Triaxial loading adjustable blast hole analog simulation experiment device
By designing a three-axis loading adjustable borehole similarity simulation experimental device, the flexible adjustment and real-time monitoring of borehole position, angle and depth were realized, solving the problems of diversity and accuracy of existing devices, and improving the efficiency of experiments and data support.
Patent Information
- Application Number
- CN202423277900.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing blasting simulation experimental devices cannot flexibly adjust the diameter, depth and spacing of the boreholes, and cannot achieve triaxial stress loading, which affects the diversity and accuracy of the experiments.
A triaxial loading adjustable borehole similarity simulation experimental device was designed. The device achieves precise adjustment of the borehole position, angle and depth through components such as slide rail, positioning guide rail, guide sleeve and protractor, and is equipped with stress, displacement, acoustic emission and temperature sensors for real-time monitoring.
It enhances the diversity and accuracy of experiments, meets different experimental needs, and provides strong data support through real-time monitoring, thereby reducing experimental costs and time costs.
Smart Images
Figure CN223581073U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of similarity simulation experiment technology, specifically relating to a triaxial loading adjustable borehole similarity simulation experiment device. Background Technology
[0002] In fields such as geotechnical engineering, blasting engineering, and mining, exploring the impact of rock blasting on safe production is crucial. However, due to the complexity and diversity of geological conditions, in-situ experiments are often difficult to control. To more accurately recreate the conditions at the engineering site, researchers typically use similarity simulation experiments. This type of blasting similarity simulation experiment is based on similarity theory and uses small-scale models to simulate blasting problems in actual engineering projects.
[0003] However, current blasting similarity simulation experimental devices have some limitations. For example, many devices can only simulate boreholes of fixed size, and cannot flexibly adjust the diameter, depth, and spacing of the boreholes according to the specific requirements of the experiment, which affects the diversity and accuracy of the experiment. In addition, due to the small size of the device, it cannot realize the triaxial stress loading function, and therefore cannot accurately reflect the stress state of the model. To address these problems, a triaxial loading adjustable borehole similarity simulation experimental device is proposed. Utility Model Content
[0004] This invention proposes a triaxial loading adjustable borehole similarity simulation experimental device to solve the problem in the prior art that the diameter, depth and spacing of the borehole cannot be flexibly adjusted according to the specific requirements of the experiment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a triaxial loading adjustable borehole similarity simulation experimental device, comprising:
[0006] The enclosure consists of a box and multiple steel sections;
[0007] Multiple slide rails are evenly arranged on the inner wall of the box. The upper and lower sides of the multiple slide rails are respectively provided with upper guide rails and lower guide rails. Both the upper guide rails and the lower guide rails are provided with positioning guide rails.
[0008] Two positioning blocks are respectively set on two positioning guide rails, and a common guide sleeve is provided between the two positioning blocks. A protractor is provided on one side of the guide sleeve.
[0009] Multiple jacks are respectively set on one side of multiple steel bodies. The output ends of the multiple jacks located on the same side are provided with the same steel plate. The multiple steel plates are all against the outside of the box body. The multiple steel bodies are all provided with monitoring structures.
[0010] In a preferred embodiment, both positioning guide rails and guide sleeves are equipped with scales.
[0011] In a preferred embodiment, both ends of the two positioning guide rails are provided with fixing blocks, and the two fixing blocks located at the same horizontal height are respectively set on the upper guide rail and the lower guide rail.
[0012] In a preferred embodiment, the straight edge of the protractor is aligned with the axis of the guide sleeve, and a plumb bob is suspended at the center point of the straight edge of the protractor.
[0013] In a preferred embodiment, the monitoring structure includes multiple stress sensors, multiple displacement sensors, multiple acoustic emission sensors, and multiple temperature sensors disposed on the inner wall of the chamber. The multiple monitoring structures are connected to each other via signal lines and are connected to the same computer.
[0014] In a preferred embodiment, the plurality of stress sensors, the plurality of displacement sensors, the plurality of acoustic emission sensors, and the plurality of temperature sensors are respectively located on one side of the plurality of steel plates.
[0015] Compared with existing technologies, the advantages of this invention are as follows: Firstly, it allows for flexible adjustment of the borehole diameter, angle, length, and spacing, greatly enhancing the diversity and accuracy of experiments and better meeting diverse experimental needs. Secondly, the monitoring system can monitor key parameters such as stress, strain, temperature, and vibration in real time, providing strong support for the acquisition and analysis of experimental data. Furthermore, the experimental device has a simple structure, is easy to operate, maintain, and repair, reducing experimental costs and time, and providing strong support for scientific research and technological advancement in fields such as geotechnical engineering, blasting engineering, and mining. Attached Figure Description
[0016] Figure 1 This is a main structural diagram of the present utility model;
[0017] Figure 2 This is a side view of the structure of this utility model;
[0018] Figure 3 This is a top view of the structure of this utility model;
[0019] Figure 4 for Figure 1 Enlarged structural diagram at point A;
[0020] Figure 5 for Figure 2 Enlarged structural diagram at point B;
[0021] Figure 6 for Figure 2 Enlarged structural diagram at point C;
[0022] Figure 7 for Figure 3 A magnified schematic diagram of the structure at point D.
[0023] In the diagram: 1. Upper guide rail; 2. Lower guide rail; 3. Guide sleeve; 4. Protractor; 5. Plumb bob; 6. Positioning block; 7. Fixing block; 8. Signal line; 9. Steel plate; 10. Jack; 11. Steel body; 12. Slide rail; 13. Box; 14. Positioning guide rail; 15. Computer; 16. Stress sensor; 17. Displacement sensor; 18. Acoustic emission sensor; 19. Temperature sensor. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Example 1:
[0026] Please see Figure 1-4 This utility model provides a triaxial loading adjustable borehole similarity simulation experimental device, comprising:
[0027] Box 13 and multiple steel bodies 11;
[0028] Multiple slide rails 12 are evenly arranged on the inner wall of the housing 13. The upper and lower sides of the multiple slide rails 12 are respectively provided with upper guide rails 1 and lower guide rails 2. Both upper guide rails 1 and lower guide rails 2 are provided with positioning guide rails 14.
[0029] Two positioning blocks 6 are respectively set on two positioning guide rails 14, and a common guide sleeve 3 is provided between the two positioning blocks 6. A protractor 4 is provided on one side of the guide sleeve 3.
[0030] Multiple jacks 10 are respectively set on one side of multiple steel bodies 11. The output end of multiple jacks 10 located on the same side is provided with the same steel plate 9. Multiple steel plates 9 are all against the outside of the box 13. Multiple steel bodies 11 are all provided with monitoring structures.
[0031] Specifically, such as Figure 3 , Figure 5 and Figure 6 As shown, both positioning guide rails 14 and guide sleeve 3 are equipped with scales, which can precisely adjust the position of the blast hole.
[0032] Specifically, such as Figure 1 and Figure 2 As shown, both ends of the two positioning guide rails 14 are provided with fixing blocks 7. The two fixing blocks 7, located at the same horizontal height, are respectively set on the upper guide rail 1 and the lower guide rail 2. The fixing blocks 7 can adjust the position of the positioning guide rails 14 and fix their position.
[0033] Specifically, such as Figure 1 and Figure 5As shown, the straight edge of the protractor 4 is in the same direction as the axis of the guide sleeve 3. A plumb block 5 is suspended at the center point of the straight edge of the protractor 4, which can be used to observe the angle that the blast hole should be set at.
[0034] Specifically, such as Figure 1 and Figure 4 As shown, the monitoring structure includes multiple stress sensors 16, multiple displacement sensors 17, multiple acoustic emission sensors 18 and multiple temperature sensors 19 installed on the inner wall of the housing 13. The multiple monitoring structures are connected by signal lines 8 and are connected to the same computer 15.
[0035] Specifically, such as Figure 4 As shown, multiple stress sensors 16, multiple displacement sensors 17, multiple acoustic emission sensors 18, and multiple temperature sensors 19 are located on one side of multiple steel plates 9, which can monitor key parameters such as stress, strain, temperature, and vibration in real time.
[0036] See Figure 1-4 Positioning the blast hole: Move the positioning block 6 along the graduated positioning guide rail 14 until the exact position of the blast hole is determined and marked.
[0037] Set the borehole diameter: Adjust the scale to match the desired borehole diameter.
[0038] Determine the borehole angle: Ensure that the plumb line is parallel to the surface of the protractor 4. Then, read the reading on the protractor 4 to obtain the angle that the borehole should be set at.
[0039] Measuring the length of the borehole: By adjusting the positions of the upper guide rail 1 and the lower guide rail 2, and observing the scale on the guide sleeve 3, the length of the borehole can be accurately determined.
[0040] Setting the borehole spacing: The spacing between boreholes can be precisely set by adjusting the relative positions of the upper guide rail 1 and the lower guide rail 2 or the guide sleeve 3.
[0041] In the preparation stage of the blasting simulation test, after the position, angle, and depth of the blast hole are set, the adjustable blast hole module is then embedded into the still uncured cement mortar to form the blast hole after it has completely solidified.
[0042] Explosives and sealing materials are placed into the borehole and the blasting fuse is connected. Then, the box 13 is fixed around the perimeter with steel plates 9, and hydraulic jacks 10 are used to pressurize the box 13 until the preset pressure value is reached to simulate the pressure conditions of rocks in actual blasting.
[0043] Strain gauges, surveillance cameras, and other equipment are connected to a monitoring system to monitor stress-strain data and the failure process of the surrounding rock in real time during the blasting operation. Based on the processed data, the accuracy and reliability of the blasting effect, as well as the accuracy and reliability of the experimental apparatus and methods, are evaluated.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A triaxially loaded adjustable borehole similarity simulation experimental device, characterized in that, include: Box (13) and multiple steel bodies (11); Multiple slide rails (12) are evenly arranged on the inner wall of the box (13). The upper guide rail (1) and the lower guide rail (2) are respectively provided on the upper and lower sides of the multiple slide rails (12). The upper guide rail (1) and the lower guide rail (2) are both provided with positioning guide rails (14). Two positioning blocks (6) are respectively set on two positioning guide rails (14), and the same guide sleeve (3) is provided between the two positioning blocks (6). A protractor (4) is provided on one side of the guide sleeve (3). Multiple jacks (10) are respectively set on one side of multiple steel bodies (11). The output ends of the multiple jacks (10) located on the same side are provided with the same steel plate (9). The multiple steel plates (9) are all against the outside of the box body (13). The multiple steel bodies (11) are all provided with monitoring structures.
2. The triaxial loading adjustable borehole similarity simulation experimental device according to claim 1, characterized in that: Both of the positioning guide rails (14) and the guide sleeve (3) are equipped with scales.
3. The triaxial loading adjustable borehole similarity simulation experimental device according to claim 1, characterized in that: Both ends of the two positioning guide rails (14) are provided with fixing blocks (7), and the two fixing blocks (7) located at the same horizontal height are respectively set on the upper guide rail (1) and the lower guide rail (2).
4. The triaxial loading adjustable borehole similarity simulation experimental device according to claim 1, characterized in that: The straight edge of the protractor (4) is in the same direction as the axis of the guide sleeve (3), and a plumb block (5) is suspended at the center point of the straight edge of the protractor (4).
5. The triaxial loading adjustable borehole similarity simulation experimental device according to claim 1, characterized in that: The monitoring structure includes multiple stress sensors (16), multiple displacement sensors (17), multiple acoustic emission sensors (18) and multiple temperature sensors (19) installed on the inner wall of the housing (13). The multiple monitoring structures are connected by signal lines (8) and are connected to the same computer (15).
6. The triaxial loading adjustable borehole similarity simulation experimental device according to claim 5, characterized in that: Multiple stress sensors (16), multiple displacement sensors (17), multiple acoustic emission sensors (18) and multiple temperature sensors (19) are located on one side of multiple steel plates (9).