Slope surface adaptive sinking and floating type slope protection maintenance device

Abstract

The invention relates to the technical field of slope protection maintenance, and discloses a slope adaptive sinking and floating type slope protection maintenance device which comprises a cofferdam structure which comprises a cofferdam main wall and a cofferdam side wall fixedly connected to the side surface of the cofferdam main wall. The cofferdam structure comprises a cofferdam main wall and cofferdam side walls, the space defined by the cofferdam main wall and the cofferdam side walls forms a local water-free maintenance working cavity used for covering the outer side of the damaged part of the slope protection, and the water stopping structure is arranged below the cofferdam structure and used for being attached to the slope protection face so as to achieve sealed isolation of the maintenance working cavity and external water. The device can directly reach a designated damaged canal section for positioning through water surface floating transportation, can support multi-point continuous efficient repair, can be attached to slope protection surfaces with different slope directions and different gradients, improves the adaptive capacity to complex terrains, widens the universal range, avoids the risk that the water bag is locally pressed and exploded, and improves the construction efficiency. The service life of the water bag is prolonged.

Description

Technical Field

[0001] This invention relates to the field of slope protection maintenance technology, specifically to a slope-adaptive floating slope protection maintenance device. Background Technology

[0002] During the routine operation of large-scale water conservancy projects, water diversion projects, and navigable canals, underwater concrete revetments are constantly subjected to water erosion, wave impact, and periodic freeze-thaw cycles, making them prone to structural damage such as lining plate breakage, cracking, or surface freeze-thaw spalling. To ensure the safety of water conservancy facilities and the normal navigation of waterways, it is often impossible to carry out maintenance using extensive methods such as full-line dewatering or navigation closure. Instead, high-quality repairs must be carried out on the damaged areas of the revetment through localized underwater repairs or by creating localized dry environments, without interrupting navigation or dewatering.

[0003] Currently, for the repair of damaged lining panels or freeze-thaw damage to underwater slopes, the method of constructing fixed cofferdams on-site is adopted. During construction, workers use large engineering machinery (such as excavators and bulldozers) or manual labor to dump and pile large amounts of earth, sandbags, or clay along the water area around the damaged section of the channel, forcibly building a closed solid cofferdam structure in the water. After the solid cofferdam is closed and the water flow is cut off, water pumps are used to pump out all the water inside the cofferdam, thus exposing the damaged slope section to the air so that construction workers can enter the pit to carry out dry repair work.

[0004] Currently, the construction of fixed cofferdams requires huge material costs, and the construction and dismantling of cofferdams are complicated, resulting in slow maintenance progress and high construction costs. At the same time, the construction method cannot achieve efficient repair at multiple points, and the construction method has poor slope adaptability, making it difficult to flexibly adjust the center of gravity and inclination angle on non-standard slope protection surfaces with different slope directions and slopes, and it cannot achieve precise fit with the slope surface.

[0005] Therefore, the purpose of this invention is to provide a slope-adaptive floating slope protection and maintenance device to overcome the shortcomings of the prior art. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a slope-adaptive floating slope protection maintenance device, which solves the problems of high material costs, cumbersome construction and dismantling procedures leading to slow maintenance progress and high construction costs associated with traditional fixed cofferdam construction.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a slope-adaptive floating slope protection and maintenance device, comprising: The cofferdam structure includes a main wall and a side wall fixedly connected to the side surface of the main wall. The space enclosed by the main wall and the side wall forms a localized, waterless repair work chamber for covering the outside of the damaged slope. A water-stopping structure is installed below the cofferdam structure to fit the slope protection surface and achieve a sealed isolation between the maintenance working chamber and the external water body. The water-stopping structure includes a water bladder and a U-shaped water-stopping strip installed below the water bladder. A fluid pressure sensor is installed inside the water bladder. The first pontoon and the second pontoon are symmetrically arranged on both sides of the cofferdam structure and connected to the cofferdam structure through a connecting frame. The first pontoon is equipped with a first liquid level sensor and the second pontoon is equipped with a second liquid level sensor. The first adjustment component and the second adjustment component are used to independently inject and discharge fluid into the first pontoon and the second pontoon respectively, and adjust the center of gravity and tilt angle of the cofferdam structure. The third adjustment component is used to inject or discharge fluid into the water bladder to dynamically adjust the internal pressure and deformation of the water bladder. A pumping assembly is used to evacuate the fluid inside the maintenance working chamber to create a dry maintenance environment; The cofferdam structure is equipped with a power unit and a dual-axis tilt sensor, and the connecting frame is equipped with a controller.

[0008] Preferably, the bottom edge of the cofferdam structure is an inclined open structure adapted to the slope of the target slope.

[0009] Preferably, the side surface of the water bladder is fixedly connected to the main wall of the cofferdam and the side wall of the cofferdam, respectively.

[0010] Preferably, the first regulating component includes a first pump body, an input end of the first pump body is fixedly connected to a first connecting pipe, an output end of the first pump body is fixedly connected to a second connecting pipe, a first solenoid valve is provided inside the first connecting pipe, a second solenoid valve is provided inside the second connecting pipe, the end of the second connecting pipe away from the first pump body is connected to a second float, and the end of the first connecting pipe away from the first pump body is connected to an external water body.

[0011] Preferably, the second regulating component includes a second pump body, with a third connecting pipe fixedly connected to the input end of the second pump body and a fourth connecting pipe fixedly connected to the output end of the second pump body. A third solenoid valve is installed inside the third connecting pipe, and a fourth solenoid valve is installed inside the fourth connecting pipe. The end of the fourth connecting pipe away from the second pump body is connected to the first float, and the end of the third connecting pipe away from the second pump body is connected to the external water body.

[0012] Preferably, the pumping assembly includes a pump, the input end of which is fixedly connected to a seventh connecting pipe, the output end of which is fixedly connected to an eighth connecting pipe, an eighth solenoid valve is installed inside the seventh connecting pipe, a seventh solenoid valve is installed inside the eighth connecting pipe, the end of the seventh connecting pipe away from the pump extends into the maintenance working chamber, and the end of the eighth connecting pipe away from the pump extends into the external water body.

[0013] Preferably, the third regulating component includes a third pump body, the input end of the third pump body is fixedly connected to a fifth connecting pipe, the output end of the third pump body is fixedly connected to a sixth connecting pipe, the fifth connecting pipe is provided with a fifth solenoid valve, the sixth connecting pipe is provided with a sixth solenoid valve, the end of the sixth connecting pipe away from the third pump body is fixedly connected to a water bladder, and the end of the fifth connecting pipe away from the third pump body is connected to an external water body.

[0014] Preferably, the controller is electrically connected to the dual-axis tilt sensor, the first adjustment component, the second adjustment component, the third adjustment component, and the pumping component. The controller has multiple pre-set collaborative control logic, which is used to acquire the tilt angle change data monitored by the dual-axis tilt sensor in real time during the process of the first and second adjustment components adjusting the tilt angle of the cofferdam structure and pressing it down to fit the slope surface. The controller calculates the gravity offset based on the received tilt angle change data and calculates the physical pressure on the water bladder. The controller synchronously controls the third adjustment component to perform adaptive adjustment of depressurization or pressurization inside the water bladder.

[0015] Preferably, a connecting plate is fixedly connected to the side surface of the cofferdam sidewall, and a rope buckle is fixedly connected to the upper surface of the connecting plate.

[0016] Preferably, a connecting rod is fixedly connected to the side surface of the cofferdam sidewall, and a handrail is fixedly connected to the side surface of the connecting frame.

[0017] This invention provides a slope-adaptive floating slope protection and maintenance device. It has the following beneficial effects: 1. This invention, by setting up a cofferdam structure, a water-stopping structure, a first adjustment component, a second adjustment component, a third adjustment component, and a power component, utilizes the first and second pontoons to provide stable buoyancy, presenting a rectangular cofferdam structure suspended on the water surface. With the drive of the power component, it can directly reach the designated damaged channel section for positioning without consuming earth and stone materials to build a solid cofferdam. This breaks the limitations of complex terrain such as the lack of construction access roads, eliminates the huge material waste and cumbersome procedures caused by traditional cofferdam construction and dismantling, supports continuous and efficient repair at multiple points, and at the same time reduces maintenance costs and speeds up the construction progress.

[0018] 2. After the floating slope protection maintenance device is positioned, the first and second adjustment components can be used to independently inject and drain water into the first and second pontoons. By utilizing the changes in the water volume inside the first and second pontoons as load, and working together with the water bladder, the center of gravity and tilt angle of the entire cofferdam structure can be adjusted in a non-contact manner. This allows the sidewall of the cofferdam to conform to and precisely fit the slope surface with different slope directions and gradients, thus improving the adaptability and versatility of the floating slope protection maintenance device to complex terrain.

[0019] 3. This invention constructs a dynamic data linkage system for the attitude adjustment and water bladder explosion-proof pressure maintenance of a floating slope protection maintenance device by setting up a controller, a dual-axis tilt sensor, and a third adjustment component. During the process of the first and second adjustment components injecting and discharging the first and second floats, adjusting the tilt angle of the cofferdam, and pressing them down onto the slope surface, the dual-axis tilt sensor monitors the tilt angle change data in real time and feeds it back to the controller. Based on the gravity offset during attitude adjustment and the current slope, the controller can automatically calculate the physical compression force on the water bladder in real time and simultaneously control the third adjustment component to adaptively adjust the pressure inside the water bladder. This allows the water bladder to actively resolve the rapid compression caused by local gravity concentration while the cofferdam dynamically presses the slope surface, avoiding the risk of the water bladder being locally crushed. This, in turn, ensures that the water bladder and the U-shaped waterstop maintain a dynamic sealing balance during the complex variable load slope application process, extending the service life of the waterstop components. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is a schematic diagram of the structure of the first adjustment component of the present invention; Figure 4 This is a schematic diagram of the structure of the second adjustment component of the present invention; Figure 5 This is a schematic diagram of the pumping assembly structure of the present invention.

[0021] Among them, 1. Cofferdam structure; 101. Cofferdam main wall; 102. Cofferdam side wall; 2. Water-stopping structure; 201. Water bladder; 202. U-shaped waterstop; 3. Controller; 4. First pontoon; 5. Second pontoon; 6. Connecting frame; 7. Power assembly; 8. First adjusting assembly; 801. First pump body; 802. First connecting pipe; 803. Second connecting pipe; 804. First solenoid valve; 805. Second solenoid valve; 9. Second adjusting assembly; 901. Second pump body; 902. Third connecting pipe; 903. Fourth connecting pipe; 9 04. Third solenoid valve; 905. Fourth solenoid valve; 10. Pumping assembly; 1001. Water pump; 1002. Seventh connecting pipe; 1003. Eighth connecting pipe; 1004. Seventh solenoid valve; 1005. Eighth solenoid valve; 11. Third regulating assembly; 1101. Third pump body; 1102. Fifth connecting pipe; 1103. Sixth connecting pipe; 1104. Fifth solenoid valve; 1105. Sixth solenoid valve; 12. Connecting plate; 13. Rope buckle; 14. Connecting rod; 15. Handrail; 16. Dual-axis tilt sensor. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 5 This invention provides a slope-adaptive floating slope protection repair device, comprising: a cofferdam structure 1, the cofferdam structure 1 including a main cofferdam wall 101 and a side cofferdam wall 102 fixedly connected to the side surface of the main cofferdam wall 101, the space enclosed by the main cofferdam wall 101 and the side cofferdam wall 102 forming a partially waterless repair working chamber for covering the outside of the damaged slope, the bottom edge of the cofferdam structure 1 being an inclined open structure adapted to the slope of the target slope, and a water-stopping structure 2, disposed below the cofferdam structure 1, for fitting against the slope surface to achieve a sealed isolation between the repair working chamber and the external water body, the water-stopping structure 2 including a water bladder 201 and a U-shaped water-stopping strip 202 disposed below the water bladder 201, the side surface of the water bladder 201 being fixedly connected to the main cofferdam wall 101 and the side cofferdam wall 102 respectively.

[0024] Specifically, by setting up a cofferdam structure 1, a water-stopping structure 2, and a power unit 7, and utilizing the stable buoyancy provided by the first pontoon 4 and the second pontoon 5, the rectangular cofferdam structure 1 is suspended on the water surface. Driven by the power unit 7, it can be directly transported to the designated damaged channel section for positioning without the need for constructing a physical cofferdam using earth and stone materials. This overcomes the limitations of complex terrains lacking access roads, eliminates the huge material waste and cumbersome procedures associated with traditional cofferdam construction and dismantling, supports efficient and continuous repair at multiple points, reduces maintenance costs, and accelerates construction progress.

[0025] During actual operation and positioning, when the cofferdam structure 1 is lowered and installed at the damaged section of the slope, the bottom water-stop structure 2 first contacts the slope surface. The water bladder 201, as a flexible transition layer, effectively compensates for the unevenness of the concrete slope surface. The U-shaped water-stop strip 202 below further enhances the physical friction and tightness of the fit with the slope surface. The main wall 101 and the side walls 102 of the cofferdam work together to stably create a safe, waterless maintenance working chamber under wave impact and external deep-water high-pressure environments.

[0026] Please see the appendix Figure 3 With appendix Figure 4 The first buoy 4 and the second buoy 5 are symmetrically arranged on both sides of the cofferdam structure 1 and connected to the cofferdam structure 1 through the connecting frame 6. The first adjusting component 8 and the second adjusting component 9 are used to independently inject and discharge fluid into the first buoy 4 and the second buoy 5 respectively, and adjust the center of gravity and tilt angle of the cofferdam structure 1. The first adjusting component 8 includes a first pump body 801. The input end of the first pump body 801 is fixedly connected to a first connecting pipe 802, and the output end of the first pump body 801 is fixedly connected to a second connecting pipe 803. The first connecting pipe 802 is provided with a first solenoid valve 804, and the second connecting pipe 803 is provided with a second solenoid valve 805. The end of the second connecting pipe 803 away from the first pump body 801 is connected to the second buoy 5, and the end of the first connecting pipe 802 away from the first pump body 801 is connected to the external water body.

[0027] Specifically, after the floating slope protection maintenance device is positioned, the first adjusting component 8 and the second adjusting component 9 can independently perform water injection and drainage operations on the first pontoon 4 and the second pontoon 5, respectively. By utilizing the changes in the water volume inside the first pontoon 4 and the second pontoon 5 as dynamic loading, and working together with the water bladder 201 at the bottom, the center of gravity and tilt angle of the entire cofferdam structure 1 can be precisely adjusted without contact.

[0028] During use, when the device needs to be lowered to increase the ballast force on the side of the second pontoon 5, the operator controls the first pump body 801 to start, and simultaneously opens the first solenoid valve 804 and the second solenoid valve 805. Water outside the floating slope protection device is pumped in through the first connecting pipe 802, and then continuously injected into the second pontoon 5 through the second connecting pipe 803. The increased water volume inside the second pontoon 5 allows the cofferdam sidewall 102 to conform to and precisely fit the slope surface with different slope directions and gradients under the action of the water bladder 201, improving the adaptability and versatility of the floating slope protection device to complex terrain.

[0029] The second regulating component 9 includes a second pump body 901. The input end of the second pump body 901 is fixedly connected to a third connecting pipe 902, and the output end of the second pump body 901 is fixedly connected to a fourth connecting pipe 903. A third solenoid valve 904 is installed inside the third connecting pipe 902, and a fourth solenoid valve 905 is installed inside the fourth connecting pipe 903. The end of the fourth connecting pipe 903 away from the second pump body 901 is connected to the first float 4, and the end of the third connecting pipe 902 away from the second pump body 901 is connected to the external water body.

[0030] Specifically, the second adjusting component 9 and the first adjusting component 8 are mirror-symmetrical in structural layout, and the second adjusting component 9 and the first adjusting component 8 can adjust the operating angle of the cofferdam structure 1. When it is necessary to adjust the tilt angle in the opposite direction or to accelerate the downward pressure of the first pontoon 4, the second pump body 901 is activated, and the third solenoid valve 904 and the fourth solenoid valve 905 are opened simultaneously. External fluid is drawn in through the third connecting pipe 902 and then injected into the first pontoon 4 through the fourth connecting pipe 903.

[0031] If it is necessary to surface and evacuate to the next location for maintenance, simply control the first pump body 801 and the second pump body 901 to pump water in opposite directions, discharging the loaded water inside the first float 4 and the second float 5 to the outer water body through their respective connecting pipes. By precisely controlling the opening and closing combination and injection and discharge duration of the third solenoid valve 904 and the fourth solenoid valve 905, as well as the first solenoid valve 804 and the second solenoid valve 805, a precise differential distribution of buoyancy and gravity on both sides can be achieved. This not only makes the sinking and positioning process rapid, but also transforms the strong rigid impact force into gentle gravity pressure upon contact with the slope protection surface, laying a solid foundation for the subsequent sealing structure.

[0032] The third regulating component 11 is used to inject or discharge fluid into the water bladder 201 and dynamically regulate the internal pressure and deformation of the water bladder 201. The third regulating component 11 includes a third pump body 1101. The input end of the third pump body 1101 is fixedly connected to a fifth connecting pipe 1102, and the output end of the third pump body 1101 is fixedly connected to a sixth connecting pipe 1103. A fifth solenoid valve 1104 is installed inside the fifth connecting pipe 1102, and a sixth solenoid valve 1105 is installed inside the sixth connecting pipe 1103. The end of the sixth connecting pipe 1103 away from the third pump body 1101 is fixedly connected to the water bladder 201, and the end of the fifth connecting pipe 1102 away from the third pump body 1101 is connected to an external water body.

[0033] Specifically, when the cofferdam structure 1 is in contact with the slope protection surface, the third pump body 1101 starts, and the fifth solenoid valve 1104 and the sixth solenoid valve 1105 open. The third pump body 1101 draws fluid through the fifth connecting pipe 1102, and the fluid enters the water bladder 201 through the sixth connecting pipe 1103, pressurizing the water bladder 201. The fluid causes the water bladder 201 to expand, filling the gaps on the slope protection surface. The third pump body 1101 then reverses direction, drawing fluid from the water bladder 201. The fluid in the water bladder 201 is discharged outwards through the sixth connecting pipe 1103 and the fifth connecting pipe 1102, thus depressurizing the water bladder 201. This process of filling and discharging fluid dynamically adjusts the deformation of the water bladder 201, increasing the fit between the water-stopping structure 2 and the slope protection surface, and ensuring the sealing of the maintenance working chamber.

[0034] Please see the appendix Figure 1 With appendix Figure 5 The pumping assembly 10 is used to evacuate the fluid inside the maintenance working chamber to create a dry maintenance environment. The pumping assembly 10 includes a pumping pump 1001. The input end of the pumping pump 1001 is fixedly connected to a seventh connecting pipe 1002, and the output end of the pumping pump 1001 is fixedly connected to an eighth connecting pipe 1003. An eighth solenoid valve 1005 is installed inside the seventh connecting pipe 1002, and a seventh solenoid valve 1004 is installed inside the eighth connecting pipe 1003. The end of the seventh connecting pipe 1002 away from the pumping pump 1001 extends into the maintenance working chamber, and the end of the eighth connecting pipe 1003 away from the pumping pump 1001 extends to an external water body.

[0035] Specifically, after the cofferdam structure 1 forms a maintenance working chamber with the target slope surface under the combined sealing action of the gravity pressure of the first pontoon 4 and the second pontoon 5, and the combined sealing action of the water bladder 201 and the U-shaped waterstop 202, the water pump 1001 starts working. The seventh connecting pipe 1002 is placed inside the maintenance working chamber, and the eighth solenoid valve 1005 and the seventh solenoid valve 1004 are opened. Water accumulated in the closed area surrounded by the main wall 101 and the side wall 102 of the cofferdam is quickly pumped out through the seventh connecting pipe 1002 and the eighth connecting pipe 1003. The water in the maintenance working chamber is directly discharged into the external river channel through the eighth connecting pipe 1003. As the internal water level continues to drop until it is completely emptied, the upward buoyancy of the water inside disappears completely, pressing the cofferdam structure 1 tightly onto the slope surface. The sealing effect becomes increasingly tight and solidified due to the huge internal and external pressure difference, creating a dry construction pit with clear visibility and no water flow disturbance, ensuring that the subsequent concrete repair process can be implemented with high quality and quantity.

[0036] A power unit 7 and a dual-axis tilt sensor 16 are installed on the cofferdam structure 1. A controller 3 is installed on the connecting frame 6. The controller 3 is electrically connected to the dual-axis tilt sensor 16, the first adjustment component 8, the second adjustment component 9, the third adjustment component 11, and the pumping component 10. The controller 3 has multiple pre-set collaborative control logic, which is used to acquire the tilt angle change data monitored by the dual-axis tilt sensor 16 in real time during the process of the first adjustment component 8 and the second adjustment component 9 adjusting the tilt angle of the cofferdam structure 1 and pressing it down to fit the slope surface. The controller 3 calculates the gravity offset based on the received tilt angle change data and calculates the physical extrusion force on the water bladder 201. The controller 3 synchronously controls the third adjustment component 11 to perform adaptive adjustment of depressurization or pressurization inside the water bladder 201. A fluid pressure sensor is installed inside the water bladder 201, a first liquid level sensor is installed inside the first float 4, and a second liquid level sensor is installed inside the second float 5.

[0037] Specifically, the power component 7 is existing technology and adopts conventional water propulsion equipment. The specific internal structure and driving principle of the power component 7 are well known to those skilled in the art, and will not be described in detail here.

[0038] This invention constructs a dynamic data linkage system for the attitude adjustment of the floating slope protection maintenance device and the explosion-proof pressure maintenance of the water bladder 201 based on multi-source sensor data fusion by setting a controller 3 and integrating a dual-axis tilt sensor 16, a fluid pressure sensor inside the water bladder 201, a first liquid level sensor inside the first float 4, and a second liquid level sensor inside the second float 5. During the process of fluid injection and discharge from the first float 4 and the second float 5 by the first adjustment component 8 and the second adjustment component 9, which causes the cofferdam structure 1 to press down and adhere to the slope surface, the dynamic data linkage system for the attitude adjustment of the floating slope protection maintenance device and the explosion-proof pressure maintenance of the water bladder 201 executes the following control logic and mathematical model calculations: First, controller 3 collects sensor data in real time. The first and second liquid level sensors monitor and transmit the liquid level heights in the first float 4 and the second float 5 to controller 3, respectively. Controller 3 calculates the current ballast water mass m1 in the first float 4 and the current ballast water mass m2 in the second float 5 based on the liquid level heights. Combining this with the unloaded self-weight M0 of the floating slope protection maintenance device, controller 3 calculates the real-time total mass M of the floating slope protection maintenance device using the following formula: M = M0 + m1 + m2; Meanwhile, the fixedly installed dual-axis tilt sensor 16 monitors the current tilt angle θ of the cofferdam structure 1 as it tilts with the slope protection surface in real time at high frequency, and instantly feeds back the current tilt angle θ to the controller 3.

[0039] Controller 3 calculates the normal physical compressive force on water bladder 201 using a built-in formula. At the instant the cofferdam structure 1 presses against the slope, controller 3 calculates the normal compressive force F borne by water bladder 201 based on the gravity offset and slope using a force formula. N The calculation formula is: F N =(M·gF f )·cos(θ); Where g is the acceleration due to gravity, F f The remaining buoyancy force F is the force exerted by the submersible slope protection device at the current water depth. f The value is the product of the fixed drainage volume of the pre-set cofferdam structure 1 and the external water density, which is a constant (M·gF). f ) represents the effective downward pressure of the floating slope protection maintenance device, and cos(θ) represents the gravity component coefficient along the normal direction of the slope surface. The controller 3 calculates the theoretical additional pressure ΔP caused by gravity downward pressure based on the effective contact area S between the water bladder 201 and the slope surface. The effective contact area S is a preset structural constant input to the controller 3. The calculation formula is: ΔP=F N / S; Finally, controller 3 performs threshold comparison and adaptive adjustment closed-loop control. Controller 3 reads the actual initial pressure P fed back by the fluid pressure sensor inside the water bladder 201 in real time. real And calculate the predicted total pressure P after bonding. total The calculation formula is: P total =P real +ΔP; The controller 3 has a preset upper limit threshold P for the safe burst pressure of the water bladder 201. max The minimum pressure threshold P required to ensure a seal min .

[0040] Explosion-proof pressure relief logic: When encountering a gentle slope or concentrated gravity, the calculated predicted total pressure P after bonding is reduced. total ≥Safe burst pressure upper limit threshold P of water bladder 201 max At this time, controller 3 determines that there is a risk of explosion. Controller 3 then controls the third regulating component 11 to open the fifth solenoid valve 1104, the sixth solenoid valve 1105, and the third pump body 1101, drawing out some fluid from inside the water bladder 201 through the fifth connecting pipe 1102 and the sixth connecting pipe 1103. This continues until the actual initial pressure P fed back by the fluid pressure sensor is reached. real The pressure is reduced to a safe range, thereby actively mitigating the rapid compression and preventing the water bladder 201 from being locally crushed.

[0041] Pressure-compensating sealing logic: When encountering a steep slope that causes a sharp reduction in the normal component of gravity, or when the slope surface is uneven and the clamping force is insufficient, i.e., the detected actual initial pressure P... real ≤Minimum pressure threshold P required to ensure a seal min At this time, the controller 3 controls the third adjustment component 11 to reverse the action, inject water into the water bladder 201 to increase the pressure, and force the water bladder 201 to expand outward to fill the gap.

[0042] Based on the adaptive linkage feedback mechanism of formula calculation and multi-channel sensor closed loop, the water bladder 201 and U-shaped waterstop 202 maintain dynamic sealing balance during the slope application process under variable load, which extends the service life of the waterstop components and ensures the sealing safety of the maintenance working chamber.

[0043] A connecting plate 12 is fixedly connected to the side surface of the cofferdam sidewall 102, a rope buckle 13 is fixedly connected to the upper surface of the connecting plate 12, a connecting rod 14 is fixedly connected to the side surface of the cofferdam sidewall 102, and a handrail 15 is fixedly connected to the side surface of the connecting frame 6.

[0044] Specifically, the cofferdam sidewall 102 is a T-shaped plate, and the rope buckle 13 can be used to tie the safety ropes of construction personnel, and can also be used to fix the slope-adaptive floating slope protection maintenance device to one side of the river. The horizontally set connecting rod 14 increases the stability of the structural connection and improves the ability to resist water wave impact. The handrail 15 set on the side surface of the connecting frame 6 provides a very safe gripping point for construction and maintenance personnel to enter and exit the cofferdam structure 1, making the local dry ground maintenance process smoother, safer and more efficient from equipment positioning to personnel operation.

[0045] Working Principle: Under normal operating conditions, the first pontoon 4 and the second pontoon 5 are empty or have little water, providing sufficient buoyancy for the entire submerged slope protection repair device, allowing the rectangular cofferdam structure 1 to float on the water surface. When repairs are needed at damaged points on the slope, the operator activates the power unit 7, driving the submerged slope protection repair device to navigate on the water and move directly to the designated section of the channel to be repaired. This eliminates the need for traditional dam construction relying on access roads and large earthmoving machinery, achieving rapid mobility on water. Once the floating slope protection repair device reaches the damaged area, the operator sends a sinking command to the first adjustment component 8 and the second adjustment component 9 through the controller 3, opening the first solenoid valve 804, the second solenoid valve 805, the third solenoid valve 904, and the fourth solenoid valve 905. The first pump body 801 and the second pump body 901 are activated. Water outside the floating slope protection repair device enters the second float 5 through the first connecting pipe 802 and the second connecting pipe 803, and enters the first float 4 through the third connecting pipe 902 and the third solenoid valve 904, thereby causing the floating slope protection repair device to sink into the water.

[0046] To adapt to non-standard slope surfaces, the controller 3 differentiates the water injection volume of the first adjustment component 8 and the second adjustment component 9, thereby changing the load-bearing weight ratio of the first pontoon 4 and the second pontoon 5. By utilizing the shift in the center of gravity, the tilt angle of the cofferdam structure 1 is precisely adjusted non-contactly, so that the sidewall 102 of the cofferdam and the bottom water-stopping structure 2 gradually conform to and become parallel to the target slope surface.

[0047] As the cofferdam structure 1 presses down onto the slope protection surface and gradually fits in, the dual-axis tilt sensor 16 monitors the current tilt angle change data in real time at high frequency and feeds the data back to the controller 3. Based on the water volume in the first buoy 4 and the second buoy 5 at this time and the current slope data, the controller 3 calculates in real time the physical pressing force generated by the cofferdam structure 1 on the bottom water bladder 201.

[0048] When encountering a gentle slope or excessive gravity concentration leading to excessive compressive pressure: Controller 3 determines there is a risk of water bladder 201 bursting, and immediately controls the third regulating component 11 to open the fifth solenoid valve 1104, the sixth solenoid valve 1105, and the third pump body 1101. Through the fifth connecting pipe 1102 and the sixth connecting pipe 1103, some fluid inside the water bladder 201 is extracted to release pressure. This actively resolves rapid compression and prevents the water bladder 201 from being locally burst. When encountering a steep slope resulting in insufficient compressive force: Controller 3 controls the third regulating component 11 to actively inject water into the water bladder 201 by opening the fifth solenoid valve 1104 and the sixth solenoid valve 1105, under the action of the fifth connecting pipe 1102 and the sixth connecting pipe 1103, forcing the water bladder 201 to expand and fill the gaps.

Claims

1. A slope-adaptive floating slope protection and maintenance device, characterized in that, include: The cofferdam structure (1) includes a main wall (101) and a side wall (102) fixedly connected to the side surface of the main wall (101). The space enclosed by the main wall (101) and the side wall (102) forms a local waterless repair work chamber for covering the outside of the damaged slope. A water-stopping structure (2) is set below the cofferdam structure (1) to fit the slope protection surface to achieve the sealing and isolation of the maintenance working chamber from the external water body. The water-stopping structure (2) includes a water bladder (201) and a U-shaped water-stopping strip (202) set below the water bladder (201). A fluid pressure sensor is set inside the water bladder (201). The first pontoon (4) and the second pontoon (5) are symmetrically arranged on both sides of the cofferdam structure (1) and connected to the cofferdam structure (1) through the connecting frame (6). The first pontoon (4) is equipped with a first liquid level sensor, and the second pontoon (5) is equipped with a second liquid level sensor. The first adjustment component (8) and the second adjustment component (9) are used to independently inject and discharge fluid into the first pontoon (4) and the second pontoon (5) respectively, and adjust the center of gravity and tilt angle of the cofferdam structure (1); The third adjustment component (11) is used to inject or discharge fluid into the water bladder (201) to dynamically adjust the internal pressure and deformation of the water bladder (201); A pumping assembly (10) is used to pump out the fluid inside the maintenance working chamber to create a dry maintenance environment; The cofferdam structure (1) is equipped with a power unit (7) and a dual-axis tilt sensor (16), and the connecting frame (6) is equipped with a controller (3).

2. The slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, The bottom edge of the cofferdam structure (1) is an inclined open structure adapted to the slope of the target slope.

3. The slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, The side surface of the water bladder (201) is fixedly connected to the main wall (101) and the side wall (102) of the cofferdam, respectively.

4. The slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, The first regulating component (8) includes a first pump body (801), the input end of the first pump body (801) is fixedly connected to a first connecting pipe (802), the output end of the first pump body (801) is fixedly connected to a second connecting pipe (803), the first connecting pipe (802) is provided with a first solenoid valve (804), the second connecting pipe (803) is provided with a second solenoid valve (805), the end of the second connecting pipe (803) away from the first pump body (801) is connected to a second float (5), and the end of the first connecting pipe (802) away from the first pump body (801) is connected to an external water body.

5. The slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, The second regulating component (9) includes a second pump body (901), the input end of the second pump body (901) is fixedly connected to a third connecting pipe (902), the output end of the second pump body (901) is fixedly connected to a fourth connecting pipe (903), a third solenoid valve (904) is provided inside the third connecting pipe (902), a fourth solenoid valve (905) is provided inside the fourth connecting pipe (903), the end of the fourth connecting pipe (903) away from the second pump body (901) is connected to the first float (4), and the end of the third connecting pipe (902) away from the second pump body (901) is connected to the external water body.

6. The slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, The pumping assembly (10) includes a pump (1001), the input end of which is fixedly connected to a seventh connecting pipe (1002), and the output end of which is fixedly connected to an eighth connecting pipe (1003). An eighth solenoid valve (1005) is installed inside the seventh connecting pipe (1002), and a seventh solenoid valve (1004) is installed inside the eighth connecting pipe (1003). The end of the seventh connecting pipe (1002) away from the pump (1001) extends into the maintenance working chamber, and the end of the eighth connecting pipe (1003) away from the pump (1001) extends into the external water body.

7. A slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, The third regulating component (11) includes a third pump body (1101), the input end of which is fixedly connected to a fifth connecting pipe (1102), the output end of which is fixedly connected to a sixth connecting pipe (1103), a fifth solenoid valve (1104) is provided inside the fifth connecting pipe (1102), a sixth solenoid valve (1105) is provided inside the sixth connecting pipe (1103), the end of the sixth connecting pipe (1103) away from the third pump body (1101) is fixedly connected to a water bladder (201), and the end of the fifth connecting pipe (1102) away from the third pump body (1101) is connected to an external water body.

8. The slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, The controller (3) is electrically connected to the dual-axis tilt sensor (16), the first adjustment component (8), the second adjustment component (9), the third adjustment component (11), and the pumping component (10). The controller (3) has multiple cooperative control logic preset in it. It is used to acquire the tilt change data monitored by the dual-axis tilt sensor (16) in real time during the process of the first adjustment component (8) and the second adjustment component (9) adjusting the tilt angle of the cofferdam structure (1) and pressing it down to fit the slope surface. The controller (3) calculates the gravity offset based on the received tilt change data and calculates the physical pressure on the water bag (201). The controller (3) synchronously controls the third adjustment component (11) to perform adaptive adjustment of depressurization or pressurization inside the water bag (201).

9. A slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, A connecting plate (12) is fixedly connected to the side surface of the cofferdam sidewall (102), and a rope buckle (13) is fixedly connected to the upper surface of the connecting plate (12).

10. A slope-adaptive floating slope protection and maintenance device according to claim 1, characterized in that, A connecting rod (14) is fixedly connected to the side surface of the cofferdam sidewall (102), and a handrail (15) is fixedly connected to the side surface of the connecting frame (6).

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