Maintenance device and maintenance method for rockfill dam face concrete

Abstract

The present invention belongs to the technical field of concrete construction, and relates to a maintenance device and a maintenance method for rockfill dam panel concrete, the maintenance device comprising a power device, a winding device and a maintenance component; the power device is connected to the winding device and drives the winding device to work; the maintenance component is arranged on the winding device and moves synchronously with the winding device; the maintenance component is a thermal insulation blanket, a radiation-proof black cloth or a running water maintenance device. The present invention provides a maintenance device and a maintenance method for rockfill dam panel concrete that can integrate thermal insulation, radiation protection and running water maintenance.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete construction, and relates to a curing device and a curing method for rockfill dam face concrete, and in particular to a curing device and a curing method integrating thermal insulation, running water curing and radiation protection. Background Art

[0002] As the main anti-seepage structure of the face rockfill dam, the face concrete has a low tensile strength. Affected by its own hydration heat, shrinkage deformation and external environment, the concrete structure is very prone to temperature shrinkage cracks. The generation of concrete cracks will have an important impact on the safety, quality and durability of the structure. At the same time, the performance of early concrete will also have a great impact on the performance of later concrete. Investigations and studies have shown that 80% of the cracks in concrete structures are caused by temperature deformation, shrinkage deformation and uneven changes, especially in high-altitude and cold areas where the temperature difference between day and night varies greatly. Therefore, research on temperature control and crack prevention of face concrete and water curing is extremely important, which is conducive to improving the safety and stability of the overall structure of the dam.

[0003] The radiation protection measures, thermal insulation measures and running water curing measures of traditional panel concrete are all separate, and the thermal insulation blanket on the panel concrete is laid slowly by hand, and the materials used are some plastic sheets, straw mats, sacks or geomembranes, etc. Most projects do not consider the impact of solar radiation on panel concrete; in areas and times with large temperature changes, moisturizing and thermal insulation measures will be taken at the same time, and some thermal insulation materials with good water absorption such as sponges, fleece felt thermal insulation blankets, and composite geomembranes will be used. According to statistical results, even if the above series of thermal insulation and moisturizing measures are taken, cracks in panel concrete caused by large changes in temperature and humidity still account for more than 80%. Among them, the thermal insulation curing materials of high-cold and high-altitude concrete cannot achieve the expected effect, and manual water sprinkling curing or curing agent spraying curing does not achieve the standard running water curing effect, which is also an important reason for the cracks in concrete. Therefore, it is necessary to develop a more scientific and efficient curing device to achieve refined curing of panel concrete. Summary of the invention

[0004] In order to solve the above technical problems existing in the background technology, the present invention provides a curing device and a curing method for rockfill dam face concrete which can integrate thermal insulation, radiation protection and running water curing.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A curing device for rockfill dam panel concrete, characterized in that: the curing device for rockfill dam panel concrete comprises a power device, a winding device and a curing component; the power device is connected to the winding device and drives the winding device to work; the curing component is arranged on the winding device and moves synchronously with the winding device; the curing component is a thermal insulation blanket, a radiation-proof black cloth or a running water curing device.

[0007] Preferably, when the maintenance components provided by the present invention are thermal insulation quilt and anti-radiation black cloth, the winding device includes a main shaft, a double-hole bracket, a winding drum and a cover plate; the main shaft includes an upper main shaft and a lower main shaft; the upper main shaft and the lower main shaft are arranged in parallel and pass through the double-hole bracket from top to bottom in sequence; the power device is connected to the upper main shaft and drives the upper main shaft to rotate axially around the upper main shaft; the power device is connected to the lower main shaft and drives the lower main shaft to rotate axially around the lower main shaft; the winding drum is mounted on the lower main shaft; the thermal insulation quilt is wound on the winding drum; the anti-radiation black cloth is wound on the upper main shaft; the cover plate is arranged on the winding drum and pressed on the thermal insulation quilt.

[0008] Preferably, the ends of the thermal insulation quilt and the ends of the radiation-proof black cloth provided by the present invention are respectively mounted on a secondary shaft, and a weight-increasing ball is arranged on the secondary shaft; there are multiple weight-increasing balls, and the multiple weight-increasing balls are evenly distributed on the secondary shaft.

[0009] Preferably, a groove is provided on the thermal insulation quilt provided by the present invention along the axial direction of the thermal insulation quilt; and the running water maintenance device is embedded in the groove.

[0010] Preferably, the water flow maintenance device provided by the present invention comprises a main water pipe and a branch water pipe; there are multiple branch water pipes, which are parallel to each other and connected with the main water pipe; solenoid valve nozzles are evenly distributed on the branch water pipes; and the branch water pipes are embedded in the grooves of the thermal insulation quilt.

[0011] Preferably, the maintenance device for rockfill dam face concrete provided by the present invention further comprises a pipe assembly and a stripping device; the pipe assembly and the stripping device are connected to the water distribution pipe and drive the water distribution pipe to be embedded in the groove or to be removed from the groove.

[0012] Preferably, the pipeline combination and stripping device provided by the present invention includes a hydraulic cylinder, a spring chuck and a kit; the hydraulic cylinder includes a top hydraulic cylinder and a bottom hydraulic cylinder; the spring chuck includes a top spring chuck and a bottom spring chuck; the kit is sleeved on the pipe wall of the main water pipe; the winding drum is provided with a countersunk hole along the radial direction of the winding drum; one end of the top hydraulic cylinder is fixedly set in the countersunk hole of the winding drum, and the other end is connected to the kit through the top spring chuck and drives the main water pipe and the water distribution pipe to be embedded in the groove of the thermal insulation quilt through the kit; one end of the bottom hydraulic cylinder is fixedly set on the ground at the top of the rockfill dam, and the other end is connected to the kit through the bottom spring chuck and drives the main water pipe and the water distribution pipe to be moved out of the groove of the thermal insulation quilt through the kit.

[0013] Preferably, the solenoid valve nozzle provided by the present invention comprises a solenoid valve and a water mist nozzle; the water distribution pipe is connected with the water mist nozzle through the solenoid valve.

[0014] Preferably, the power device provided by the present invention includes a transmission, a motor, a control panel, a thermal insulation regulated switch, a high-pressure water pipe regulated switch, a solenoid valve regulated switch and an anti-radiation black cloth regulated switch; the control panel is fixedly arranged on the side wall of the motor; the thermal insulation regulated switch, the high-pressure water pipe regulated switch, the solenoid valve regulated switch and the anti-radiation black cloth regulated switch are respectively arranged on the control panel; the high-pressure water pipe regulated switch is connected to the main water pipe; the solenoid valve regulated switch is connected to the solenoid valve; the thermal insulation regulated switch is connected to the motor and drives the winding drum to rotate axially around the winding drum through the motor and the transmission; the anti-radiation black cloth regulated switch is connected to the motor and drives the upper main shaft to rotate axially around the upper main shaft through the motor and the transmission.

[0015] A curing method for rockfill dam panel concrete based on the curing device for rockfill dam panel concrete as described above, characterized in that the curing method comprises the following steps:

[0016] 1) Using DTS, temperature and humidity sensors and meteorological monitors to obtain massive multi-source monitoring data in real time; the massive multi-source monitoring data includes the temperature inside the concrete, the humidity inside the concrete, the ambient temperature at the location, the ambient humidity at the location, the solar radiation intensity at the location and the wind speed at the location;

[0017] 2) regularly transmitting the massive multi-source monitoring data obtained in step 1) to the cloud via IoT devices;

[0018] 3) Establishing the maintenance threshold of rockfill dam face concrete; the maintenance threshold includes solar radiation intensity threshold, concrete surface humidity threshold, and concrete internal and external temperature difference threshold;

[0019] 4) determining whether the massive multi-source monitoring data obtained in step 1) exceeds the maintenance threshold established in step 3); if so, no maintenance is required; if not, the rockfill dam face concrete is maintained until the maintenance is completed;

[0020] Preferably, the specific implementation of step 4) is:

[0021] Determine whether the solar radiation intensity on the surface of the rockfill dam face concrete in step 1) exceeds the solar radiation intensity threshold in step 3), if so, cover the rockfill dam face concrete with a radiation-proof black cloth until the curing is completed; if not, there is no need to cover with a radiation-proof black cloth;

[0022] Determine whether the surface humidity of the concrete surface of the rockfill dam panel in step 1) exceeds the concrete surface humidity threshold in step 3), if so, perform running water curing on the concrete surface of the rockfill dam panel until the curing is completed; if not, no running water curing is required;

[0023] Determine whether the temperature difference between the inside and outside of the rockfill dam face concrete in step 1) exceeds the concrete temperature difference threshold in step 3), if so, cover the surface of the rockfill dam face concrete with a thermal insulation blanket until the curing is completed, if not, no need to cover with a thermal insulation blanket;

[0024] 5) After the curing is completed, the curing parts are rolled up by the winding device.

[0025] The advantages of the present invention are:

[0026] The present invention provides a maintenance device and maintenance method for rockfill dam panel concrete, the maintenance device includes a power device, a winding device and a maintenance component; the power device is connected to the winding device and drives the winding device to work; the maintenance component is arranged on the winding device and moves synchronously with the winding device; the maintenance component is a thermal insulation blanket, a radiation-proof black cloth or a running water maintenance device. The maintenance method includes: 1) using DTS, temperature and humidity sensors and meteorological monitors to obtain massive multi-source monitoring data in real time; 2) regularly transmitting the massive multi-source monitoring data obtained in step 1) to the cloud through an Internet of Things device; 3) establishing a maintenance threshold for rockfill dam panel concrete; the maintenance threshold includes a solar radiation intensity threshold, a concrete surface humidity threshold, and a concrete internal and external temperature difference threshold; 4) judging whether the massive multi-source monitoring data obtained in step 1) exceeds the maintenance threshold established in step 3); if so, no maintenance is required; if not, the rockfill dam panel concrete is maintained until the maintenance is completed; 5) after the maintenance is completed, the maintenance component is rolled up by the winding device. The present invention can control the release and reeling of thermal insulation blankets, radiation-proof black cloths, and high-pressure water pipes, as well as the opening and closing of electromagnetic valve nozzles and the size of water flow through system instructions; and reasonably control the laying and reeling of thermal insulation blankets, radiation-proof black cloths, and high-pressure water pipes according to the massive multi-source data collected and processed by DTS and meteorological monitors; the combined reeling and peeling of high-pressure water pipes and thermal insulation blankets can be controlled by a control panel; the cost of manual maintenance and many shortcomings of manual maintenance are eliminated, which has important theoretical research and engineering application significance for ensuring the quality of panel concrete. The present invention provides a maintenance device and maintenance method for rockfill dam panel concrete that integrates thermal insulation, radiation protection, and running water maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the curing device for rockfill dam face concrete provided by the present invention;

[0028] Figure 2 It is a schematic structural diagram of the winding device (upper part) adopted by the present invention;

[0029] Figure 3 It is a structural schematic diagram of the winding device (lower part) adopted by the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the running water curing device adopted by the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the power device adopted by the present invention;

[0032] Figure 6 It is a structural schematic diagram of the solenoid valve nozzle used in the present invention;

[0033] Figure 7It is a schematic diagram of the structure of the pipeline combination and stripping device used in the present invention;

[0034] Figure 8 It is a flow chart of system data collection, analysis and feedback control adjustment adopted by the present invention;

[0035] Fig. 9 It is a schematic flow chart of a curing device for rockfill dam face concrete provided by the present invention.

[0036] in:

[0037] 1- thermal insulation blanket; 2- rewinding device; 201- main shaft; 202- spiral coupling; 203- rewinding drum; 204- cover plate; 205- double-hole bracket; 207- secondary shaft; 206- weight-increasing ball; 3- water flow maintenance device; 301- main water pipe; 302- water distribution pipe; 4- solenoid valve nozzle; 401- solenoid valve; 402- water mist nozzle; 5- pipe assembly and stripping device; 501- hydraulic cylinder; 5011- top hydraulic cylinder; 5012- bottom hydraulic cylinder; 502- spring chuck; 5021- top spring chuck; 5022- bottom spring chuck; 503- kit; 6- power unit; 601- transmission; 602- motor; 603- control board; 604- thermal insulation blanket control switch; 605- high-pressure water pipe control switch; 606- solenoid valve control switch; 607- radiation-proof black cloth control switch. DETAILED DESCRIPTION

[0038] The present invention provides a maintenance device and a maintenance method for rockfill dam panel concrete. The device is based on multi-source information such as ambient temperature, ambient humidity, solar radiation, wind force and speed measured by DTS, temperature and humidity sensors, and meteorological monitors. According to the multi-source information analysis and processing results, an intelligent management and maintenance system platform issues control instructions to achieve the retraction and deployment of thermal insulation blankets, radiation-proof black cloths, and high-pressure water pipes. The main usage method of the present invention is as follows: dynamically adjust the retraction and extension of each functional component according to the external environment and the internal changes of the panel concrete; when the solar radiation intensity is too high during the day, use the winding device to release the anti-radiation black cloth to protect the panel concrete from radiation; when the surface humidity of the concrete or the temperature difference between the inside and outside of the concrete does not reach the system threshold, adjust the winding device to release the thermal insulation blanket, and when the thermal insulation blanket covers the panel concrete, control the pipeline combination and the stripping device to strip the high-pressure water pipe and lay it on the panel concrete, and roll up the thermal insulation blanket; when the temperature difference between the inside and outside of the panel concrete exceeds the system threshold, control the winding device to release the thermal insulation blanket, and use the pipeline combination and the stripping device to combine the high-pressure water pipe and the thermal insulation blanket channel to achieve the effect of simultaneous water curing and thermal insulation; control the winding device to perform curing according to the multi-source data processed in real time, and continue until the panel concrete is successfully cured. The present invention realizes effective corresponding measures for heat preservation, moisture retention and radiation protection of panel concrete through the obtained multi-source measured data, and can remotely control the running water maintenance function and the winding function of the insulation blanket, radiation protection black cloth and high-pressure water pipe, thereby reducing the risk of cracking of panel concrete due to improper maintenance, reducing the cost of maintenance and labor, and improving the quality of the project.

[0039] The curing method of the curing device for the rockfill dam face concrete provided by the present invention comprises the following steps:

[0040] Step 1: Use DTS, temperature and humidity sensors, and weather monitors to obtain real-time local ambient temperature, local ambient humidity, local solar radiation intensity, local wind speed, and temperature and humidity inside the concrete. Real-time data on the concrete interior and environment are transmitted to the cloud via IoT devices every half an hour or one hour.

[0041] Step 2: Use technologies such as the Internet of Things and 5G to transmit the massive multi-source data collected in real time, and use database management, data fusion and other technologies to integrate and manage the massive multi-source monitoring data and complete cloud storage of the data.

[0042] Step 3: The database calls the data stored in the cloud server, and based on multi-source measured data, uses data mining, intelligent algorithms, finite element analysis and other technologies to build a maintenance effect evaluation system that integrates indicators such as the temperature difference between the inside and outside of concrete, concrete temperature gradient, concrete surface humidity change, ambient temperature, ambient humidity and solar radiation intensity. The intelligent maintenance constructed by this system sets thresholds based on the internal and external temperature difference and humidity requirements in the maintenance specifications, uses finite element analysis technology to set thresholds for solar radiation intensity based on multi-source measured data, and establishes an intelligent maintenance system for panel concrete.

[0043] Step 4: By referring to the Code for Curing Large Volume Concrete (GB50496-2018) (avoiding the temperature difference between the inside and outside of the concrete to exceed 15°C, maintaining humidity above 95%, and the solar radiation intensity exceeding the threshold, etc.), and combining the measured data obtained in Step 3, the system determines whether the data needs to execute the maintenance instruction control and sends the instruction; determines whether the solar radiation intensity exceeds the system threshold (the threshold set in Step 3). If so, the system accepts the new instruction control device to cover the radiation-proof black cloth, otherwise it continues to execute the original command; determines whether the temperature difference between the inside and outside of the concrete exceeds the system threshold. If so, the system accepts the new instruction control device to cover the insulation blanket, otherwise it continues to execute the original command; determines whether the surface humidity of the concrete exceeds the system threshold. If so, the system accepts the new instruction to open and close the solenoid valve and adjust the opening, otherwise it continues to execute the original command.

[0044] Step 5: Send the maintenance instruction of Step 4 to the control board. When the solar radiation intensity exceeds the threshold, the system sends the maintenance instruction. After the IoT device receives the instruction, the control motor drives the upper spindle to release the radiation-proof black cloth. The lower end of the radiation-proof black cloth has several weight-increasing balls to increase its weight and make its release smoother. When the temperature difference between the inside and outside of the concrete exceeds the threshold, the system sends the maintenance instruction. After the IoT device receives the instruction, the control motor drives the lower spindle to release the thermal insulation blanket on it. The thermal insulation blanket is compacted on the winding drum by the cover plate, and the lower end of the blanket has weight-increasing balls for easy release. When the humidity on the concrete surface exceeds the threshold, the system sends the maintenance instruction. The IoT device receives the instruction and controls the pipeline combination and the stripping device to lay the high-pressure water pipe separately on the panel concrete, and then passes the instruction to the solenoid valve control switch on the control board to control the solenoid valve to close or reduce the flow.

[0045] Step 6: After the maintenance is completed, the system sends instructions to the IoT device to control the winding device to rewind each device.

[0046] See also Figure 1In order to improve the maintenance measures of panel concrete in high-cold and high-altitude areas, the present invention provides a maintenance device for rockfill dam panel concrete, including: an insulation blanket 1, a winding device 2, a running water maintenance device 3, an electromagnetic valve nozzle 4, a pipeline combination and stripping device 5 and a power device 6. The insulation blanket is sewn by sewing, and there are multiple channels on it that can be embedded with high-pressure water pipes, and the water sprayed on the panel concrete by the electromagnetic valve nozzle 4 can flow in the channels. The electromagnetic valve nozzle 4 is instructed by the system and its opening and closing and opening size are controlled by the server device.

[0047] The insulation blanket 1 is connected to the winding device 2 through the winding drum 203, and a clamping cover is added on it to fix the insulation blanket 1 on the winding drum 203 through self-tapping screws. The four winding drums 203 are connected through two main shafts 201, and the two main shafts 201 are connected through a spiral coupling 202; the insulation blanket 1 used in the present invention not only has the effect of heat preservation, but also has several channels sewn on it by sewing to facilitate the combination and peeling of the high-pressure water pipe and the insulation blanket 1, and during night maintenance, the water sprayed by the solenoid valve nozzle 4 can flow in the channel to achieve water maintenance. The thickness of the insulation blanket 1 is 10cm, and there are sewn compressed channels on it. The length of each channel is 1.5m, which is convenient for the sprayed water to flow freely in the channel. The flow of water will also take away part of the heat of the concrete, which is more conducive to the maintenance of the panel concrete. The connection between the insulation blanket 1 and the winding device 2 is compressed to 2cm and fixed by a cover plate 204 to prevent the insulation blanket 1 from detaching during the winding process.

[0048] See also Figure 2 as well as Figure 3The upper part of the winding device 2 used in the present invention is composed of four 6m detachable main shafts 201, spiral couplings 202, winding rollers 203, cover plates 204 and double-hole brackets 205; its main function is to provide a winding function for the thermal insulation quilt 1, of which two main shafts 201 are detachable and connected by spiral couplings 202 for easy installation and retraction. The lower part of the winding device 2 is composed of a number of weight-increasing balls 206 and a secondary shaft 207; its main purpose is to help increase the weight of the thermal insulation quilt 1 so that it can be released more conveniently and smoothly on the concrete slope surface of the panel. The diameter of the main shaft 201 is 8cm, and the two main shafts 201 are connected by spiral couplings 202. Two winding rollers 203 with a diameter of 30cm are nested outside each main shaft 201. The length of the winding roller 203 is 1.5m, and it is hollowed out in a fan shape to reduce the weight of the roller and save materials. A corner of the winding drum 203 is cut off to place the insulation blanket 1 on it, and then the insulation blanket 1 is pressed on the notch of the winding drum 203 using a cover plate 204 with a length of 1.5m, and screws with a diameter of 8mm are evenly arranged on the cover plate 204 so that the insulation blanket 1 is completely fixed on the winding drum 203. The winding device 2 is mounted on the lower main shaft of the double-hole bracket 205; on the other side of the insulation blanket 1, there are two 6m secondary shafts 207 connected by a spiral coupling 202. On the two secondary shafts 207, a number of weighted balls 206 with a diameter of 10cm are applied, which are more conducive to the release of the insulation blanket; the upper main shaft 201 is responsible for the rolling of the radiation-proof black cloth, and there is also a secondary shaft 207 at the tail of the radiation-proof black cloth, on which a number of weighted balls 206 with a diameter of 2cm are also applied to help the radiation-proof black cloth be released smoothly on the concrete slope surface of the panel.

[0049] See also Figure 4 The water flow curing device 3 used in the present invention is composed of a main water pipe 301, a water branch pipe 302 and a solenoid valve nozzle 4; four water branch pipes 302 are connected to the main water pipe 301, and the solenoid valve nozzles 4 are evenly arranged on each water branch pipe 302. The main function of the device is to perform water flow curing on the panel concrete, and the water flow size and flow rate can be adjusted to be more suitable for the panel concrete curing at that time during the curing process. The length of the main water pipe 301 is 14m. The main water pipe 301 is connected to four water branch pipes 302. The length of each water branch pipe 302 is 120.5m, and each water branch pipe 302 is 4m apart, and a plurality of solenoid valve nozzles 4 are also arranged thereon. The interval between the solenoid valves 401 is 10m each, and the water mist nozzle 402 of the solenoid valve nozzle 4 has a spray coverage diameter of 3m. See Figure 6 The solenoid valve nozzle 4 used in the present invention is composed of a solenoid valve 401 and a water mist nozzle 402; the solenoid valve nozzle 4 is evenly arranged on each water distribution pipe 302 at intervals of 10m, and its main function is to control the water mist nozzle 402 to perform water flow maintenance, and it can spray water mist within a maximum radius of 3m.

[0050] 501-hydraulic cylinder; 5011-top hydraulic cylinder; 5012-bottom hydraulic cylinder; 502-spring chuck; 5021-top spring chuck; 5022-bottom spring chuck; 503-kit;

[0051] See also Figure 7 The pipeline combination and stripping device 5 includes a hydraulic cylinder 501, a spring chuck 502 and a kit 503, wherein the hydraulic cylinder 501 includes a top hydraulic cylinder 5011 and a bottom hydraulic cylinder 5012, and the spring chuck 502 includes a top spring chuck 5021 and a bottom spring chuck 5022; the pipeline combination and stripping device 5 can be used for stripping and combining high-pressure water pipes under different conditions to achieve a more efficient maintenance effect. The kit 503 is sleeved on the pipe wall of the main water pipe 301; a countersunk hole is arranged on the winding drum 203 along the radial direction of the winding drum 203; one end of the top hydraulic cylinder 5011 is fixedly arranged in the countersunk hole of the winding drum 203, and the other end is connected to the kit 503 through the top spring clamp 5021 and drives the main water pipe 301 and the water distribution pipe 302 to be embedded in the groove of the thermal insulation quilt 1 through the kit 503; one end of the bottom hydraulic cylinder 5012 is fixedly arranged on the ground of the top of the rockfill dam, and the other end is connected to the kit 503 through the bottom spring clamp 5022 and drives the main water pipe 301 and the water distribution pipe 302 to be moved out of the groove of the thermal insulation quilt 1 through the kit 503.

[0052] See also Figure 1The top hydraulic cylinder 5011 is arranged in the countersunk holes of the four winding rollers, and the bottom hydraulic cylinder 5012 is fixed on the ground. Its function is: when the surface humidity of the panel concrete and the temperature difference between the inside and outside do not reach the system threshold, the intelligent management and maintenance system issues instructions, the server equipment receives the instructions, and the control panel adjusts the winding device 2 to lay the insulation blanket 1 flat on the panel concrete. The top hydraulic cylinder 5011 of the pipe combination and stripping device 5 extends downward, and the top spring clamp 5021 disconnects the kit 503, so that the main water pipe 301 is separated from the winding roller 203, and the bottom hydraulic cylinder 5012 extends upward, and the bottom spring clamp 5022 thereon bites the kit 503, and then contracts downward through the bottom hydraulic cylinder 5012, so that the main water pipe 301 and the water distribution pipe 302 connected thereto are stripped from the insulation blanket 1 and laid separately on the panel concrete for water curing. When the temperature difference between the inside and outside of the panel concrete exceeds the threshold, the intelligent management and maintenance system issues an instruction, the server equipment receives the instruction, and the control panel adjusts the winding device 2 to lay the insulation blanket 1 flat on the panel concrete, and uses the pipe combination and the top hydraulic cylinder 5011 of the stripping device 5 to extend downward, and the top spring clamp 5021 thereon bites the kit 503, and the bottom spring clamp 5022 of the bottom hydraulic cylinder 5012 disconnects the bite of the kit 503, and the top hydraulic cylinder 5011 is used to shrink upward to drive the main water pipe 301 and the water distribution pipe 302 connected thereto to be combined into the groove of the insulation blanket 1 laid flat on the panel concrete, so as to achieve the effect of simultaneous insulation and water maintenance.

[0053] The present invention meets the working conditions of different regions such as high-cold and high-altitude areas and plains, and adjusts the flow rate and opening and closing of the solenoid valve nozzle according to the state of the panel concrete at that time, thereby realizing more intelligent water flow maintenance.

[0054] See also Figure 5 The power device 6 used in the present invention is composed of a transmission 601, a motor 602, a control panel 603, a thermal insulation quilt control switch 604, a high-pressure water pipe control switch 605, a solenoid valve control switch 606 and an anti-radiation black cloth control switch 607; its function is to use temperature and humidity sensors, DTS and meteorological monitors to collect data, analyze and process the data in real time through the system and issue instructions, and after receiving the instructions, the control switch controls the motor to execute the corresponding instructions to start and shut down the thermal insulation quilt, high-pressure water pipe and anti-radiation black cloth winding device; control the combination and stripping of the high-pressure water pipe and the thermal insulation quilt channel; use the solenoid valve control switch 606 to control the flow size and opening and closing of the solenoid valve nozzle 4 in the water maintenance device 3.

Claims

1. A maintenance device for rockfill dam face concrete, characterized by: The maintenance device for rockfill dam face concrete comprises a power device (6), a winding device (2), a pipe assembly and stripping device (5), and a maintenance component; the power device (6) is connected to the winding device (2) and drives the winding device (2) to work; the maintenance component is arranged on the winding device and moves synchronously with the winding device; the maintenance component is a heat-insulating blanket (1), a radiation-proof black cloth or a running water maintenance device (3); the running water maintenance device (3) comprises a main water pipe (301) and a water distribution pipe (302); the pipe assembly and stripping device (5) is connected to the water distribution pipe (302) and drives the water distribution pipe (302) to be embedded in a groove or to be removed from the groove; The maintenance components are a thermal insulation quilt (1) and a radiation-proof black cloth, and the winding device (2) comprises a main shaft (201), a double-hole bracket (205), a winding roller (203) and a cover plate (204); the main shaft (201) comprises an upper main shaft and a lower main shaft; the upper main shaft and the lower main shaft are arranged in parallel and penetrate the double-hole bracket (205) in sequence from top to bottom; the power device (6) is connected to the upper main shaft and drives the upper main shaft to rotate around the axial direction of the upper main shaft; the power device (6) is connected to the lower main shaft and drives the lower main shaft to rotate around the axial direction of the lower main shaft; the winding roller (203) is sleeved on the lower main shaft; the thermal insulation quilt (1) is wound on the winding roller (203); the radiation-proof black cloth is wound on the upper main shaft; the cover plate (204) is arranged on the winding roller (203) and pressed on the thermal insulation quilt (1); The pipeline assembly and stripping device (5) comprises a hydraulic cylinder (501), a spring chuck (502) and a kit (503); the hydraulic cylinder (501) comprises a top hydraulic cylinder (5011) and a bottom hydraulic cylinder (5012); the spring chuck (502) comprises a top spring chuck (5021) and a bottom spring chuck (5022); the kit (503) is sleeved on the wall of the main water pipe (301); a countersunk hole is provided on the winding drum (203) along the radial direction of the winding drum (203); a portion of the top hydraulic cylinder (5011) is provided with a countersunk hole; One end of the bottom hydraulic cylinder (5012) is fixedly arranged in the countersunk hole of the winding drum (203), and the other end is connected to the set (503) through the top spring clamp (5021), and drives the main water pipe (301) and the water branch pipe (302) to be embedded in the groove of the thermal insulation quilt (1) through the set (503); one end of the bottom hydraulic cylinder (5012) is fixedly arranged on the top ground of the rockfill dam, and the other end is connected to the set (503) through the bottom spring clamp (5022), and drives the main water pipe (301) and the water branch pipe (302) to be moved out of the groove of the thermal insulation quilt (1) through the set (503).

2. The curing device for rockfill dam face concrete according to claim 1 is characterized in that: The end of the thermal insulation quilt (1) and the end of the radiation-proof black cloth are respectively mounted on a secondary shaft (207), and a weight-increasing ball (206) is arranged on the secondary shaft (207); there are a plurality of weight-increasing balls (206), and the plurality of weight-increasing balls (206) are evenly distributed on the secondary shaft (207).

3. The curing device for rockfill dam face concrete according to claim 2 is characterized in that: A groove is provided on the thermal insulation quilt (1) along the axial direction of the thermal insulation quilt (1); and the running water maintenance device (3) is embedded in the groove.

4. The curing device for rockfill dam face concrete according to claim 3 is characterized in that: There are multiple water distribution pipes (302), which are arranged in parallel and interlinked with the main water pipe (301); solenoid valve nozzles (4) are evenly distributed on the water distribution pipes (302); and the water distribution pipes (302) are embedded in the grooves of the thermal insulation quilt (1).

5. The curing device for rockfill dam face concrete according to claim 4 is characterized in that: The solenoid valve nozzle (4) comprises a solenoid valve (401) and a water mist nozzle (402); the water distribution pipe (302) is connected to the water mist nozzle (402) via the solenoid valve (401).

6. The curing device for rockfill dam face concrete according to claim 5, characterized in that: The power device (6) comprises a transmission (601), a motor (602), a control panel (603), a heat preservation controlled switch (604), a high-pressure water pipe control switch (605), a solenoid valve control switch (606) and a radiation-proof black cloth control switch (607); the control panel (603) is fixedly arranged on a side wall of the motor (602); the heat preservation controlled switch (604), the high-pressure water pipe control switch (605), the solenoid valve control switch (606) and the radiation-proof black cloth control switch (607) are respectively arranged on the control panel (603) The high-pressure water pipe control switch (605) is connected to the main water pipe (301); the solenoid valve control switch (606) is connected to the solenoid valve (401); the heat preservation control switch (604) is connected to the motor (602) and drives the winding drum (203) to rotate around the axial direction of the winding drum (203) through the motor (602) and the transmission (601); the radiation-proof black cloth control switch (607) is connected to the motor (602) and drives the upper main shaft to rotate around the axial direction of the upper main shaft through the motor (602) and the transmission (601).

7. A method for curing rockfill dam face concrete based on the curing device for rockfill dam face concrete according to any one of claims 1 to 6, characterized in that: The maintenance method comprises the following steps: 1) Use DTS, temperature and humidity sensors and meteorological monitors to obtain massive multi-source monitoring data in real time; the massive multi-source monitoring data includes the temperature inside the concrete, the humidity inside the concrete, the ambient temperature at the location, the ambient humidity at the location, the solar radiation intensity at the location and the wind speed at the location; 2) The massive multi-source monitoring data obtained in step 1) is regularly transmitted to the cloud through IoT devices; 3) Establishing the maintenance threshold of rockfill dam face concrete; the maintenance threshold includes solar radiation intensity threshold, concrete surface humidity threshold, and concrete internal and external temperature difference threshold; 4) Determine whether the massive multi-source monitoring data obtained in step 1) exceeds the maintenance threshold established in step 3); if so, no maintenance is required; if not, the rockfill dam face concrete is maintained until the maintenance is completed; 5) After the curing is completed, the curing component is rolled up by the winding device (2).

8. The curing method according to claim 7, characterized in that: The specific implementation method of step 4) is: Determine whether the solar radiation intensity on the surface of the rockfill dam face concrete in step 1) exceeds the solar radiation intensity threshold in step 3), if so, cover the rockfill dam face concrete with a radiation-proof black cloth until the curing is completed; if not, there is no need to cover it with a radiation-proof black cloth; Determine whether the surface humidity of the concrete surface of the rockfill dam panel in step 1) exceeds the concrete surface humidity threshold in step 3), if so, perform running water curing on the concrete surface of the rockfill dam panel until the curing is completed; if not, no running water curing is required; Determine whether the internal and external temperature difference of the rockfill dam panel concrete in step 1) exceeds the concrete internal and external temperature difference threshold in step 3). If so, cover the surface of the rockfill dam panel concrete with a thermal insulation blanket until the curing is completed. If not, there is no need to cover it with a thermal insulation blanket.

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