Dam multi-mode vertical line displacement monitoring support
By using a multimodal vertical displacement monitoring bracket, combined with mechanical adjustment, optical aiming, and photoelectric sensing, and integrating existing monitoring instruments, the problems of accuracy and real-time performance in dam vertical displacement monitoring have been solved, achieving efficient and accurate monitoring results.
Patent Information
- Application Number
- CN202520479756.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing methods for monitoring vertical displacement of dams suffer from problems such as high manpower consumption, poor real-time performance, large measurement errors, and poor stability, making it difficult to achieve accurate, continuous, and real-time monitoring.
A multi-modal vertical displacement monitoring bracket is adopted, which combines mechanical adjustment, optical aiming and photoelectric sensing, integrates existing monitoring instruments, performs automated monitoring through a CCD vertical coordinate instrument, and is equipped with manual reading verification to achieve multi-level adjustment and calibration.
It improves the accuracy and efficiency of dam vertical displacement monitoring, reduces manpower and time costs, ensures the accuracy and continuity of monitoring data, and is suitable for long-term monitoring in complex environments.
Smart Images
Figure CN223909151U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dam monitoring technical field, concretely is a dam multimode vertical line displacement monitoring support. BACKGROUND
[0002] As important water conservancy infrastructure, the safe and stable operation of dam is related to the safety of life and property of downstream people, social and economic development and ecological environment stability, and vertical line displacement is one of the key indicators of dam safety monitoring, which can intuitively reflect the vertical deformation of dam under various loads. In the long-term operation process, the dam is affected by many complex factors such as water pressure, temperature change, foundation settlement, etc., and may cause uneven settlement or deformation, thereby threatening the safety of dam structure. Accurate monitoring of vertical line displacement can help to find potential safety hazards of dam in time and provide scientific basis for maintenance, management and decision-making of dam.
[0003] With the continuous expansion of water conservancy construction scale, the height and storage capacity of dam continue to increase, which puts forward higher requirements for the accuracy and reliability of dam safety monitoring. For example, in high dam and large reservoir projects, small changes in vertical line displacement may cause serious consequences. In addition, many early constructed dams are gradually entering the aging period, and their structural performance is gradually declining. Therefore, it is particularly important to strengthen the accurate monitoring of vertical line displacement to ensure the safe operation of dam.
[0004] At present, the traditional mechanical monitoring method, optical monitoring method and sensor monitoring method are generally used for dam vertical line displacement monitoring. The traditional mechanical monitoring method such as MZ-2 type vertical line sighting instrument measurement needs manual point-by-point measurement. For large dam monitoring with wide range, a large amount of manpower and time is consumed, and the real-time performance is poor, which cannot realize dynamic and continuous monitoring of dam vertical line displacement, and it is difficult to capture sudden changes in time. The optical monitoring method such as leveling instrument measurement is difficult to implement in the dam area with complex terrain and poor visibility, and is greatly affected by environmental factors such as temperature change leading to thermal expansion and contraction of instrument parts, atmospheric refraction, etc., which may introduce measurement error. At the same time, the measurement period is long, which is difficult to meet the actual monitoring demand of dam, and the data processing is relatively complicated. The sensor monitoring method such as capacitive vertical line coordinate instrument monitoring is obviously affected by temperature, humidity and other environmental factors, and has poor long-term stability. After long-term use, the sensor may have zero drift phenomenon, which changes the measurement reference, and affects the accuracy and stability of vertical line monitoring data. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a dam multimode vertical line displacement monitoring support, which can integrate the existing dam vertical line displacement monitoring instrument layout by using the utility model device, avoid the shortcomings of various vertical line monitoring instruments, complement each other's advantages and disadvantages, accurately, continuously and real-timely monitor the vertical line displacement change of dam, reduce the labor cost investment, improve the vertical line monitoring accuracy and efficiency, and save time cost.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A dam multi-modal plumb line displacement monitoring support, including the third instrument base, the third instrument base is equipped with fixed hole on, for with foundation connection fixed, the third instrument base is connected the second instrument base through adjusting screw, the second instrument base is equipped with horizontal bubble, the second instrument base installs the CCD plumb line coordinate instrument, the second instrument base is connected the first instrument base through adjusting screw, the first instrument base is connected plumb line sighting instrument through adjusting screw, wherein, the third instrument base, the second instrument base, the first instrument base and plumb line sighting instrument are equipped with the mouth for the plumb line through in the vertical line direction.
[0008] Preferably, the plumb line sighting instrument top is equipped with a compass.
[0009] Preferably, the plumb line sighting instrument top is further equipped with a level.
[0010] Preferably, the third instrument base is further fixed with a level mounting base, the level mounting base is used to install a level on the third instrument base initially and adjust the levelness of the third instrument base.
[0011] Preferably, the first instrument base is connected with a reinforcing plate in the middle.
[0012] Preferably, the adjusting screw is made of stainless steel.
[0013] Compared with the prior art, the technical scheme has the following technical effects:
[0014] 1. The utility model can integrate the existing dam plumb line displacement monitoring instrument layout, avoid the shortcomings of various plumb line monitoring instruments, complement each other's advantages and disadvantages, accurately, continuously and real-timely monitor the dam plumb line displacement change, reduce the labor cost investment, improve the plumb line monitoring precision and efficiency, and save time cost.
[0015] 2. The utility model can install a manual plumb line sighting instrument or a level according to the actual observation environment on site, check the automatic calculation formula of the CCD plumb line coordinate instrument by using the manual plumb line sighting instrument reading or the level reading and the CCD plumb line coordinate instrument reading at the same time, continuously and automatically monitor by using the CCD plumb line coordinate instrument, ensure the continuity of the plumb line monitoring data, and improve the monitoring efficiency.
[0016] 3. Meanwhile, the multi-modal plumb line displacement monitoring instrument integrated support can be disassembled, transported, manually and automatically monitored, and replaced according to the actual working condition on site, the multi-modal plumb line displacement monitoring instrument integrated support device can be repeatedly used, and the material cost investment is reduced.
[0017] 4. By regularly using manual monitoring equipment to take manual readings, the automated monitoring data of the CCD plumb line coordinate instrument can be verified, ensuring the accuracy of the CCD plumb line coordinate instrument monitoring data and the accuracy of the measured values of the automated monitoring equipment. This improves the frequency and accuracy of dam vertical displacement monitoring while reducing labor and time costs. Attached Figure Description
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] In the diagram: 1. Plumb line; 2. Plumb line aiming instrument; 3. Level instrument; 4. Mouth; 5. Instrument base No. I; 6. Fixing hole; 7. CCD plumb line coordinate instrument; 8. Adjusting screw; 9. Level instrument mounting base; 10. Compass; 11. Reinforcing plate; 12. Instrument base No. II; 13. Instrument base No. III. Detailed Implementation
[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0022] As a preferred embodiment of this utility model, see attached... Figure 1 As shown: This embodiment provides a multimodal vertical displacement monitoring support for a dam, including a No. III instrument base 13, which has a fixing hole 6 for connection and fixation to the foundation; the No. III instrument base 13 is connected to a No. II instrument base 12 via an adjusting screw 8, the No. II instrument base 12 has a horizontal bubble 14, a CCD vertical coordinate instrument 7 is installed on the No. II instrument base 12, and the No. I instrument base 5 is connected to the No. I instrument base 5 via an adjusting screw 8; wherein, the No. III instrument base 13, the No. II instrument base 12, the No. I instrument base 5 and the vertical aiming instrument 2 are all provided with an opening 4 in the vertical direction for the vertical line 1 to pass through.
[0023] The CCD vertical coordinate instrument 7 has the characteristics of a non-contact automatic displacement measuring device, and can measure the displacement of the vertical line in the X and Y directions in the plane. The measurement principles of the two directions are the same, and the measurement circuits are independent of and do not interfere with each other.
[0024] In the above embodiment, in order to facilitate the judgment of the direction and the judgment of the vertical line deviation direction in the monitoring process, a compass 10 is arranged on the top of the vertical line sighting instrument 2.
[0025] In some preferred embodiments, in order to facilitate the adjustment of the horizontal degree of the vertical line sighting instrument 2, and at the same time, to adjust the horizontal state of the vertical line sighting instrument 2 located at the highest position for long-term observation, a level 3 is further arranged on the top of the vertical line sighting instrument 2.
[0026] In some preferred embodiments, the No. III instrument base 13 is further fixedly provided with a level mounting base 9, which is used to mount a level on the No. III instrument base 13 at the initial fixing and to adjust the horizontal degree of the No. III instrument base 13.
[0027] In some preferred embodiments, considering that the support has a certain height, a reinforcing plate 11 is transversely connected in the middle of the No. I instrument base 5 in the embodiment, so as to enhance the structural strength of the No. I instrument base 5. Of course, other structures such as reinforcing rods can also be used, and it should be understood that the semantic range caused by the limitation of language description should not be a limitation on the protection scope of the utility model.
[0028] In some preferred embodiments, the adjusting screw 8 is made of stainless steel material. Stainless steel material has good corrosion resistance, and is particularly suitable for use in complex environments to prolong the service life of the equipment and reduce maintenance costs. In the embodiment, the adjusting screw 8 is made of stainless steel material, which can enhance the corrosion resistance and prolong the service life of the adjusting screw 8, while ensuring the quickness of horizontal adjustment during use.
[0029] The dam multi-modal vertical line displacement monitoring support provided by the patent realizes high-precision monitoring of the vertical line displacement of the dam through the synergistic effect of the multi-stage adjusting structure and the functional components. The use process is as follows:
[0030] 1. Foundation installation and horizontal calibration
[0031] Fix the No. III instrument base:
[0032] The No. III instrument base 13 is bolted to the foundation (such as a dam monitoring point embedded part) through the fixing hole 6. During installation, the level on the level mounting base 9 is used to initially adjust the levelness of the base, so as to ensure that the horizontal bubble is centered, and the error is controlled within ±0.1°.
[0033] 2. Multi-stage adjustment assembly
[0034] Connecting instrument base:
[0035] The stainless steel adjustment screw 8 is connected to the No. Ⅲ instrument base 13, the No. Ⅱ instrument base 12, the No. Ⅰ instrument base 5 and the plumb line sighting instrument 2 in sequence. The mouth 4 at the center of each base needs to be strictly aligned to ensure that the plumb line 1 passes without deflection.
[0036] Reinforcing structure:
[0037] If the height of the support is high, a reinforcing plate 11 is transversely welded in the middle of the No. Ⅰ instrument base 5 to enhance the overall bending stiffness and prevent structural deformation caused by wind load or vibration.
[0038] Direction calibration:
[0039] The compass 10 at the top of the plumb line sighting instrument 2 is used to determine the monitoring direction (such as the north reference) and assist in judging the plumb line deviation direction; at the same time, the level 3 at the top thereof monitors the horizontal state of the sighting instrument in real time, and if inclination occurs, the adjustment screw 8 is finely adjusted to the center of the horizontal bubble.
[0040] 3. CCD plumb line coordinate instrument debugging
[0041] Installation and calibration:
[0042] The CCD plumb line coordinate instrument 7 is fixed to the No. Ⅱ instrument base 12, and after power-on, the optical sighting function of the plumb line sighting instrument 2 is used to make the plumb line 1 project accurately to the center area of the CCD sensor.
[0043] The utility model discloses a combination of mechanical adjustment (screw), optical sighting (plumb line instrument) and photoelectric sensing (CCD), which can cover static calibration and dynamic monitoring requirements; the adjustment screw 8 can adopt a precision thread design, and when the pitch is less than or equal to 1mm, it can support micron-level displacement adjustment, meeting the rapid correction under emergency working conditions.
[0044] The support is especially suitable for long-term deformation monitoring of large-scale water conservancy projects (such as gravity dams and arch dams), and through multi-stage redundant design (horizontal calibration + direction calibration + structural reinforcement) and high-precision sensing technology, the reliability and engineering safety of monitoring data are significantly improved.
[0045] Finally, it should be pointed out that the above examples are only used to illustrate the technical solutions of the utility model and are not limiting. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, and they should be covered in the scope of the claims of the utility model.
Claims
1. A dam multi-modal plumb line displacement monitoring support, characterized in that: The application relates to a vertical line aiming instrument, which comprises a No. 3 instrument base (13) provided with fixing holes (6) for being fixedly connected with a foundation; the No. 3 instrument base (13) is connected with a No. 2 instrument base (12) through adjusting screw rods (8); the No. 2 instrument base (12) is provided with a horizontal bubble (14); a CCD vertical line coordinate instrument (7) is installed on the No. 2 instrument base (12); the No. 2 instrument base (12) is connected with a No. 1 instrument base (5) through adjusting screw rods (8); the No. 1 instrument base (5) is connected with a vertical line aiming instrument (2) through adjusting screw rods (8); wherein the No. 3 instrument base (13), the No. 2 instrument base (12), the No. 1 instrument base (5) and the vertical line aiming instrument (2) are all provided with ports (4) for vertical lines in the vertical line direction.
2. The dam multi-modal plumb line displacement monitoring support of claim 1, wherein: The vertical line aiming instrument (2) is provided with a compass (10) on the top.
3. The dam multi-modal plumb line displacement monitoring support of claim 1, wherein: The vertical line aiming instrument (2) is further provided with a level (3) on the top.
4. The dam multi-modal plumb line displacement monitoring support of claim 1, wherein: The No. 3 instrument base (13) is further provided with a level mounting base (9) for mounting a level when the No. 3 instrument base (13) is fixed for the first time, and the level mounting base (9) is used for adjusting the levelness of the No. 3 instrument base (13).
5. The dam multi-modal plumb line displacement monitoring support of claim 1, wherein: The No. 1 instrument base (5) is transversely connected with a reinforcing plate (11) in the middle.
6. The dam multi-modal plumb line displacement monitoring support of claim 1, wherein: The adjusting screw rods (8) are made of stainless steel.