Deformation monitoring device for concrete face rockfill dam

Abstract

The embodiment of the invention provides a concrete face rock-fill dam deformation monitoring device, and relates to the field of rock-fill dam monitoring technology detection. The concrete face rockfill dam deformation monitoring device comprises a dam body which is built by filling stones and matching with an anti-seepage body, and an internal deformation monitoring assembly used for monitoring internal deformation of the dam body is arranged in the dam body in a penetrating mode; meanwhile, a total station and a prism are erected on the surface of the dam body, the total station and the prism are matched to be used for monitoring the surface deformation amount of the dam body, and a protection assembly used for protecting the total station is arranged outside the total station. According to the scheme, a flexible installation scheme which is stable in supporting, convenient and fast in height and position adjustment and integrated with an effective protection function can be provided, so that the full-life-cycle, multi-measuring-point and dynamically-changing surface deformation monitoring requirements of the concrete faced rockfill dam are met.

Description

Technical Field

[0001] The present application relates to the technical field of rockfill dam monitoring, and in particular to a deformation monitoring device for a concrete panel rockfill dam. Background Art

[0002] In the safety monitoring of concrete face rockfill dams, surface deformation monitoring is crucial and usually relies on high-precision measuring instruments such as total stations in conjunction with prisms arranged on the dam surface.

[0003] However, traditional monitoring methods face a significant problem: in order to obtain a stable and accurate measurement benchmark and protect expensive total stations from harsh environments (sunlight, rain, and theft), they usually need to be fixed on a permanent concrete base.

[0004] This fixed installation method significantly limits the flexibility and adaptability of the total station. To adjust the total station's installation position or observation height based on monitoring requirements, the original structure must be destroyed and a new concrete base must be poured. This not only complicates construction, but also prolongs the installation process and increases costs. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a deformation monitoring device for concrete face rockfill dams that provides stable support, convenient height and position adjustment, and a flexible installation solution with integrated effective protection functions to meet the needs of surface deformation monitoring for face rockfill dams throughout their life cycle, at multiple measurement points, and with dynamic changes.

[0006] According to an embodiment of the present application, a deformation monitoring device for a concrete face rockfill dam comprises: a dam body constructed by filling with stone and equipped with an impermeable body, wherein an internal deformation monitoring component for monitoring internal deformation of the dam body is provided through the interior of the dam body;

[0007] At the same time, a total station and a prism are set up on the surface of the dam body, and the total station and the prism are used to monitor the surface deformation of the dam body. A protective component for protecting the total station is set outside the total station;

[0008] Among them, the protective component includes a light shield, and a retractable pneumatic telescopic cover is integrally connected to the bottom of the light shield. After the pneumatic telescopic cover is unfolded, it can cover the total station for protection. Among them, the pneumatic telescopic cover is driven by an air pump arranged at the end of the inner cavity of the light shield.

[0009] According to some embodiments of the present application, the internal deformation monitoring component includes a walking channel embedded in the dam body, and the other end of the walking channel extends to the outside of the dam body and is connected to a workstation, wherein the inner cavity of the workstation is provided with a trajectory monitoring traveling trolley.

[0010] According to some embodiments of the present application, a photovoltaic panel group and a control box are respectively provided on one side of the total station; and a fixing sleeve is integrally connected to the bottom of the pneumatic telescopic cover.

[0011] According to some embodiments of the present application, the output end of the air pump is connected to air pipe 1, and the surface of air pipe 1 is connected to air pipe 2;

[0012] A horizontal mounting base is provided at the bottom of the pneumatic telescopic cover, an assembly platform is installed above the horizontal mounting base, and a turntable is installed through the middle of the horizontal mounting base.

[0013] According to some embodiments of the present application, a plurality of positioning slots are evenly penetrated through the outer ring of the surface of the fixing sleeve, the outer ring of the end of the assembly table is fixedly connected to a socket, and a plurality of socket holes for use with the positioning slots are annularly opened on the surface of the socket.

[0014] According to some embodiments of the present application, a plurality of rotating rods 1 are installed through the surface of the horizontal mounting base, wherein a rotating rod 2 is installed through one end of the surface of the horizontal mounting base;

[0015] A toothed belt is provided on one side of the horizontal mounting base and the assembly platform, and gears used in conjunction with the toothed belt are sleeved on the surfaces of the first rotating rod and the second rotating rod.

[0016] According to some embodiments of the present application, a plug-in board is provided on the surface of the rotating rod 1, and the rotating rod 2 is driven by a motor provided at the bottom thereof.

[0017] According to some embodiments of the present application, a positioning assembly is provided at the bottom of the protective assembly, and the positioning assembly is used to auxiliary support the total station and the protective assembly. The positioning assembly includes a fixed cylinder and a support rod movably arranged above the fixed cylinder.

[0018] According to some embodiments of the present application, the end of the fixed cylinder is movably connected to a threaded sleeve via a bearing, and the fixed cylinder is hollow, and the inner cavity of the threaded sleeve is threadedly connected to a screw adjustment member.

[0019] According to some embodiments of the present application, a storage groove is provided on the surface of the fixed cylinder, and an abutment groove is provided on the surface of the fixed cylinder and located in the inner cavity of the storage groove;

[0020] The bottom of the storage tank cavity is movably connected to a stabilizing plug plate through a rotating shaft, and a positioning plug is provided through one end of the surface of the positioning plug;

[0021] The bottom of the fixing cylinder is connected with a fixing plug, and the fixing plug is used in conjunction with the positioning plug.

[0022] The beneficial effects of this application are as follows: This solution uses a trajectory monitoring vehicle that is retracted and extended by a workstation to move within a walking channel embedded in the dam body, collecting real-time deformation data of the dam body. Surface deformation monitoring relies on a total station mounted on the dam body surface in conjunction with multiple prisms laid on the blanket layer. Through high-precision three-dimensional coordinate measurement, the displacement, settlement, and panel deformation of the concrete surface layer and the dam body surface are monitored in real time. The total station is protected by a protective component: the pneumatic telescopic cover is driven downward by an air pump on a daily basis, allowing the fixed sleeve to be inserted into the socket. At this time, the motor drives the second rotating rod, which, through the meshing gear and the toothed belt, drives the first rotating rod to drive the plug-in board into the positioning slot and the plug-in hole to lock the cover body, achieving sun protection, waterproofing, and anti-theft. The pneumatic telescopic cover retracts to avoid during measurement. The fixing plug at the bottom of the fixed cylinder and the extended stabilizing plate are inserted into the ground through the positioning plug. Rotating the threaded sleeve drives the screw adjustment member up and down, driving the support rod and support base to adjust the height of the horizontal mounting base and assembly table, ensuring the precise positioning of the total station. The turntable is driven by a motor at the bottom, assisting the total station in rotating and measuring angles. All monitoring data is integrated and processed by the control box to comprehensively assess the safety of the dam.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a deformation monitoring device for a concrete panel rockfill dam according to an embodiment of the present application;

[0026] Figure 2 This is a second schematic diagram of the overall three-dimensional structure of the concrete panel rockfill dam deformation monitoring device according to an embodiment of the present application;

[0027] Figure 3 is a schematic cross-sectional view of a dam structure according to an embodiment of the present application;

[0028] Figure 4 is a schematic structural diagram of an internal deformation monitoring assembly according to an embodiment of the present application;

[0029] Figure 5 Schematic diagram of the structure of the trajectory monitoring vehicle according to an embodiment of the present application;

[0030] Figure 6This is a schematic diagram of the structural assembly of the protection component, the total station, and the positioning component according to an embodiment of the present application;

[0031] Figure 7 This is a second schematic diagram of the structural assembly of the protection component, the total station, and the positioning component according to an embodiment of the present application;

[0032] Figure 8 This is a schematic diagram of the exploded structure of the protection component, total station, and positioning component according to an embodiment of the present application;

[0033] Figure 9 is a schematic diagram of the exploded structure of the positioning component according to an embodiment of the present application;

[0034] Figure 10 This is a schematic diagram of a partial structure of a protection component according to an embodiment of the present application;

[0035] Figure 11 is a schematic diagram of a cross-sectional exploded view of a pneumatic telescopic cover structure according to an embodiment of the present application;

[0036] Figure 12 This is the second schematic diagram of the partial structure of the protection component according to the embodiment of the present application.

[0037] icon:

[0038] 100, dam body; 110, secondary rockfill area; 120, primary rockfill area; 130, transition area; 140, cushion area; 150, concrete surface layer; 160, covering layer; 170, wave-breaking wall;

[0039] 200, internal deformation monitoring component; 210, walking channel; 220, workstation; 230, trajectory monitoring traveling vehicle;

[0040] 300, photovoltaic panel group; 310, control box;

[0041] 400, protective assembly; 410, light shield; 420, pneumatic telescopic cover; 421, fixing sleeve; 422, positioning slot; 430, air pump; 431, air pipe 1; 432, air pipe 2; 440, horizontal mounting base; 441, turntable; 442, assembly table; 450, socket; 451, socket hole; 460, toothed belt; 461, gear; 470, rotating rod 1; 471, rotating rod 2; 480, plug board;

[0042] 500, total station; 510, prism;

[0043] 600, positioning assembly; 610, fixing cylinder; 611, storage groove; 612, abutment groove; 620, threaded sleeve; 621, screw adjustment member; 630, support rod; 631, support seat; 640, stabilizing plug plate; 641, positioning plug; 650, fixing plug. DETAILED DESCRIPTION

[0044] The following describes a deformation monitoring device for a concrete panel rockfill dam according to an embodiment of the present application with reference to the accompanying drawings.

[0045] like Figures 1-12 The deformation monitoring device for a concrete panel rockfill dam according to an embodiment of the present application includes: a dam body 100 constructed by filling with stone and equipped with an impermeable body: the dam body 100 is a rockfill dam with a rockfill body as a supporting structure and a concrete panel as an impermeable structure on its upstream surface, referred to as a panel rockfill dam or panel dam. It belongs to the type of earth-rock dam, and its structure is as follows: Figure 3 As shown, the dam body 100 includes a secondary rockfill area 110 , a primary rockfill area 120 , a transition area 130 , a cushion area 140 , a concrete surface layer 150 , a covering layer 160 and a wave-breaking wall 170 .

[0046] Face rockfill dams can be divided into rolled rockfill dams and dump rockfill dams according to the different filling construction methods of the dam body 100; and can be divided into face rockfill dams and face gravel dams according to the different materials of the dam body 100. The most common is face rockfill dam;

[0047] The concrete surface layer 150 is a thin plate anti-seepage structure located on the upstream surface of the dam body 100. The blanket layer 160 is composed of an anti-seepage blanket and a cover weight. The anti-seepage blanket is filled with clay or non-cohesive fine sand and is placed above the concrete surface layer 150 at the lower elevations and in the surrounding joints. Its function is to carry the anti-seepage soil material into the cracks with the water flow when the joints and the concrete surface layer 150 crack. The backfill material under the concrete surface layer 150 filters the cracks and blocks the cracks, restoring the anti-seepage performance. To prevent the anti-seepage soil material from becoming unstable, it is covered with any material as a cover weight. The setting of the anti-seepage reinforcement zone depends on the specific requirements.

[0048] The cushion area 140 is directly located below the concrete surface layer 150 and is required to provide a uniform, flat and reliable support surface for the concrete surface layer 150 and the waterstop at the bottom of the joint; when the concrete surface layer 150 or the waterstop at the joint cracks, it can serve as a second line of defense against seepage; during the construction period, when the concrete surface layer 150 is not poured, it can meet the requirements of the temporary dam body 100 for retaining water during flood season.

[0049] The cushioning material in cushion area 140 features high shear strength, low compressibility, semi-permeability, and excellent workability. Fresh, hard, and non-weathered stone is used. This can be processed stone, natural gravel, or a mixture of both. The cushioning material has strict grading requirements, with a maximum particle size of 75-100 mm and a content of particles smaller than 5 mm of 30% to 55%. The permeability of the cushioning material is required to be between 1×10-1×10 cm / s.

[0050] The width of the cushion layer 140 is determined based on the infiltration stability and construction process, with a horizontal width of 2 to 4 meters. When using a backhoe, loader, or other auxiliary equipment for manual laying, a width of 1 to 2 meters can be used. The cushion layer 140 is arranged with equal width and appropriately expanded in the foundation contact area.

[0051] The main rockfill area 120 is the main body of the face rockfill dam and the primary support for water and other loads. The dam material for this area is required to have low compressibility, high shear strength, good water transport properties, and durability. To fully utilize local materials, transition zones 130 and secondary rockfill areas 110 are laid at both ends of the main rockfill area 120 based on the deformation characteristics of different parts of the dam body 100. Each area meets hydraulic transition requirements and the principle of decreasing deformation modulus. The secondary rockfill area 110, located farther from the concrete surface layer 150, bears less water load and can be constructed with less-quality materials.

[0052] Specifically, a cushion is arranged around the concrete surface layer 150, and the concrete structure sitting on the foundation is also called a toe board.

[0053] The interior of the dam body 100 is penetrated by an internal deformation monitoring component 200 for monitoring its internal deformation; the internal deformation monitoring component 200 includes a walking channel 210 embedded in the dam body 100, and the other end of the walking channel 210 extends to the outside of the dam body 100 and is connected to a workstation 220. The inner cavities of the walking channel 210 and the workstation 220 are interconnected, and the workstation 220 is used to retract and extend the trajectory monitoring trolley 230, wherein the inner cavity of the workstation 220 is provided with a trajectory monitoring trolley 230.

[0054] In this solution, the core function of the internal deformation monitoring assembly 200 is to monitor deformation within the dam body 100, such as settlement, horizontal displacement, and deflection. Its operating principle relies on a pre-set rigid or semi-rigid reference datum—a travel path 210—that runs through key areas of the dam body 100, and a track-monitoring trolley 230 that precisely moves along this datum and measures its relative positional changes. The workstation 220 serves as the trolley's power source.

[0055] The walking channel 210 is a rigid pipe that runs horizontally through a specific area inside the dam body 100. It is made of high-strength, low-deformation steel pipe or high-strength alloy profiles, and has a smooth interior to ensure smooth operation of the track monitoring vehicle 230.

[0056] During the construction of dam body 100, walking path 210 is precisely pre-installed and embedded in the predetermined position. One end of the walking path extends to the outside of dam body 100 to connect to workstation 220. During installation, its initial straightness, elevation, and position must be strictly controlled to ensure that it is well embedded in the surrounding dam material and can accurately reflect the deformation of dam body 100 at its location.

[0057] The walking path 210 serves as a reference for internal deformation and as a running track for the trajectory monitoring vehicle 230. When the dam body 100 experiences internal deformation, such as uneven settlement or lateral displacement, the walking path 210, originally straight or installed according to the designed curvature, will bend, twist, or shift. Its deformation pattern represents the internal deformation of the dam body 100 along that path.

[0058] The workstation 220 provides a safe, dustproof, and waterproof storage environment for the trajectory monitoring traveling vehicle 230. It provides a mechanical interface and space to facilitate the placement or removal of the trajectory monitoring traveling vehicle 230 into or out of the walking channel 210.

[0059] Workstation 220 serves as a charging station for the trajectory monitoring vehicle 230. More importantly, it can be equipped with data receiving / transmission equipment to receive deformation monitoring data transmitted in real time by the trajectory monitoring vehicle 230 during measurements within the channel, or uploaded after return. This data is ultimately transmitted to the control center via control box 310. Workstation 220 also contains a desiccant or small dehumidifier to maintain a dry area at the channel entrance, preventing moisture from entering the channel and affecting the vehicle's operation or measurement accuracy.

[0060] The trajectory monitoring vehicle 230 is a precision measuring device that can operate automatically or remotely along the interior of the walking channel 210. Its core function is to continuously measure changes in its own posture relative to a fixed reference point in the walking channel 210 or its own posture in real time. Measurements are performed using an odometer in conjunction with an inertial measurement unit (IMU). The trajectory monitoring vehicle is equipped with a high-precision odometer wheel / encoder to record the distance traveled. It is also equipped with an IMU, including a gyroscope and accelerometer, to measure its own three-dimensional attitude angle changes, such as pitch, roll, yaw, and acceleration. By fusing odometer data and IMU data, combined with the initial geometric parameters of the channel, the three-dimensional coordinate offset of the trajectory monitoring vehicle 230 at each position in the walking channel 210 can be calculated, thereby depicting the actual deformation curve of the channel.

[0061] As a further optimization of this solution, the trajectory monitoring vehicle 230 can be equipped with a laser ranging sensor, which points to a preset reflective target on the inner wall of the walking channel 210 or directly measures the change in distance to the inner wall; by continuously recording these parameters, the deformation of the channel can be inverted, and then the deformation of the concrete panel rockfill dam can be monitored.

[0062] In this solution, according to a preset schedule, such as daily, the trajectory monitoring vehicle 230 departs from the workstation 220 and runs along the walking channel 210 to the end point, continuously measuring the entire process and recording the channel deformation data. After completion, it returns to the workstation 220.

[0063] When the total station 500 is used for external monitoring, when events such as surface displacement, abnormal seepage or earthquake occur, the trajectory monitoring traveling vehicle 230 can be remotely started to perform emergency measurements.

[0064] The raw data collected by the trajectory monitoring trolley 230, such as distance, attitude angle, and acceleration, are uploaded to the control center through the workstation 220 and processed through specific algorithms and mathematical models. The difference calculated by comparing the trajectory measured by the trajectory monitoring trolley 230 with the baseline of the initial installation state of the walking channel 210; such as coordinate offset, curvature change, and local inclination change, represents the deformation of the walking channel 210 at the corresponding position. Since the walking channel 210 is embedded with the surrounding dam materials, its deformation is considered to directly reflect the deformation inside the dam body 100 on the path. By analyzing data at different positions and different time points, information such as the settlement distribution, horizontal displacement distribution, and flexural deformation inside the dam body 100 along the monitoring path can be obtained.

[0065] At the same time, a total station 500 and a prism 510 are installed on the surface of the dam body 100. The total station 500 and the prism 510 are used together to monitor the surface deformation of the dam body 100; the total station 500 is fixedly installed in a specific position, and by emitting light beams and receiving reflected signals, it performs high-precision three-dimensional coordinate measurement of multiple prisms 510 that are pre-arranged precisely in key areas on the surface of the dam body 100.

[0066] By periodically or repeatedly measuring the coordinates of these prisms 510 and comparing them with initial or historical coordinates, the displacement, settlement, and panel deformation of each prism 510 can be accurately calculated, thereby enabling monitoring of surface deformation of concrete-faced rockfill dams. The photovoltaic panel array 300 and control box 310 provide power and data communication support for the total station 500.

[0067] In order to power and drive the total station 500, a photovoltaic panel group 300 and a control box 310 are respectively provided on one side of the total station 500;

[0068] The photovoltaic panel group 300 is a solar all-weather power supply system, the main purpose of which is to provide a continuous supply of electricity to the total station 500. At the same time, the total station 500 can be connected to the power grid and powered by the power grid and the control box 310.

[0069] The control box 310 is a communication control module, mainly used for power supply management and data communication.

[0070] Among them, the outside of the total station 500 is provided with a protective component 400 for protecting it; in the daily monitoring and use of the dam body 100, the protective component 400 is mainly used to protect the total station 500 from the sun, waterproof and theft, so as to avoid damage to the total station 500 during daily use and extend its service life; and the prism 510 is multiple and is installed on the covering layer 160 of the dam body 100. The prism 510 cooperates with the total station 500 to monitor the displacement, settlement and panel deformation of the concrete panel rockfill dam in real time through high-precision three-dimensional coordinate measurement, so as to ensure the safety and stability of the structure.

[0071] Among them, the protective component 400 includes a light shield 410, and a retractable pneumatic telescopic cover 420 is integrally connected to the bottom of the light shield 410. After the pneumatic telescopic cover 420 is unfolded, it can completely cover and protect the total station 500, thereby protecting it. The pneumatic telescopic cover 420 is driven by an air pump 430 arranged at the end of the inner cavity of the light shield 410.

[0072] When the total station 500 is in use, the pneumatic telescopic cover 420 contracts inward and does not block the total station 500. When the total station 500 needs to be protected, the pneumatic telescopic cover 420 is inflated by the air pump 430, so that it expands downward in a certain direction, and then can completely cover and protect the total station 500.

[0073] like Figure 11 As shown, the bottom of the pneumatic telescopic cover 420 is integrally connected with a fixing sleeve 421 , and the light shield 410 , the pneumatic telescopic cover 420 and the fixing sleeve 421 cooperate to form a cover body with an opening at the bottom, thereby protecting the total station 500 .

[0074] In order to drive the pneumatic telescopic hood 420, the output end of the air pump 430 is connected to the air pipe 1 431, and the surface of the air pipe 1 431 is connected to the air pipe 2 432, wherein the output end of the air pipe 2 432 is interconnected with the air inlet end of the pneumatic telescopic hood 420; and the air inlet end and the exhaust end of the pneumatic telescopic hood 420 are opened by the solenoid valve.

[0075] Therefore, when the air pump 430 is working, air is supplied to the pneumatic telescopic cover 420 through the air pipe 1 431 and the air pipe 2 432, which can drive the output end of the pneumatic telescopic cover 420 to extend downward, thereby covering the total station 500;

[0076] As another implementation of this solution, the air pump 430 can be replaced by a linear motor, the output end of which is connected to one end of the fixed sleeve 421, and can drive the pneumatic telescopic cover 420 to retract and extend;

[0077] A horizontal mounting base 440 is provided at the bottom of the pneumatic telescopic cover 420, and an assembly platform 442 is installed above the horizontal mounting base 440. The assembly platform 442 is used to support the total station 500, and the side opposite to the horizontal mounting base 440 and the turntable 441 is used to assemble the gear belt 460, the gear 461, the rotating rod 1 470, the rotating rod 2 471 and the plug-in board 480.

[0078] A turntable 441 is installed through the middle of the horizontal mounting base 440, and the connection between the turntable 441 and the horizontal mounting base 440 is movably connected through a bearing. The bottom of the horizontal mounting base 440 is fastened with a motor by bolts, and the output end of the motor is connected to the surface of the turntable 441, and the end of the turntable 441 passes through the end of the assembly platform 442. The total station 500 can be mounted on the end of the turntable 441 to assist in driving the total station 500 to rotate.

[0079] The outer ring of the surface of the fixing sleeve 421 is evenly penetrated with a plurality of positioning slots 422, and the positioning slots 422 are used in conjunction with the plug-in plate 480 to lock the pneumatic telescopic cover 420 after extension. The outer ring of the end of the assembly table 442 is fixedly connected with the plug-in seat 450, and the surface of the plug-in seat 450 is provided with a plurality of plug-in holes 451 used in conjunction with the positioning slots 422.

[0080] A plurality of rotating rods 470 are installed through the surface of the horizontal mounting base 440. A second rotating rod 471 is installed through one end of the surface of the horizontal mounting base 440. The surfaces of the first rotating rod 470 and the second rotating rod 471 are movably connected to the surface of the horizontal mounting base 440 via bearings.

[0081] A toothed belt 460 is provided on the side opposite to the horizontal mounting base 440 and the assembly platform 442, and the surfaces of the rotating rod 1 470 and the rotating rod 2 471 are both provided with gears 461 used in conjunction with the toothed belt 460, and multiple gears 461 are all meshed with the toothed belt 460.

[0082] Among them, the toothed belt 460 and the gear 461 are a synchronous belt and a synchronous pulley, and the two are used in conjunction with each other; as a further optimization of this solution, the toothed belt 460 and the gear 461 can also be a belt and a pulley used in conjunction with each other.

[0083] The surface of the first rotating rod 470 is provided with a plug-in board 480, and the second rotating rod 471 is driven by a motor provided at its bottom;

[0084] Specifically, the motor is installed at the bottom of the horizontal mounting base 440 , and the output end of the motor is fixedly connected to the bottom of the second rotating rod 471 .

[0085] During actual use, the pneumatic telescopic cover 420 is deployed downward to protect the total station 500. The pneumatic telescopic cover 420 moves downward to drive the fixed sleeve 421 to move downward until it is inserted into the socket 450. At this time, the motor drives the rotating rod 2 471 to work, and then drives the adjacent rotating rod 1 470 to rotate through the gear 461 and the toothed belt 460. When the rotating rod 2 471 rotates to a certain distance, it can be inserted into the adjacent socket hole 451 and the positioning slot 422, locking the pneumatic telescopic cover 420 to prevent it from retracting, thereby protecting the total station 500.

[0086] As a further implementation of this plan, Figure 11 As shown, a plurality of sliding rods are connected to the top of the inner cavity of the light shield 410, and a slider is slidably connected to the surface of the sliding rod, and the slider is connected to the surface of the fixed sleeve 421; and the bottom of the sliding rod is connected to the top of the assembly table 442. Under the action of the sliding rod and the slider, it can assist in driving the horizontal mounting base 440 and the turntable 441 to move straight downward to avoid deviation of their moving trajectory.

[0087] In the traditional monitoring process of rockfill dams, the total station 500 is fixedly installed on a stone column cast with concrete. When adjusting the position of the total station 500, it is necessary to rebuild the stone platform to position and install the total station 500. The assembly is relatively cumbersome. A positioning assembly 600 is provided at the bottom of the protection assembly 400. The positioning assembly 600 is used to provide auxiliary support for the total station 500 and the protection assembly 400. The positioning assembly 600 includes a fixed cylinder 610 and a support rod 630 movably arranged above the fixed cylinder 610. The support rod 630 is connected to the bottom of the horizontal mounting base 440 through a support seat 631 provided at its end.

[0088] The end of the fixed cylinder 610 is movably connected to a threaded sleeve 620 via a bearing. The fixed cylinder 610 is hollow, and the inner cavity of the threaded sleeve 620 is threadedly connected to a screw adjustment member 621. The bottom of the screw adjustment member 621 extends into the inner cavity of the fixed cylinder 610 and slides in contact with the surface thereof, while the top of the screw adjustment member 621 is connected to the bottom of the support rod 630.

[0089] Therefore, when the threaded sleeve 620 is rotated, the screw adjustment member 621 can be driven to move upward, and then the support rod 630 can be driven to move upward, thereby pushing the protective assembly 400 to move upward. Similarly, rotating the threaded sleeve 620 in the opposite direction can drive the protective assembly 400 to move downward.

[0090] Specifically, in order to prevent the screw adjustment member 621 from working with the threaded sleeve 620, the inner cavity of the fixed cylinder 610 is rectangular, and a rectangular block is connected to the bottom of the screw adjustment member 621. The rectangular block is slidably arranged in the inner cavity of the rectangular groove of the fixed cylinder 610, so that it can play an auxiliary limiting role for the screw adjustment member 621.

[0091] The end of the fixed cylinder 610 is movably connected to a threaded sleeve 620 via a bearing. The fixed cylinder 610 is hollow, and the inner cavity of the threaded sleeve 620 is threadedly connected to a screw adjustment member 621. The bottom of the screw adjustment member 621 extends into the inner cavity of the fixed cylinder 610 and slides in contact with the surface thereof, while the top of the screw adjustment member 621 is connected to the bottom of the support rod 630.

[0092] Therefore, when the threaded sleeve 620 is rotated, the screw adjustment member 621 can be driven to move upward, and then the support rod 630 can be driven to move upward, thereby pushing the protective assembly 400 to move upward. Similarly, rotating the threaded sleeve 620 in the opposite direction can drive the protective assembly 400 to move downward.

[0093] Specifically, in order to prevent the screw adjustment member 621 from working with the threaded sleeve 620, the inner cavity of the fixed cylinder 610 is rectangular, and a rectangular block is connected to the bottom of the screw adjustment member 621. The rectangular block is slidably arranged in the inner cavity of the rectangular groove of the fixed cylinder 610, so that it can play an auxiliary limiting role for the screw adjustment member 621.

[0094] A storage groove 611 is formed on the surface of the fixing cylinder 610, and the storage groove 611 cooperates with the stabilizing plate 640. An abutment groove 612 is formed on the surface of the fixing cylinder 610 and located within the inner cavity of the storage groove 611, and cooperates with the positioning plug 641.

[0095] The bottom of the inner cavity of the storage slot 611 is movably connected to a stabilizing plate 640 via a rotating shaft. The stabilizing plate 640 can be retracted into the storage slot 611 by rotating it. Similarly, the stabilizing plate 640 can be rotated in the opposite direction to drive it to expand outward. A positioning pin 641 is provided on one end of the surface of the positioning pin 641. When the stabilizing plate 640 is placed in the storage slot 611, one end of the positioning pin 641 is inserted into the abutment groove 612 to help fix the abutment groove 612.

[0096] The positioning plug 641 is slidably disposed on the surface of the stabilizing plug plate 640 . After the stabilizing plug plate 640 is unfolded, the positioning plug 641 can be inserted into the ground to fix the fixing tube 610 .

[0097] At the same time, a fixing plug 650 is connected to the bottom of the fixing cylinder 610, and the fixing plug 650 and the positioning plug 641 are used together to stably insert into the deep ground to stably place the fixing cylinder 610;

[0098] As a further optimization of this solution, a connecting plate is connected to the surface end of the fixing plug 650 and located at the bottom of the fixing tube 610. The connecting plate can assist in connecting an external rope and cooperating with an anchor nail to nail the fixing tube 610 to the ground, thereby further increasing the stability of the positioning assembly 600 in supporting the total station 500.

[0099] Specifically, the working principle of the deformation monitoring device for concrete panel rockfill dam is as follows: This solution uses the trajectory monitoring vehicle 230 retracted and extended by the workstation 220 to move in the walking channel 210 embedded in the dam body 100, and collects the internal deformation data of the dam body 100 in real time.

[0100] Surface deformation monitoring relies on the total station 500 installed on the surface of the dam body 100 and the cooperation of multiple prisms 510 laid on the covering layer 160. Through high-precision three-dimensional coordinate measurement, the displacement, settlement and panel deformation of the concrete surface layer 150 and the surface of the dam body 100 are monitored in real time; the protection of the total station 500 is guaranteed by the protection component 400: the air pump 430 is used to drive the pneumatic telescopic cover 420 to unfold downward on a daily basis, so that the fixing sleeve 421 is inserted into the socket 450; at this time, the motor drives the rotating rod 2 471, and the rotating rod 1 470 is linked to the meshing gear 461 and the toothed belt 460, driving the plug-in board 480 to insert into the positioning slot 422 and the plug-in hole 451 to lock the cover body, thereby achieving sun protection, waterproofing and anti-theft; during measurement, the pneumatic telescopic cover 420 shrinks to avoid.

[0101] The fixing plug 650 at the bottom of the fixing cylinder 610 and the extended stabilizing plate 640 are inserted into the ground via the positioning plug 641. Rotating the threaded sleeve 620 drives the screw adjustment member 621 up and down, driving the support rod 630 and support base 631 to adjust the height of the horizontal mounting base 440 and the assembly platform 442, ensuring the precise positioning of the total station 500. The turntable 441, driven by a motor at the bottom, assists the total station in rotating and measuring angles. All monitoring data is integrated and processed by the control box 310, which comprehensively assesses the safety of the dam body 100.

[0102] The above are merely examples of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may be subject to various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0103] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A deformation monitoring device for a concrete face rockfill dam, characterized in that: The invention comprises a dam body (100) constructed by filling with stone materials and equipped with an anti-seepage body, wherein an internal deformation monitoring component (200) for monitoring internal deformation of the dam body (100) is provided through the interior of the dam body (100); At the same time, a total station (500) and a prism (510) are mounted on the surface of the dam body (100), and the total station (500) and the prism (510) cooperate to monitor the surface deformation of the dam body (100), wherein a protective component (400) is provided on the outside of the total station (500) for protecting the total station (500); The protective assembly (400) includes a light shield (410), and a telescopic and expandable pneumatic telescopic cover (420) is integrally connected to the bottom of the light shield (410). After the pneumatic telescopic cover (420) is expanded, it can cover and protect the total station (500). The pneumatic telescopic cover (420) is driven by an air pump (430) arranged at the end of the inner cavity of the light shield (410).

2. The deformation monitoring device for concrete face rockfill dam according to claim 1, characterized in that: The internal deformation monitoring assembly (200) includes a walking channel (210) embedded in the dam body (100), and the other end of the walking channel (210) extends to the outside of the dam body (100) and is connected to a workstation (220), wherein the inner cavity of the workstation (220) is provided with a track monitoring traveling trolley (230).

3. The deformation monitoring device for concrete face rockfill dam according to claim 2, characterized in that: A photovoltaic panel group (300) and a control box (310) are also provided on one side of the total station (500); and a fixing sleeve (421) is integrally connected to the bottom of the pneumatic telescopic cover (420).

4. The deformation monitoring device for concrete face rockfill dam according to claim 3, characterized in that: The output end of the air pump (430) is connected to air pipe 1 (431), and the surface of air pipe 1 (431) is connected to air pipe 2 (432); A horizontal mounting base (440) is provided at the bottom of the pneumatic telescopic cover (420), an assembly platform (442) is installed above the horizontal mounting base (440), and a turntable (441) is installed through the middle of the horizontal mounting base (440).

5. The deformation monitoring device for concrete face rockfill dam according to claim 4, characterized in that: The outer ring of the surface of the fixed sleeve (421) is evenly penetrated with a plurality of positioning slots (422), the outer ring of the end of the assembly platform (442) is fixedly connected with a plug socket (450), and the surface of the plug socket (450) is annularly provided with a plurality of plug holes (451) used in conjunction with the positioning slots (422).

6. The deformation monitoring device for concrete face rockfill dam according to claim 5, characterized in that: A plurality of rotating rods (470) are installed through the surface of the horizontal mounting base (440), wherein a rotating rod (471) is installed through one end of the surface of the horizontal mounting base (440); A toothed belt (460) is provided on one side of the horizontal mounting base (440) and the assembly platform (442), and the surfaces of the first rotating rod (470) and the second rotating rod (471) are both provided with gears (461) used in conjunction with the toothed belt (460).

7. The deformation monitoring device for concrete face rockfill dam according to claim 6, characterized in that: The surface of the rotating rod 1 (470) is sleeved with a plug-in board (480), and the rotating rod 2 (471) is driven by a motor arranged at the bottom thereof.

8. The deformation monitoring device for concrete face rockfill dam according to claim 7, characterized in that: A positioning assembly (600) is provided at the bottom of the protection assembly (400). The positioning assembly (600) is used to provide auxiliary support for the total station (500) and the protection assembly (400). The positioning assembly (600) includes a fixed cylinder (610) and a support rod (630) movably arranged above the fixed cylinder (610).

9. The deformation monitoring device for concrete face rockfill dam according to claim 8, characterized in that: The end of the fixed cylinder (610) is movably connected to a threaded sleeve (620) via a bearing, and the fixed cylinder (610) is hollow, and the inner cavity of the threaded sleeve (620) is threadedly connected to a screw adjustment piece (621).

10. The deformation monitoring device for concrete face rockfill dam according to claim 9, characterized in that: A storage groove (611) is provided on the surface of the fixed cylinder (610), and an abutment groove (612) is provided on the surface of the fixed cylinder (610) and located in the inner cavity of the storage groove (611); The bottom of the inner cavity of the storage tank (611) is movably connected to a stabilizing plug plate (640) via a rotating shaft, and a positioning plug (641) is provided through one end of the surface of the positioning plug (641); The bottom of the fixing cylinder (610) is connected to a fixing plug (650), and the fixing plug (650) and the positioning plug (641) are used in conjunction with each other.

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