Dam breach plugging equipment and operation method thereof

Abstract

The invention is suitable for the technical field of hydraulic engineering, and provides dam breach plugging equipment and an operation method thereof.The dam breach plugging equipment comprises a floating supporting platform, a plurality of gauge pile limiting grooves are formed in one side of the floating supporting platform at intervals, and pre-inserted gauge piles are installed in the gauge pile limiting grooves; a plurality of connecting row piles are arranged between every two adjacent pre-inserting positioning piles, the pre-inserting positioning piles with the fixed intervals serve as the standard, the multiple pre-inserting positioning piles and the multiple connecting row piles can be rapidly connected, and the pile bodies are inserted into the water bottom through a pile body transferring and installing all-in-one machine; in this way, a water separation wall can be formed at the dike breach to separate the dike breach from the main river channel, the dike breach is conveniently and continuously filled with the dike building materials so as to complete repairing of the dike breach, and the dike building materials are prevented from being continuously washed away by water flow of the main river channel in the filling process.

Description

Technical Field

[0001] The invention is applicable to the technical field of water conservancy engineering, and provides a dam breach sealing device and an operation method thereof. Background Art

[0002] A dam breach refers to the collapse of a river embankment, causing a large amount of river water to flow out of the breach. This phenomenon is usually caused by cracking and sliding of the embankment or embankment foundation under the action of river water immersion and dynamic water pressure and static water pressure. River embankment breaches often cause serious flood disasters, which may cause towns, villages, farmlands, railways, and roads to be flooded, causing a large number of casualties and property losses. It is very easy to occur during summer rainstorms. In current routine operations, embankment breach repair is usually carried out by placing a large amount of fillers into the breach position to achieve blocking. However, during the blocking process, the river water will continue to scour the breach position, especially in the stage when the flood has not ended, the water pressure is particularly large. Under the existing technical conditions, the fillers can only be gradually filled into the breach. In this case, the pressure of the flood will continue to wash away the filled fillers, which is why a large number of breaches cannot be effectively blocked in time when a flood occurs. Therefore, a device is now needed to separate the breach from the main river flow when the breach is filled, to prevent the fillers from being washed away during the continuous injection process, so that the fillers can effectively fill the breach. Summary of the invention

[0003] To this end, the present invention provides a dam breach sealing device and an operating method thereof. Through the device, a water-blocking wall composed of a plurality of pre-inserted positioning piles and a plurality of connecting piles can be installed between the dam breach and the main river channel, which can effectively block the water flow of the main river channel and facilitate the repair of the dam breach.

[0004] In order to achieve the above object, the present invention provides the following technical solution: a dam breach plugging device, comprising:

[0005] A floating support platform, wherein a plurality of positioning pile limit grooves are arranged at intervals on one side of the floating support platform;

[0006] If the pre-inserted positioning piles are respectively slidably installed in the plurality of positioning pile limiting grooves, the pre-inserted positioning piles include a pre-inserted pile body, and the outer side of the pre-inserted pile body is respectively provided with a hull connecting slider, a pre-inserted pile connecting groove and a pre-inserted pile connecting slider, and the hull connecting slider is slidably connected with the positioning pile limiting groove;

[0007] A plurality of connecting rows of piles, wherein a plurality of connecting rows of piles are arranged between two adjacent pre-inserted positioning piles, wherein the connecting row of piles comprises a pile body, and a pile row connecting groove and a pile row connecting slider are respectively arranged on the outer side of the pile body, wherein the pile row connecting groove is matched with the pre-inserted pile connecting slider, and the pile row connecting slider is matched with the pre-inserted pile connecting groove, and the pile row connecting grooves and the pile row connecting sliders between the plurality of connecting rows of piles are matched with each other.

[0008] In a further solution, a plurality of platform connection interfaces are provided on a circle of sides of the floating support platform, positioning pile installation blocks are provided in part or all of the platform connection interfaces on one side of the floating support platform, and the positioning pile limiting grooves are provided on the positioning pile installation blocks.

[0009] In a further solution, there are multiple floating support platforms, and platform connecting blocks are provided between adjacent floating support platforms, and both ends of the platform connecting block are detachably fixedly connected to the platform connecting interfaces of two adjacent floating support platforms.

[0010] In a further solution, it also includes a pile transfer and installation integrated machine fixedly set on a floating support platform, the pile transfer and installation integrated machine includes a rotating base, the rotating base is fixedly provided with a pile lifting device, the upper part of the pile lifting device is provided with a pile driving device, and the floating support platform is located below the pile lifting device and is provided with a pile storage bin.

[0011] In a further solution, it also includes a thruster, which is arranged on one side of the floating support platform.

[0012] In a further solution, a pre-inserted pile positioning pin is slidably provided on one side of the positioning pile limiting groove, and a pile body positioning pin hole matching the pile body limiting pin is provided on the outer side wall of the pre-inserted pile body.

[0013] In a further solution, positioning pile holes are respectively provided at the left and right ends of the floating support platform, and platform positioning piles are provided in the platform positioning pile holes.

[0014] At the same time, the present invention also includes an operation method of a dam breach plugging device, comprising the following steps:

[0015] S1. In the preparation stage, the floating support platform is moved to the breach of the dam by means of a thruster, and then the position of the floating support platform is adjusted so that the side with the pre-inserted positioning piles is close to the sealing position of the breach of the dam, and then the platform positioning piles are inserted into the underwater soil layer to complete the fixing of the floating support platform;

[0016] S2. During the piling stage, the pre-inserted pile locating pins are pulled out from the locating pin holes of the pre-inserted piles, and then the pre-inserted piles are inserted into the underwater soil layer in sequence by the piling equipment. Then, several connecting piles are installed between two adjacent pre-inserted piles. First, the first connecting pile row is hoisted and transported to the top of the two adjacent pre-inserted piles by the pile body transfer and installation integrated machine, and then the first connecting pile row is controlled downward so that the pile row connection groove of the connecting pile row is slidably assembled with the pre-inserted pile connection slider of the first pre-inserted pile, and then the remaining connecting piles are installed. Installation of piles, control the pile transfer and installation integrated machine to slide and assemble the pre-inserted pile connection groove of the next connected row of piles with the row of pile connection slider of the previous connected row of piles together, according to the above operation, assemble several connected row of piles in sequence between two adjacent pre-inserted positioning piles, wherein the row of pile connection slider of the last connected row of piles is slidably assembled with the pre-inserted pile connection groove of the second pre-inserted positioning pile, and then insert these connected row of piles into the underwater soil layer in sequence through the piling equipment, and then repeat the above process, and install several connected row of piles between every two adjacent pre-inserted positioning piles;

[0017] S3. During the embankment repair stage, in step S2, a number of pre-inserted positioning piles and a number of connecting pile rows are connected to form a watertight wall. The embankment breach is surrounded by the watertight wall and the embankments on both sides of the breach to form a nearly closed space. First, the water in the embankment breach is pumped out, and then the embankment building materials are filled in the space. After the embankment building materials are constructed, the connecting pile rows and the pre-inserted positioning piles are successively pumped out from the underwater soil layer, the connecting pile rows are transferred to the pile row storage bin, the pre-inserted pile positioning pins are inserted into the positioning pin holes of the pre-inserted positioning piles, and finally the platform positioning piles are pumped out of the underwater soil layer, and the floating support platform leaves freely.

[0018] In a further solution, in step S1, when the dam breach is too long to be sealed by one floating support platform, first determine the number of floating support platforms required based on the length of the dam breach, then move the first floating support platform close to one side of the dam, then perform step S1 to fix the first floating support platform, then move the second floating support platform to one side of the first floating support platform, and detachably and fixedly connect the two ends of the platform connecting block to the platform connection interfaces of the two floating support platforms, so that the two floating support platforms are connected in sequence, then repeat the operation of fixing the floating support platform in step S1 to fix the second floating support platform, and then repeat the above process until multiple floating support platforms are connected end to end and fixed in sequence.

[0019] In a further solution, in step S1, the following step is added: installing an "L"-shaped anti-collapse pile group at the corner position of the breach of the embankments on both sides, the "L"-shaped anti-collapse pile group is composed of a number of embankment anti-collapse piles connected end to end, and the embankment anti-collapse piles are inserted into the underwater soil layer by piling equipment; in step S3, the following step is added: filling the space between the "L"-shaped anti-collapse pile group and the embankment with embankment building materials, and at the same time, removing the embankment anti-collapse piles of the "L"-shaped anti-collapse pile group before the floating support platform leaves.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, a water-blocking wall composed of a plurality of pre-inserted positioning piles and a plurality of connecting piles is installed at the breach of the dam through a floating support platform, so as to temporarily isolate the main river flow from the inside of the dam breach, facilitate continuous filling of embankment materials into the dam breach to complete the repair of the dam breach, and prevent the embankment materials from being continuously washed away by the main river flow during the filling process;

[0022] 2. Several positioning pile limit grooves are arranged at intervals on one side of the floating support platform, and then pre-inserted positioning piles are pre-assembled in the positioning pile limit grooves. This method allows the relative positions of the pre-inserted positioning piles to be determined before construction. In actual operation, the pre-inserted positioning piles can avoid the process of determining the pile position and quickly realize pile driving. The connecting piles between adjacent pre-inserted positioning piles can be quickly positioned by connecting the end to the end, and then pile driving is carried out uniformly. It is no longer necessary to determine the pile position of each pile separately, which saves a lot of positioning time in the time-sensitive breach repair;

[0023] 3. The floating support platform in the present invention adopts a modular design. Multiple floating support platforms can be quickly connected together through platform connecting blocks. Such a design can not only adapt to the repair of dam breaches of various lengths, but also expand the area of ​​the water construction platform by splicing, making the operation more flexible.

[0024] 4. In the operating method of the dam breach sealing equipment mentioned in the present invention, an "L"-shaped anti-collapse pile group is installed at the corner position of the breach of the dams on both sides. If the pre-insertion positioning piles and the connection pile row are installed only according to the breach length at the beginning of the operation, during the repair process, the main river channel will continue to scour the edge of the dam, and the corner position of the breach of the dams on both sides is very likely to collapse. In this way, the length of the breach will be expanded, and the length of the original retaining wall will be insufficient. The flood will still enter the breach from the new collapse position on both sides. Installing an "L"-shaped anti-collapse pile group at the corner position can protect this position and avoid collapse during the repair process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the operation of a dam breach sealing device mentioned in Example 1 when sealing a dam breach;

[0026] Figure 2 It is a structural schematic diagram of the floating support platform mentioned in the present invention;

[0027] Figure 3 It is a schematic diagram of the assembly between the pre-inserted positioning piles and the floating support platform, between the pre-inserted positioning piles and the connecting row piles, and between the connecting row piles and the connecting row piles mentioned in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the pre-inserted positioning pile mentioned in the present invention;

[0029] Figure 5 It is a structural schematic diagram of the connecting row of piles mentioned in the present invention;

[0030] Figure 6 It is a schematic diagram of the assembly between the pre-inserted positioning piles and the floating support platform mentioned in the present invention;

[0031] Figure 7 It is a schematic diagram of the operation of a dam breach sealing device mentioned in Example 2 when sealing a dam breach;

[0032] Figure 8 This is a schematic diagram of the operation of a dam breach sealing device mentioned in Example 3 when sealing a dam breach.

[0033] In the figure:

[0034] 100, floating support platform, 110, pile storage bin, 120, positioning pile installation block, 130, platform connection interface, 140, positioning pile hole, 150, pre-inserted pile positioning pin;

[0035] 200. Pile transfer and installation integrated machine;

[0036] 300, pre-inserted positioning pile, 310, pre-inserted pile body, 320, hull connecting slider, 330, pre-inserted pile connecting slider, 340, pre-inserted pile connecting groove;

[0037] 400, connecting row piles, 410, row pile body, 420, row pile connecting slider, 430, row pile connecting groove;

[0038] 500, thruster;

[0039] 600, platform positioning piles;

[0040] 700, "L" shaped anti-collapse pile group;

[0041] 800, platform connection block. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0043] Example 1, refer to the attached Figure 1 The present invention provides a dam breach sealing device, including a floating support platform 100, as shown in the attached Figure 2 As shown, a plurality of platform connection interfaces 130 are provided on the side of the floating support platform 100, and a positioning pile installation block 120 is provided in part or all of the platform connection interfaces 130 on one side of the floating support platform 100, and the positioning pile installation block 120 is provided with a positioning pile limiting groove, as shown in the attached Figure 3 , Attachment Figure 4 And attached Figure 6 As shown, the positioning pile limiting groove is slidably installed with a pre-inserted positioning pile 300, and the pre-inserted positioning pile 300 includes a pre-inserted pile body 310, and the outer side of the pre-inserted pile body 310 is respectively provided with a hull connecting slider 320, a pre-inserted pile connecting groove 340 and a pre-inserted pile connecting slider 330, the hull connecting slider 320 is slidably connected with the positioning pile limiting groove, and a pre-inserted pile positioning pin 150 is slidably provided on one side of the positioning pile limiting groove, and a pile body positioning pin hole matched with the pile body limiting pin is provided on the outer side wall of the pre-inserted pile body 310, and the height of the pre-inserted positioning pile 300 can be controlled by the pile body limiting pin and the pile body positioning pin hole, so as to facilitate the flexible movement of the floating support platform 100 in the non-operating stage;

[0044] During the operation phase, a plurality of connecting piles 400 are arranged between two adjacent pre-inserted positioning piles 300, as shown in the attached Figure 5 As shown, the connected row of piles 400 includes a pile body 410, and the outer sides of the pile body 410 are respectively provided with a pile row connection groove 430 and a pile row connection slider 420, the pile row connection groove 430 is adapted to the pre-inserted pile connection slider 330, and the pile row connection slider 420 is adapted to the pre-inserted pile connection groove 340, and the pile row connection grooves 430 and the pile row connection slider 420 between a plurality of connected rows of piles 400 are adapted to each other. In this embodiment, the pile row connection grooves 430 and the pile row connection slider 420 are arranged on the same straight line, and at the same time, the pre-inserted pile connection grooves 340 and the pre-inserted pile connection slider 330 are also arranged on the same straight line, and a plurality of pre-inserted positioning piles 300 and a plurality of connected rows of piles 400 are connected end to end to form a water-blocking wall for blocking the water flow.

[0045] A pile transfer and installation integrated machine 200 and a thruster 500 are also provided on the floating support platform 100. The thruster 500 is arranged on one side of the floating support platform 100 and is a conventional ship thruster 500, which is used to drive the floating support platform 100 to move. The pile transfer and installation integrated machine 200 includes a rotating base, on which a pile lifting device is fixedly provided. A pile driving device is provided on the upper part of the pile lifting device. The pile driving device is existing technology, such as a common oil hammer, etc. The floating support platform 100 is located below the pile lifting device and is provided with a pile storage bin 110. In the non-operating stage, the connected row of piles 400 is stored in the pile storage bin 110, and is transferred and installed through the pile transfer and installation integrated machine 200 when needed.

[0046] In some of the schemes, positioning pile holes 140 are respectively provided at the left and right ends of the floating support platform 100, and platform positioning piles 600 are provided in the platform positioning pile holes 140. The platform positioning piles 600 can anchor the floating support platform 100 when the floating support platform 100 reaches a predetermined position, so as to facilitate subsequent operations.

[0047] The operating method of the dam breach sealing device mentioned in this embodiment includes the following steps:

[0048] S1. In the preparation stage, the floating support platform 100 is moved to the breach of the dam by means of the thruster 500, and then the position of the floating support platform 100 is adjusted so that the side provided with the pre-inserted positioning piles 300 is close to the blocking position of the breach of the dam, and then the platform positioning piles 600 are inserted into the underwater soil layer to complete the fixing of the floating support platform 100. At this time, the side of the floating support platform 100 provided with the pre-inserted positioning piles 300 is set at the junction of the breach of the dam and the main river channel;

[0049] S2. During the piling stage, the pre-inserted pile positioning pin 150 is pulled out from the positioning pin hole of the pre-inserted positioning pile 300, and then the pre-inserted positioning piles 300 are inserted into the bottom soil layer in sequence by the piling equipment, and then several connecting piles 400 are installed between two adjacent pre-inserted positioning piles 300, as shown in the attached Figure 3As shown, firstly, the first connecting row of piles 400 is hoisted and transported to the top of two adjacent pre-inserted positioning piles 300 by using the pile body transfer and installation integrated machine 200, and then the first connecting row of piles 400 is controlled to move downward so that the row of piles connection groove 430 of the connecting row of piles 400 is slidably assembled with the pre-inserted pile connection slider 330 of the first pre-inserted positioning pile 300, and then the installation of the remaining connecting row of piles 400 is started, and the pile body transfer and installation integrated machine 200 is controlled to slide and assemble the pre-inserted pile connection groove 340 of the next connecting row of piles 400 with the row of pile connection slider 420 of the previous connecting row of piles 400 together, and according to the above operation, several connecting row of piles 400 are sequentially assembled between two adjacent pre-inserted positioning piles 300, wherein the row of piles connection slider 420 of the last connecting row of piles 400 is slidably assembled with the pre-inserted pile connection groove 340 of the second pre-inserted positioning pile 300, and two pre-inserted positioning piles 300 in pre-fixed positions are used as the connecting row of piles 40 0 installation reference, so that these connecting piles 400 can be mutually limited. The advantage of this is that there is no need to position each connecting pile 400 separately. Then, these connecting piles 400 are inserted into the underwater soil layer in sequence by pile driving equipment, and then the above process is repeated. Several connecting piles 400 are installed between every two adjacent pre-inserted positioning piles 300. At the same time, in the connection structure between the connecting piles 400 and the pre-inserted positioning piles 300, the pile connection slider 420 and the pre-inserted pile connection slider 330 can just fill the gap between the piles, so that these connecting piles 400 and the pre-inserted positioning piles 300 are connected to each other to form a water-blocking wall. At the same time, if there is still a certain gap between the first and last pre-inserted positioning piles 300 and the embankments on both sides, the same method can be used to add connecting piles 400 between the first and last pre-inserted positioning piles 300 and the embankments on both sides according to actual conditions to fill the gap;

[0050] S3. During the dike repair stage, in step S2, a number of pre-inserted positioning piles 300 and a number of connecting pile rows 400 are connected to form a watertight wall. The dike breach is surrounded by the watertight wall and the dikes on both sides of the breach to form a nearly closed space. First, the water in the dike breach is pumped out. In actual operation, it is not necessary to pump out all the water. It is only necessary that the remaining water does not affect the repair of the breach. Then, the dike building materials are filled in the space. After the construction of the dike building materials is completed, the connecting pile rows 400 and the pre-inserted positioning piles 300 are successively pumped out from the underwater soil layer, the connecting pile rows 400 are transferred to the pile row storage bin, the pre-inserted pile positioning pins 150 are inserted into the pile body positioning pin holes of the pre-inserted positioning piles 300, and finally, the platform positioning piles 600 are pumped out of the underwater soil layer, and the floating support platform 100 is free to leave.

[0051] Example 2, refer to the attached Figure 7As shown, the dam breach plugging equipment in this embodiment includes multiple floating support platforms 100 in embodiment 1, and the components arranged on the floating support platform 100 in embodiment 1 are also provided in embodiment 2. At the same time, in embodiment 2, a plurality of platform connection interfaces 130 are arranged on a circle of sides of the floating support platform 100, and a positioning pile installation block 120 is arranged in part or all of the platform connection interfaces 130 on one side of the floating support platform 100, and the positioning pile limiting groove is arranged on the positioning pile installation block 120. A platform connection block 800 is arranged between adjacent floating support platforms 100, and the two ends of the platform connection block 800 are respectively detachably fixedly connected to the platform connection interfaces 130 of the two adjacent floating support platforms 100. In actual engineering, a single floating support platform 100 should take into account its mobility, so its hull length is generally not particularly long, otherwise its actual navigation ability cannot meet the requirements. In this embodiment, multiple floating support platforms 100 can be temporarily connected to form a longer piling system, which can be flexibly combined according to the length of the dam breach for plugging, and has a wider range of applicability.

[0052] In the operation method of the dam breach plugging equipment of this embodiment, on the basis of Example 1, in step S1, first determine the number of floating support platforms 100 required according to the length of the dam breach, then move the first floating support platform 100 to a place close to one side of the dam, then perform step S1 to fix the first floating support platform 100, then move the second floating support platform 100 to one side of the first floating support platform 100, and detachably and fixedly connect the two ends of the platform connection block 800 to the platform connection interface 130 of the two floating support platforms 100, so that the two floating support platforms 100 are connected in sequence, then repeat the operation of fixing the floating support platform 100 in step S1 to fix the second floating support platform 100, and then repeat the above process until multiple floating support platforms 100 are connected and fixed end to end in sequence. The remaining steps are the same as in Example 1.

[0053] Example 3, refer to the attached Figure 8As shown, the operating method of the dam breach plugging equipment in this embodiment is based on Example 1 or Example 2, and in step S1, the following step is added: an "L"-shaped anti-collapse pile group 700 is installed at the corner position of the breach of the dams on both sides. The "L"-shaped anti-collapse pile group 700 is composed of a number of dam breach piles connected end to end, and the dam breach piles are inserted into the underwater soil layer by piling equipment. The advantage of this is that if the pre-inserted positioning piles 300 and the connecting row piles 400 are installed only according to the breach length at the beginning of the operation, during the repair process, the main river channel will continue to The corners of the dams on both sides are very likely to collapse due to scouring, so that the length of the breach will be expanded, the length of the original retaining wall will be insufficient, and the flood will still enter the breach from the new collapsed positions on both sides. Installing an "L"-shaped anti-collapse pile group 700 at the corner position can protect this position and avoid collapse during the repair process; at the same time, in step S3, the following step is added: fill the space between the "L"-shaped anti-collapse pile group 700 and the dam with embankment materials, and at the same time, before the floating support platform 100 leaves, remove the embankment anti-collapse piles of the "L"-shaped anti-collapse pile group 700.

[0054] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0055] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention by using the above technical solutions or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A dam breach sealing device, characterized in that: include: A floating support platform (100), wherein a plurality of positioning pile limiting grooves are arranged at intervals on one side of the floating support platform (100); If the pre-inserted positioning piles (300) are respectively slidably installed in the plurality of positioning pile limiting grooves, the pre-inserted positioning piles (300) include a pre-inserted pile body (310), and the outer side of the pre-inserted pile body (310) is respectively provided with a hull connecting slider (320), a pre-inserted pile connecting groove (340) and a pre-inserted pile connecting slider (330), and the hull connecting slider (320) is slidably connected to the positioning pile limiting groove; A plurality of connecting pile rows (400), wherein a plurality of connecting pile rows (400) are arranged between two adjacent pre-inserted positioning piles (300), wherein the connecting pile rows (400) comprise a pile row body (410), wherein the outer sides of the pile row body (410) are respectively provided with a pile row connecting groove (430) and a pile row connecting slider (420), wherein the pile row connecting groove (430) is matched with the pre-inserted pile connecting slider (330), and the pile row connecting slider (420) is matched with the pre-inserted pile connecting groove (340), and the pile row connecting grooves (430) and the pile row connecting sliders (420) between the plurality of connecting pile rows (400) are matched with each other.

2. A dam breach sealing device according to claim 1, characterized in that: A plurality of platform connection interfaces (130) are arranged on a circle of sides of the floating support platform (100), and a positioning pile installation block (120) is arranged in part or all of the platform connection interfaces (130) on one side of the floating support platform (100), and the positioning pile limiting groove is arranged on the positioning pile installation block (120).

3. A dam breach sealing device according to claim 2, characterized in that: There are a plurality of floating support platforms (100), and platform connection blocks (800) are provided between adjacent floating support platforms (100). Both ends of the platform connection block (800) are respectively detachably fixedly connected to the platform connection interfaces (130) of two adjacent floating support platforms (100).

4. A dam breach sealing device according to any one of claims 1 to 3, characterized in that: It also includes a pile body transfer and installation integrated machine (200) fixedly arranged on the floating support platform (100), the pile body transfer and installation integrated machine (200) including a rotating base, a pile body lifting device fixedly arranged on the rotating base, a pile driving device arranged on the upper part of the pile body lifting device, and a pile body storage bin (110) arranged below the pile body lifting device on the floating support platform (100).

5. The dam breach sealing device according to claim 1, characterized in that: It also includes a propeller (500), wherein the propeller (500) is arranged on one side of the floating support platform (100).

6. The dam breach sealing device according to claim 1, characterized in that: A pre-inserted pile positioning pin (150) is slidably arranged on one side of the positioning pile limiting groove, and a pile body positioning pin hole matching the pile body limiting pin is arranged on the outer side wall of the pre-inserted pile body (310).

7. The dam breach sealing device according to claim 1, characterized in that: Positioning pile holes (140) are respectively arranged at the left and right ends of the floating support platform (100), and platform positioning piles (600) are arranged in the platform positioning pile holes (140).

8. An operating method of the dam breach sealing device according to claims 1-7, characterized in that: The steps include: S1. In the preparation stage, the floating support platform (100) is moved to the breach of the dam by means of a thruster (500), and then the position of the floating support platform (100) is adjusted so that the side provided with the pre-inserted positioning piles (300) is close to the sealing position of the breach of the dam, and then the platform positioning piles (600) are inserted into the bottom soil layer, thereby completing the fixing of the floating support platform (100); S2. In the piling stage, the pre-inserted pile positioning pin (150) is pulled out from the pile body positioning pin hole of the pre-inserted positioning pile (300), and then the pre-inserted positioning piles (300) are inserted into the underwater soil layer in sequence by the piling equipment, and then a plurality of connected pile rows (400) are installed between two adjacent pre-inserted positioning piles (300). First, the first connected pile row (400) is hoisted and transported to the top of the two adjacent pre-inserted positioning piles (300) by using the pile body transfer and installation integrated machine (200), and then the first connected pile row (400) is controlled to move downward so that the pile row connection groove (430) of the connected pile row (400) is slidably assembled with the pre-inserted pile connection slider (330) of the first pre-inserted positioning pile (300), and then the remaining connected pile rows (400) are installed. ), controlling the pile body transfer and installation integrated machine (200) to slide and assemble the pre-inserted pile connection groove (340) of the next connected row of piles (400) and the row of pile connection slider (420) of the previous connected row of piles (400) together, and according to the above operation, assembling several connected rows of piles (400) in sequence between two adjacent pre-inserted positioning piles (300), wherein the row of pile connection slider (420) of the last connected row of piles (400) is slidably assembled with the pre-inserted pile connection groove (340) of the second pre-inserted positioning pile (300), and then inserting these connected rows of piles (400) into the underwater soil layer in sequence by means of a pile driving device, and then repeating the above process, and installing several connected rows of piles (400) between every two adjacent pre-inserted positioning piles (300); S3. During the dike repair phase, in step S2, a plurality of pre-inserted positioning piles (300) and a plurality of connecting pile rows (400) are connected to form a water-blocking wall. The dike breach is surrounded by the water-blocking wall and the dikes on both sides of the breach to form a nearly closed space. First, the water in the dike breach is pumped out, and then the dike building materials are filled in the space. After the dike building materials are constructed, the connecting pile rows (400) and the pre-inserted positioning piles (300) are sequentially pumped out from the underwater soil layer, the connecting pile rows (400) are transferred to the pile row storage bin, the pre-inserted pile positioning pins (150) are inserted into the pile body positioning pin holes of the pre-inserted positioning piles (300), and finally the platform positioning piles (600) are pumped out of the underwater soil layer, and the floating support platform (100) is free to leave.

9. A dam breach sealing method according to claim 8, characterized in that: In the step S1, when the breach in the dam is too long to be sealed by a single floating support platform (100), the number of floating support platforms (100) required is first determined based on the length of the breach in the dam, and then the first floating support platform (100) is moved close to one side of the dam, and then the step S1 is performed to fix the first floating support platform (100), and then the second floating support platform (100) is moved to the side of the first floating support platform (100), and the two ends of the platform connection block (800) are respectively detachably fixedly connected to the platform connection interfaces (130) of the two floating support platforms (100), so that the two floating support platforms (100) are connected in sequence, and then the operation of fixing the floating support platform (100) in the step S1 is repeated to fix the second floating support platform (100), and then the above process is repeated until the multiple floating support platforms (100) are connected end to end in sequence and fixed.

10. A dam breach sealing method according to any one of claims 8 or 9, characterized in that: In step S1, the following step is added: installing an "L"-shaped anti-collapse pile group (700) at the corner position of the breach of the dams on both sides, wherein the "L"-shaped anti-collapse pile group (700) is composed of a plurality of dam anti-collapse piles connected end to end, and the dam anti-collapse piles are inserted into the underwater soil layer by means of a pile driving device; in step S3, the following step is added: similarly filling the space between the "L"-shaped anti-collapse pile group (700) and the dam with embankment materials, and at the same time, removing the dam anti-collapse piles of the "L"-shaped anti-collapse pile group (700) before the floating support platform (100) leaves.

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