heat, which is monitored by a temperature sensor. This facilitates the determination of whether there are errors in the impact data, thereby improving the accuracy of the intelligent monitoring system for the construction quality of lime-soil compaction piles.

[0027] 4. By installing a cleaning device on the outer surface of the tamping hammer body, and utilizing the fact that both the surface of the vibrating ring and the surface of the cover in the cleaning device are coated with a smooth layer, the probability of soil adhering to the surface of the cover and the vibrating ring is reduced through the smooth coating of alumina material. This avoids the center of gravity of the tamping hammer body changing after soil adhesion, which would affect the monitoring data of the resistance sensor, thereby improving the accuracy of the intelligent monitoring system for the construction quality of lime-soil compaction piles. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention;

[0029] Figure 2 This is a three-dimensional view of the tamping hammer body structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0030] Figure 3 This is a three-dimensional view of the mounting base structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0031] Figure 4 This is a three-dimensional view of the support structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0032] Figure 5 This is a three-dimensional view of the hoisting base structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0033] Figure 6 This is a three-dimensional view of the threaded sleeve structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0034] Figure 7 This is a three-dimensional view of the upper bolt structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0035] Figure 8This is a three-dimensional view of the impact force gauge structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0036] Figure 9 This is a three-dimensional view of the impact block structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0037] Figure 10 This is a three-dimensional view of the installation disc structure of an intelligent monitoring system for the construction quality of lime-soil compaction piles proposed in this invention.

[0038] In the diagram: 1. Rammer body; 2. Real-time monitoring unit for compaction degree of pile-soil fill material; 21. Beidou positioning unit; 22. Rammer modification unit; 23. Monitoring feedback unit; 3. Monitoring device; 31. Resistance sensor; 32. Monitoring slot; 33. Mounting block; 34. Hinge seat; 35. Bracket; 36. Anti-slip pad; 37. Mounting seat; 38. Threaded sleeve; 39. Limiting tube; 310. Limiting strip; 311. Drive motor 312. Screw; 313. Mounting rod; 4. Lifting device; 41. Lifting base; 42. Positioner; 43. Upper bolt; 44. Lower bolt; 45. Impact force gauge; 46. Mounting spring; 47. Impact block; 48. Friction pad; 49. Heat-conducting block; 410. Temperature sensor; 411. Baffle; 5. Cleaning device; 51. Cover; 52. Vibration groove; 53. Vibration ring; 54. Mounting plate; 55. Fixing bolt. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0040] Reference Figures 1-10 A smart monitoring system for the construction quality of lime-soil compaction piles includes a tamping hammer body 1 for construction and a real-time monitoring unit 2 for the compaction degree of the lime-soil fill material in the pile. The real-time monitoring unit 2 for the compaction degree of the lime-soil fill material in the pile includes a Beidou positioning unit 21, a tamping hammer modification unit 22 and a monitoring feedback unit 23. The tamping hammer modification unit 22 includes a monitoring device 3.

[0041] By using Internet technology to connect the Beidou positioning unit 21, the locator 42, the resistance sensor 31, and the operating equipment of the tamping hammer body 1, the Beidou positioning unit 21 monitors the position of the locator 42 in real time and calculates the position of the tamping hammer body 1 from bottom to top in the pile hole during the tamping process. The resistance is measured in real time through the electrical signal of the resistance sensor 31. The compaction degree of different measuring points is tested on site. Through statistical analysis, the response relationship between the position of the tamping hammer body 1, the electrical signal of the locator 42, the data of the resistance sensor 31, and the compaction degree of the lime-soil filling is established, thereby constructing a fast, accurate, and real-time monitoring system for intelligent compaction of lime-soil compaction piles.

[0042] To modify the ramming hammer body 1, a monitoring device 3 is installed inside the ramming hammer body 1. During use, the lower end of the ramming hammer body 1 collides with the surface of the soil between the piles, and the monitoring device 3 collects data on the damping generated during the collision. A lifting device 4 is installed on the upper surface of the ramming hammer body 1. The lower end of the lifting device 4 is connected to the upper end of the ramming hammer body 1, and the upper end of the lifting device 4 is connected and fixed to the lifting equipment of the ramming hammer body 1. During use, the lifting device 4 monitors the tilt direction of the ramming hammer body 1. A cleaning device 5 is installed on the outer surface of the ramming hammer body 1. During use, the ramming hammer body 1 performs a collision action, and the ramming hammer body 1 drives the cleaning device 5 to vibrate during the collision.

[0043] To install the resistance sensor 31, a monitoring groove 32 is provided on the upper surface of the hammer body 1, which includes the resistance sensor 31 in the monitoring device 3. A mounting block 33 is fixedly connected to the inner bottom wall of the monitoring groove 32, and a hinge seat 34 is fixedly connected to the upper surface of the mounting block 33. A bracket 35 is hinged to the inner side wall of the hinge seat 34. The bracket 35 consists of two staggered support rods. Multiple brackets 35 are arranged in a linear array, and the adjacent ends of two adjacent brackets 35 are hinged to each other. The lower end of the resistance sensor 31 is supported by multiple interconnected brackets 35, so that when the resistance sensor 31 descends in the monitoring groove 32, it drives the bracket 35 to retract downwards. At the same time, the two ends of the bracket 35 extend outwards and then press against the inner wall of the monitoring groove 32.

[0044] To adjust the installation height of the resistance sensor 31, an anti-slip pad 36 is fixedly connected to the outer side of the hinge end of the bracket 35. A mounting base 37 is hinged to the upper end of one of the brackets 35. The upper surface of the mounting base 37 is fixedly connected to the lower surface of the resistance sensor 31. A threaded sleeve 38 is fixedly connected to the upper surface of the resistance sensor 31. A limiting tube 39 is fitted onto the outer surface of the threaded sleeve 38. A limiting strip 310 is fixedly connected to the inner wall of the limiting tube 39. A limiting groove is formed on the outer wall surface of the threaded sleeve 38. The inner wall of the limiting groove is slidably connected to the surface of the limiting strip 310. The limiting strip 310 and the limiting... The slot obstructs the rotation of the threaded sleeve 38, causing the threaded sleeve 38 to rise and fall under the action of the screw 312. A drive motor 311 is fixedly connected to the upper inner wall of the limiting tube 39, and a screw 312 is fixedly connected to the output shaft surface of the drive motor 311. The surface of the screw 312 is threadedly connected to the inner wall of the threaded sleeve 38. An installation rod 313 is rotatably connected to the upper surface of the limiting tube 39, and the upper surface of the installation rod 313 is threadedly connected to the upper inner wall of the monitoring groove 32. The drive motor 311 provides power for the rotation of the screw 312, thereby facilitating the control of the screw 312 inside the hammer.

[0045] To hoist the ramming hammer body 1, a hoisting device 4 is provided, including a hoisting base 41. The lower surface of the hoisting base 41 is fixedly connected to the upper surface of the mounting rod 313. A locator 42 is fixedly connected inside the hoisting base 41. An upper bolt 43 is threadedly connected to the lower end of the hoisting base 41. Multiple upper bolts 43 are arranged in a circular array on the surface of the hoisting base 41 with the axis of the hoisting base 41 as the array center. Lower bolts 44 are rotatably connected to the lower surface of the upper bolts 43. The position of the ramming hammer body 1 is located using the locator 42 and monitored using the Beidou positioning system, thereby facilitating the operation of the ramming hammer body 1. The body 1 is positioned, and the lower end surface of the lower bolt 44 is threadedly connected to the upper surface of the tamping hammer body 1. The lower surface of the upper bolt 43 and the upper surface of the lower bolt 44 are both provided with mounting grooves. An impact force gauge 45 is fixedly connected to the inner bottom wall of the mounting groove, and a mounting spring 46 is fixedly connected to the inner top wall of the mounting groove. An impact block 47 is fixedly connected to the lower end of the mounting spring 46. The impact block 47 is located directly above the impact force gauge 45. When the tamping hammer body 1 hits the ground, the impact force gauge 45 is hit by the impact force block, so as to facilitate the judgment of the construction quality of the lime-soil compaction pile by using the impact force data and the resistance sensor 31.

[0046] By drilling a hole inside the hammer body 1, a monitoring slot 32 is created, and a resistance sensor 31 is installed inside the monitoring slot 32. The installation height of the resistance sensor 31 in the monitoring slot 32 is adjusted by a drive motor 311 and a threaded sleeve 38, so that the resistance sensor 31 is close to the center of gravity of the hammer body 1, thereby improving the accuracy of the data detected by the resistance sensor 31. The inner wall of the monitoring slot 32 is connected to the resistance sensor 31 by a bracket 35, so that the resistance sensor 31 accurately transmits the vibration of the hammer body 1, further improving the accuracy of the data detected by the resistance sensor 31. Thus, the monitoring device 3 has the characteristic of being convenient for monitoring resistance data during impact.

[0047] To determine whether the hammer body 1 has tilted, a friction pad 48 is fixedly connected to the inner wall of the mounting groove. A heat-conducting block 49 is fixedly inserted into the surface of the friction pad 48. The heat-conducting block 49 is made of copper. Multiple heat-conducting blocks 49 are arranged in a ring array on the surface of the friction pad 48 with the axis of the friction pad 48 as the array center. A temperature sensor 410 is fixedly connected to the outer surface of the friction pad 48. A baffle 411 is sleeved on the lower end surface of the lower bolt 44. When the hammer body 1 tilts, the gravity of the impact block 47 drives the mounting spring 46 to tilt towards the surface of the friction pad 48. After the impact, the mounting spring 46 drives the impact block 47 to rub back and forth on the surface of the friction pad 48 and generate heat, which is detected by the temperature sensor 410, thereby determining that there is an error in the impact data.

[0048] By setting up a hoisting device 4 to connect the tamping hammer body 1 and the operating equipment of the tamping hammer body 1, it is convenient to hoist the tamping hammer body 1 stably while connecting the tamping hammer body 1 and the hoisting base 41 with upper bolts 43 and lower bolts 44. An impact block 47 and an impact force gauge 45 are installed inside the upper bolts 43 and lower bolts 44. When tamping, the impact block 47 hits the impact force gauge 45, and the detection data of the impact force gauge 45 is used to assist in the calculation of the construction quality of the lime-soil compaction pile. At the same time, when the tamping hammer body 1 is tilted, the gravity of the impact block 47 drives the installed spring 46 to tilt towards the surface of the friction pad 48. After the impact, the installed spring 46 drives the impact block 47 to rub back and forth on the surface of the friction pad 48 and generate heat, which is monitored by the temperature sensor 410. This makes it easier to judge whether there is an error in the impact data, thereby improving the accuracy of the intelligent monitoring system for the construction quality of lime-soil compaction piles.

[0049] To clean the surface of the ramming hammer body 1, a cleaning device 5 is provided, including a cover 51. The inner wall of the cover 51 is sleeved with the outer surface of the ramming hammer body 1. The outer surface of the cover 51 has a vibration groove 52, which is annular. Multiple vibration grooves 52 are linearly arrayed on the outer surface of the cover 51. A vibration ring 53 is slidably sleeved on the inner wall surface of the vibration groove 52. Both the surface of the vibration ring 53 and the surface of the cover 51 are coated with a smooth layer made of aluminum oxide. This allows the vibration ring 53 to continue reciprocating on the surface of the vibration groove 52 after the ramming hammer body 1 impacts the ground. The collision causes the soil on the surface of the vibration ring 53 and the cover 51 to be shaken off, preventing a large amount of soil from adhering to the surface of the tamping hammer body 1 and causing the center of gravity of the tamping hammer body 1 to change. The upper surface of the cover 51 is fixedly connected to the mounting plate 54, and the lower surface of the mounting plate 54 is slidably connected to the upper surface of the tamping hammer body 1. The upper surface of the tamping hammer body 1 is fixedly connected to the surface of the mounting plate 54 through the fixing bolt 55. The mounting plate 54 is used to fit the cover 51 onto the surface of the tamping hammer body 1, thereby facilitating the installation and fixing of the cover 51.

[0050] By installing a cleaning device 5 on the outer surface of the tamping hammer body 1, and by using a smooth coating on the surface of the vibration ring 53 and the cover 51 of the cleaning device 5, the probability of soil adhering to the surface of the cover 51 and the vibration ring 53 is reduced. This avoids the change in the center of gravity of the tamping hammer body 1 after soil adhesion, which would affect the monitoring data of the resistance sensor 31, thereby improving the accuracy of the intelligent monitoring system for the construction quality of lime-soil compaction piles.

[0051] Working principle:

[0052] In use, the cover 51 is fitted onto the surface of the hammer body 1 through the mounting plate 54, and the mounting plate 54 is connected and fastened by the fixing bolt 55. The resistance sensor 31 is fixedly connected to the surface of the mounting base 37. The resistance sensor 31 and the bracket 35 on the surface of the mounting base 37 are inserted into the monitoring groove 32. The mounting block 33 is glued and fixed to the inner bottom wall of the monitoring groove 32. The mounting rod 313 is screwed on the inner wall of the monitoring groove 32. The baffle 411 is fitted onto the surface of the lower bolt 44. The lower bolt 44 is inserted into the mounting plate 54 and threadedly connected to the upper surface of the hammer body 1. The upper bolt 43 is threadedly connected to the lower end of the lifting base 41.

[0053] Weigh the modified hammer body 1 and measure its center of gravity. Start the drive motor 311. The output shaft of the drive motor 311 drives the screw 312 to rotate. The screw 312 pushes the threaded sleeve 38. The limiting strip 310 and the limiting groove hinder the rotation of the threaded sleeve 38. The threaded sleeve 38 rises and falls under the action of the screw 312, so that the resistance sensor 31 is close to the center of gravity of the hammer body 1.

[0054] The ramming hammer body 1 is hoisted by the hoisting seat 41. When the ramming hammer body 1 moves above the pile hole, the locator 42 records the current position parameters and then releases the ramming hammer body 1. The ramming hammer body 1 falls and collides with the inner bottom wall of the pile hole. The resistance sensor 31 records the resistance data. The impact block 47 impacts the impact force meter 45 and records the impact force data. The monitoring system analyzes the data.

[0055] When the hammer body 1 is tilted, the gravity of the impact block 47 causes the mounting spring 46 to tilt towards the surface of the friction pad 48. After the impact, the mounting spring 46 causes the impact block 47 to rub back and forth on the surface of the friction pad 48 and generate heat, which is detected by the temperature sensor 410. The monitoring system ignores the data.

[0056] After the impact, the vibration ring 53 continues to vibrate on the surface of the cover 51, and the vibration shakes off the dirt from the surface of the cover 51 and the vibration ring 53.

[0057] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lime-soil compaction pile construction quality intelligent monitoring system, comprising a rammer body (1) for construction and a pile body lime-soil filling compaction degree real-time monitoring unit (2), characterized in that: The real-time monitoring unit (2) for compaction degree of pile body lime-soil fill includes a Beidou positioning unit (21), a tamping hammer modification unit (22) and a monitoring feedback unit (23). The tamping hammer modification unit (22) includes a monitoring device (3). The monitoring device (3) is installed inside the hammer body (1). When in use, the lower end of the hammer body (1) collides with the surface of the soil between the piles. The monitoring device (3) collects data on the damping generated during the collision. The upper surface of the ramming hammer body (1) is equipped with a hoisting device (4). The lower end of the hoisting device (4) is connected to the upper end of the ramming hammer body (1). The upper end of the hoisting device (4) is connected and fixed to the hoisting equipment of the ramming hammer body (1). When in use, the hoisting device (4) monitors the tilt direction of the ramming hammer body (1). A cleaning device (5) is installed on the outer surface of the ram body (1). When in use, the ram body (1) performs a collision action, and the ram body (1) drives the cleaning device (5) to vibrate when it collides. The monitoring device (3) includes a resistance sensor (31). A monitoring groove (32) is provided on the upper surface of the hammer body (1). An installation block (33) is fixedly connected to the inner bottom wall of the monitoring groove (32). A hinge seat (34) is fixedly connected to the upper surface of the installation block (33). A bracket (35) is hinged to the inner side wall of the hinge seat (34). The bracket (35) is composed of two staggered support rods. Multiple brackets (35) are arranged in a linear array. The adjacent ends of two adjacent brackets (35) are hinged to each other. One of the brackets (35) has a mounting base (37) hinged to its upper end. The upper surface of the mounting base (37) is fixedly connected to the lower surface of the resistance sensor (31). A threaded sleeve (38) is fixedly connected to the upper surface of the resistance sensor (31). A limit tube (39) is sleeved on the outer surface of the threaded sleeve (38). The upper surface of the limiting tube (39) is rotatably connected to an installation rod (313), the upper end surface of the installation rod (313) is threadedly connected to the upper inner wall of the monitoring groove (32), the hoisting device (4) includes a hoisting seat (41), the lower surface of the hoisting seat (41) is fixedly connected to the upper surface of the installation rod (313), the lower end of the hoisting seat (41) is threadedly connected to an upper bolt (43), and the lower surface of the upper bolt (43) is rotatably connected to a lower bolt (44). The lower end surface of the lower bolt (44) is threadedly connected to the upper surface of the hammer body (1). The lower surface of the upper bolt (43) and the upper surface of the lower bolt (44) are both provided with mounting grooves. An impact force gauge (45) is fixedly connected to the inner bottom wall of the mounting groove. An installation spring (46) is fixedly connected to the inner top wall of the mounting groove. An impact block (47) is fixedly connected to the lower end of the installation spring (46). The impact block (47) is located directly above the impact force gauge (45). A friction pad (48) is fixedly connected to the inner wall of the mounting groove. A heat-conducting block (49) is fixedly inserted into the surface of the friction pad (48). The heat-conducting block (49) is made of copper. Multiple heat-conducting blocks (49) are arranged in a ring array on the surface of the friction pad (48) with the axis of the friction pad (48) as the array center. A temperature sensor (410) is fixedly connected to the outer surface of the friction pad (48). A baffle (411) is sleeved on the lower end surface of the lower bolt (44). 2.The intelligent monitoring system for construction quality of lime-soil compaction pile according to claim 1, characterized in that: An anti-slip pad (36) is fixedly connected to the outer side of the hinge end of the bracket (35), a limiting strip (310) is fixedly connected to the inner side wall of the limiting tube (39), a limiting groove is opened on the outer side wall surface of the threaded sleeve (38), and the inner wall of the limiting groove is slidably connected to the surface of the limiting strip (310). 3.The intelligent monitoring system for construction quality of lime-soil compaction pile according to claim 2, characterized in that: A drive motor (311) is fixedly connected to the upper inner wall of the limiting tube (39), and a screw (312) is fixedly connected to the output shaft surface of the drive motor (311). The surface of the screw (312) is threadedly connected to the inner wall of the threaded sleeve (38).

4. The intelligent monitoring system for construction quality of lime-soil compaction piles according to claim 3, characterized in that: The locator (42) is fixedly connected inside the jacking seat (41), and multiple upper bolts (43) are arranged in a ring array on the surface of the jacking seat (41) with the axis of the jacking seat (41) as the array center.

5. The construction quality intelligent monitoring system of lime-soil compaction pile according to claim 4, characterized in that: The cleaning device (5) includes a cover (51), the inner wall of the cover (51) is sleeved with the outer surface of the hammer body (1), the outer surface of the cover (51) is provided with a vibration groove (52), the vibration groove (52) is in the shape of a ring, and a plurality of vibration grooves (52) are distributed in a linear array on the outer surface of the cover (51). A vibration ring (53) is slidably sleeved on the inner wall surface of the vibration groove (52), and the surface of the vibration ring (53) and the surface of the cover (51) are coated with a smooth layer, the material of the smooth layer being aluminum oxide.

6. The lime-soil compaction pile construction quality intelligent monitoring system according to claim 5, characterized in that: The upper surface of the cover (51) is fixedly connected to the mounting plate (54), the lower surface of the mounting plate (54) is slidably connected to the upper surface of the hammer body (1), the upper surface of the hammer body (1) is fixedly connected to the fixing bolt (55), and the upper end of the hammer body (1) is fixedly connected to the surface of the mounting plate (54) by the fixing bolt (55).

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