An array-type river breach sealing structure

Abstract

The present invention discloses an array-type river breach sealing structure, comprising an array of foundation piles fixed to the bottom of the river at both ends of the breach in the embankment, and a sealing wall formed above the foundation pile array. The structure is characterized in that a sealing pipe is clamped between the foundation pile arrays at both ends, and the sealing pipes are laid in multiple layers from bottom to top and stacked to form the sealing wall. The present invention has the advantages of good sealing effect, good sealing structure stability, easy structural construction, high sealing construction efficiency, and good stability and reliability.

Description

Technical Field

[0001] The present invention relates to a water conservancy engineering technology, in particular to an array-type river breach blocking structure. Background Art

[0002] River breaches are a common natural disaster in my country. During a levee breach, lateral widening takes longer than vertical incision, a key factor influencing the extent and severity of flooding in the floodplain. Furthermore, the downstream propagation of the breach wave poses a significant threat to local life and property. Furthermore, the flow velocity at the breach site is relatively high compared to the river channel, making traditional repair methods difficult to establish in areas with high flow rates. This results in poor repair effectiveness, and the breach will further widen during this period. Ultimately, when the water level difference on both sides of the breach is small, the breach becomes relatively stable.

[0003] The existing solution to solve the problem of river breaches is usually to place blocking materials. For some large-width breaches with high flow rates, some methods such as sinking ships and cars are used for blocking, but it is obvious that this method is costly, wasteful and the solution effect is not satisfactory. For more breaches, the blocking materials are gabions. Although gabions are cheap, their size is usually much smaller than the breach size. They need to be arranged into a wall to play a good blocking role. However, it is impossible to arrange the gabions into a wall in advance. They are all placed individually. Therefore, they are easily washed away by the high-speed water flow after being placed into the breach, resulting in poor blocking effect.

[0004] Patent CN107447728B, previously applied for by the applicant, disclosed a method for emergency repair of river breaches based on an array of rocket-drilled anchors. The specific steps are as follows: (1) Launching a rocket anchor, the anchor cable is connected to a fixed pile on the shore to form a "root point" at the breach; (2) Sliding a steel mesh gabion group through the rocket anchor cable to quickly form the "mainstay" of the breach repair; (3) Using the anchor point array, sliding the steel mesh gabions, connecting them into groups, forming the "expanding body" of the breach repair. This invention uses laser guidance to accurately deploy the array, and at the same time uses induction to trigger the expansion anchor, "first taking root at a single point, then expanding into a group", quickly forming a preset anchor array at the breach, which can improve the fixing effect of the gabions. However, although this method can deploy gabions in strings along the anchor cables, the gabions are still deployed perpendicular to the embankment. During deployment, they cannot immediately form an effective seal across the entire width of the breach. After deployment, the entire sealing structure remains separate entities across the width of the breach, failing to achieve overall sealing strength across the width of the breach. Therefore, whether during the gabion deployment process or after the gabions have been deployed to form a sealing structure, the gabions are still susceptible to being disrupted or washed away by high-speed water flow, resulting in poor sealing effectiveness. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide an array-type river breach sealing structure with better and more stable sealing effect, which is conducive to structure formation and improves construction efficiency.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An array-type river breach sealing structure includes a pile array fixed to the bottom of the river channel at both ends of the breach of the embankment, and also includes a sealing wall formed above the pile array. It is characterized in that a sealing pipe is clamped between the pile arrays at both ends, and the sealing pipes are laid in multiple layers from bottom to top and stacked to form the sealing wall.

[0008] In this way, a blocking pipe with a length greater than the width of the breach is used to form a blocking wall. The bottom of the blocking wall is fixed by the pile array, and the outer side of the blocking wall can directly contact the side of the embankment on both sides of the breach. Even if the wall is washed away, the blocking pipes can still be intercepted by the embankment under the impact of the water flow and stick to the side of the embankment, without reducing the flow blocking effect. Therefore, the reliability and stability of the blocking effect are greatly improved. The design of the pile array not only facilitates the positioning of the blocking pipes and increases the width of the blocking structure, but also allows part of the impact force of the river breach to be transferred downward to the riverbed, reducing the pressure on the embankment and better preventing the expansion of the breach.

[0009] Furthermore, both ends of the inner cavity of the blocking pipe are connected.

[0010] In this way, the plugging pipe is a hollow structure, which is lighter than the gabion, reducing the difficulty of placement and improving the plugging efficiency. In addition, the plugging pipe is arranged in the direction of the river, so the downstream river water can pass through the inside of the pipe, greatly reducing the impact of the downstream river water on the pipe and improving the stability of the plugging structure.

[0011] Furthermore, the blocking pipe is a round pipe.

[0012] In this way, the river water rushing out from the direction of the breach will impact the pipeline horizontally. Since the cross-section of the pipeline itself is circular, the impact force of the river water on the pipeline can be slowed down to the maximum length, thereby improving the stability of the plugging. In particular, it greatly improves the stability of the plugged pipeline during the deployment process and the initial stage of deployment, avoiding the defect that the plugging device is very easily washed away by the river water during the deployment process.

[0013] Furthermore, the laying width of each layer of blocked pipes in a direction perpendicular to the embankment gradually decreases from bottom to top.

[0014] In this way, the overall stability of the blocking wall can be better improved.

[0015] Furthermore, the distance between each row of piles in the pile array from the shore side to the far shore side is the diameter of the blocked pipe, and the diameter of the upper end of the pile is smaller than the diameter of the blocked pipe.

[0016] In this way, the bottom row or rows of blocking pipes can be clamped between the rows of foundation piles until the upper surface of the blocking pipes exceeds the upper surface of the foundation piles. The next row of blocking pipes above can then be conveniently clamped into the intervals of the lower blocking pipes and stacked upward in sequence to form a blocking wall, thereby better improving stability.

[0017] Furthermore, the pile arrays at both ends of the breach are arranged symmetrically on the left and right, and the bank-side sides of the pile arrays are connected to the embankment, while the far-bank sides are in a stepped shape with a larger width closer to the breach.

[0018] In this way, even during the sealing process, the long-term impact of the breach and the gradual expansion of the river water can still ensure the stability of the overall structure.

[0019] Furthermore, the bank-facing side of the pile array is separated from the embankment by a diameter of the blocked pipe.

[0020] In this way, it is convenient to install the first blocking steel pipe along the lower inner side of the embankment and clamp it between the foundation pile array and the embankment, and based on this, gradually complete the laying of the blocking wall.

[0021] Furthermore, the length of the plugging pipe at the far shore side is greater than the breach width but less than the length of the plugging pipe at the near shore side.

[0022] In this way, the weight of the blocking wall can be better reduced, the lateral pressure on the embankment can be reduced, and it can also cooperate well with the stepped foundation pile array.

[0023] Furthermore, the foundation pile is formed by inserting the lower end of a drill anchor with a pointed lower end into the bottom of the riverbed.

[0024] This structure is simple and offers reliable fixation. During implementation, a catapult can be used to project the piles from the embankment and drill into the riverbed. Alternatively, the piles can be constructed using the same structures described in the applicant's previously filed patents CN107447728B - A River Breach Emergency Blocking Method Based on an Array of Rocket Drilling Anchors - and CN107587507A - Rocket Drilling Anchors. Other anchoring devices that are convenient for fixing to the riverbed can also be used.

[0025] Furthermore, the lower end of the ground anchor has a triangular needle-shaped tip, and the surface of the anchor rod has three spirally arranged edges. In this way, it can better drill into the bottom of the riverbed and improve the blocking efficiency.

[0026] Furthermore, in the pile array, at least the tail of each pile located at the upstream end is fixedly connected to an anchor cable, the upper end of the anchor cable is fixed to the embankment, and the end of each oblique vertical row of blocking pipes is clamped between the corresponding adjacent anchor cables (during implementation, the upstream and downstream ends can have this structure at the same time).

[0027] This makes it easier to place the blocking pipes into the riverbed in a more orderly manner. At the same time, the anchor cable's assistance in placing the blocking pipes facilitates control and adjustment of the order in which each blocking pipe is laid. This allows the laying of the first blocking pipe at the bottom layer, which is in contact with the side of the embankment, to be completed first. Then, while completing the laying of the vertical row of steel pipes in contact with the side of the embankment, the laying of each horizontal row of steel pipes can be gradually completed toward the far bank. This not only facilitates the rapid sealing of the breach and reduces the water flow rate as quickly as possible, but also ensures that the cross-section of the blocking wall remains in a triangular arrangement throughout the process of laying the blocking pipes, greatly improving the stability and reliability of the laying process.

[0028] As an option, the blocking pipe is an integral single-tube pipe, and the tail of each pile at the upstream and downstream ends of the pile array is fixedly connected with an anchor cable. The upstream and downstream ends of the blocking pipe are also fixed with rings, which can be slidably mounted on the corresponding anchor cables.

[0029] This structure is more suitable for implementation in cases where the breach width is small (less than 10 meters). During implementation, the lower end of the plugging pipe can be directly transferred to the downstream end of the breach on the embankment. The rings at the upper and lower ends of the plugging pipe are then threaded onto the corresponding anchor cables, and the plugging pipe is deployed. This allows for stable control of the sequence and process of plugging pipe deployment, greatly improving the efficiency and reliability of breach sealing construction.

[0030] Therefore, based on the content disclosed so far, the present application also essentially discloses a river breach sealing method that is more suitable for small breaches (breach width is less than 10 meters), including the following steps: a. First, complete the fixed setting of the foundation pile array at the bottom of the river channel at both ends of the breach (the aforementioned structure and fixing method can be used), and the tail of each foundation pile at the upstream and downstream ends of the foundation pile array are respectively fixedly connected to an anchor cable to the embankment; b. Obtain a sealing pipe with a length greater than the river breach, fix a through-ring at both ends of the sealing pipe, and directly transfer the lower end of the sealing pipe to the downstream end of the breach on the embankment; c. Pass the through-rings at the upper and lower ends of the sealing pipe onto the corresponding anchor cables, and then place the sealing pipe into the river channel along the anchor cables, and place a vertical row of sealing pipes between every two adjacent anchor cables until the laying of the sealing wall is completed to block the breach. Furthermore, when laying the sealing pipes, the first pipe at the bottom layer, adjacent to the bank, is laid first. The vertical rows of pipes, adjacent to the bank, are then laid upwards, while the horizontal rows of pipes are gradually laid toward the far bank. This maintains a triangular vertical cross-section throughout the sealing wall, further enhancing the stability of the installation process. This allows for convenient, quick, and efficient sealing of small breaches, ensuring the reliability and stability of the sealing process.

[0031] As another option, the blocking pipe is an integral single-tube pipe, and both ends of the blocking pipe are fixedly connected with a pull rope, and the upper end of the pull rope is fixed to the embankment.

[0032] This structure is particularly suitable for relatively large breaches (10-20 meters). In these cases, the large breach and the long length of the pipe make it difficult to directly transfer the sealing pipe from the embankment above the breach to the downstream end. Therefore, the sealing pipe can be lowered halfway into the river channel from the upstream end of the breach and submerged below the water surface, kept suspended by a rope. The upper half of the rope at the downstream end of the sealing pipe is then delivered to the downstream end of the breach using a drone. The sealing pipe is then gradually controlled through the breach and lowered into the river channel. This method allows for stable control of the sequence and process of pipe deployment, greatly improving the efficiency and reliability of breach sealing operations.

[0033] Therefore, based on the content disclosed so far, this application substantially discloses a method for sealing a river breach that is more suitable for medium-sized breaches (breach width of 10-15 meters), including the following steps: a. First, complete the fixed setting of the foundation pile array at the bottom of the river at both ends of the breach (the aforementioned structure and fixing method can be used), and the tail of each foundation pile at the upstream and downstream ends of the foundation pile array is respectively fixedly connected to an anchor cable on the embankment; b. Obtain a sealing pipe with a length greater than the river breach, and fix a pull rope at each end of the sealing pipe. The length of the pull rope at the upstream end of the sealing pipe is greater than the depth of the embankment, and the sealing The length of the pull rope at the downstream end of the pipeline is equal to the sum of the depth of the embankment and the length of the breach; c. When placing the blocking pipe, the blocking pipe is directly lowered into the river channel along the direction of the water flow at the upstream end of the breach and submerged below the water surface, and the rope is used to keep it in a suspended state; d. Use an unmanned aerial vehicle or an electrically controlled boat to send the upper half of the pull rope at the downstream end of the blocking pipe to the downstream end of the breach, and then control the blocking pipe to pass through the breach by pulling the ropes at both ends of the blocking pipe, and sink it into the river channel in the manner of placing a vertical row of blocking pipes between each two adjacent anchor cables until the laying of the blocking wall is completed and the breach is blocked. Furthermore, when laying the blocking pipe, first complete the laying of the first blocking pipe at the bottom layer that is adjacent to the side of the embankment, and then complete the laying of the vertical row of steel pipes adjacent to the side of the embankment upwards while gradually completing the laying of each horizontal row of steel pipes towards the far bank, so that the vertical cross-section of the blocking wall is always arranged in a similar triangular shape during the laying process, thereby better improving the stability of the laying process. Therefore, it is possible to conveniently, quickly and efficiently complete the sealing of medium-sized river breaches, ensuring the reliability and stability of the sealing process.

[0034] As another option, the blocking pipe is a retractable multi-section sleeve-type pipe, and its length after expansion is greater than the breach width.

[0035] This makes it easy to drop the plugging pipe into the river channel in a contracted state at the upstream end of the breach, then expand it to its extended state for installation. This structure is particularly suitable for large breaches (over 15 meters), where the required length of plugging pipe makes it difficult to transport, deploy, and control. Therefore, a telescopic sleeve is used, allowing the pipe to be dropped into the river channel in a contracted state at the upstream end of the breach, then expanded and extended for installation and sealing. This significantly improves plugging efficiency.

[0036] Furthermore, a ring is fixed at the starting end of the first section of the blocked pipe, and the ring can be slidably mounted on the corresponding anchor cable.

[0037] In this way, when the plugging pipe is placed at the upstream end during implementation, it is convenient to rely on the cooperation of the ring and the anchor cable to complete the fixation of the head end of the plugging pipe, making it easier to deploy it; it is convenient to achieve stable control of the sequence and process of placing the plugging pipe, greatly improving the efficiency and reliability of the breach plugging construction.

[0038] Furthermore, a connecting spring piece is provided on the outer surface of the last section of the sealing pipe. The connecting spring piece is in the shape of a long strip along the length direction of the pipe. One end of the connecting spring piece is fixedly connected to the sealing pipe, and the other end is provided with a barb. When not subject to force, the connecting spring piece extends obliquely outward for a distance. The distance is greater than the radius difference between the last section of the pipe and the first section of the pipe.

[0039] This arrangement of the connecting spring creates friction between it and the penultimate pipe section, allowing the final pipe section to be pulled out last during the plugging process. Simultaneously, the connecting spring automatically ejects after the final pipe section is pulled out, allowing the ejected connecting spring to connect with the connecting springs at the ends of adjacent plugging pipes. This avoids the problem of loosening and deflection, which can occur due to the sleeve-type plugging pipe design and the reduced radius at the end. The connecting spring securely connects the ends of the plugging pipes, further improving the stability and reliability of the entire plugging wall.

[0040] Furthermore, when the connecting spring piece is in a stress-free state after being ejected, the barb has an outwardly twisted angle. In this way, it is more convenient to achieve the connection and fastening between adjacent blocked pipes by relying on the barb of the ejected connecting spring piece.

[0041] Furthermore, the upstream end of the connecting spring is fixed to the last section of the blocking pipe, which makes it easy to collect and recycle the pulled-out blocking pipe.

[0042] Furthermore, the connecting spring piece is directly cut and formed on the pipe, which is more convenient to manufacture and has better structural integrity.

[0043] Furthermore, a water-blocking guide plate is provided in the inner cavity of the last section of the blocked pipe. The water-blocking guide plates are multiple and evenly distributed along the circumference and are spirally arranged in the pipe.

[0044] This allows the sealing pipe to be deployed upstream of the breach, where the water-blocking guide plate withstands the impact of the water flow, driving the sleeve-type pipe's sealing pipe to gradually extend and expand. The spiral design of the water-blocking guide plate allows each sleeve section to be pulled in the direction of rotation, making it easier to deploy. Furthermore, after the final section of the pipe is deployed, the spring-loaded connecting pieces can be better connected and fixed together.

[0045] Therefore, based on the content disclosed so far, this application also substantially discloses a water flow impact self-expanding river breach sealing method that is more suitable for large breaches (breach width greater than 15 meters), including the following steps: a) first complete the fixed installation of the foundation pile array at the bottom of the river at both ends of the breach (the aforementioned structure and fixing method can be used), and the tail of each foundation pile at the upstream end of the foundation pile array is respectively fixedly connected to the embankment with an anchor cable; b) obtain a retractable multi-section sleeve pipe structure (the aforementioned multi-section sleeve can be used) The plugging pipe of the type pipeline structure is deployed. When deployed, the ring at the starting end of the first section of the plugging pipe is passed through the anchor cable at the upstream end of the breach to position the plugging pipe, so that the plugging pipe is lowered into the river water in the direction of the water flow; after the plugging pipe is placed into the river water, the impact of the river water drives the sleeves of each section to automatically expand and extend and pass through the breach to the inner side of the embankment at the downstream end of the breach. In this way, the plugging pipe is sunk into the river channel by deploying a vertical row of plugging pipes between each two adjacent anchor cables until the laying of the plugging wall is completed and the breach is blocked. Furthermore, when laying the plugging pipe, the laying of the first plugging pipe at the bottom layer that is in contact with the side of the embankment is completed first. Then, while completing the laying of the vertical row of steel pipes in contact with the side of the embankment, the laying of each horizontal row of steel pipes is gradually completed towards the far bank, so that the vertical cross-section of the plugging wall is always arranged in a similar triangle during the laying process, thereby better improving the stability of the laying process. Therefore, the pull-out pipe structure can be automatically deployed and deployed by relying on the impact force of the river water itself, so as to complete the sealing of large-scale river breaches conveniently, quickly and efficiently, and ensure the reliability and stability of the sealing process.

[0046] Furthermore, a pull rope with a length greater than the breach width is fixedly connected to the end of the last section of the blocked pipeline.

[0047] In this way, before the plugging pipe is ready to be deployed at the upstream end of the breach, the pull rope can be sent to the downstream end of the breach first. After the plugging pipe is lowered into the river water, the pull rope is used to pull the plugging pipe so that it is gradually stretched and expanded, and the direction of the end is controlled so that it can smoothly pass through the breach and reach the downstream end. Then, the plugging pipe is gradually controlled to sink and be deployed into the river. In this way, the sequence and process of the plugging pipe deployment can be stably controlled, greatly improving the efficiency and reliability of the breach plugging construction. The above-mentioned pull rope structure can be implemented in conjunction with the structure of the water-blocking guide plate in the inner cavity of the last section of the plugging pipe to jointly apply force and improve the smoothness of the casing pulling out; it can also be implemented separately to facilitate device manufacturing and save costs.

[0048] Therefore, based on the content disclosed so far, the present application also substantially discloses a traction-expandable river breach sealing method that is more suitable for large breaches (breach width greater than 15 meters), comprising the following steps: a) first completing the fixed setting of the foundation pile array at the bottom of the river at both ends of the breach (the aforementioned structure and fixing method can be used), and the tail of each foundation pile at the upstream end of the foundation pile array is respectively fixedly connected to an anchor cable on the embankment; b) obtaining a plugging pipe with a retractable multi-section sleeve pipe structure (the aforementioned multi-section sleeve pipe structure can be used) and deploying it, and before deployment, the pipe connected to the end of the plugging pipe is The pull rope at the end of the channel is sent to the embankment downstream of the breach by a drone or an electric-controlled boat; when placing the plugging pipe, the ring at the starting end of the first section of the plugging pipe is passed through the anchor cable at the upstream end of the breach to position the plugging pipe, so that the plugging pipe is lowered into the river water in the direction of the water flow; after the plugging pipe is placed into the river water, the pull rope is pulled by the embankment at the downstream end of the breach, so that each section of the sleeve is stretched and stretched under force and controlled to pass through the breach position to the inner side of the embankment downstream of the breach. In this way, the plugging pipe is sunk into the river channel by placing a vertical row of plugging pipes between each two adjacent anchor cables until the laying of the plugging wall is completed and the breach is blocked. Furthermore, when laying the plugging pipe, the first plugging pipe at the bottom layer that is adjacent to the side of the embankment is first laid, and then the vertical row of steel pipes adjacent to the side of the embankment are laid upwards while gradually completing the laying of each horizontal row of steel pipes towards the far bank, so that the vertical cross-section of the plugging wall is always arranged in a similar triangular shape during the laying process, thereby better improving the stability of the laying process. Therefore, the pull-out pipe structure can be quickly deployed and smoothly deployed by pulling the rope, which can conveniently, quickly and efficiently complete the sealing of large-scale river breaches and ensure the reliability and stability of the sealing process.

[0049] In summary, the present invention has the advantages of good blocking effect, good blocking structure stability, easy structure construction, high blocking construction process efficiency, good stability and reliability, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic diagram of the side view of the array-type river breach sealing structure of embodiment one.

[0051] Figure 2 This is a top view of the individual foundation pile array and the bottom-level blocking pipe in the array-type river breach blocking structure of implementation method one.

[0052] Figure 3 This is a schematic structural diagram of a drilled anchor serving as a foundation pile in the array-type river breach sealing structure according to the first embodiment.

[0053] Figure 4 for Figure 3 Top view of .

[0054] Figure 5This is a schematic diagram of the structure of a single blocked pipe in the array-type river breach blocking structure according to the first embodiment.

[0055] Figure 6 This is a schematic diagram of the array-type river breach sealing structure of implementation method one during construction.

[0056] Figure 7 This is a schematic diagram of the array-type river breach sealing structure of implementation mode 1 after construction is completed.

[0057] Figure 8 This is a schematic diagram of the structure of the pipeline blocking method used in the second implementation method.

[0058] Figure 9 This is a schematic diagram of the structure of the pipeline blocking method used in the third implementation method.

[0059] Figure 10 for Figure 9 side view.

[0060] Figure 11 This is a schematic diagram of the structure of the pipeline blocking method used in the fourth implementation method. DETAILED DESCRIPTION

[0061] The present invention will be described in further detail below with reference to the accompanying drawings.

[0062] Implementation method 1: See Figure 1-7 As shown, an array-type river breach sealing structure includes a pile array 1 fixed to the bottom of the river channel at both ends of the breach of an embankment 7, and a sealing wall 2 formed above the pile array. A sealing pipe 3 is clamped between the pile arrays 1 at both ends. The sealing pipe 3 is laid in multiple layers from bottom to top and stacked to form the sealing wall 2. The pile array 1 is composed of piles arranged in an array.

[0063] In this way, a blocking pipe with a length greater than the width of the breach is used to form a blocking wall. The bottom of the blocking wall is fixed by the pile array, and the outer side of the blocking wall can directly contact the side of the embankment on both sides of the breach. Even if the wall is washed away, the blocking pipes can still be intercepted by the embankment under the impact of the water flow and stick to the side of the embankment, without reducing the flow blocking effect. Therefore, the reliability and stability of the blocking effect are greatly improved. The design of the pile array not only facilitates the positioning of the blocking pipes and increases the width of the blocking structure, but also allows part of the impact force of the river breach to be transferred downward to the riverbed, reducing the pressure on the embankment and better preventing the expansion of the breach.

[0064] Wherein, both ends of the inner cavity of the blocking pipe 3 are connected.

[0065] In this way, the plugging pipe is a hollow structure, which is lighter than the gabion, reducing the difficulty of placement and improving the plugging efficiency. In addition, the plugging pipe is arranged in the direction of the river, so the downstream river water can pass through the inside of the pipe, greatly reducing the impact of the downstream river water on the pipe and improving the stability of the plugging structure.

[0066] Wherein, the blocking pipe 3 is a round pipe.

[0067] In this way, the river water rushing out from the direction of the breach will impact the pipeline horizontally. Since the cross-section of the pipeline itself is circular, the impact force of the river water on the pipeline can be slowed down to the maximum length, thereby improving the stability of the plugging. In particular, it greatly improves the stability of the plugged pipeline during the deployment process and the initial stage of deployment, avoiding the defect that the plugging device is very easily washed away by the river water during the deployment process.

[0068] Among them, the laying width of each layer of blocking pipes along the direction perpendicular to the embankment gradually decreases from bottom to top.

[0069] In this way, the overall stability of the blocking wall can be better improved.

[0070] Among them, the distance between each row of piles from the shore side to the far shore side in the pile array 1 is the diameter of the blocked pipe, and the diameter of the upper end of the pile is smaller than the diameter of the blocked pipe.

[0071] In this way, the bottom row or rows of blocking pipes can be clamped between the rows of foundation piles until the upper surface of the blocking pipes exceeds the upper surface of the foundation piles. The next row of blocking pipes above can then be conveniently clamped into the intervals of the lower blocking pipes and stacked upward in sequence to form a blocking wall, thereby better improving stability.

[0072] Among them, the foundation pile arrays 1 at both ends of the breach are arranged symmetrically on the left and right, and the sides of the foundation pile arrays on the bank side are connected to the embankment, and the sides on the far bank side are in a stepped shape with a larger width near the breach position.

[0073] In this way, even during the sealing process, the long-term impact of the breach and the gradual expansion of the river water can still ensure the stability of the overall structure.

[0074] The bank-side edge of the pile array 1 is separated from the embankment by a diameter of the blocked pipe.

[0075] In this way, it is convenient to install the first blocking steel pipe along the lower inner side of the embankment and clamp it between the foundation pile array and the embankment, and based on this, gradually complete the laying of the blocking wall.

[0076] The length of the plugging pipe 3 at the far shore side is greater than the breach width but less than the length of the plugging pipe at the near shore side.

[0077] In this way, the weight of the blocking wall can be better reduced, the lateral pressure on the embankment can be reduced, and it can also cooperate well with the stepped foundation pile array.

[0078] The foundation pile is formed by inserting the lower end of a drill anchor 4 with a pointed end into the bottom of the riverbed.

[0079] This structure is simple and offers reliable fixation. During implementation, a catapult can be used to launch the piles from the embankment and drill into the riverbed. In other implementations, the foundation piles can also utilize the structures described in the applicant's previously filed patents CN107447728B - A River Breach Emergency Blocking Method Based on an Array of Rocket Drilling Anchors - and CN107587507A - Rocket Drilling Anchors, which offer similar functionality. Other anchoring devices that facilitate fixation to the riverbed can also be used.

[0080] The lower end of the ground anchor 4 has a triangular needle-shaped tip, and the surface of the anchor rod has three spirally arranged edges. Like this, it can better drill into the bottom of the riverbed and improve the blocking efficiency.

[0081] Among them, in the pile array, the tail of each pile at least at the upstream end is also fixedly connected to an anchor cable 5, the upper end of the anchor cable 5 is fixed to the embankment 7, and the end of each oblique vertical row of blocking pipes is clamped between the corresponding adjacent anchor cables (during implementation, the upstream and downstream ends can have this structure at the same time).

[0082] This makes it easier to place the blocking pipes into the riverbed in a more orderly manner. At the same time, the anchor cable's assistance in placing the blocking pipes facilitates control and adjustment of the order in which each blocking pipe is laid. This allows the laying of the first blocking pipe at the bottom layer, which is in contact with the side of the embankment, to be completed first. Then, while completing the laying of the vertical row of steel pipes in contact with the side of the embankment, the laying of each horizontal row of steel pipes can be gradually completed toward the far bank. This not only facilitates the rapid sealing of the breach and reduces the water flow rate as quickly as possible, but also ensures that the cross-section of the blocking wall remains in a triangular arrangement throughout the process of laying the blocking pipes, greatly improving the stability and reliability of the laying process.

[0083] In this embodiment, the blocking pipe 3 is an integral single-tube pipe, and the tail of each pile at the upstream and downstream ends in the pile array is fixedly connected to an anchor cable 5, and the upstream and downstream ends of the blocking pipe are also fixed with a ring 6, which can be slidably mounted on the corresponding anchor cable 5.

[0084] This structure is more suitable for implementation in cases where the breach width is small (less than 10 meters). During implementation, the lower end of the plugging pipe can be directly transferred to the downstream end of the breach on the embankment. The rings at the upper and lower ends of the plugging pipe are then threaded onto the corresponding anchor cables, and the plugging pipe is deployed. This allows for stable control of the sequence and process of plugging pipe deployment, greatly improving the efficiency and reliability of breach sealing construction.

[0085] Therefore, based on the content disclosed so far, this application also discloses a method for sealing a river breach that is more suitable for small breaches (breach width less than 10 meters), including the following steps: a. First, complete the fixing and setting of the foundation pile array at the bottom of the river at both ends of the breach (using the above-mentioned structure and fixing method, see Figure 2 ), the tail of each pile at the upstream and downstream ends of the pile array is fixedly connected to the embankment with an anchor cable; b. Obtain a plugging pipe with a length greater than the river breach, fix a through-ring at both ends of the plugging pipe, and directly transfer the lower end of the plugging pipe to the downstream end of the breach on the embankment; c. Pass the through-rings at the upper and lower ends of the plugging pipe onto the corresponding anchor cables, and then place the plugging pipe into the river along the anchor cables. A vertical row of plugging pipes is placed between every two adjacent anchor cables until the laying of the plugging wall is completed and the breach is blocked (see Figure 7 Furthermore, when laying the blocking pipes, first complete the laying of the first blocking pipe at the bottom layer that is close to the side of the embankment, and then complete the laying of the vertical row of steel pipes that are close to the side of the embankment upwards while gradually completing the laying of each horizontal row of steel pipes towards the far bank (see Figure 6 ), maintaining a triangular vertical cross-section during the installation process, thereby improving the stability of the installation process. This allows for the convenient, quick, and efficient sealing of small breaches, ensuring the reliability and stability of the sealing process.

[0086] Therefore, based on the introduction so far, it can be understood that the above-mentioned river breach sealing method applicable to small breaches is actually implemented based on a breach sealing device with the following structure: the breach sealing device includes conventional foundation piles (for forming a foundation pile array) and end foundation piles, at least one anchor cable fixedly connected to the tail of the end foundation pile, and also includes a sealing pipe with a length greater than the width of the breach, with a ring fixed at each end of the sealing pipe, which is used to slidably cooperate with the anchor cable. Furthermore, the breach sealing device can also make consistent optimization adjustments to the various local details of the river breach sealing structure corresponding to this specific embodiment, and will not be repeated here.

[0087] Implementation Method

[0088] The array type river breach sealing structure of this embodiment is different from the embodiment 1 only in the structure of the sealing pipe 3 and the rest of the structure is exactly the same. Figure 8The blocking pipe 3 is an integral single-tube pipe, and both ends of the blocking pipe 3 are fixedly connected with a pull rope 8 (no ring is provided), and the upper end of the pull rope 8 is fixed to the embankment.

[0089] This structure is particularly suitable for relatively large breaches (10-20 meters). In these cases, the large breach and the long length of the pipe make it difficult to directly transfer the sealing pipe from the embankment above the breach to the downstream end. Therefore, the sealing pipe can be lowered halfway into the river channel from the upstream end of the breach and submerged below the water surface, kept suspended by a rope. The upper half of the rope at the downstream end of the sealing pipe is then delivered to the downstream end of the breach using a drone. The sealing pipe is then gradually controlled through the breach and lowered into the river channel. This method allows for stable control of the sequence and process of pipe deployment, greatly improving the efficiency and reliability of breach sealing operations.

[0090] Therefore, based on the content disclosed so far, this application substantially discloses a method for sealing a river breach that is more suitable for medium-sized breaches (breach width of 10-15 meters), including the following steps: a. First, complete the fixed setting of the foundation pile array at the bottom of the river at both ends of the breach (the aforementioned structure and fixing method can be used), and the tail of each foundation pile at the upstream and downstream ends of the foundation pile array is respectively fixedly connected to an anchor cable on the embankment; b. Obtain a sealing pipe with a length greater than the river breach, and fix a pull rope at each end of the sealing pipe. The length of the pull rope at the upstream end of the sealing pipe is greater than the depth of the embankment, and the sealing The length of the pull rope at the downstream end of the pipeline is equal to the sum of the depth of the embankment and the length of the breach; c. When placing the blocking pipe, the blocking pipe is directly lowered into the river channel along the direction of the water flow at the upstream end of the breach and submerged below the water surface, and the rope is used to keep it in a suspended state; d. Use an unmanned aerial vehicle or an electrically controlled boat to send the upper half of the pull rope at the downstream end of the blocking pipe to the downstream end of the breach, and then control the blocking pipe to pass through the breach by pulling the ropes at both ends of the blocking pipe, and sink it into the river channel in the manner of placing a vertical row of blocking pipes between each two adjacent anchor cables until the laying of the blocking wall is completed and the breach is blocked. Furthermore, when laying the blocking pipe, first complete the laying of the first blocking pipe at the bottom layer that is adjacent to the side of the embankment, and then complete the laying of the vertical row of steel pipes adjacent to the side of the embankment upwards while gradually completing the laying of each horizontal row of steel pipes towards the far bank, so that the vertical cross-section of the blocking wall is always arranged in a similar triangular shape during the laying process, thereby better improving the stability of the laying process. Therefore, it is possible to conveniently, quickly and efficiently complete the sealing of medium-sized river breaches, ensuring the reliability and stability of the sealing process.

[0091] Based on the introduction thus far, it should be understood that the aforementioned method for sealing medium-sized river breaches is actually implemented based on a breach sealing device with the following structure: the breach sealing device comprises conventional foundation piles (for forming a foundation pile array) and end foundation piles, with at least one anchor cable fixedly connected to the tail of the end foundation pile; and a sealing pipe having a length greater than the width of the breach, with pull ropes fixedly connected at both ends of the sealing pipe. Furthermore, the breach sealing device can also be optimized and adjusted accordingly to the various local details of the river breach sealing structure of this specific embodiment, and these details will not be repeated here.

[0092] Implementation Method

[0093] The array-type river breach sealing structure of this embodiment differs from the first and second embodiments only in the structure of the pipe blocking, while the rest of the structures are identical. Figure 9-10 The blocking pipe 3 is a retractable multi-section sleeve-type pipe (not a single-tube structure), and its length after expansion is greater than the breach width.

[0094] This makes it easy to drop the plugging pipe into the river channel in a contracted state at the upstream end of the breach, then expand it to its extended state for installation. This structure is particularly suitable for large breaches (over 15 meters), where the required length of plugging pipe makes it difficult to transport, deploy, and control. Therefore, a telescopic sleeve is used, allowing the pipe to be dropped into the river channel in a contracted state at the upstream end of the breach, then expanded and extended for installation and sealing. This significantly improves plugging efficiency.

[0095] Among them, a ring 6 is fixed at the starting end of the first section of the blocked pipe 3, and the ring can be slidably mounted on the corresponding anchor cable.

[0096] In this way, when the plugging pipe is placed at the upstream end during implementation, it is convenient to rely on the cooperation of the ring and the anchor cable to complete the fixation of the head end of the plugging pipe, making it easier to deploy it; it is convenient to achieve stable control of the sequence and process of placing the plugging pipe, greatly improving the efficiency and reliability of the breach plugging construction.

[0097] Among them, a connecting spring piece 10 is provided on the outer surface of the last section of the blocking pipe 3. The connecting spring piece 10 is in the shape of a long strip along the length direction of the pipe. One end of the connecting spring piece 10 is fixedly connected to the blocking pipe, and the other end is provided with a barb and extends obliquely outward for a distance when not subject to force. This distance is greater than the radius difference between the last section of the pipe and the first section of the pipe.

[0098] This arrangement of the connecting spring creates friction between it and the penultimate pipe section, allowing the final pipe section to be pulled out last during the plugging process. Simultaneously, the connecting spring automatically ejects after the final pipe section is pulled out, allowing the ejected connecting spring to connect with the connecting springs at the ends of adjacent plugging pipes. This avoids the problem of loosening and deflection, which can occur due to the sleeve-type plugging pipe design and the reduced radius at the end. The connecting spring securely connects the ends of the plugging pipes, further improving the stability and reliability of the entire plugging wall.

[0099] When the connecting spring piece 10 is in a stress-free state after being ejected, the barb has an outwardly twisted angle. In this way, it is more convenient to achieve the connection and fastening between adjacent blocked pipes by relying on the barb of the ejected connecting spring piece.

[0100] The upstream end of the connecting spring 10 is fixed to the last section of the blocking pipe, which makes it convenient to collect and recycle the pulled-out blocking pipe.

[0101] The connecting spring piece 10 is directly cut and formed on the pipe, which is more convenient to manufacture and has better structural integrity.

[0102] Among them, a water-blocking guide piece 11 is further provided in the inner cavity of the last section of the blocked pipe 3. The water-blocking guide piece 11 is a plurality of pieces uniformly distributed along the circumference and spirally arranged in the pipe.

[0103] This allows the sealing pipe to be deployed upstream of the breach, where the water-blocking guide plate withstands the impact of the water flow, driving the sleeve-type pipe's sealing pipe to gradually extend and expand. The spiral design of the water-blocking guide plate allows each sleeve section to be pulled in the direction of rotation, making it easier to deploy. Furthermore, after the final section of the pipe is deployed, the spring-loaded connecting pieces can be better connected and fixed together.

[0104] Therefore, based on the content disclosed so far, this application also substantially discloses a water flow impact self-expanding river breach sealing method that is more suitable for large breaches (breach width greater than 15 meters), including the following steps: a) first complete the fixed installation of the foundation pile array at the bottom of the river at both ends of the breach (the aforementioned structure and fixing method can be used), and the tail of each foundation pile at the upstream end of the foundation pile array is respectively fixedly connected to the embankment with an anchor cable; b) obtain a retractable multi-section sleeve pipe structure (the aforementioned multi-section sleeve can be used) The plugging pipe of the type pipeline structure is deployed. When deployed, the ring at the starting end of the first section of the plugging pipe is passed through the anchor cable at the upstream end of the breach to position the plugging pipe, so that the plugging pipe is lowered into the river water in the direction of the water flow; after the plugging pipe is placed into the river water, the impact of the river water drives the sleeves of each section to automatically expand and extend and pass through the breach to the inner side of the embankment at the downstream end of the breach. In this way, the plugging pipe is sunk into the river channel by deploying a vertical row of plugging pipes between each two adjacent anchor cables until the laying of the plugging wall is completed and the breach is blocked. Furthermore, when laying the plugging pipe, the laying of the first plugging pipe at the bottom layer that is in contact with the side of the embankment is completed first. Then, while completing the laying of the vertical row of steel pipes in contact with the side of the embankment, the laying of each horizontal row of steel pipes is gradually completed towards the far bank, so that the vertical cross-section of the plugging wall is always arranged in a similar triangle during the laying process, thereby better improving the stability of the laying process. Therefore, the pull-out pipe structure can be automatically deployed and deployed by relying on the impact force of the river water itself, so as to complete the sealing of large-scale river breaches conveniently, quickly and efficiently, and ensure the reliability and stability of the sealing process.

[0105] Based on the introduction thus far, it can be understood that the aforementioned water flow impact self-expanding river breach sealing method is actually implemented based on a self-expanding breach sealing device with the following structure: the self-expanding breach sealing device includes conventional foundation piles (for forming a foundation pile array) and end foundation piles, at least one anchor cable fixedly connected to the tail of the end foundation pile, and a sealing pipe with an expansion length greater than the breach width. The sealing pipe is a retractable multi-section sleeve-type pipe (not a single-tube structure), with a ring fixed at the starting end of the first section of the sealing pipe, which can be slidably sleeved onto the corresponding anchor cable. The inner cavity of the last section of the sealing pipe is also provided with a water-blocking guide vane, which is a plurality of water-blocking guide vanes evenly distributed along the circumference and spirally arranged within the pipe. Furthermore, the breach sealing device can also be optimized and adjusted in accordance with the various local details of the river breach sealing structure of this specific embodiment, and achieves the better effect after the corresponding optimization and adjustment, which will not be repeated here.

[0106] Implementation Method

[0107] The difference between the array-type river breach sealing structure of this embodiment and the specific embodiment 3 is only the expansion structure of the sealing pipe, while the rest of the structure is exactly the same. The sealing pipe 3 of this embodiment is based on the structure of the embodiment 3, and the end of the last section of the pipe is further fixedly connected to a pull rope 12 with a length greater than the width of the breach. Figure 11 .

[0108] In this way, before the plugging pipe is ready to be deployed at the upstream end of the breach, the pull rope can be sent to the downstream end of the breach first. After the plugging pipe is lowered into the river water, the pull rope is used to pull the plugging pipe so that it is gradually stretched and expanded, and the direction of the end is controlled so that it can smoothly pass through the breach and reach the downstream end. Then, the plugging pipe is gradually controlled to sink and be deployed into the river. In this way, the sequence and process of the plugging pipe deployment can be stably controlled, greatly improving the efficiency and reliability of the breach plugging construction. The above-mentioned pull rope structure can be implemented in conjunction with the structure of the water-blocking guide plate in the inner cavity of the last section of the plugging pipe to jointly apply force and improve the smoothness of the casing pulling out; it can also be implemented separately to facilitate device manufacturing and save costs.

[0109] Therefore, based on the content disclosed so far, the present application also substantially discloses a traction-expandable river breach sealing method that is more suitable for large breaches (breach width greater than 15 meters), comprising the following steps: a) first completing the fixed setting of the foundation pile array at the bottom of the river at both ends of the breach (the aforementioned structure and fixing method can be used), and the tail of each foundation pile at the upstream end of the foundation pile array is respectively fixedly connected to an anchor cable on the embankment; b) obtaining a plugging pipe with a retractable multi-section sleeve pipe structure (the aforementioned multi-section sleeve pipe structure can be used) and deploying it, and before deployment, the pipe connected to the end of the plugging pipe is The pull rope at the end of the channel is sent to the embankment downstream of the breach by a drone or an electric-controlled boat; when placing the plugging pipe, the ring at the starting end of the first section of the plugging pipe is passed through the anchor cable at the upstream end of the breach to position the plugging pipe, so that the plugging pipe is lowered into the river water in the direction of the water flow; after the plugging pipe is placed into the river water, the pull rope is pulled by the embankment at the downstream end of the breach, so that each section of the sleeve is stretched and stretched under force and controlled to pass through the breach position to the inner side of the embankment downstream of the breach. In this way, the plugging pipe is sunk into the river channel by placing a vertical row of plugging pipes between each two adjacent anchor cables until the laying of the plugging wall is completed and the breach is blocked. Furthermore, when laying the plugging pipe, the first plugging pipe at the bottom layer that is adjacent to the side of the embankment is first laid, and then the vertical row of steel pipes adjacent to the side of the embankment are laid upwards while gradually completing the laying of each horizontal row of steel pipes towards the far bank, so that the vertical cross-section of the plugging wall is always arranged in a similar triangular shape during the laying process, thereby better improving the stability of the laying process. Therefore, the pull-out pipe structure can be quickly deployed and smoothly deployed by pulling the rope, which can conveniently, quickly and efficiently complete the sealing of large-scale river breaches and ensure the reliability and stability of the sealing process.

[0110] Based on the introduction so far, it can be understood that the above-mentioned traction-expandable river breach sealing method is actually implemented based on a traction-expandable breach sealing device with the following structure: the traction-expandable breach sealing device includes conventional foundation piles (for forming a foundation pile array) and end foundation piles, at least one anchor cable is fixedly connected to the tail of the end foundation pile, and also includes a sealing pipe with an expanded length greater than the breach width. The sealing pipe is a retractable multi-section sleeve-type pipe (not a single-tube structure), and a ring is fixed at the starting end of the first section of the sealing pipe, which can be slidably mounted on the corresponding anchor cable. A pull rope with a length greater than the breach width is also fixedly connected to the end of the last section of the sealing pipe. Furthermore, the breach sealing device can also make consistent optimization adjustments to the various local detail structures of the river breach sealing structure corresponding to this specific embodiment, and has a better effect after the corresponding optimization and adjustment, which will not be repeated here.

Claims

1. An array-type river breach sealing structure, comprising an array of foundation piles fixed to the bottom of the river at both ends of the breach of the embankment, and a sealing wall formed above the array of foundation piles, characterized in that: A blocking pipe is also provided between the two end pile arrays. The blocking pipes are laid in multiple layers from bottom to top and stacked to form the blocking wall. The two ends of the inner cavity of the blocking pipe are connected so that the river water flowing downward can pass through the inside of the pipe. In the pile array, the distance between each row of piles from the shore side to the far shore side is one diameter of the plugged pipe, and the diameter of the top end of the pile is smaller than the diameter of the plugged pipe; The pile arrays at both ends of the breach are arranged symmetrically, with the bank-side edges of the pile arrays touching the embankment, and the far-bank edges forming a stepped shape with a wider width closer to the breach. The bank-side edge of the pile array is separated from the embankment by a diameter of the plugging pipe; The length of the plugging pipe at the far shore side is greater than the breach width but less than the length of the plugging pipe at the near shore side.

2. The array-type river breach sealing structure according to claim 1, characterized in that: The blocking pipe is a round pipe.

3. The array-type river breach sealing structure according to claim 1, characterized in that: The laying width of each layer of blocked pipes in the direction perpendicular to the embankment gradually decreases from bottom to top.

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