An intelligent geologic structure stress field simulation system and method of use thereof

Abstract

The application discloses an intelligent geologic structure stress field simulation system and a use method thereof, which comprises a geologic structure simulation site, an integrated control system is installed on the geologic structure simulation site, a support frame is installed on the geologic structure simulation site, a geologic simulation area is arranged at the front end of the geologic structure simulation site, a connection center is arranged on the support frame, an impact mechanism is installed on one side of the connection center, a sampling mechanism is installed on the other side of the connection center, a linkage mechanism is connected in the sampling mechanism, and the other end of the linkage mechanism is connected with the impact mechanism; the driving requirements of the impact mechanism and the sampling mechanism are integrated through the linkage mechanism, only a single driving source (a first driving motor) is needed to synchronously drive a geologic impact hammer and a sampling drill bit, energy redundancy of traditional double-motor parallel operation is completely eliminated, energy consumption is reduced compared with a traditional system, and energy utilization efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geological exploration, in particular to an intelligent geological structure stress field simulation system and a use method thereof. BACKGROUND

[0002] The intelligent geological structure stress field simulation system is a comprehensive system combining geology, mechanics, computer science and artificial intelligence technology, which is used for simulating and analyzing the stress distribution, evolution law and influence on geological activities (such as earthquakes, fault activities, oil and gas migration, etc.) in the crustal structure movement, and the core goal is to improve the geological prediction accuracy, optimize the resource exploration and development efficiency, and provide a scientific basis for geological disaster prevention.

[0003] In the existing environmental simulation geological exploration, in the simulation of extreme environment geological exploration task, in the traditional simulation, because the impact hammer and the sample collecting device are designed, the impact head applies periodic impact force to the rock stratum, and the surrounding geology can be drilled into the geology by the sampling device for sampling, but there are the following obvious disadvantages, the system needs to supply power to the impact hammer and the sampling device respectively, that is, two motors need to be prepared for driving at the same time, the energy consumption is significantly increased, the parallel operation of the two motors not only needs complex circuit design and energy management, but also needs an additional control system to adjust the operation state of the two devices respectively, which leads to the increase of the design and implementation cost of the system, and further may increase the maintenance cost in the later period, such as the inspection, replacement of the motor and the troubleshooting of the system, therefore, the present application provides an intelligent geological structure stress field simulation system and a use method thereof. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the present application provides an intelligent geological structure stress field simulation system and a use method thereof, which integrates the driving requirements of the impact mechanism and the sampling mechanism through the linkage mechanism, and only a single driving source (first driving motor) is needed to synchronously drive the geological impact hammer and the sampling drill bit, completely eliminating the energy redundancy of the traditional double-motor parallel operation. Compared with the traditional system, the energy consumption is reduced, and the energy utilization efficiency is significantly improved, in the soft geological mode, the linkage can be quickly released, and the second driving motor is independently started for low-power sampling; in the hard stratum, the linkage mechanism converts the reciprocating motion of the sliding block into the forward and reverse rotation power of the sampling drill bit without additional power supply, and the two modes can be intelligently switched according to the geological conditions, further optimizing the energy distribution efficiency.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a kind of intelligent geologic structure stress field simulation system, including geologic structure simulation site, integrated control system is installed and arranged on the geologic structure simulation site, support frame is installed and arranged on the geologic structure simulation site, geologic simulation area is provided at the front of the geologic structure simulation site, connecting center is provided on the support frame, impact mechanism is installed and arranged on the side of the connecting center, sampling mechanism is installed and arranged on the other side of the connecting center, linkage mechanism is connected in the sampling mechanism, the other end of the linkage mechanism is connected with impact mechanism, the impact mechanism and linkage mechanism are fixed and detached by thread connection with synchronous work of sampling mechanism driven by a drive source, linkage mechanism and impact mechanism are fixed and detached by thread connection.

[0006] As a preferred technical scheme of the present application, the impact mechanism includes a first mounting bracket mounted and fixed on the outer wall of the connecting center, a first drive motor provided on the top end of the first mounting bracket, a swing arm fixed with the output shaft of the first drive motor, a connecting rod having one end movably connected with the swing arm, a hinged seat hingedly connected with the other end of the connecting rod, a sliding block connected with the hinged seat, a sliding groove opened in the first mounting bracket and slidably connected with the sliding block, and a geologic impact hammer mounted on the bottom end outer wall of the sliding block.

[0007] As a preferred technical scheme of the present application, the swing arm rotates one circle to drive the sliding block to reciprocate up and down in the sliding groove once.

[0008] As a preferred technical scheme of the present application, the upper end of the connecting rod is provided as a ball, and the upper end of the connecting rod is movably connected with the swing arm universal joint.

[0009] As a preferred technical scheme of the present application, the first mounting bracket is provided with a linkage mechanism, and the linkage mechanism penetrates through the first mounting bracket and is threadedly connected with the sliding block.

[0010] As a preferred technical scheme of the present application, the linkage mechanism includes a slot opened in the side wall of the first mounting bracket, a threaded groove provided in the sliding block, an external thread threadedly connected with the threaded groove, a movable rod provided with the external thread, and a sleeve rod slidably connected with the movable rod.

[0011] As a preferred technical scheme of the present application, the slot penetrates through the first mounting bracket to be opened into the sliding groove, and the end of the movable rod is provided with an external thread.

[0012] As a preferred technical scheme of the present application, the movable rod linearly slides and rotationally connects in the sleeve rod, and the sleeve rod is connected on the sampling mechanism.

[0013] As a preferred technical solution of the present application, the sampling mechanism comprises a second mounting frame mounted on the outer wall of the connecting center, a rotating column rotatably connected in the second mounting frame, a groove opened on the outer wall of the rotating column, a second driving motor mounted on the top end of the second mounting frame and having an output shaft connected with the rotating column, a driving shaft connected with the bottom end of the rotating column, and a sampling drill bit connected with the driving shaft; wherein a sleeve rod is connected in the groove.

[0014] The present application also provides a technical solution, a method for using an intelligent geologic structure stress field simulation system, characterized by comprising the following steps:

[0015] S1, firmly install the support frame on the geologic structure simulation site, ensure its perpendicularity and levelness, check whether the impact mechanism and the sampling mechanism on both sides of the connecting center are firmly installed, confirm that the linkage mechanism (movable rod, sleeve rod) is in an operable state, and perform self-checking through the integrated control system to ensure that the first driving motor and the second driving motor are operating normally;

[0016] S2, according to the experimental requirements, fill the geologic simulation area with simulated soil or rock (loose sand, clay, hard rock, etc.), and adjust the initial height of the geologic impact hammer and the sampling drill bit to avoid early contact with the simulated stratum;

[0017] S3, adjust the geologic simulation area to a soft geology independent sampling mode;

[0018] S3.1, disconnect the linkage mechanism, rotate the movable rod counterclockwise to make the external thread exit from the thread groove of the sliding block, pull the movable rod back into the sleeve rod completely, ensure that it is disconnected from the groove, disconnect the impact mechanism and the sampling mechanism, check whether the groove and the sleeve rod are disconnected to avoid motion interference;

[0019] S3.2, start the second driving motor through the integrated control system, drive the rotating column to rotate the driving shaft and the sampling drill bit clockwise, control the drill bit to slowly press down to the simulated stratum, cut the soil with the blade, and discharge the debris to the ground through the drill bit blade or the discharge channel, pause according to the preset depth (such as every 0.5 meters), collect the discharged debris samples, and package after labeling the depth interval;

[0020] S4, adjust the geologic simulation area to a hardening geologic impact-sampling linkage mode;

[0021] S4.1, connect the linkage mechanism, pull the movable rod outward to make it slide out of the sleeve rod, extend through the groove to the position of the thread groove of the sliding block, rotate the movable rod clockwise to make the external thread engage with the thread groove and tighten, ensure that the sliding block and the groove are rigidly connected through the sleeve rod, and verify the tightness of the linkage mechanism: manually push the sliding block up and down to observe whether the rotating column rotates with it;

[0022] S4.2, start the impact mechanism and linkage sampling, turn off the second drive motor, start the first drive motor through the integrated control system, the swing arm rotates with the motor, the connecting rod connected by the universal joint converts the circular motion into the linear reciprocating motion of the slider in the sliding slot, and the swing arm rotates one circle, the slider drives the geological impact hammer to complete one down impact (break hard rock) and up reset;

[0023] S4.3, the impact force is transmitted to the sampling mechanism, the up and down movement of the slider pushes the sleeve rod through the movable rod, forcing the rotating column to rotate alternately in the groove, the sampling drill bit rotates with the driving shaft, and the broken rock is discharged through the drill bit spiral blade or external slag discharge system;

[0024] S4.4, synchronous sampling and data recording, during the impact process, the impact frequency, depth and sampling drill bit rotation speed data of the geological impact hammer are collected in real time (through the integrated control system sensor), the discharged debris is collected according to the impact times or depth interval, marked as "impact-linkage mode sample", and the corresponding impact parameters are recorded;

[0025] S5, stop the device and disassemble, turn off the first drive motor or the second drive motor, lift the drill bit and impact hammer to a safe height, soft mode: keep the linkage mechanism disconnected, clean the sampling drill bit blade, hard mode: rotate the movable rod counterclockwise to exit the threaded groove, reset to the sleeve rod, disassemble the geological impact hammer (if replacement or maintenance is required);

[0026] S6, sample processing and data analysis, classify the collected debris samples according to the mode (independent sampling / impact linkage), perform laboratory analysis (such as particle size, composition, density), and combine the impact force, rotation speed and other parameters recorded by the integrated control system to simulate the stress field distribution characteristics of the formation;

[0027] S7, check the lubrication state of the sliding slot and the slider, clean the debris residue, verify the connection stability of the universal joint connecting rod and the swing arm, replace the worn ball head if necessary, calibrate the sensor data accuracy of the integrated control system, and update the control program parameters.

[0028] Compared with the prior art, the present application can achieve the following beneficial effects:

[0029] 1. The drive requirements of the impact mechanism and the sampling mechanism are integrated through the linkage mechanism, only a single drive source (first drive motor) is needed to synchronously drive the geological impact hammer and the sampling drill bit, completely eliminating the energy redundancy of the traditional double-motor parallel operation, reducing the energy consumption compared with the traditional system, and significantly improving the energy utilization efficiency. In soft geological mode, the linkage can be quickly released, and the second drive motor can be used alone for low-power sampling; in hard stratum, the linkage mechanism converts the reciprocating motion of the slider into the forward and reverse power of the sampling drill bit, without the need for additional power supply. The two modes can be intelligently switched according to the geological conditions, further optimizing the energy distribution efficiency.

[0030] 2. Through the threaded linkage of the slider, movable rod and sleeve rod, the mechanical coupling of the impact and sampling actions is realized, and the complex multi-motor synchronous control circuit is omitted. The system only needs to control the speed and start-stop of a single driving source, the circuit design complexity is reduced, the linkage mechanism adopts a quick connection mode of external thread and thread groove, the impact-sampling linkage state can be manually switched without the need for special tools, the detachable connection of the impact hammer and the slider further simplifies the maintenance process and reduces the cost of spare parts replacement.

[0031] 3. Under the hard stratum, the up-down reciprocating motion of the slider is converted into the forward-reverse rotation cutting action of the sampling drill bit through the linkage mechanism, and the forward-reverse rotation frequency is strictly synchronized with the impact frequency (once impact corresponds to once forward-reverse rotation), this design breaks through the cutting limitation of the traditional one-way drill bit, improves the hard rock breaking efficiency, and significantly improves the continuity of the debris discharge. Independent sampling under soft geological conditions can avoid the damage of impact vibration to the loose structure; the linkage mode under the hard stratum forms a complex effect of "vibration crushing + rotary debris removal" through the transmission of impact waves and dynamic cutting of the drill bit, which is especially suitable for complex rock mass simulation containing fissures or stratification structure, and has wider geological adaptability.

[0032] 4. The linkage mechanism directly converts the linear kinetic energy of the impact mechanism into the rotary kinetic energy of the sampling mechanism, avoiding the overload risk caused by uneven load of the traditional double motors, the work load of the single driving source is more balanced, the expected service life of the motor is improved, the impact mechanism and the sampling mechanism can operate independently after the linkage is released, and the basic functions of either module are not affected when one module fails, the system fault tolerance is significantly improved, at the same time, the mechanical linkage reduces the fault points by % compared with the electrical linkage, and the maintenance period is prolonged.

[0033] 5. Through the crank slider mechanism composed of swing arm-connecting rod-slider, the impact frequency and stroke of the impact hammer are strictly controllable (once complete impact corresponds to one rotation of the swing arm), cooperating with the forward-reverse phase locking of the sampling drill bit, the spatiotemporal synchronicity of stress field disturbance and sample collection is realized, and the experimental data error rate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the structure of the present application in a three-dimensional state;

[0035] Figure 2 is a schematic diagram of the overall structure of the support frame of the present application in a three-dimensional state;

[0036] Figure 3 is a schematic diagram of the structure of the impact mechanism, linkage mechanism and sampling mechanism of the present application in a three-dimensional state;

[0037] Figure 4 is a schematic diagram of the structure of the impact mechanism of the present application in a three-dimensional state;

[0038] Figure 5This is a three-dimensional schematic diagram of the impact mechanism and linkage mechanism of the present invention;

[0039] Figure 6 For the present invention Figure 5 Front sectional view of the structure;

[0040] Figure 7 This is a three-dimensional schematic diagram of the linkage mechanism and sampling mechanism of the present invention.

[0041] The components include: 1. Geological structure simulation site; 2. Integrated control system; 3. Support frame; 4. Geological simulation area; 5. Connection center; 6. Impact mechanism; 61. First mounting frame; 62. First drive motor; 63. Swing arm; 64. Connecting rod; 65. Hinge seat; 66. Slider; 67. Slide groove; 68. Geological impact hammer; 7. Linkage mechanism; 71. Slotting; 72. Threaded groove; 73. Sleeve rod; 74. Movable rod; 75. External thread; 8. Sampling mechanism; 81. Second mounting frame; 82. Rotary column; 83. Groove; 84. Second drive motor; 85. Drive shaft; 86. Sampling drill bit. Detailed Implementation

[0042] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0043] Example:

[0044] Example 1: As Figure 1 - Figure 7 As shown in the figure, this embodiment proposes an intelligent geological structure stress field simulation system. An integrated control system 2 is installed on the geological structure simulation site 1. A support frame 3 is installed on the geological structure simulation site 1. A geological simulation area 4 is set at the front end of the geological structure simulation site 1. A connection center 5 is set on the support frame 3. An impact mechanism 6 is installed on one side of the connection center 5. A sampling mechanism 8 is installed on the other side of the connection center 5. A linkage mechanism 7 is connected inside the sampling mechanism 8. The other end of the linkage mechanism 7 is connected to the impact mechanism 6. The impact mechanism 6 and the linkage mechanism 7 cooperate to drive the sampling mechanism 8 to work synchronously through a drive source. The linkage mechanism 7 and the impact mechanism 6 are threadedly connected for fixation and disassembly.

[0045] The impact mechanism 6 comprises a first mounting frame 61 fixedly mounted on the outer wall of the connecting center 5, a first driving motor 62 arranged on the top end of the first mounting frame 61, a swing arm 63 fixedly connected with the output shaft of the first driving motor 62, a connecting rod 64 movably connected with one end of the swing arm 63, a hinged seat 65 hingedly connected with the other end of the connecting rod 64, a sliding block 66 connected with the hinged seat 65, a sliding groove 67 formed in the first mounting frame 61 and slidably connected with the sliding block 66, and a geological impact hammer 68 mounted on the bottom end of the outer wall of the sliding block 66.

[0046] A linkage mechanism 7 is formed in the first mounting frame 61 and is threadedly connected with the sliding block 66. The linkage mechanism 7 (movable rod + sleeve rod) serves as a physical connection medium between the impact mechanism 6 and the sampling mechanism 8. The power transmission and separation of the two are realized through threaded connection. The linkage mechanism 7 comprises a slot 71 formed in the side wall of the first mounting frame 61, a threaded groove 72 arranged in the sliding block 66, an external thread 75 threadedly connected with the threaded groove 72, a movable rod 74 provided with the external thread 75, and a sleeve rod 73 slidably connected with the movable rod 74.

[0047] The sampling mechanism 8 comprises a second mounting frame 81 mounted on the outer wall of the connecting center 5, a rotating column 82 rotatably connected in the second mounting frame 81, a groove 83 formed in the outer wall of the rotating column 82, a second driving motor 84 mounted on the top end of the second mounting frame 81 and having an output shaft connected with the rotating column 82, a driving shaft 85 connected with the bottom end of the rotating column 82, and a sampling drill bit 86 connected with the driving shaft 85. The sleeve rod 73 is connected in the groove 83.

[0048] When the geological simulation area 4 simulates soft geology, the staff can rotate the movable rod 74, so that the movable rod 74 rotates outwardly in the sleeve rod 73, and the end of the movable rod 74 rotates outwardly through the cooperation of the external thread 75 and the threaded groove 72 until the movable rod 74 is pulled out of the threaded groove 72 and moves to the sleeve rod 73 away from the slot 71, thereby releasing the connection between the impact mechanism 6 and the sampling mechanism 8. At this time, the driving switch of the second driving motor 84 can be pressed to directly drive the rotating column 82 to rotate. The rotating column 82 drives the sampling drill bit 86 to rotate through the driving shaft 85. The blades on the sampling drill bit 86 cut the soil. After cutting the soil, the blades continuously take out the soil fragments from the ground for collection and sampling.

[0049] When the geological simulation area 4 simulates the geological complexity hardening, the slot 71 is arranged in the first mounting frame 61 to the sliding groove 67, the end of the movable rod 74 is provided with an external thread 75, the slot 71 extends into the sliding groove 67 to provide a guide path for the sliding of the movable rod 74, and the external thread 75 and the thread groove 72 are matched to allow manual rotation operation (without tools), so as to meet the efficiency requirement of rapid switching mode in the field or laboratory environment, the staff can pull the movable rod 74 outward, so that the movable rod 74 slides outward in the sleeve rod 73 and is inserted into the thread groove 72, at this time, the movable rod 74 is rotated to make the external thread 75 and the thread groove 72 cooperate to rotate inward and tighten, so that the sliding block 66 is connected with the groove 83 through the linkage mechanism 7, at this time, the first driving motor 62 is started to drive the swing arm 63 to rotate, it is to be explained that the upper end of the connecting rod 64 is provided as a ball, the upper end of the connecting rod 64 is connected with the swing arm 63 through a universal joint, the swing arm 63 rotates to drive the ball at the end of the connecting rod 64 to rotate, so as to drive the other end to move linearly, when the swing arm 63 rotates, the upper end of the connecting rod 64 needs to adapt to the circumferential motion track of the swing arm 63, and the sliding block 66 can only move linearly along the sliding groove 67, the ball universal joint can compensate the geometric deviation of the motion tracks of the two, so as to avoid that the mechanism is stuck or additional stress is generated, the other end of the connecting rod 64 drives the hinged seat 65 to move, the hinged seat 65 slides up and down in the sliding groove 67 through the sliding block 66, and the sliding block 66 reciprocatingly moves up and down to drive the geological impact hammer 68 to impact and crush the geology of the geological simulation area 4, the movable rod 74 linearly slides and rotates in the sleeve rod 73, and the sleeve rod 73 is connected with the sampling mechanism 8, in the connection / separation mode, the movable rod 74 needs to slide axially along the sleeve rod 73 to align the thread groove 72, so as to realize the space adjustment of mechanical docking, in the thread tightening / loosening mode, the movable rod 74 needs to rotate to complete the thread engagement or disengagement, the sliding bearing design on the inner wall of the sleeve rod 73 ensures smooth rotation, at the same time, the movable rod 74 follows the sliding block 66 to slide in the groove 83 through the sleeve rod 73, so as to drive the rotating column 82 to rotate, the rotating column 82 rotates to drive the sampling drill bit 86 to rotate through the driving shaft 85, it is to be noted that the second driving motor 84 is not working at this time, and there is only one driving source of the first driving motor 62, in addition, the reciprocating movement of the sliding block 66 drives the sampling drill bit 86 to rotate forward and reverse once, and the sampling drill bit 86 rotating forward and reverse is more likely to damage the geology and sample the debris.

[0050] It is worth noting that the swing arm 63 rotates a circle to drive the slider 66 to reciprocate up and down in the sliding groove 67 once, the bottom end of the slider 66 is detachably connected with the geological impact hammer 68, the swing arm 63-rod 64-slider 66 constitutes a crank slider mechanism, the swing arm 63 rotates a circle, and the slider 66 completes an up-down impact, which ensures that the impact frequency and the mechanical cycle strictly correspond, facilitates the matching of the impact energy and the sampling rhythm, allows the replacement of hammer heads with different weights or materials, adjusts the impact force (such as heavy hammer for hard rock layer and light hammer for loose layer), and adjusts the radius of the swing arm 63 (implicit design): if the length of the swing arm 63 is variable, the stroke of the slider 66 can be further adjusted to adapt to different impact depth requirements;

[0051] In summary, it can be summarized as soft geology (independent sampling mode):

[0052] Disconnect the linkage, and the second drive motor 84 directly drives the sampling drill bit 86 to rotate and cut, avoids hole wall collapse caused by impact disturbance, and obtains a relatively complete debris sample.

[0053] Hardened geology (linkage impact-sampling mode):

[0054] The geological impact hammer 68 breaks the rock layer, and the sampling drill bit 86 cuts through the linkage mechanism 7, which improves the debris discharge efficiency and solves the problem of hard rock sampling.

[0055] Embodiment two: as shown in a kind of intelligent geological structure stress field simulation system usage method, it is characterized in that the following steps are included: Figures 1-7

[0056] S1, stably install the support frame 3 on the geological structure simulation site 1, ensure its perpendicularity and levelness, check whether the impact mechanism 6 and the sampling mechanism 8 on both sides of the connecting center 5 are firmly installed, confirm that the linkage mechanism 7 (movable rod 74, sleeve rod 73) is in an operable state, and ensure that the first drive motor 62 and the second drive motor 84 are in normal operation through integrated control system 2 power-on self-test;

[0057] S2, according to the experimental requirements, fill the simulated soil or rock (loose sand, clay, hard rock, etc.) in the geological simulation area 4, adjust the initial height of the geological impact hammer 68 and the sampling drill bit 86, and avoid early contact with the simulated stratum;

[0058] S3, the geological simulation area 4 is adjusted to the soft geology independent sampling mode;

[0059] ​S3.1, disconnect the linkage mechanism 7, the operator rotates the movable rod 74 counterclockwise, the external thread 75 is out of the threaded groove 72 of the sliding block 66, pull the movable rod 74 back to the sleeve rod 73 completely, make sure it is disengaged from the slot 71, release the connection between the impact mechanism 6 and the sampling mechanism 8, check whether the recess 83 is separated from the sleeve rod 73 to avoid motion interference;

[0060] S3.2, open the second drive motor 84 through the integrated control system 2, drive the rotating column 82 to rotate clockwise with the drive shaft 85 and the sampling drill bit 86, control the drill bit to press down slowly to the simulated stratum, use the blade to cut the soil, the debris is discharged to the ground through the drill bit blade or the debris discharge channel, pause according to the preset depth (such as every 0.5 meters), collect the discharged debris sample, package after labeling the depth interval;

[0061] S4, the geological simulation area 4 is adjusted to the hardened geological impact-sampling linkage mode;

[0062] S4.1, connect the linkage mechanism 7, pull the movable rod 74 outward, make it slide out of the sleeve rod 73, extend through the slot 71 to the position of the threaded groove 72 of the sliding block 66, rotate the movable rod 74 clockwise, make the external thread 75 engage and tighten with the threaded groove 72, make sure that the sliding block 66 is rigidly connected with the recess 83 through the sleeve rod 73, verify the tightness of the linkage mechanism 7: manually push the sliding block 66 to slide up and down, observe whether the rotating column 82 rotates with it;

[0063] S4.2, start the impact mechanism 6 and the linkage sampling, close the second drive motor 84, start the first drive motor 62 through the integrated control system 2, the swing arm 63 rotates with the motor, the connecting rod 64 connected through the universal joint converts the circular motion into the linear reciprocating motion of the sliding block 66 in the sliding groove 67, the swing arm 63 rotates one circle, the sliding block 66 drives the geological impact hammer 68 to complete one down-impact (break hard rock) and up-reset;

[0064] S4.3, the impact force is transmitted to the sampling mechanism 8, the up-down motion of the sliding block 66 pushes the sleeve rod 73 through the movable rod 74, forces the rotating column 82 to rotate alternately in the recess 83, the sampling drill bit 86 rotates alternately with the drive shaft 85, the broken debris is discharged through the drill bit helical blade or the external debris discharge system;

[0065] S4.4, synchronize sampling and data recording, during the impact process, real-time collect the impact frequency, depth and rotation speed data of the geological impact hammer 68 (through the sensors of the integrated control system 2), collect the discharged debris according to the impact times or depth interval, mark as "impact-linkage mode sample", record the corresponding impact parameters;

[0066] S5, stop the device and disassembly, turn off the first drive motor 62 or the second drive motor 84, lift the drill bit and the impact hammer to a safe height, soft mode: keep the linkage mechanism 7 disconnected, clean the cutter of the sampling drill bit 86, hard mode: rotate the movable rod 74 counterclockwise to exit the threaded groove 72, reset into the sleeve rod 73, disassemble the geological impact hammer 68 (if replacement or maintenance is required);

[0067] S6, sample processing and data analysis, classify the collected debris samples according to the mode (independent sampling / impact linkage), perform laboratory analysis (such as particle size, composition, and density), and combine the impact force, rotation speed, and other parameters recorded by the integrated control system 2 to simulate the stress field distribution characteristics of the formation;

[0068] S7, check the lubrication state of the sliding groove 67 and the sliding block 66, clean the debris residue, verify the connection stability of the universal joint connecting rod 64 and the swing arm 63, replace the worn ball head if necessary, calibrate the sensor data accuracy of the integrated control system 2, and update the control program parameters.

[0069] In the present application, unless otherwise explicitly specified and limited, the "on" or "under" of the first feature to the second feature can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the "on", "above" and "above" of the first feature to the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than the second feature. The "under", "below" and "below" of the first feature to the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than the second feature.

[0070] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An intelligent geologic structure stress field simulation system comprising a geologic structure simulation field (1), characterized in that: The geological structure simulation site (1) is provided with an integrated control system (2), the geological structure simulation site (1) is provided with a support frame (3), the front end of the geological structure simulation site (1) is provided with a geological simulation area (4), the support frame (3) is provided with a connection center (5), one side of the connection center (5) is provided with an impact mechanism (6), the other side of the connection center (5) is provided with a sampling mechanism (8), the sampling mechanism (8) is connected with a linkage mechanism (7), the other end of the linkage mechanism (7) is connected with the impact mechanism (6), the impact mechanism (6) and the linkage mechanism (7) are matched to drive the sampling mechanism (8) to work synchronously through a driving source, and the linkage mechanism (7) and the impact mechanism (6) are threadedly connected, fixed, disassembled and attached; The impact mechanism (6) comprises a first mounting frame (61) fixedly mounted on the outer wall of the connection center (5), a first driving motor (62) arranged on the top end of the first mounting frame (61), a swing arm (63) fixedly connected with the output shaft of the first driving motor (62), a connecting rod (64) movably connected with one end of the swing arm (63), a hinged seat (65) hingedly connected with the other end of the connecting rod (64), a sliding block (66) connected with the hinged seat (65), a sliding groove (67) formed in the first mounting frame (61) and in sliding connection with the sliding block (66), and a geological impact hammer (68) mounted on the bottom outer wall of the sliding block (66). The swing arm (63) rotates one circle to drive the sliding block (66) to reciprocate up and down in the sliding groove (67) once, and the bottom end of the sliding block (66) is detachably connected with the geological impact hammer (68). A linkage mechanism (7) is formed in the first mounting frame (61), and the linkage mechanism (7) penetrates through the first mounting frame (61) and is threadedly connected with the sliding block (66). The linkage mechanism (7) comprises a slot (71) formed in the side wall of the first mounting frame (61), a threaded groove (72) arranged in the sliding block (66), an external thread (75) threadedly connected with the threaded groove (72), a movable rod (74) provided with the external thread (75), and a sleeve rod (73) slidably connected with the movable rod (74). The movable rod (74) linearly slides and rotationally connects in the sleeve rod (73), and the sleeve rod (73) is connected to the sampling mechanism (8). The sampling mechanism (8) comprises a second mounting frame (81) mounted on the outer wall of the connection center (5), a rotating column (82) rotationally connected in the second mounting frame (81), a groove (83) formed in the outer wall of the rotating column (82), a second driving motor (84) mounted on the top end of the second mounting frame (81) and having an output shaft connected with the rotating column (82), a driving shaft (85) connected to the bottom end of the rotating column (82), and a sampling drill bit (86) connected with the driving shaft (85); and the groove (83) is connected with the sleeve rod (73).

2. The intelligent geologic structure stress field modeling system of claim 1, wherein: The upper end of the connecting rod (64) is provided as a spherical body, and the upper end of the connecting rod (64) is movably connected with the swing arm (63) through a universal joint.

3. The intelligent geologic structure stress field modeling system of claim 1, wherein: The slot (71) is opened through the first mounting frame (61) to the sliding groove (67), and the end of the movable rod (74) is provided with an external thread (75).

4. The use method of the intelligent geological structure stress field simulation system according to any one of claims 1-3, characterized in that: S1, firmly install the support frame (3) on the geological structure simulation site (1), ensure its perpendicularity and levelness, check whether the impact mechanism (6) and the sampling mechanism (8) on both sides of the connecting center (5) are firmly installed, confirm that the movable rod (74) and the sleeve rod (73) of the linkage mechanism (7) are in an operable state, and perform self-checking through the integrated control system (2) to ensure that the first drive motor (62) and the second drive motor (84) are operating normally; S2, according to the experimental requirements, fill the simulated soil or rock, loose sand, clay, and hard rock in the geological simulation area (4), and adjust the initial height of the geological impact hammer (68) and the sampling drill bit (86) to avoid early contact with the simulated stratum; S3, adjust the geological simulation area (4) to the soft geological independent sampling mode; S4, disconnect the linkage mechanism (7), rotate the movable rod (74) counterclockwise, make the external thread (75) of the movable rod (74) exit from the threaded slot (72) of the sliding block (66), pull the movable rod (74) back into the sleeve rod (73) completely, ensure that the movable rod (74) is disconnected from the slot (71), disconnect the impact mechanism (6) and the sampling mechanism (8), check whether the groove (83) and the sleeve rod (73) are disconnected to avoid motion interference; S5, start the second drive motor (84) through the integrated control system (2), drive the rotating column (82) to rotate the drive shaft (85) and the sampling drill bit (86) clockwise, control the drill bit to press down slowly to the simulated stratum, cut the soil with the blade, and discharge the cuttings to the ground surface through the drill bit blade or the discharge channel, pause every 0.5 meters according to the preset depth, collect the discharged cuttings samples, label the depth interval, and then package; S6, adjust the geological simulation area (4) to the hardening geological impact sampling linkage mode; S7, connect the linkage mechanism (7), pull the movable rod (74) outward, make it slide out of the sleeve rod (73), extend through the slot (71) to the position of the threaded slot (72) of the sliding block (66), rotate the movable rod (74) clockwise, make the external thread (75) engage with the threaded slot (72), tighten, ensure that the sliding block (66) and the groove (83) are rigidly connected through the sleeve rod (73), verify the tightness of the linkage mechanism (7): manually push the sliding block (66) up and down, and observe whether the rotating column (82) rotates; S8, start the impact mechanism (6) and the linkage sampling, close the second drive motor (84), start the first drive motor (62) through the integrated control system (2), rotate the swing arm (63) with the motor, convert the circular motion into the linear reciprocating motion of the sliding block (66) in the sliding groove (67) through the connecting rod (64) connected by the universal joint, and the sliding block (66) drives the geological impact hammer (68) to complete one press-down impact and breakage of hard rock and one lifting reset for each rotation of the swing arm (63). S9, the impact force is transmitted to the sampling mechanism (8), the up-down movement of the slider (66) pushes the sleeve rod (73) through the movable rod (74), forcing the rotating column (82) to rotate alternately in forward and reverse directions, the sampling drill bit (86) rotates in forward and reverse directions with the driving shaft (85), and the broken rock debris is discharged through the drill bit spiral blade or external discharge system; S10, synchronous sampling and data recording, during the impact process, the impact frequency, depth and rotation speed data of the geological impact hammer (68) are collected in real time, the discharged debris is collected according to the impact times or depth interval, and is marked as the impact linkage mode sample, and the corresponding impact parameters are recorded; S11, stop the equipment and disassemble, turn off the first driving motor (62) or the second driving motor (84), lift the drill bit and the impact hammer to a safe height, soft mode: keep the linkage mechanism (7) disconnected, clean the blade of the sampling drill bit (86), hard mode: rotate the movable rod (74) counterclockwise to exit the threaded groove (72), reset to the sleeve rod (73), and disassemble the geological impact hammer 68; S12, sample processing and data analysis, classify the collected debris samples according to the mode, perform laboratory analysis, combine the recorded parameters of the integrated control system (2), and simulate the stress field distribution characteristics of the stratum; S13, check the lubrication state of the sliding groove (67) and the slider (66), clean the debris residue, verify the connection stability of the universal joint connecting rod (64) and the swing arm (63), replace the worn ball head, calibrate the sensor data accuracy of the integrated control system (2), and update the control program parameters.

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