Hydraulic ring geological crack measuring device
By combining infrared reflectors and rangefinders embedded at the cracks, the problem of geological crack measurement devices being susceptible to external forces was solved, enabling high-precision crack expansion monitoring and real-time data transmission, thus avoiding data loss.
Patent Information
- Application Number
- CN202423085118.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing geological fracture measurement devices are easily affected by external forces, resulting in large errors in monitoring results, data loss due to misalignment of the measuring needle, and inability to collect information on fracture expansion in a timely manner.
A hydrogeological crack measurement device is used, which is buried at the crack location. It uses an infrared reflector and a rangefinder to monitor crack expansion in real time. The infrared reflector and rangefinder work together to avoid device misalignment and ensure data accuracy.
It improves the accuracy of crack propagation survey data, monitors crack changes in real time, avoids data loss, and has a simple structure and low cost.
Smart Images
Figure CN223500354U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of geological monitoring technology, and in particular to a hydrogeological monitoring device, specifically a hydrogeological crack measuring device. Background Technology
[0002] Hydrogeology and environmental geology is a collective term encompassing hydrogeology, engineering geology, and environmental geology. It primarily involves investigating and evaluating the geological conditions of groundwater resources, engineering construction, and the natural environment. Ground fissures are progressive disasters that develop gradually. Based on their causes, they can be divided into two main categories: one is tectonic ground fissures formed by internal forces, such as earthquake fissures, active ground fissures due to basement faults, and fissures that open from hidden fissures; the other is non-tectonic ground fissures, which are ground fissures formed by external forces, such as ground fissures caused by erosion in loose soil, ground fissures in loess collapsing soil, ground fissures caused by expansion and contraction in expansive soil, and ground fissures caused by landslides. Tectonic ground fissures extend stably and are not affected by surface topography, soil and rock properties, or other geological conditions.
[0003] Currently, after measuring a geological fracture, it's necessary to collect data on its subsequent propagation to facilitate further exploration. Existing fracture measurement devices generally employ external monitoring, placing the measuring device above the fracture and using two probes to measure and monitor it. When subjected to external forces, the entire device shifts, and the measuring probes also become misaligned, resulting in extremely high errors in subsequent fracture propagation data measurements. The accuracy of fracture propagation data is easily affected by external factors. Furthermore, misalignment or loss of the measuring probes can lead to the complete and irrecoverable loss of data for that period, resulting in the loss of crucial geological research information. Additionally, the limited monitoring time prevents observers from timely collecting information on the timing and extent of fracture propagation. Utility Model Content
[0004] To address the problems of current crack measurement devices being susceptible to external forces, leading to errors in monitoring results, and even data loss during the monitoring phase due to misalignment or loss of the measuring needle, this invention provides a hydraulic and environmental geological crack measurement device.
[0005] This utility model is achieved using the following technical solution:
[0006] A hydrogeological crack measuring device includes a horizontally arranged protective tube with a transparent observation strip on top. One end of the protective tube is installed at the lower part of a first monitoring pile, and the other end is movably fitted at the lower part of a second monitoring pile. A vertical mounting hole is opened at the upper part of the first monitoring pile, and a through hole communicating with the protective tube is opened on the side wall of the middle part of the mounting hole. A movable column is provided in the mounting hole, and a positioning pit for the movable column is provided at the bottom of the mounting hole. A hidden handle is provided at the top of the movable column, and a pull rope for connecting an infrared reflector is fixed at the middle end of the movable column. The infrared reflector is slidably installed in the protective tube and cooperates with an infrared rangefinder installed on the second monitoring pile.
[0007] During implementation, the system includes a horizontally positioned protective tube with a transparent observation strip at the top for monitoring the position of the infrared reflector. One end of the protective tube is installed at the bottom of the first monitoring pile, and the other end is movably fitted onto the bottom of the second monitoring pile. A warning sign is fixed to the top of the second monitoring pile, bearing warning messages such as "Geological fissure, do not approach" and "Fissure measurement area, do not approach." A connecting end is fixed to the bottom of the second monitoring pile, and the protective tube is freely fitted onto the connecting end.
[0008] The first monitoring post has an outer square and inner round structure. A vertical mounting hole is located at the top of the post, and a through hole communicating with the protective pipe body is located on the side wall of the middle of the mounting hole. A movable column is installed inside the mounting hole, and a positioning pit for the movable column is located at the bottom of the mounting hole. A hidden handle is located on the top of the movable column's locking head. The locking head is flush with the surface of the movable column, and a hidden handle is located on the upper surface of the locking head. Furthermore, a column cap is installed on the top surface of the movable column to prevent external forces from moving it. A pull rope connecting to the infrared reflector is fixed at the middle of the movable column. Specifically, the movable column position... A retaining ring is fitted at the through hole, and the infrared reflector is directly facing the infrared rangefinder. The back of the infrared reflector is connected to one end of the pull rope, and the other end of the pull rope slides into the mounting hole of the first monitoring pile and is fixedly connected to the retaining ring. The infrared reflector is slidably installed in the protective tube, that is, a guide rail is provided on the inner wall of the protective tube. The guide rail is matched with the positioning notch on the outer periphery of the infrared reflector to prevent the infrared reflector from moving and becoming misaligned. The infrared reflector is matched with the infrared rangefinder installed on the second monitoring pile, and an infrared rangefinder with a transmission module is installed on the free end face of the connection end.
[0009] When measuring cracks, slide the infrared reflector with the pull rope installed into the protective tube, allowing the positioning notch on the infrared reflector to slide freely on the guide rail. Insert the pull rope through the through hole into the mounting hole. Place the retaining ring on the movable column, ensuring the retaining ring's installation height aligns with the through hole. Fix the free end of the pull rope to the retaining ring. Insert the movable column into the mounting hole, with the bottom of the movable column embedded in the positioning pit. Tilt the first monitoring stake and the protective tube, allowing the positioning notch on the infrared reflector to slide freely on the guide rail, straightening the pull rope. Note that this should be done to avoid the pull rope from winding around the movable column and shortening it; the pull rope should be aligned with the through hole at the retaining ring's installation position. Place the free end of the protective tube onto the connecting end. Place the first and second monitoring stakes at both ends of the crack, keeping their positions unchanged. Turn on the infrared rangefinder, pull the hidden handle to lift the movable column, moving the infrared reflector. Record the positions at both ends of the crack to calculate the initial position of the crack.
[0010] After measurement, insert the movable column into the mounting hole, allowing the positioning notch on the infrared reflector to slide freely on the guide rail, straightening the pull rope. Dig trenches on both sides of the crack, and dig a pit on the crack surface with a depth less than the trenches. Place the second monitoring stake in the trench, while simultaneously fitting the free end of the protective pipe onto the connecting end. Place the protective pipe and the first monitoring stake in the trench and bury them together. At this point, the pull rope is straightened, and the distance measured by the infrared rangefinder, i.e., the position of the infrared reflector, is recorded. Backfill the trench with soil, bury the first monitoring stake, the second monitoring stake, and the protective pipe. Observe that the data transmitted by the infrared rangefinder remains unchanged, and the equipment installation is complete.
[0011] If the crack expands further, the protective pipe will move relative to the connecting end, the distance between the infrared reflector and the second monitoring pile will change, the distance measured by the infrared rangefinder will change, and the data on the crack expansion will be obtained.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] The utility model provides a hydrogeological crack measuring device that is buried at the crack. Because it is buried, except for the warning structure, the rest of the structure is not exposed, reducing the area occupied by the device at the crack. Secondly, it will not be affected by external impacts, wind, or other factors, and the accuracy of the survey and measurement is not easily affected by external factors, thus improving the accuracy of subsequent crack expansion survey and monitoring data.
[0014] This device uses infrared ranging, which can transmit measurement data back in real time to obtain accurate results. Even if the device is damaged due to external factors, it can retain valuable data before the damage, avoiding the situation of complete data loss and irreparable loss.
[0015] In addition, the overall structure is simple, without complex mechanical structures, and the cost is low, making it easy to promote. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is an installation diagram of this utility model.
[0018] In the diagram: 1-First monitoring post, 2-Second monitoring post, 3-Protective pipe body, 4-Mounting hole, 5-Through hole, 6-Moving column, 7-Positioning pit, 8-Clamping head, 9-Hidden handle, 10-Infrared rangefinder, 11-Connecting end, 12-Infrared reflector, 13-Pull rope, 14-Clamping ring, 15-Positioning slip, 16-Warning sign. Detailed Implementation
[0019] The specific embodiments of this utility model will now be described with reference to the accompanying drawings.
[0020] A device for measuring hydrogeological fractures, such as Figures 1-2 As shown: A horizontally positioned protective tube 3 is included, with a transparent observation strip above it for observing the position of the infrared reflector 12. One end of the protective tube 3 is installed at the lower part of the first monitoring pile 1, and the other end of the protective tube 3 is movably fitted onto the lower part of the second monitoring pile 2. A warning sign 16 is fixed to the top of the second monitoring pile 2, with warning words such as "Geological fissure, do not approach" and "Fissure measurement area, do not approach". A connecting end 11 is fixed to the lower part of the second monitoring pile 2, and the protective tube 3 is freely fitted onto the connecting end 11.
[0021] The first monitoring pile 1 has an outer square and inner round structure. A vertical mounting hole 4 is opened at the top of the first monitoring pile 1. A through hole 5 communicating with the protective pipe body 3 is opened on the middle side wall of the mounting hole 4. A movable column 6 is installed inside the mounting hole 4. A positioning pit 7 for the movable column 6 is provided at the bottom of the mounting hole 4. A hidden handle 9 is provided on the top of the movable column 6, with the top end of the movable column 6 having the top end flush with the surface of the movable column 6. A hidden handle 9 is opened on the upper surface of the top end ... Five retaining rings 14 are fitted at each point. The infrared reflector 12 faces the infrared rangefinder 10. The back of the infrared reflector 12 is connected to one end of the pull rope 13. The other end of the pull rope 13 slides into the mounting hole of the first monitoring pile 1 and is fixedly connected to the retaining ring 14. The infrared reflector 12 is slidably installed in the protective tube body 3. That is, the inner wall of the protective tube body 3 is provided with a guide rail. The guide rail cooperates with the positioning notch 15 provided on the outer periphery of the infrared reflector 12 to prevent the infrared reflector 12 from moving and becoming misaligned. The infrared reflector 12 cooperates with the infrared rangefinder 10 installed on the second monitoring pile 2. The infrared rangefinder 10 with a transmission module is installed on the free end face of the connecting end 11.
[0022] When measuring cracks during use, the infrared reflector 12, equipped with a pull rope 13, is slidably installed in the protective tube 3, allowing the positioning notch 15 on the infrared reflector 12 to slide freely on the guide rail. The pull rope 13 is then inserted into the mounting hole 4 through the through hole 5. The retaining ring 14 is looped around the column body of the movable column 6, with the installation height of the retaining ring 14 aligned with the through hole 5. The free end of the pull rope 13 is fixed to the retaining ring 14. The movable column 6 is then installed into the mounting hole 4, at which point the bottom of the movable column 6 is embedded in the positioning pit 7. The first monitoring pile 1 and the protective tube 3 are tilted so that the infrared reflector... The positioning slip 15 on 12 slides freely on the guide rail to straighten the pull rope 13. It should be noted that at this time, the pull rope 13 should be prevented from getting tangled on the movable column 6, which would shorten the pull rope. That is, the installation position of the pull rope on the retaining ring should be directly opposite the through hole. The free end of the protective tube 3 is put on the connecting end 11. The first monitoring pile 1 and the second monitoring pile 2 are placed at both ends of the gap and kept in the same position. The infrared rangefinder 10 is turned on, and the hidden handle 9 is pulled to lift the movable column 6, which drives the infrared reflector 12 to move. The positions of the two ends of the crack are recorded respectively, and the initial position of the crack is calculated.
[0023] After the measurement is completed, the movable column 6 is installed into the mounting hole 4, and the positioning notch 15 on the infrared reflector 12 slides freely on the guide rail to straighten the pull rope 13. The burial trench is dug on both sides of the crack, and the burial pit with a depth less than the burial trench is dug on the surface of the crack. The second monitoring pile 2 is placed in the burial trench. While the free end of the protective pipe body 3 is put on the connecting end 11, the protective pipe body 3 and the first monitoring pile 1 are placed in the burial pit and burial trench. The device is assembled together. At this time, the pull rope 13 is straightened. The distance measured by the infrared rangefinder 10 at this time is recorded, that is, the position of the infrared reflector 12. The soil is backfilled into the burial pit and burial trench, and the first monitoring pile 1, the second monitoring pile 2, and the protective pipe body 3 are buried inside. The data transmitted by the infrared rangefinder 10 remains unchanged. The equipment installation is completed.
[0024] If the crack expands further, the protective pipe 3 moves relative to the connecting end 11, the distance between the infrared reflector 12 and the second monitoring pile 2 changes, the distance measured by the infrared rangefinder 10 changes, and the data on the crack expansion is obtained.
[0025] The scope of protection claimed by this utility model is not limited to the specific embodiments described above. Moreover, for those skilled in the art, this utility model can have various modifications and alterations. Any modifications, improvements, and equivalent substitutions made within the concept and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A device for measuring hydrogeological fractures, characterized in that: It includes a horizontally set protective tube (3), with a transparent observation strip above the protective tube (3). One end of the protective tube (3) is installed at the lower part of the first monitoring pile (1), and the other end of the protective tube (3) is movably fitted at the lower part of the second monitoring pile (2). The first monitoring pile (1) has a vertical mounting hole (4) at its upper part. The middle side wall of the mounting hole (4) has a through hole (5) that communicates with the protective pipe body (3). The mounting hole (4) is provided with a movable column (6). The bottom of the mounting hole (4) is provided with a positioning pit (7) that cooperates with the movable column (6). The top of the movable column (6) has a hidden handle (9). The middle end of the movable column (6) is fixed with a pull rope (13) that connects to the infrared reflector (12). The infrared reflector (12) is slidably installed in the protective pipe body (3). The infrared reflector (12) cooperates with the infrared rangefinder (10) installed on the second monitoring pile (2).
2. The hydrogeological fracture measuring device according to claim 1, characterized in that: The lower part of the second monitoring pile (2) is fixed with a connecting end (11), the protective tube (3) is freely fitted on the connecting end (11), and an infrared rangefinder (10) with a transmission module is installed on the free end face of the connecting end (11).
3. The hydraulic ring geological fracture measuring device according to claim 1, characterized in that: The inner wall of the protective tube (3) is provided with a guide rail, which is matched with the positioning notch (15) provided on the outer periphery of the infrared reflector (12).
4. The hydrogeological fracture measuring device according to claim 1, characterized in that: The movable column (6) is fitted with a retaining ring (14) at the through hole (5).
5. The hydrogeological fracture measuring device according to claim 4, characterized in that: The infrared reflector (12) faces the infrared rangefinder (10). The back of the infrared reflector (12) is connected to one end of the pull rope (13). The other end of the pull rope (13) slides into the mounting hole of the first monitoring pile (1) and is fixedly connected to the retaining ring (14).
6. The hydrogeological fracture measuring device according to claim 1, characterized in that: A warning sign (16) is fixed to the top of the second monitoring pile (2).
7. The hydrogeological fracture measuring device according to claim 1, characterized in that: The upper end of the movable column (6) is equipped with a clamp (8), and the upper surface of the clamp (8) has a hidden handle (9).