Equipment for calculating dynamic compaction times and compaction settlement
By integrating Beidou positioning technology and Hall sensors on the strong tamping equipment, the number of hits and sinking times are calculated in real time, the problem of poor practicality of existing detection methods is solved, and efficient and convenient construction monitoring and data recording are achieved.
Patent Information
- Application Number
- CN202420398595.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-03-01
AI Technical Summary
When detecting the foundation reinforcement effect after strong tamping, the existing detection methods have disadvantages such as limited scope of application, long construction period, high cost, and weak representation, and have poor overall practicality.
A device is designed to calculate the number of times of strong tamping and sinking, using Beidou high-precision positioning technology, combined with Hall sensors and count collectors, to record and calculate parameters such as the number of times of tamping, hammer drop distance, tamp point position, and sinking changes in the tamping amount are changed in real time, without tamping and simplifying the construction process.
The equipment can achieve continuous work 24 hours a day without being affected by weather and sight, improve construction efficiency, reduce labor cost investment, and the equipment is integrated on the tamper, making it highly convenient to install and carry.
Smart Images
Figure CN222666755U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of detection equipment, in particular to a device for calculating the number of strong compaction times and the amount of compaction. Background Art
[0002] Dynamic compaction is a method of foundation reinforcement. Since the introduction of dynamic compaction technology in my country, after years of research and practice, it has been widely used in the treatment of gravel soil, sandy soil, low-saturation silt and clay soil, collapsible loess, backfill soil and other foundations to improve foundation strength, reduce soil compressibility, eliminate collapsibility or improve resistance to liquefaction, etc. Whether the foundation reinforcement effect after dynamic compaction treatment reaches the expected purpose and design requirements requires scientific and reasonable testing of the treated foundation.
[0003] At present, the detection methods include traditional plate static load test, cone dynamic penetration test, standard penetration test, geotechnical test and emerging Rayleigh wave method, ground penetrating radar method, etc.
[0004] 1. Flat plate static load test. Flat plate static load test is an in-situ test method that applies loads to the foundation step by step on a pressure plate of a certain area to measure the pressure and deformation characteristics of the foundation soil. It reflects the comprehensive characteristics of the strength and deformation of the foundation soil within the range of 1.5 to 2.0 times the diameter or width of the pressure plate under the pressure plate. This method is suitable for clay, silt, sand and gravel soil with small particle size, and is a common means of testing the strength of foundation soil. The equipment used consists of three parts: a pressure plate, a pressure-stabilizing loading device and a settlement observation device. Gradual loading, the settlement is measured once at a certain time interval after each loading. When the test end conditions are met, the loading is stopped and the test is ended. According to the test, the bearing capacity characteristic value fak and deformation modulus Eo of the foundation soil can be determined.
[0005] 2. Dynamic cone penetration test. The dynamic cone penetration test uses a drop hammer of a certain mass to drive a standard cone-shaped probe into the soil layer at a certain height of free fall. The properties of the soil layer are determined based on the difficulty of the probe penetration. This test is suitable for sand and gravel soil. The test device consists of three parts: a cone penetration probe, a penetration rod and a core hammer. The test requires the cooperation of drilling equipment. A certain depth test can be selected, or a continuous penetration test can be performed from top to bottom. The physical and mechanical properties of the foundation soil can be tested by dynamic cone penetration test. After test comparison and related analysis, the density of the foundation soil, the bearing capacity of the foundation, the deformation index and other parameters can be preliminarily evaluated. The vertical change law and horizontal change of the foundation soil can also be determined, and the uniformity of the foundation can be evaluated.
[0006] 3. Standard penetration test: A standard penetration test uses a 63.5kg hammer to fall freely at a distance of 76cm, and drives a standard specification penetrometer into the ground. The nature of the soil layer is determined based on the number of hammer strikes obtained by the penetrometer at a certain depth. This test is applicable to sand, silt and general clay, etc. The test equipment consists of a standard penetrometer, a sounding rod and a core hammer, and the test needs to be carried out in conjunction with drilling. Based on the test results, the density of sand, the shear strength of the soil, the bearing capacity of the foundation, the deformation parameters of the soil, and the determination of sand liquefaction can be determined.
[0007] 4. Geotechnical test: Geotechnical test is to obtain the physical and mechanical properties of soil by conducting corresponding tests on the soil samples. Geotechnical test is mainly indoor test, and the objects are mainly silt, clay, sand, etc., and the premise is to obtain qualified soil samples on site. The instruments and equipment used in different tests are not the same, and often multiple sets are used. By sampling and testing the foundation soil before and after the strong compaction construction and comparing and analyzing the test results, the reinforcement effect of the strong compaction method on the foundation treatment can be judged.
[0008] 5. Rayleigh wave test. Rayleigh wave method detection is a geophysical detection method that has emerged in recent years. Rayleigh wave is an elastic wave that propagates along the surface or layer of the medium, and its penetration depth is about one wavelength. The physical basis of Rayleigh wave detection is the close correlation between the Rayleigh wave phase velocity and the physical and mechanical properties of the rock (soil) body and the dispersion of the surface wave. The dispersion characteristics of Rayleigh wave are used to obtain the distribution of wave velocity in the rock (soil) body, and then the correlation between the wave velocity and other physical and mechanical parameters of the rock (soil) body is used to analyze and evaluate the foundation rock (soil) body. The Rayleigh wave method test method is to place a series of regularly arranged detectors on the ground, use them to receive seismic waves (mainly surface waves) caused by transient vibrations in the medium, and obtain the Rayleigh wave phase velocity. Rayleigh wave method detection uses the size of the wave velocity propagating in the rock (soil) body to judge the density and uniformity of the foundation soil, etc. It can be applied to engineering sites with different stratum conditions, especially in the detection of large-scale gravel backfill, riprap reclamation and other strong compaction foundations.
[0009] 6. Ground penetrating radar test. Ground penetrating radar is a high-resolution, high-efficiency, and real-time detection method in geophysical methods. The basic principle is that high-frequency pulse electromagnetic waves are directed underground through the transmitting antenna. When the radar wave propagates in the underground medium, it will be reflected when it encounters a stratum or target body with electrical differences. The radar waves received by the ground antenna are processed and analyzed, and the spatial position, structure, electrical properties, and geometric form of the underground medium are inferred based on the radar wave waveform, intensity, and receiving time. The instrument used in the ground penetrating radar detection method is light and flexible to operate. Through the changes in the characteristics of the electromagnetic wave reflection waveform, the uniformity of the foundation is macroscopically evaluated, and the changes in the macroscopic spatial structure of the site stratum structure before and after the dynamic compaction construction are compared and analyzed to determine the depth and effect of the dynamic compaction treatment.
[0010] After comparison, it was found that among the many detection methods, each has its own advantages and disadvantages in terms of operation methods, applicable conditions, detection effects, construction period, cost, etc., but the purpose and function of use are similar. By comparing the advantages and limitations of various detection methods, the traditional method can directly reflect the effect of foundation reinforcement after strong compaction treatment, and the results are true and reliable, but it has a limited scope of application, and has disadvantages such as long construction period, high cost, weak representativeness, and poor overall practicality. For this reason, we propose a device for calculating the number of strong compaction times and the amount of compaction. Utility Model Content
[0011] The utility model aims to provide a device for calculating the number of strong tamping times and the amount of tamping, which has the advantage of strong practicability.
[0012] The above technical purpose of the utility model is achieved through the following technical solutions: a device for calculating the number of strong tamping times and the amount of tamping, including a positioning plate, a fixing seat is arranged on the back of the positioning plate, a counting collector is arranged on the front of the fixing seat, a Hall sensor is arranged on one side of the counting collector, one end of the Hall sensor is plugged with the counting collector through a plug, grooves are symmetrically provided on the back of the fixing seat, a clamping arm used in conjunction with the positioning plate is arranged inside the groove, a limiting groove is provided on the front of the fixing seat, a guide rod is arranged inside the limiting groove, a clamping block used in conjunction with the counting collector is slidably connected to the surface of the guide rod, a connecting seat is symmetrically bolted on the back of the fixing seat, and a tight block is arranged inside the connecting seat.
[0013] By adopting the above technical scheme, the utility model realizes Beidou high-precision positioning technology through a positioning flat plate, and combines devices such as Hall sensors and counting collectors to record and calculate the number of tamping times, tamping hammer drop distance, tamping point position, tamping amount change, etc. during the construction process. There is no need to lay out the tamping points, which simplifies the construction process, reduces the investment in construction auxiliary personnel and manpower costs, works continuously for 24 hours, is not affected by weather and line of sight, and improves construction efficiency. The overall equipment is integrated on a fixed seat, and with the use of a connecting seat and a tightening block, the overall equipment can be installed on a tamping machine, thereby improving the installation and carrying convenience of the overall equipment.
[0014] The utility model is further configured as follows: a wire is arranged on one side of the counting collector, and two ends of the wire are respectively plugged with the positioning plate and the counting collector through plugs.
[0015] The above technical solution is adopted to facilitate the data collected by the counting collector to be transmitted to the positioning plate.
[0016] The utility model is further configured as follows: a positioning block is arranged on the front of the fixing seat, and the bottom of the positioning plate and the top of the counting collector are in contact with the positioning block.
[0017] By adopting the above technical solution, the bottom of the positioning plate and the top of the counting collector are limited.
[0018] The utility model is further configured as follows: a limiting sliding rod is bolted inside the groove, and the limiting sliding rod is slidably connected to the clamping arm.
[0019] The above technical solution is adopted to limit the clamping arm.
[0020] The utility model is further configured as follows: a support spring is sleeved on the surface of the guide rod, and the support spring is used in conjunction with a clamping block.
[0021] The above technical solution is adopted to provide supporting elastic force for the card block.
[0022] The utility model is further configured as follows: an adjusting bolt is threadedly connected to the connecting seat, and one end of the adjusting bolt penetrates into the interior of the connecting seat and is rotatably connected to the tightening block.
[0023] The above technical solution is adopted to facilitate the adjustment of the position of the tight block.
[0024] The utility model is further configured as follows: a sliding block is bolted to the tightening block, and a sliding groove used in conjunction with the sliding block is provided inside the connecting seat.
[0025] The above technical solution is adopted to perform sliding limiting on the tight positioning block.
[0026] The utility model is further configured as follows: a return spring is sleeved on the surface of the limit sliding rod, and the return spring is used in conjunction with the clamping arm.
[0027] By adopting the above technical solution, a pulling force is provided to the clamping arm.
[0028] In summary, the utility model has the following beneficial effects:
[0029] 1. The utility model realizes Beidou high-precision positioning technology through a positioning flat plate, and combines devices such as Hall sensors and counting collectors to record and calculate the number of tamping times, tamping hammer drop distance, tamping point position, tamping amount change, etc. during the construction process. There is no need to stake out tamping points, which simplifies the construction process, reduces the investment in construction auxiliary personnel and manpower costs, works continuously for 24 hours, is not affected by weather and line of sight, and improves construction efficiency. The overall equipment is integrated on a fixed seat, and with the use of a connecting seat and a tight block, the overall equipment can be installed on a tamping machine, which improves the installation and carrying convenience of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0031] Figure 2 It is a partial structural schematic diagram of the utility model;
[0032] Figure 3 It is a partial structural back view of the utility model;
[0033] Figure 4 It is a bottom view of a local structure in the utility model;
[0034] Figure 5 It is a schematic diagram of the operating principle of the utility model;
[0035] Figure 6 It is the principle diagram of the counting collector in the utility model.
[0036] Figure numerals: 1. positioning plate; 2. fixing seat; 3. counting collector; 4. Hall sensor; 5. groove; 6. clamping arm; 7. limiting groove; 8. guide rod; 9. clamping block; 10. connecting seat; 11. tightening block; 12. wire; 13. positioning block; 14. limiting slide bar; 15. supporting spring; 16. adjusting bolt; 17. slider; 18. slide groove; 19. reset spring. DETAILED DESCRIPTION
[0037] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0038] Embodiment 1:
[0039] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6A device for calculating the number of strong tamping times and the amount of tamping, comprising a positioning plate 1, a fixing seat 2 is arranged on the back of the positioning plate 1, a counting collector 3 is arranged on the front of the fixing seat 2, a Hall sensor 4 is arranged on one side of the counting collector 3, one end of the Hall sensor 4 is plugged with the counting collector 3 through a plug, a groove 5 is symmetrically arranged on the back of the fixing seat 2, a clamping arm 6 used in conjunction with the positioning plate 1 is arranged inside the groove 5, a limiting groove 7 is arranged on the front of the fixing seat 2, a guide rod 8 is arranged inside the limiting groove 7, a clamping block 9 used in conjunction with the counting collector 3 is slidably connected to the surface of the guide rod 8, and a connecting seat 1 is symmetrically bolted to the back of the fixing seat 2 0, a tight block 11 is arranged inside the connecting seat 10, and the Beidou high-precision positioning technology is realized through the positioning plate 1. Combined with the Hall sensor 4 and the counting collector 3 and other devices, the number of tamping times, the drop distance of the tamping hammer, the position of the tamping point, the change of the tamping amount, etc. are recorded and calculated during the construction process. There is no need to stake out the tamping points, which simplifies the construction links, reduces the investment in construction auxiliary personnel and manpower costs, and works continuously for 24 hours without being affected by weather and sight, thereby improving construction efficiency. The overall equipment is integrated on the fixed seat 2, and with the use of the connecting seat 10 and the tight block 11, the overall equipment can be installed on the tamping machine, thereby improving the installation and carrying convenience of the overall equipment.
[0040] refer to Figure 1 A wire 12 is provided on one side of the counting collector 3, and both ends of the wire 12 are respectively plugged with the positioning plate 1 and the counting collector 3 through plugs. By providing the wire 12, it is convenient to transfer the data collected by the counting collector 3 to the positioning plate 1.
[0041] refer to Figure 1 and Figure 2 A positioning block 13 is provided on the front of the fixing seat 2, and the bottom of the positioning plate 1 and the top of the counting collector 3 are in contact with the positioning block 13. By setting the positioning block 13, the bottom of the positioning plate 1 and the top of the counting collector 3 are limited.
[0042] refer to Figure 3 A limiting slide bar 14 is bolted inside the groove 5 , and the limiting slide bar 14 is slidably connected to the clamping arm 6 . By setting the limiting slide bar 14 , the clamping arm 6 is limited.
[0043] refer to Figure 1 and Figure 2 A support spring 15 is sleeved on the surface of the guide rod 8 , and the support spring 15 is used in conjunction with the clamping block 9 . By providing the support spring 15 , a supporting elastic force is provided to the clamping block 9 .
[0044] refer to Figure 3 and Figure 4An adjusting bolt 16 is threadedly connected to the connecting seat 10, one end of which passes through the interior of the connecting seat 10 and is rotatably connected to the tight block 11. By setting the adjusting bolt 16, the position of the tight block 11 can be easily adjusted.
[0045] refer to Figure 4 A slider 17 is bolted to the tight block 11, and a slide groove 18 for use with the slider 17 is provided inside the connecting seat 10. By providing the slider 17 and the slide groove 18, the tight block 11 is slidably limited.
[0046] refer to Figure 3 A return spring 19 is sleeved on the surface of the limit slide bar 14 , and the return spring 19 is used in conjunction with the clamp arm 6 . By setting the return spring 19 , a pulling force is provided to the clamp arm 6 .
[0047] Brief description of the usage process: high-precision guidance of the rammer is achieved through the base station differential data, and the tamping amount is calculated through the Hall sensor 4 and the counting collector 3. A strong magnetic tag is installed on the rotating shaft of the rammer winch. When the rammer lifts the hammer, the strong magnetic tag on the winch will rotate counterclockwise. When passing close to the Hall sensor 4, the counting collector 3 will send the number of passed tags to the positioning plate 1. The positioning plate 1 will generate the hammer lifting height through calculation. When the rammer drops the hammer, the strong magnetic tag on the winch will rotate clockwise. When passing close to the Hall sensor 4, the collector will send the number of passed tags to the plate. The positioning plate 1 will generate the hammer dropping height through calculation. The tamping amount can be calculated by subtracting the hammer lifting height from the hammer dropping height. The overall equipment is integrated on the fixed seat 2, and is limited by the clamping arm 6 and the clamping block 9. With the use of the connecting seat 10 and the tight block 11, the overall equipment can be installed on the seat railing of the rammer's cab, thereby improving the installation and carrying convenience of the overall equipment.
[0048] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A device for calculating the number of strong compaction and the amount of compaction, comprising a positioning plate (1), characterized in that: A fixing seat (2) is arranged on the back of the positioning plate (1), a counting collector (3) is arranged on the front of the fixing seat (2), a Hall sensor (4) is arranged on one side of the counting collector (3), one end of the Hall sensor (4) is plugged with the counting collector (3) through a plug, a groove (5) is symmetrically provided on the back of the fixing seat (2), a clamping arm (6) used in conjunction with the positioning plate (1) is arranged inside the groove (5), a limiting groove (7) is arranged on the front of the fixing seat (2), a guide rod (8) is arranged inside the limiting groove (7), a clamping block (9) used in conjunction with the counting collector (3) is slidably connected to the surface of the guide rod (8), a connecting seat (10) is symmetrically bolted on the back of the fixing seat (2), and a tightening block (11) is arranged inside the connecting seat (10).
2. The device for calculating the number of strong compaction times and the amount of compaction according to claim 1, characterized in that: A wire (12) is provided on one side of the counting collector (3), and two ends of the wire (12) are respectively plugged into the positioning plate (1) and the counting collector (3) through plugs.
3. The device for calculating the number of strong compaction times and the amount of compaction according to claim 1, characterized in that: A positioning block (13) is provided on the front side of the fixing seat (2), and the bottom of the positioning plate (1) and the top of the counting collector (3) are in contact with the positioning block (13).
4. The device for calculating the number of strong compaction times and the amount of compaction according to claim 1, characterized in that: A limiting sliding rod (14) is bolted inside the groove (5), and the limiting sliding rod (14) is slidably connected to the clamping arm (6).
5. The device for calculating the number of strong compaction times and the amount of compaction according to claim 1, characterized in that: A support spring (15) is sleeved on the surface of the guide rod (8), and the support spring (15) is used in conjunction with a clamping block (9).
6. The device for calculating the number of strong compaction times and the amount of compaction according to claim 1, characterized in that: An adjusting bolt (16) is threadedly connected to the connecting seat (10), and one end of the adjusting bolt (16) penetrates into the interior of the connecting seat (10) and is rotatably connected to the tightening block (11).
7. The device for calculating the number of strong compaction times and the amount of compaction according to claim 1, characterized in that: A sliding block (17) is bolted to the tightening block (11), and a sliding groove (18) for use with the sliding block (17) is provided inside the connecting seat (10).
8. The device for calculating the number of strong compaction times and the amount of compaction according to claim 4, characterized in that: A return spring (19) is sleeved on the surface of the position-limiting slide rod (14), and the return spring (19) is used in conjunction with the clamping arm (6).