A pulling type dam breach plugging device and an application method thereof

Abstract

This invention discloses a pull-type dam breach sealing device, relating to the field of dam breach sealing technology. It includes a floating platform installed inside the dam breach and fixed columns driven vertically into both sides of the breach. The upper part of the fixed columns is fixed to the floating platform via connecting plates. Guide steel wire ropes are fixed to the fixed columns on both sides. A central rope is fixed to the middle of each guide steel wire rope, and the other end of the central rope is fixed to the floating platform. Soil and rock bags are looped around the guide steel wire ropes, and pull ropes are looped every 5-8 soil and rock bags. Soil and rock bags are also looped around the pull ropes, and the other end of each pull rope is fixed to the floating platform. When applied to dam breach sealing, this device does not require large equipment, has low construction costs, and provides good sealing results.

Description

Technical Field

[0001] This invention relates to the field of dam breach sealing technology, and in particular to a pull-type dam breach sealing device and its application method. Background Technology

[0002] Extensive research has been conducted on existing technologies. Chinese patent document (application number 202111642158.5) discloses a structurally stable and rapidly constructed safe method for sealing dike breaches. This includes piles connecting the dike ends on both sides of the breach, arranged in two parallel rows, with a traffic platform at the top of each pile. The dike body is sealed by sealing material thrown from the traffic platform onto the upstream and downstream sides of the piles. This invention also discloses a method for rapidly sealing dike breaches, constructing the aforementioned rapid breach sealing structure by first constructing the piles and traffic platform in a cyclical manner, and then sealing the dike body. This method is structurally stable, allows for rapid and safe construction, reduces labor input by over 80%, and increases sealing efficiency by over 30%. It can change the previous operation mode of using manual labor and dump trucks for sealing, effectively reducing the safety risks of breach sealing. Chinese patent document (application number 2017103284102) discloses an interception net for dam breaches and its construction method, comprising several steel piles, transverse connecting beams, steel pipes, and a curtain. Each steel pile is equipped with a mooring ring and two pre-drilled holes above it. Sleeves are installed near both ends of the transverse connecting beams, and a row of spiral sleeves is welded to one side wall of the transverse connecting beams. Two transverse connecting beams are sequentially fitted onto two steel piles, with the bottom of the lower transverse connecting beam pressing down on the mooring ring of the steel pile. Two support rods for limiting the two transverse connecting beams are inserted into the upper and lower pre-drilled holes, respectively. The upper and lower ends of the curtain are fitted onto the spiral sleeves of the upper and lower transverse connecting beams to form a unit interception net. Multiple unit interception nets are connected end to end to form the entire interception net. Construction is completed through steps such as driving in steel piles, assembling transverse connecting beams and steel piles, inserting steel pipes, and unfolding and fixing the curtain. This invention uses steel piles and steel cables to bear the load, has high bearing capacity and high strength, can effectively reduce the water flow velocity at the breach, is simple to construct, and can meet the emergency needs of dam breach rescue. The problem with the two existing technologies mentioned above is that they require pile driving or steel pile construction at the breach, which necessitates large-scale pile driving machinery, making construction difficult, time-consuming, and costly. Summary of the Invention

[0003] In view of this, the purpose of this invention is to address the shortcomings of the prior art by providing a pull-type dam breach sealing device that, when applied to dam breach sealing, does not require large equipment, has low construction costs, and high sealing efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pull-type dam breach sealing device includes a floating platform installed on the inner side of the dam breach and fixed columns driven vertically into both sides of the dam breach. The upper part of the fixed columns is fixed to the floating platform via connecting plates. Guide steel wire ropes are fixed on the fixed columns on both sides. A central rope is fixed in the middle of the guide steel wire ropes, and the other end of the central rope is fixed to the floating platform. Soil and stone bags are fitted on the guide steel wire ropes. Pull ropes are fitted every 5-8 soil and stone bags. The other end of the pull ropes is fixed to the floating platform. Soil and stone bags are fitted on both the pull ropes and the central rope.

[0006] Furthermore, the floating platform is made of steel pipes bound together longitudinally and laterally, with wooden planks fixed to the upper part of the steel pipes and floating barrels installed at the bottom.

[0007] Furthermore, the total length of the floating platform is 5m or more greater than the breach width, and the total length of the floating platform is ≤15m.

[0008] Furthermore, the opening of the soil and rock bag is provided with a loop for attaching it to the guide wire rope, the pulling rope, and the central rope.

[0009] Furthermore, the space between the floating platform (1) and the guide wire rope (4) is filled with sealing material, which is soil and stone bags, stones or building material waste, etc.

[0010] Furthermore, an auxiliary rope is provided on the pulling rope, and a soil and rock bag is provided on the auxiliary rope.

[0011] A method for applying a tension-type dam breach sealing device includes the following steps:

[0012] 1) Based on the width of the breach, design the length of the floating platform to be 5m or more greater than the width of the breach. Then, after the steel pipes are tied horizontally and vertically, lay wooden planks on them and fix them in place, and tie the floating barrels underneath.

[0013] 2) Drive anchor posts into the ground on both sides of the breach, with the anchor posts being ≥2m away from the edge of the breach. Use connecting plates to fix the floating platform to the anchor posts.

[0014] 3) Fix one end of the guide wire rope to the fixed post, and fix the middle part to the middle of the floating platform through the central rope. Drop soil and stone bags from the other end. For every 5-8 soil and stone bags dropped, attach a pulling rope to the guide wire rope and continue dropping soil and stone bags. Repeat this process until the soil and stone bags cover one end of the guide wire rope. Fix the end of the guide wire rope to the fixed post and repeat the above operation from the other end.

[0015] 4) Fix the other end of the pulling rope in step 3) to the floating platform. Drop soil and stone bags along the pulling rope. After every 5 soil and stone bags, loosen the pulling rope once until the soil and stone bags dropped by the pulling rope are above the water surface.

[0016] 5) Continue to fill the space between the floating platform and the guide wire rope with sealing material until the breach is sealed.

[0017] Further, in step 4), after fixing the other end of the pulling rope to the floating platform, drop earth and stone bags at a distance of more than 10m from the inside of the breach using an auxiliary rope. Then, attach a loop to the top of the auxiliary rope, attach the loop to the pulling rope, loosen the auxiliary rope, and continue dropping earth and stone bags along the pulling rope.

[0018] Furthermore, step 4) also includes attaching an auxiliary rope to every 10 bags of soil and stone placed on the pulling rope.

[0019] Furthermore, the number of soil and stone bags placed on the auxiliary rope is ≥10 bags, the middle of the first soil and stone bag is tied to the auxiliary rope, and the first soil and stone bag can only be filled to 1 / 3 to 2 / 3 of the woven bag capacity.

[0020] The beneficial effects of this invention are:

[0021] 1. This application discloses a tension-type dam breach sealing device. Specifically, it involves driving fixed posts into the dam at both ends of the breach, using steel pipes and floating buckets to secure a floating platform, fixing both ends of the platform to the fixed posts on either side of the breach. A central rope is tied to the middle of a guide wire rope, with the other end fixed to the floating platform. One end of the guide wire rope is then fixed to the fixed post, and the other end is used to attach earth-filled bags. Every 5-8 earth-filled bags, a tension rope is attached. After this, one end of the guide wire rope is fixed, and the process is repeated on the other end. The guide wire rope serves two purposes: guiding the tension rope and placing earth-filled bags on both the guide wire rope and the tension rope. This helps to quickly align the earth-filled bags at the breach, forming a relatively stable sealing structure and enabling rapid breach sealing. Then, sealing material is thrown into the middle to further stabilize the dam.

[0022] In addition, the floating platform of the tension-type dam breach sealing device can be assembled on site, and the soil and stone bags can also be filled and tied on site. The entire sealing operation does not require large mechanical structures, making it relatively easy to operate, simple to construct, low in cost, and effective in sealing.

[0023] 2. An auxiliary rope with soil and stone bags tied to it can be sunk into the water inside the breach and attached to the pulling rope. Then, more soil and stone bags can be dropped onto the pulling rope. This method helps to confine the pulling rope and soil and stone bags to the bottom of the water near the breach, thus enhancing the sealing effect.

[0024] 3. In the actual construction process, in order to further enhance the sealing effect, after about 5 soil and stone bags are dropped, the ends of the traction ropes fixed to the floating platform can be crossed every two adjacent ropes before dropping more soil and stone bags. This method creates a lateral force between adjacent traction ropes, increasing the sealing stability of the soil and stone bags.

[0025] In addition, during the actual sealing process, if the sealing effect is unstable after fixing a guide steel wire rope, several more sets of fixing posts can be driven in. The specific method is to drive several sets of fixing posts symmetrically outside the original fixing posts. Each set of fixing posts is fixed with a guide steel wire rope. The structure of the soil and stone bags and the pulling rope on each set is the same as the first set. The number of additional guide steel wire ropes can be increased or decreased according to the actual situation. This method can allow multiple guide steel wire ropes and soil and stone bags on them to be piled up layer by layer near the breach, enhancing the sealing effect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the binding structure of the floating platform 1 of the present invention;

[0028] Figure 3 This is a schematic diagram of the loop structure of a soil-rock bag;

[0029] Figure 4 Schematic diagram of the binding structure in the middle of the soil-filled stone bag;

[0030] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0031] In the diagram: 1-Floating platform, 2-Fixed column, 3-Connecting plate, 4-Guide wire rope, 5-Pull rope, 6-Soil bag, 7-Steel pipe, 8-Float, 9-Auxiliary rope, 10-Loop, 11-Central rope, 12-Reinforcing bar ring. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0033] Before using the sealing device of this application, the water flow rate at the breach is tested with soil and stone bags. The soil and stone bags can be made from materials obtained on site, such as woven bags filled with soil, sand or stones and then tied together. A soil and stone bag is tied with a pulling rope to test the water flow rate at the breach. If the soil and stone bag can sink smoothly to the bottom of the water near the breach, then the device and its method of use of this invention are applicable to the breach. Otherwise, the method of this application is not applicable. This application is applicable to breaches with a width of 10m or less.

[0034] like Figure 1As shown, A is the inner side of the dam at the breach, B is the outer side of the dam at the breach, and M and N are the two ends of the dam at the breach, respectively.

[0035] A tension-type dam breach sealing device, see Figure 1 It includes a floating platform 1 set inside the breach (A side) of the dam and fixed columns 2 driven vertically into both sides of the breach. The number of fixed columns is two in a symmetrical group, and multiple groups can be set. In this embodiment, there are two groups of fixed columns, which are used to firmly fix the floating platform 1.

[0036] The floating platform 1 frame structure is constructed by binding steel pipes 7 longitudinally and laterally with wire, and wooden planks are tied side-by-side to the upper part of the steel pipes 7. A float 8 is installed at the bottom of the steel pipes 7; in this embodiment, the float 8 is an empty oil drum. Steel rings 12 are welded to the upper edge of the float 8, and the float 8 is then tied side-by-side to the bottom of the steel pipes 7 using the steel rings 12 (e.g., ...). Figure 2 As shown in the figure, a floating platform 1 is formed.

[0037] The upper part of the fixed posts 2 on both sides is fixed to the floating platform 1 by connecting plates 3 (by binding with iron wire). A guide steel wire rope 4 is fixed on a set of fixed posts 2. The guide steel wire rope 4 can be a steel wire rope with a diameter of 13-20mm. In this embodiment, a 15mm steel wire rope is selected because it has higher strength. A central rope 11 is fixed in the middle of the guide steel wire rope 4. The other end of the central rope 11 is fixed in the middle of the floating platform 1. Soil and stone bags 6 are put on the guide steel wire rope 4. Every 5 soil and stone bags 6, a pulling rope 5 is put on. Soil and stone bags 6 are also put on the pulling rope 5 and the central rope 11. The other end of the pulling rope 5 is fixed to the floating platform 1. The central rope 11 and the pulling rope 5 can be made of nylon rope.

[0038] The bag contains 6 soil and stone bags, with 10 loops used for tying the openings. Figure 3 As shown, the specific operation involves tying a loop 10 to the opening of the soil and rock bag 6 with 5-8mm nylon rope. This loop is used to attach the bag to the guide wire rope 4, the pulling rope 5, and the central rope 11, allowing it to slide along these ropes. One end of the pulling rope 5 is also tied into a loop structure for attaching to the guide wire rope 4, and it can also move along the guide wire rope 4.

[0039] The space between the floating platform 1, the pulling rope 5 and the guide wire rope 4 is filled with sealing material, which can be earth and stone bags 6, stones or construction waste, etc., and can be sourced from the construction site.

[0040] A method for applying a tension-type dam breach sealing device includes the following steps:

[0041] 1) Based on the breach width, the length of the floating platform 1 should be ≥5m longer than the breach width. In this embodiment, the breach width is 10m and the floating platform length is 15m. Then, as follows... Figure 2 As shown, steel pipe 7 is tied horizontally and vertically with wire, then wooden planks are laid on top, and floating buckets 8 are tied underneath.

[0042] 2) Two fixed posts 2 are driven into the ground on both sides of the breach. The driving depth of the fixed posts 2 is selected according to the actual situation. For example, if the soil is relatively compact, the driving depth is ≥1.0m, generally between 1-1.5m. If the soil is loose, the driving depth is ≥1.5m, generally between 1.5-2m. In this embodiment, the driving depth is 1m. The fixed posts 2 are ≥2m away from the edge of the breach. In this embodiment, the inner fixed post 2 is 2m away from the edge of the breach. The floating platform 1 is fixed to the fixed posts 2 on both sides by the connecting plate 3.

[0043] 3) Fix one end of the guide wire rope 4 to the fixed post 2 at the M end, and fix the middle part to the middle of the floating platform through the central rope 11. Drop the soil and rock bags 6 from the other end N of the guide wire rope 4 (the loop 10 on the soil and rock bags 6 can be put on the guide wire rope 4 and slid down). During the dropping process, continuously loosen the guide wire rope 4. Every 5-8 bags (5 bags in this embodiment) of soil and rock bags 6 are dropped, a pulling rope 5 is attached to the guide wire rope 4 (that is, the pulling rope 5 can slide along the guide wire rope 4). Repeat this process until the soil and rock bags 6 fill the N end of the guide wire rope 4. Fix the end of the guide wire rope 4 (N end) to the fixed post 2 at the corresponding N end. Repeat the above operation from the other end (M end).

[0044] 4) Fix the other end of all the pulling ropes 5 evenly on the floating platform 1, and drop the soil and stone bags 6 along the pulling ropes 5 (put the loops 10 on the soil and stone bags 6 on the pulling ropes 5 and let them slide down). Two pulling ropes 5 can be dropped at the same time, and every time 5 soil and stone bags 6 are dropped, loosen the pulling ropes 5 once until the soil and stone bags 6 dropped on the pulling ropes 5 are exposed above the water surface.

[0045] 5) Continue to fill the space between the floating platform 1 and the guide wire rope 4 with soil and rock bags 6 or other sealing materials to further reinforce the dam until the breach is sealed.

[0046] The above application method was applied to the sealing of a breach with a top width of 10m, a bottom width of 7.2m, and a water depth of 2.5m. No large machinery was used; all operations were carried out manually, and all sealing materials were earth-stone bags. The floating platform was 15m long, and the inner fixed column 2 was 2m away from the edge of the breach. The fixed column was driven into the water to a depth of 1.0m. During the construction process, the guide steel wire rope 4 and the pulling rope 5 after the earth-stone bags were installed were able to remain stable in the water flow. A total of about 2327 earth-stone bags 6 were required for the entire breach sealing process, which achieved a very good sealing effect.

[0047] In different sealing construction sites, the floating platform can be bundled and transported to the site in advance. The space between the floating platform 1 and the guide steel wire rope 4 can be filled with other sealing materials, such as stones and construction waste on site, which can reduce the amount of soil and stone bags used, reduce labor and operation time.

[0048] In actual construction, in order to further enhance the sealing effect of this application, in step 4), every 5 bags of soil and rock 6 are placed on the pulling rope 5, the positions of adjacent pulling ropes 5 can be crossed once. The specific operation method is: cross every two adjacent pulling ropes 5 fixed at one end of the floating platform, then temporarily fix them, and continue to place the soil and rock bags 6. This method increases the lateral force between the pulling ropes, thereby increasing stability. Example 2

[0049] To increase the stability of the guide wire rope 4, in Example 2, after the other ends of multiple pulling ropes 5 are fixed to the floating platform 1 in step 4) of Example 1, at a distance of more than 10m from the inside of the breach (10m in this example), ≥10 soil and rock bags 6 are dropped via auxiliary rope 9. The specific dropping method is as follows: the middle of the first soil and rock bag 6 is tied to the auxiliary rope 9, such as... Figure 4 As shown, the first bag of soil and rock 6 is only filled to 1 / 3 to 2 / 3 of the woven bag's capacity. The remaining bags of soil and rock 6 are connected to the auxiliary rope 9 via a loop at the top. The total number of bags of soil and rock is ≥10 bags, and in this embodiment, it is 10 bags. Then, the auxiliary rope 9 is tightened, and a loop is attached to the other end of the auxiliary rope 9. The loop is then connected to a pulling rope 5. The auxiliary rope 9 is loosened, and the bags of soil and rock 6 are continued to be dropped along the pulling rope 5, thereby pressing the pulling rope 5 and the auxiliary rope 9 to the bottom of the water. Figure 5 As shown, this method helps to fix the soil and rock bags 6 placed at the breach near the breach and reduce the stress on the guide wire rope 4.

[0050] Additionally, for every 10 soil and rock bags 6 dropped onto the pull rope 5, an auxiliary rope 9 can be placed on that pull rope 5. This process is repeated, and each pull rope 5 at the breach is secured using this method. This method effectively stabilizes the positions of the pull ropes and soil and rock bags near the breach, enhancing the sealing effect.

[0051] Depending on the needs of the sealing site, multiple sets of fixed posts can be driven in, with a lateral distance of 0.5m between adjacent fixed posts, all on a horizontal line. A guide steel wire rope can be fixed on each set of fixed posts. The operation method is according to steps 3)-4), so that the soil and stone bags at the breach are piled up layer by layer, and roughly piled up near the guide steel wire rope, making it less likely for gaps to appear in the pile.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A tension-type dam breach sealing device, characterized in that: The system includes a floating platform (1) set inside the breach of the dam and fixed columns (2) driven vertically into both sides of the breach. The upper part of the fixed columns (2) is fixed to the floating platform (1) through a connecting plate (3). Guide steel wire ropes (4) are fixed on the fixed columns (2) on both sides. A central rope (11) is fixed in the middle of the guide steel wire rope (4). The other end of the central rope (11) is fixed to the floating platform (1). Soil and stone bags (6) are fitted on the guide steel wire rope (4). Pulling ropes (5) are fitted every 5-8 soil and stone bags (6). The other end of the pulling ropes (5) is fixed to the floating platform (1). Soil and stone bags (6) are fitted on both the pulling ropes (5) and the central ropes (11). The space between the floating platform (1) and the guide wire rope (4) is filled with sealing material, which is a soil and stone bag (6), stone or building material waste; The soil and rock bag (6) has a loop (10) at its opening for attaching it to the guide wire rope (4), the pulling rope (5) and the center rope (11).

2. The pull-type dam breach sealing device according to claim 1, characterized in that: The floating platform (1) is made of steel pipes (7) tied together longitudinally and laterally. The upper part of the steel pipes (7) is fixed with wooden boards and the bottom is equipped with a floating barrel (8).

3. A pull-type dam breach sealing device according to claim 2, characterized in that: The difference between the total length of the floating platform and the width of the breach is ≥5m, and the total length of the floating platform is ≤15m.

4. A pull-type dam breach sealing device according to claim 3, characterized in that: An auxiliary rope (9) is installed on the pulling rope (5), and a soil and stone bag (6) is installed on the auxiliary rope (9).

5. A method for applying the tension-type dam breach sealing device as described in claim 4, characterized in that: Includes the following steps: 1) Based on the breach width, design the total length of the floating platform to be ≥5m different from the breach width. Then, after the steel pipe (7) is tied horizontally and vertically, lay wooden boards on it and fix it, and tie the floating barrel (8) below. 2) Drive fixed columns (2) into the ground on both sides of the breach. The fixed columns (2) are ≥2m away from the edge of the breach. The floating platform (1) is fixed to the fixed columns (2) by connecting plates (3). 3) Fix one end of the guide wire rope (4) to the fixed post (2), and fix the middle part to the middle of the floating platform (1) through the central rope (11). Drop soil bags (6) from the other end. For every 5-8 soil bags (6) dropped, attach a pulling rope (5) to the guide wire rope (4). Continue dropping soil bags (6) and repeat the cycle until the soil bags (6) cover one end of the guide wire rope (4). Fix the end of the rope to the fixed post (2) and repeat the above operation from the other end. 4) Fix the other end of the pulling rope (5) in step 3) to the floating platform (1), and drop soil bags (6) along the pulling rope (5). After dropping 5 soil bags (6), loosen the pulling rope (5) once until the soil bags (6) dropped by the pulling rope (5) are exposed above the water surface. 5) Continue to fill the space between the floating platform (1) and the guide wire rope (4) with sealing material until the breach is sealed.

6. The application method of the tension-type dam breach sealing device according to claim 5, characterized in that: Step 4) After fixing the other end of the pulling rope (5) to the floating platform (1), drop the soil and stone bags (6) through the auxiliary rope (9) at a distance of more than 10m from the inside of the breach. Then, attach a loop to the top of the auxiliary rope (9), attach the loop to the pulling rope (5), loosen the auxiliary rope (9), and continue to drop the soil and stone bags (6) along the pulling rope (5).

7. The application method of the tension-type dam breach sealing device according to claim 6, characterized in that: Step 4) also includes attaching an auxiliary rope (9) to every 10 bags of soil and stone (6) placed on the pulling rope (5).

8. The application method of the tension-type dam breach sealing device according to claim 6, characterized in that: The number of soil and stone bags (6) placed on the auxiliary rope (9) is ≥10 bags. The middle of the first soil and stone bag (6) is tied to the auxiliary rope (9). The first soil and stone bag (6) can only be filled to 1 / 3 to 2 / 3 of the capacity of the woven bag.

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