Cuttage type seismic source bottom pad

Abstract

The invention relates to the related technical field of geophysical exploration, and discloses a cuttage type seismic source bottom pad which comprises an upper end pad, a threaded hole is formed in the bottom of the upper end pad, a prying opening end is formed in the bottom of the upper end pad, and a coupling insertion rod is fixedly installed at the bottom of the upper end pad. The top of the upper end gasket is fixedly provided with a positioning auxiliary assembly, and the bottom of the upper end gasket is fixedly provided with a self-cleaning assembly. Compared with a traditional steel plate, the cuttage type seismic source bottom pad restrains the springboard phenomenon caused by hammering and knocking vibration, cuttage can well guarantee the coupling degree, meanwhile, the transmission direction of vibration energy is restrained, and the cuttage type seismic source bottom pad is low in cost, environmentally friendly, capable of being repeatedly used, long in service life, free of frequent replacement, easy and convenient to install and suitable for popularization and application. Resonance offset is avoided through interface rigid connection, the vibration phase consistency error is small, the single excitation data quality is improved, and the overall exploration period is shortened.

Description

Technical Field

[0001] The invention relates to the technical field related to geophysical exploration, and in particular to an insertion-type seismic source bottom pad. Background Art

[0002] As an important means of obtaining underground geological information, geophysical exploration plays an irreplaceable role in many fields such as resource exploration, engineering construction, and geological disaster assessment. Its core principle is to detect and analyze underground geological structures and material distribution through specific physical methods based on the differences in physical properties between different geological bodies. Among the many geophysical exploration methods, seismic exploration has become an important way to obtain deep underground information due to its high resolution and wide range of detection depths. In the geophysical exploration technology system, source excitation is a crucial link. Its excitation efficiency directly determines the detection depth and data resolution, and has a profound impact on the accuracy and reliability of the exploration results. As the exploration needs continue to develop in the direction of depth and precision, more stringent requirements are placed on source excitation technology. However, the existing source coupling technology has many problems that are difficult to ignore. Therefore, a kind of insertion source pad is particularly needed.

[0003] However, the existing source coupling technologies mainly include direct contact, which directly hits the source on the ground and relies on the operator's experience to adjust the striking angle and strength, but the energy loss rate is high and the repeatability is poor; the basic metal plate method uses a single material steel plate as a pad, which can reduce local ground deformation, but is not adaptable to heterogeneous strata and is prone to edge energy leakage; the composite cushion method lays flexible materials such as rubber and polyurethane on the bottom of the steel plate to improve contact, but flexible materials absorb high-frequency signals, resulting in a narrowing of the effective frequency band width; the hydraulic coupling device dynamically adjusts the contact pressure through the hydraulic system, but has a complex structure and high maintenance cost, and is difficult to operate stably in harsh outdoor environments. The existing technology has low energy transfer efficiency, and the rigid contact of a single material steel plate is prone to form a cavity effect in loose strata, resulting in energy reflection loss; the frequency response characteristics are limited, and the high-frequency attenuation phenomenon of traditional composite cushions is serious, which cannot meet the needs of high-resolution exploration; the portability is insufficient, and the weight of hydraulic or motor-driven coupling devices is generally overweight, resulting in low efficiency in handling and deployment. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an intercalation type seismic source base pad to solve the technical problems proposed in the above background technology, such as the existing seismic source coupling technology relies on the operator's experience to adjust the striking angle and force, has a high energy loss rate and poor repeatability; lacks adaptability to heterogeneous formations and is prone to edge energy leakage; has a complex structure, high maintenance cost, insufficient portability, low transportation and deployment efficiency, and cannot meet the needs of high-resolution exploration.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plug-in type seismic source base pad, comprising an upper gasket, a threaded hole is provided at the bottom of the upper gasket, a prying end is provided at the bottom of the upper gasket, a coupling rod is fixedly installed at the bottom of the upper gasket, a coupling plug is fixedly installed at the bottom of the coupling rod, a positioning auxiliary component is fixedly installed at the top of the upper gasket, and a self-cleaning component is fixedly installed at the bottom of the upper gasket.

[0006] Preferably, the upper gasket, coupling rod and coupling plug are an integrated steel-plastic molded gasket structure, and the upper gasket, coupling rod and coupling plug are all adapted to each other.

[0007] Preferably, the threaded holes are provided in four identical groups, and the four groups of threaded holes are distributed diagonally with respect to the vertical center line of the upper end gasket.

[0008] Preferably, the threaded hole is tightly connected to the hole matching the seismic source device, and the threaded hole and the hole matching the seismic source device have the same aperture.

[0009] Preferably, four identical groups of prying ends are provided, and the four groups of prying ends are symmetrically distributed on the end surface of the upper end gasket.

[0010] Preferably, the vertical section of the upper gasket, coupling rod and coupling plug assembly is a "T"-shaped structure, and the vertical center lines of the coupling rod and the coupling plug are located on the same vertical center line as the vertical center line of the upper gasket.

[0011] Preferably, the diameter of the coupling rod is consistent with the diameter of the top end of the coupling plug, and the diameter of the coupling rod is greater than the diameter of the bottom end of the coupling plug.

[0012] Preferably, the positioning auxiliary component includes a laser locator, a limiting magnet block 1, a limiting magnet block 2, a slide rail, a sliding magnet and a limiting groove, the top of the upper end gasket is fixedly installed with a laser locator, the top of the upper end gasket is fixedly installed with a limiting magnet block 1, the top of the upper end gasket is fixedly installed with a limiting magnet block 2, the top of the upper end gasket is fixedly installed with a slide rail, the top of the slide rail is slidably connected with a sliding magnet, the bottom of the sliding magnet is provided with a limiting groove, the size and structure of the limiting magnet block 1 and the limiting magnet block 2 are the same, and the limiting magnet block 1 and the limiting magnet block 2 are magnetically connected to the sliding magnet.

[0013] Preferably, the slide rail is located between the first limiting magnetic block and the second limiting magnetic block, and the positioning auxiliary components are provided in four identical groups, and the four groups of the positioning auxiliary components are diagonally distributed with respect to the vertical center line of the upper end gasket.

[0014] Preferably, the self-cleaning component includes a mounting base, a coil spring, a connecting ring and a cleaning brush, the mounting base is fixedly mounted on the bottom of the upper gasket, the coil spring is fixedly mounted on the bottom of the mounting base, the connecting ring is fixedly mounted on the bottom of the coil spring, a cleaning brush is fixedly mounted on the inner side of the connecting ring, the outer diameters of the mounting base and the coil spring are both larger than the diameter of the coupling rod, the cleaning brushes are provided in multiple identical groups, and the multiple groups of cleaning brushes are distributed in a ring shape about the inner side of the connecting ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The insertion-type seismic source base pad of the present invention is tightly connected to the stratum through the coupling plug rod, which changes the energy transmission path and mode. During the hammer vibration, the plug rod can effectively suppress the springboard phenomenon, so that the seismic source energy is more directly transmitted to the underground, reducing the reflection and scattering of energy on the ground. The insertion-type seismic source base pad can improve the energy transmission efficiency, and more energy can reach the deep stratum during exploration, and the detection depth is increased. It is of great significance for the study of deep geological structure and resource exploration. In deep mineral exploration projects, higher energy transmission efficiency enables seismic waves to penetrate deeper strata and obtain richer deep geological information, which is helpful to discover large mineral deposits hidden in the deep.

[0017] 2. The plug-in type seismic source base pad of the present invention uses a plugging method to make the coupling plug rod closely combined with the surrounding strata, effectively limiting the diffusion of vibration energy to the surroundings, and concentrating it in the vertical direction of the underground, so that the dispersion of energy is greatly reduced, and it is more directional and concentrated, and the energy utilization efficiency is improved, so that the received seismic signal is clearer and more accurate. In the exploration process, it can more accurately identify the subtle changes in the stratum structure and the location of geological anomalies, greatly improving the resolution and accuracy of the exploration data. In the urban underground cavity detection project, the precise energy conduction direction can more accurately locate the cavity position and range, providing a reliable basis for urban infrastructure construction and safety assessment;

[0018] 3. The insertion-type seismic source base pad of the present invention adopts hard 304 stainless steel material with low cost, and is manufactured through an integrated steel-plastic molding process, with a strong and durable structure, so that the base pad has a long service life and can be used repeatedly, reducing the cost expenditure caused by frequent replacement of the base pad, and can save a lot of equipment procurement and replacement costs. In terms of environmental protection, 304 stainless steel material is green and environmentally friendly, and will not cause pollution to soil, water sources, etc. during use. It is particularly suitable for exploration work in urban scenes and environmentally sensitive areas, which not only meets the exploration needs, but also meets the strict requirements of modern society for environmental protection;

[0019] 4. The insertion-type seismic source base pad of the present invention can flexibly adjust the drilling holes according to different seismic source equipment through the threaded connection port and the corresponding hole depth and position of the pad plane, so that the base pad can be quickly adapted to seismic sources of various models and specifications, greatly improving the flexibility and convenience of equipment installation. At the same time, the base pad shortens the time for replacing the seismic source and greatly improves the work efficiency. In addition, the design of the prying end further improves the convenience of the base pad during use. It can be easily pried out with a simple tool through the prying end, which reduces the difficulty of operation and reduces the equipment damage and time waste that may be caused by the difficulty in removing the base pad. In addition, in the case of complex and changeable field exploration environments, the convenient applicability can ensure the smooth progress of exploration work and improve exploration efficiency;

[0020] 5. The insertion-type seismic source base pad of the present invention adopts an interface rigid connection mode, which effectively avoids the resonance offset phenomenon. The rigid connection can ensure the relative position stability between the seismic source and the base pad, reduce the displacement and shaking caused by vibration, and make the vibration phase consistency error of the seismic wave generated by each excitation extremely small, thereby ensuring the stability and reliability of the seismic wave signal, and can effectively improve the quality and accuracy of exploration data, reduce the error of data interpretation, and provide more reliable data support for geological structure analysis and resource evaluation. In oil exploration projects, the highly stable seismic source base pad ensures that the collected data can accurately reflect the distribution of underground oil reservoirs, which helps to improve the exploration success rate and resource development efficiency;

[0021] 6. The implantable seismic source base pad of the present invention reduces the cost of geophysical exploration in various ways. On the one hand, due to the improvement of energy transfer efficiency and the precise control of energy conduction direction, the quality of data obtained by a single excitation is greatly improved. The high-quality data reduces the number of repeated exploration operations and shortens the exploration cycle, resulting in a significant reduction in manpower, material and time costs. On the other hand, the high cost-effectiveness and long service life of the base pad reduce equipment procurement and maintenance costs, reduce exploration costs from multiple links, improve the economic benefits of exploration projects, and enhance the application competitiveness of geophysical exploration in different fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the split structure of the positioning auxiliary component of the present invention;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the earthquake source base pad of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of a three-dimensional cross-sectional view of the earthquake source base pad of the present invention;

[0028] Figure 6 This is a schematic diagram of the top view structure of the earthquake source base pad of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the side view of the seismic source base pad of the present invention;

[0030] Figure 8 It is a schematic diagram of the front view structure of the seismic source base pad of the present invention.

[0031] In the figure: 1. upper end gasket; 2. threaded hole; 3. pry end; 4. coupling rod; 5. coupling plug; 6. positioning auxiliary component; 601. laser locator; 602. limit magnet block 1; 603. limit magnet block 2; 604. slide rail; 605. sliding magnet; 606. limit groove; 7. self-cleaning component; 701. mounting base; 702. coil spring; 703. connecting ring; 704. cleaning brush. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present invention clearer, the following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present invention, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed for protection in the claims of the present application can be implemented.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 8 The present invention provides a technical solution: a plug-type seismic source base pad, comprising an upper gasket 1, a threaded hole 2 is provided at the bottom of the upper gasket 1, a prying end 3 is provided at the bottom of the upper gasket 1, a coupling rod 4 is fixedly installed at the bottom of the upper gasket 1, a coupling plug 5 is fixedly installed at the bottom of the coupling rod 4, a positioning auxiliary component 6 is fixedly installed at the top of the upper gasket 1, and a self-cleaning component 7 is fixedly installed at the bottom of the upper gasket 1. In the present invention. By tightly connecting the coupling rod 4 with the stratum, the energy transfer path and mode can be changed. During hammer vibration, the coupling rod 4 can effectively suppress the springboard phenomenon, so that the seismic source energy is more directly transmitted to the underground, reducing the reflection and scattering of energy on the ground, and improving the energy transfer efficiency.

[0035] The upper gasket 1, the coupling rod 4 and the coupling plug 5 are an integrated steel-plastic molded gasket structure, and the upper gasket 1, the coupling rod 4 and the coupling plug 5 are all adapted to each other. The design of the integrated steel-plastic molded gasket structure enhances the toughness and corrosion resistance of the bottom gasket, while ensuring the stability and strength of the overall structure, so that the bottom gasket can maintain good integrity and durability when subjected to the vibration of the source equipment.

[0036] The threaded holes 2 are provided in four identical groups, and the four groups of threaded holes 2 are diagonally distributed with respect to the vertical center line of the upper gasket 1. Furthermore, the threaded holes 2 are tightly connected with the holes matching the seismic source device, and the threaded holes 2 have the same aperture as the holes matching the seismic source device. The threaded holes 2 facilitate the base gasket to quickly adapt to seismic source devices of various models and specifications, thereby improving the flexibility and convenience of equipment installation.

[0037] There are four identical groups of prying ends 3, and the four groups of prying ends 3 are symmetrically distributed on the end surface of the upper gasket 1. The arrangement of the prying ends 3 facilitates the use of tools to pry when the bottom gasket is difficult to pull out, thereby reducing the difficulty of operation.

[0038] The vertical section of the upper gasket 1 , the coupling rod 4 and the coupling plug 5 combination is a “T”-shaped structure, and the vertical center lines of the coupling rod 4 and the coupling plug 5 are located on the same vertical center line as the vertical center line of the upper gasket 1 .

[0039] The diameter of the coupling rod 4 is consistent with the diameter of the top end of the coupling plug 5 , and the diameter of the coupling rod 4 is greater than the diameter of the bottom end of the coupling plug 5 .

[0040] The positioning auxiliary component 6 includes a laser locator 601, a limiting magnet 1 602, a limiting magnet 2 603, a slide rail 604, a sliding magnet 605 and a limiting groove 606. The laser locator 601 is fixedly installed on the top of the upper gasket 1, the limiting magnet 1 602 is fixedly installed on the top of the upper gasket 1, the limiting magnet 2 603 is fixedly installed on the top of the upper gasket 1, the slide rail 604 is fixedly installed on the top of the upper gasket 1, the sliding magnet 605 is slidably connected to the top of the slide rail 604, and the limiting groove 606 is provided at the bottom of the sliding magnet 605. The size and structure of the limiting magnet 1 602 and the limiting magnet 2 603 are the same, and the limiting magnet 1 602 and the limiting magnet 2 603 are magnetically connected to the sliding magnet 605. The slide rail 604 is located between the limiting magnetic block 1 602 and the limiting magnetic block 2 603. Four identical groups of positioning auxiliary components 6 are provided, and the four groups of positioning auxiliary components 6 are diagonally distributed with respect to the vertical center line of the upper gasket 1. The laser locator 601 is used to quickly determine the installation position of the base gasket and improve the installation accuracy. The sliding magnetic block 605 and the ground magnetic mark attract each other to assist the base gasket to be accurately placed in the predetermined position, which can effectively improve the positioning accuracy, especially in the field environment with poor light or uneven ground.

[0041] The self-cleaning assembly 7 includes a mounting base 701, a coil spring 702, a connecting ring 703 and a cleaning brush 704. The mounting base 701 is fixedly mounted on the bottom of the upper gasket 1, the coil spring 702 is fixedly mounted on the bottom of the mounting base 701, the connecting ring 703 is fixedly mounted on the bottom of the coil spring 702, and the cleaning brush 704 is fixedly mounted on the inner side of the connecting ring 703. The outer diameters of the mounting base 701 and the coil spring 702 are both larger than the diameter of the coupling rod 4. The cleaning brushes 704 are provided in multiple groups, and the multiple groups of cleaning brushes 704 are distributed in a ring shape with respect to the inner side of the connecting ring 703. By arranging the cleaning brush 704 on the surface of the coupling rod 4, when the coupling rod 4 is inserted into and pulled out of the formation, the soil attached to the surface of the rod can be scraped off to prevent the accumulation of soil from affecting the reinsertion of the rod and energy transmission, thereby keeping the bottom pad clean.

[0042] Example 2

[0043] A plug-in type seismic source bottom pad, the production of which includes the following steps:

[0044] 1. Production Process

[0045] Material preparation: Strictly select 304 stainless steel raw materials that meet national standards to ensure that their composition and mechanical properties meet the standards. According to the design dimensions, accurately calculate and cut the required stainless steel plates to provide a basis for subsequent processing.

[0046] One-piece steel-plastic molding: Using advanced one-piece steel-plastic molding technology, stainless steel plates are integrated with specific plastic materials. Under high temperature and high pressure environment, the plastic is evenly filled into the stainless steel structure, enhancing the toughness and corrosion resistance of the base pad while ensuring the stability and strength of the overall structure.

[0047] Processing of threaded hole 2: Use high-precision CNC processing equipment to accurately drill threaded holes 2 that match the seismic source equipment at the four corners of the upper gasket of the base pad. Strictly control the dimensional accuracy of threaded hole 2, including parameters such as diameter and pitch, to ensure close fit with the bolts of the seismic source equipment and keep the error within a very small range.

[0048] Processing of the prying end 3 and the coupling rod 4: For the prying end 3, a mold stamping or CNC milling process is used to create an ergonomic groove shape that is easy for tool insertion, ensuring that its depth, width and angle meet the design requirements. For the coupling rod 4, according to different geological conditions and exploration needs, a CNC lathe is used to accurately process its length, diameter and taper to ensure the structural accuracy and performance of the rod.

[0049] Quality inspection: After processing, the base pad is subjected to a comprehensive quality inspection. The appearance inspection ensures that there are no defects such as cracks and sand holes on the surface. The size measurement uses high-precision measuring tools to verify whether the size of each component meets the design standards. The strength test simulates the stress conditions in actual use to check the bearing capacity and stability of the base pad. Only the base pads that pass all the inspections can enter the subsequent links.

[0050] 2. On-site operation process

[0051] 1. Preparation before operation

[0052] Source adaptation and adjustment: According to the model of the source equipment used on site, determine the drilling position and depth of the threaded connection port on the pad plane, and use professional drilling equipment, such as an electric drill or pneumatic drill, to drill suitable installation holes on the base pad to ensure accurate hole positions and standard hole diameters to facilitate quick connection with the source equipment.

[0053] Site investigation and pretreatment: Conduct a detailed investigation of the exploration site and evaluate the geological conditions. Dig shallow holes of appropriate depth and diameter on the soil surface according to the length of the coupling rod 4 and the geological characteristics. Generally, the shallow hole is 2-5 cm longer than the rod and 1-2 cm larger in diameter than the rod, so as to facilitate smooth insertion and tight coupling of the rod. On hardened ground, measure the thickness of the structural layer and select a matching drill bit to prepare for subsequent drilling operations.

[0054] 2. Installation and operation of the seismic source base pad

[0055] Soil surface operations: firmly install the processed source base pad to the source equipment through the threaded connection port, use a torque wrench to tighten the bolts according to the specified torque value to ensure a firm connection, lift the source equipment with the installed base pad to the top of the shallow hole, adjust the position so that it is aligned with the center of the shallow hole, start the source, and insert the coupling rod 4 vertically and slowly into the shallow hole under the action of vibration with appropriate vibration frequency and intensity until it reaches the predetermined depth, so as to achieve dense coupling between the source and the ground. After completion, perform seismic wave excitation operations.

[0056] Hardened ground operations: Use a matching drill bit to drill holes in the hardened ground at the designed depth and angle. During the drilling process, clean up the debris in the hole in time to ensure that the hole wall is smooth and the hole diameter is uniform. After the drilling is completed, check the connection between the base pad and the source equipment again. If it is correct, move it to the drilling position, start the source, control the vibration parameters, and make the coupling rod 4 vibrate and insert into the hole to achieve a dense coupling effect, and then carry out exploration operations.

[0057] 3. Recovery of earthquake source bottom pad

[0058] Normal removal: After the source operation is completed, turn off the source equipment first, and try to pull the source base pad out of the ground directly using lifting equipment or manpower. If the base pad is coupled with the ground normally, it can generally be pulled out smoothly.

[0059] Difficulty handling: If the base pad is difficult to pull out due to tight coupling, use a crowbar or other tool to insert the prying end 3, and multiple people work together to pry in the same direction at the same time, using the principle of leverage to gradually loosen the connection between the base pad and the ground until the base pad is successfully removed. After removal, clean the dirt and debris on the surface of the base pad, check for damage, and prepare for the next use.

[0060] 3. Maintenance process

[0061] Daily cleaning: After each use, clean the dirt and debris on the surface of the base pad in time. You can use a high-pressure water gun to rinse or a brush to clean it. Pay special attention to the threaded hole 2, the pry end 3 and the coupling rod 4 to ensure that there is no debris left to prevent affecting the subsequent performance.

[0062] Regular inspection: Regularly conduct a comprehensive inspection of the base gasket to check whether the threaded hole 2 is worn, deformed or the thread is damaged; check whether the pry end 3 is cracked or deformed; measure the length and diameter of the coupling rod 4 to determine whether it is worn or bent. If minor problems are found, repair them in time; if the damage is serious, replace the base gasket to ensure the safety and reliability of the equipment.

[0063] Anti-rust treatment: To extend the service life of the base pad, perform anti-rust treatment regularly. Apply anti-rust paint or preservatives evenly on the surface of the base pad, especially on parts prone to rust, such as threaded holes 2 and the surface of the plug rod. When storing, choose a dry and well-ventilated place to prevent the base pad from getting damp and rusting.

[0064] Working principle: When in use, the staff first checks the environment around the entire device and the status of its various parts. If there is a problem, the entire device will be repaired or replaced in time. After the inspection, the staff first strictly selects 304 stainless steel raw materials that meet national standards to ensure that their composition and mechanical properties meet the standards. According to the design size, the required stainless steel plates are accurately calculated and cut to provide a basis for subsequent processing. The advanced one-piece steel-plastic molding process is used to fuse the stainless steel plates with specific plastic materials. Under high temperature and high pressure environment, the plastic is evenly filled in the stainless steel structure to enhance the toughness and corrosion resistance of the base pad. At the same time, the stability and strength of the overall structure are ensured. High-precision CNC processing equipment is used. At this time, the staff uses the positioning auxiliary device, the laser locator 601 emits a laser beam, and quickly determines the installation position of the base pad at the work site, improves installation accuracy, and reduces positioning time. The sliding magnetic block 605 uses magnetic force to interact with the magnetic pre-set on the ground. The marks attract each other, and the auxiliary base pad is accurately placed in the predetermined position, especially when the light in the outdoor environment is poor or the ground is uneven, which can effectively improve the positioning accuracy and ensure the source excitation effect. The threaded holes 2 that match the source equipment are accurately drilled at the four corners of the upper gasket of the base pad, and the dimensional accuracy of the threaded holes 2 is strictly controlled, including parameters such as diameter and pitch, to ensure close fit with the bolts of the source equipment, and the error is controlled within a very small range. For the prying end 3, die stamping or CNC milling technology is used to create a groove shape that is easy for tool insertion and ergonomic, ensuring that its depth, width and angle meet the design requirements. For the coupling plug 4, according to different geological conditions and exploration needs, the CNC lathe is used to accurately process its length, diameter and taper to ensure the structural accuracy and performance of the plug. After the processing is completed, the base pad is subjected to a comprehensive quality inspection, and the appearance inspection ensures that there are no cracks, sand holes and other defects on the surface; the size measurement uses high-precision measuring tools to verify whether the size of each component meets the design standards;The strength test simulates the stress conditions in actual use to check the bearing capacity and stability of the base pad. Only the base pads that pass all the tests can enter the subsequent links. At this time, the staff determines the drilling position and depth of the threaded connection port of the pad plane according to the model of the seismic source equipment used on site, and uses professional drilling equipment, such as an electric drill or a pneumatic drill, to drill suitable installation holes on the base pad to ensure accurate hole positions and standard hole diameters to facilitate rapid connection with the seismic source equipment. The exploration site is also surveyed in detail to assess the geological conditions. On the soil surface, shallow holes of appropriate depth and diameter are dug according to the length and geological characteristics of the coupling rod 4. Generally, the shallow hole is 2-5 cm longer than the rod and 1-2 cm larger in diameter than the rod, so as to facilitate smooth insertion and tight coupling of the rod. If the ground is hardened, it is necessary to measure the thickness of the structural layer and select a matching drill bit to prepare for subsequent drilling operations. At this time, the staff will firmly install the processed source base pad with the source equipment through the threaded connection port, use a torque wrench to tighten the bolts according to the specified torque value to ensure a firm connection, and hoist the source equipment with the installed base pad to the top of the shallow hole, adjust the position so that it is aligned with the center of the shallow hole, start the source, and with appropriate vibration frequency and intensity, make the coupling rod 4 vertically and slowly insert it into the shallow hole under the action of vibration until it reaches the predetermined depth, so as to achieve a dense coupling between the source and the ground. After completion, perform seismic wave excitation operations, use a matching drill bit, and drill holes in the hardened ground according to the designed depth and angle. During the drilling process, clean up the debris in the hole in time to ensure that the hole wall is smooth and the hole diameter is uniform. After the drilling is completed, check the connection between the bottom pad and the source equipment again. If it is correct, move it to the drilling position, start the source, control the vibration parameters, and make the coupling rod 4 vibrate and insert into the hole to achieve a dense coupling effect, and then carry out exploration operations. At this time, the staff will wait for the source operation to be completed, first turn off the source equipment, and try to use a lifting device or manpower to directly pull the source bottom pad from the ground. If the coupling between the bottom pad and the ground is normal, it can generally be pulled out smoothly. If the bottom pad is difficult to pull out due to too tight coupling, use a crowbar or other tools to insert the prying end 3. Multiple people work together to pry in the same direction at the same time, and use the lever principle to gradually loosen the connection between the bottom pad and the ground until the bottom pad is successfully taken out. After taking it out, clean the dirt and debris on the surface of the bottom pad and check whether it is damaged. In preparation for the next use, after each use, a spiral cleaning bristle can be set on the surface of the coupling rod 4 through the self-cleaning device. When the rod is inserted into and pulled out of the formation, the spiral cleaning bristle can scrape off the dirt attached to the surface of the rod to avoid soil accumulation affecting the insertion of the rod again and energy transmission, keep the base pad clean, facilitate subsequent storage and transportation, reduce the workload of cleaning, and clean the dirt and debris on the surface of the base pad in time. It can be rinsed with a high-pressure water gun or cleaned with a brush. Pay special attention to the threaded hole 2, the prying end 3 and the coupling rod 4 to ensure that there is no debris left to prevent affecting the subsequent performance. Finally, the staff will regularly conduct a comprehensive inspection of the base pad to check whether the threaded hole 2 is worn, deformed or the thread is damaged; check whether the prying end 3 is cracked or deformed;Measure the length and diameter of the coupling rod 4 to determine whether it is worn or bent. If a minor problem is found, repair it in time; if the damage is serious, replace the base pad to ensure the safety and reliability of the equipment. To extend the service life of the base pad, perform anti-rust treatment regularly and evenly apply anti-rust paint or preservatives on the surface of the base pad, especially the parts that are prone to rust, such as the threaded hole 2 and the surface of the rod. When storing, choose a dry and well-ventilated place to prevent the base pad from getting damp and rusting. ;

[0065] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A plug-in type seismic source bottom pad, comprising an upper end pad (1), characterized in that: A threaded hole (2) is provided at the bottom of the upper gasket (1), a prying end (3) is provided at the bottom of the upper gasket (1), a coupling plug (4) is fixedly installed at the bottom of the upper gasket (1), a coupling plug (5) is fixedly installed at the bottom of the coupling plug (4), a positioning auxiliary component (6) is fixedly installed at the top of the upper gasket (1), and a self-cleaning component (7) is fixedly installed at the bottom of the upper gasket (1).

2. The insertion-type seismic source base pad according to claim 1, characterized in that: The upper gasket (1), the coupling rod (4) and the coupling plug (5) are an integrated steel-plastic gasket structure, and the upper gasket (1), the coupling rod (4) and the coupling plug (5) are all compatible with each other.

3. The insertion-type seismic source base pad according to claim 1, characterized in that: The threaded holes (2) are provided in four identical groups, and the four groups of threaded holes (2) are distributed diagonally with respect to the vertical center line of the upper end gasket (1).

4. The insertion-type seismic source base pad according to claim 1, characterized in that: The threaded hole (2) is tightly connected to a hole matching the seismic source device, and the threaded hole (2) and the hole matching the seismic source device have the same aperture.

5. The insertion-type seismic source base pad according to claim 1, characterized in that: The prying ends (3) are provided in four identical groups, and the four groups of prying ends (3) are symmetrically distributed on the end surface of the upper end gasket (1).

6. The insertion type seismic source base pad according to claim 1, characterized in that: The vertical cross-section of the upper gasket (1), coupling rod (4) and coupling plug (5) assembly is in a "T"-shaped structure, and the vertical center lines of the coupling rod (4) and coupling plug (5) are located on the same vertical center line as the vertical center line of the upper gasket (1).

7. The insertion-type seismic source base pad according to claim 1, characterized in that: The diameter of the coupling rod (4) is consistent with the diameter of the top end of the coupling plug (5), and the diameter of the coupling rod (4) is greater than the diameter of the bottom end of the coupling plug (5).

8. The insertion-type seismic source base pad according to claim 1, characterized in that: The positioning auxiliary component (6) comprises a laser locator (601), a limiting magnetic block 1 (602), a limiting magnetic block 2 (603), a slide rail (604), a sliding magnetic block (605) and a limiting groove (606); the laser locator (601) is fixedly mounted on the top of the upper end gasket (1); the limiting magnetic block 1 (602) is fixedly mounted on the top of the upper end gasket (1); the limiting magnetic block 2 (603) is fixedly mounted on the top of the upper end gasket (1); 03), a slide rail (604) is fixedly installed on the top of the upper gasket (1), a sliding magnet (605) is slidably connected to the top of the slide rail (604), a limiting groove (606) is provided at the bottom of the sliding magnet (605), the size and structure of the limiting magnet 1 (602) and the limiting magnet 2 (603) are the same, and the limiting magnet 1 (602) and the limiting magnet 2 (603) are magnetically connected to the sliding magnet (605).

9. The insertion-type seismic source base pad according to claim 8, characterized in that: The slide rail (604) is located between the first limiting magnetic block (602) and the second limiting magnetic block (603), and the positioning auxiliary components (6) are provided in four identical groups, and the four groups of the positioning auxiliary components (6) are diagonally distributed with respect to the vertical center line of the upper end gasket (1).

10. The insertion-type seismic source base pad according to claim 1, characterized in that: The self-cleaning component (7) comprises a mounting base (701), a coil spring (702), a connecting ring (703) and a cleaning brush (704); the mounting base (701) is fixedly mounted on the bottom of the upper gasket (1); the coil spring (702) is fixedly mounted on the bottom of the mounting base (701); the connecting ring (703) is fixedly mounted on the bottom of the coil spring (702); the cleaning brush (704) is fixedly mounted on the inner side of the connecting ring (703); the outer diameters of the mounting base (701) and the coil spring (702) are both larger than the diameter of the coupling rod (4); the cleaning brush (704) is provided in multiple identical groups, and the multiple groups of cleaning brushes (704) are distributed in a ring shape with respect to the inner side of the connecting ring (703).

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