A rapid embankment breach occupation method based on blocking coordination

Abstract

A method for rapidly occupying a dike breach based on blocking coordination, comprising the following steps: 1) using rocket drilling anchors to form an anchor array at a set breach position, sliding steel mesh gabions through anchor cables, then implanting steel pipe piles on the river side of the steel mesh gabions, and throwing geobags into the gaps of the steel mesh gabions to rapidly construct an anti-scouring rock head; 2) throwing stones and soil into the gaps between the steel pipe piles to create a construction site for throwing soft-body rafts, throwing multiple soft-body rafts onto the river side of the steel pipe piles, connecting and fixing the soft-body rafts with shore fixed piles and steel pipe piles using ropes, and filling stones and soil on the upper part of the soft-body rafts when the soft-body rafts are at a certain height from the water surface to form an anti-scouring body for flow reduction and buffering; 3) throwing a large net bag to form a dike breach occupation blocking body based on blocking coordination, thereby realizing rapid occupation of the dike breach. The present invention is based on rocket drilling anchor and vibratory pile planting equipment, and combines the advantages of various dike breach occupation technologies. It has the characteristics of rapid response to dike breach occupation, adaptability to breaches of different types and sizes, high stability, strong durability, etc.

Description

Technical Field

[0001] The present invention belongs to the technical field of dike breach and dike head occupation, relates to a dike breach occupation method, and particularly to a dike breach rapid occupation method based on blocking coordination. Background Art

[0002] As an important part of sealing the dike breach, the rapid construction of a stable occupation body can not only protect the water flow from eroding the dike head and prevent the dike head from collapsing, but also create favorable conditions for the subsequent closure and sealing.

[0003] Traditional breach entry and occupation technologies are mainly divided into vertical blocking, flat blocking and mixed blocking technologies. Compared with flat blocking and mixed blocking, vertical blocking has the advantages of low cost and high blocking efficiency, and is widely used. Among them, the dredging technique is a typical technique of vertical blocking. This technology has been improved through summarizing a large amount of practical experience. The materials used are easy to obtain locally and have a certain degree of elasticity. The entire dredging body has the ability to adapt to deformation and can play a role in alleviating water flow impact and blocking water flow. However, dredging technology requires sufficient preparation of materials, strong technical requirements for personnel operation, and slow construction speed. Historically, dredging has been used after the flood season. Therefore, when plugging during the flood season, it is difficult to achieve rapid entry and occupation of the dike breach directly using dredging technology. In recent years, some researchers have proposed the use of geobag and wire mesh gabion occupation technology, and used the Isbohi sediment starting formula to conduct stability analysis on single geobag and wire mesh gabion, and calculated the minimum stable volume and mass of geobag and wire mesh gabion required for different flow rates. Through experiments and numerical simulation analysis, it was found that under conditions of high flow rate and large flow, the use of geobag and wire mesh gabion occupation technology has higher requirements on the weight and volume of geobag and wire mesh gabion, which increases the difficulty of packaging and throwing, and reduces the efficiency of breach occupation.

[0004] With the rapid development of social economy and the progress of science and technology, new levee breach entry equipment has attracted much attention from researchers. Compared with traditional breach entry equipment, advanced breach entry equipment has played a huge role in promoting the rapid entry of breaches, achieving the purpose of improving efficiency, saving investment and reducing labor intensity. Henan Yellow River River Administration has improved the traditional entry technology, developed mechanized operation technologies such as box pillows, willow stone box, and willow stone mixed, and carried out emergency rescue application research on large machinery in the Yellow River flood control. The results show that the new sluice construction technology using large machinery for entry has made a new breakthrough in the traditional sluice breach entry technology; in 2005, the U.S. Army Corps of Engineers used helicopters to drop large sandbags to close Canal No. 17; in 2013, Germany used a combination of shipwrecks and helicopters dropping large stone bags to seal levee breaches; steel sheet pile river and lake levee plugging construction methods, proposed the use of pile planting equipment with fast construction speed and high efficiency, formed an entry body based on steel sheet piles, and realized rapid entry of levee breaches. In addition, steel-wood-earth-rock composite dam technology has also been applied to breaches such as the Jiujiang levee.

[0005] To sum up, how to organically combine new engineering materials such as geobags and wire mesh gabions with traditional materials to form a larger whole for occupation to resist the impact of water flow, and at the same time, use advanced mechanized equipment to improve the efficiency and speed of embankment breach occupation, is the key technology to achieve rapid occupation of the breach. Summary of the invention

[0006] The purpose of the present invention is to provide a method for quickly occupying a dike breach based on rocket-drilled anchors and vibratory pile planting technology.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A method for rapid occupation of dike breaches based on blocking coordination, which uses rocket-drilled anchors to form an anchor array at the set position of the breach, and slides steel mesh gabions through anchor cables. Steel pipe piles are implanted on the river side of the steel mesh gabions, and geobags are thrown into the gaps of the steel mesh gabions based on the steel pipe piles to quickly build an anti-scouring rock head; secondly, stones and soil are thrown into the gaps between the steel pipe piles to create a construction site for throwing soft-body rafts, and multiple soft-body rafts are thrown to the river side of the steel pipe piles, and the soft-body rafts are connected and fixed to the shore fixed piles and steel pipe piles with ropes. When the soft-body raft is a certain distance away from the water surface, stones and soil are filled on the upper part of the soft-body raft to form an anti-scouring body for flow reduction and buffering; finally, a large net bag is thrown to form a dike breach occupation blocking body based on blocking coordination, so as to achieve rapid occupation of the dike breach. Specifically, the following steps are included:

[0009] (1) Site leveling: Arrange the construction site, level the site, repair the construction road, clear obstacles and cut slopes on the shore, and create favorable conditions for emergency equipment and materials to enter the construction site.

[0010] (2) Build a head wrap: Throw large net bags on the dike heads on both sides of the breach to build a head wrap to prevent further collapse of the broken dike head and provide a stable site for subsequent occupation.

[0011] (3) Anti-scouring rockheads are formed upstream on both sides of the embankment breach: the rocket drilling anchor is launched to the set position using a rocket drilling anchor launcher, the anchor cable is connected to the fixed pile on the shore, and the steel mesh gabion is slid along the anchor cable to the predetermined position of the breach with the help of a hook. Subsequently, a vibratory pile-driving device is used to plant steel pipe piles on the back side of the steel mesh gabion, and geobags are thrown into the gaps between the steel mesh gabion based on the steel pipe piles to construct an anti-scouring rockhead.

[0012] (4) Place soft-shell rafts on the riverside behind the steel pipe piles: throw stones and soil into the gaps between the steel pipe piles to create a construction site for throwing the soft-shell rafts. Place multiple soft-shell rafts on the riverside behind the steel pipe piles and use ropes to connect and fix the soft-shell rafts to the fixed piles and steel pipe piles on the shore. When the soft-shell rafts are 1.5m to 2.5m away from the water surface, fill the upper part of the soft-shell rafts with stones and soil to form an anti-impact body that reduces flow and buffers.

[0013] (5) Throwing large net bags: Relying on the completed anti-impact body, large net bags are thrown to both sides of the breach at the same time to form a barrier to block the breach of the dike in a coordinated and integrated operation.

[0014] (6) Repeat steps (3) to (5), gradually advancing from both sides of the breach to the center of the breach until a width suitable for closure is reached.

[0015] Furthermore, the diameter and length of the anchor cable are determined according to the anchoring position set by the rocket drilling anchor and the hydraulic conditions of the breach, and the material is steel wire.

[0016] Furthermore, the steel pipe pile has a diameter of 30 cm to 35 cm and a length of 12 m to 20 m.

[0017] Furthermore, the soft row is composed of an upper mud-filled tube bag, a lower air-filled tube bag and a middle geotextile. When in use, the air-filled tube bag is first inflated using an inflation door, and the soft row is connected to the shore fixed piles and steel pipe piles by passing a rope through the hollow rivets arranged on the geotextile, the soft row is thrown and fixed, and a mud pump is used to fill the mud-filled tube bag with mud through the filling port, and the air in the air-filled tube bag is released in a controlled manner through the exhaust valve, and the rope is gradually loosened until the soft row completely sinks to the bottom of the breach, and then the rope is tied; the air-filled tube bag is arranged vertically to the mud-filled tube bag, and the air-filled tube bag is placed along the direction of the water flow; the mud-filled tube bag is 12m long, 1.5m wide and 0.6m high; the air-filled tube bag is 1m in diameter and 6m in length; the shore fixed pile is 10cm to 15cm in diameter and 2m to 3m in length.

[0018] Furthermore, the soft-shell drainage method can also be achieved by placing explosives on the inflatable tube bag; an anti-drop hook is provided at both the front and rear ends of the inflatable tube bag installation position to hang the lifting ring on the inflatable tube bag; the position of the inflation valve is opposite to the position of the exhaust valve.

[0019] Furthermore, the width of the wrapping head is 15m to 20m, the width of each entry body is 12m to 15m, the total width is determined according to the conditions for the actual breach to be closed, and the height of the wrapping head and the entry body is 1m to 2m above the water surface.

[0020] Beneficial effects of the present invention:

[0021] (1) The steel mesh gabion of the present invention has the characteristics of simple structure and fast construction speed. The anchor array formed by the rocket drilling anchor can make the steel mesh gabion slide quickly to the set position of the breach, and the rocket anchor can improve the anchoring force of the steel mesh gabion and increase the stability of the steel mesh gabion in the water flow. At the same time, the steel pipe piles implanted on the river side of the steel mesh gabion can better support the geobags thrown between the steel mesh gabions, thereby quickly forming a flow reduction and buffering anti-collision rock head, creating favorable conditions for the placement of soft-body rows and subsequent plugging bodies.

[0022] (2) The soft-body raft of the present invention has the advantages of good integrity, light weight, high strength, easy transportation, and convenient and quick construction. At the same time, laying the soft-body raft on the back river side of the anti-scouring rock head is conducive to the layout of the soft-body raft in the breach water flow, and connecting the soft-body raft with the shore fixed piles and steel pipe piles by ropes can further ensure the stability of the soft-body raft in the water flow.

[0023] (3) The rocket drilling anchor and vibratory pile planting equipment used in the present invention can quickly reach the rescue site and carry out rapid construction. At the same time, the materials used in the occupation body have the advantages of being locally available, easy to package and throw.

[0024] In summary, the present invention organically combines rocket drilling anchors, vibro-pile technology and traditional plugging materials to form a barrier coordinated integrated entry body that has the characteristics of integrity, strong stability and efficient construction, thereby achieving the purpose of rapid entry into the dike breach. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the construction arrangement of the present invention when the breach flow velocity is less than 3m / s;

[0026] Figure 2 This is the first stage plan layout diagram of the present invention where the breach flow velocity is less than 3m / s;

[0027] Figure 3 This is a first-stage downstream elevation view of the present invention where the breach flow velocity is less than 3 m / s;

[0028] Figure 4 This is the second stage plan layout diagram of the present invention where the breach flow velocity is less than 3m / s;

[0029] Figure 5 This is a downstream elevation view of the second stage of the present invention where the breach flow rate is less than 3m / s;

[0030] Figure 6 This is a schematic diagram of the construction arrangement of the present invention when the breach flow velocity is greater than 3m / s;

[0031] Figure 7 This is a schematic diagram of the rocket drilling anchor structure used in the present invention;

[0032] Figure 8 This is a schematic diagram of the hook structure used in the present invention;

[0033] Fig. 9 A top view of the software arrangement in the present invention;

[0034] Fig.10 This is a cross-sectional view of the soft drainage device used in the present invention along the water flow direction;

[0035] Fig.11 It is a cross-sectional view of the soft body row in the present invention in the direction perpendicular to the water flow;

[0036] In the figure: 1 top of the embankment, 2 wrapping head, 3 steel mesh gabion, 4 steel pipe piles, 5 anchor cables, 6 fixed piles, 7 rocket drill anchors, 8 geobags, 9 stones and soil, 10 ropes, 11 soft row, 12 large net bag, 13 hooks, 14 bottom of the breach, 111 geotextile, 112 mud-filled pipe bags, 113 inflatable pipe bags, 114 hollow rivets, 115 slurry filling port, 116 anti-drop hook, 117 lifting ring, 118 exhaust valve. DETAILED DESCRIPTION

[0037] Combine the following Figure 1-Figure 11 , a method for rapid occupation of embankment breach based on blocking coordination of the present invention is described in detail.

[0038] A method for rapidly occupying a dike breach based on blocking coordination of the present invention comprises the following steps:

[0039] (1) Site leveling: Figure 1-Figure 6 As shown, the construction site is arranged, the site is leveled, the construction road is repaired, obstacles are cleared and slopes are cut on the shore, creating favorable conditions for emergency equipment and materials to enter the construction site.

[0040] (2) Construction of the head wrap 2: Figure 1-Figure 6As shown, materials such as rocks and earth bags are filled into a large net bag 12, and the large net bag 12 is thrown from the top of the embankment 1 on both sides of the breach using bulldozers, excavators, loaders and other equipment to build a wrap 2 to prevent further collapse of the broken embankment head and provide a stable site for subsequent occupation. In this embodiment, the wrap 2 is 2m above the water surface and has a width of 15m.

[0041] (3) Form anti-scouring rock heads upstream on both sides of the embankment breach: Figure 1-Figure 6 As shown, rocket drilling anchors 7 are installed at the rescue site on both sides of the embankment breach, and steel mesh gabions 3 are assembled. The rocket drilling anchors 7 are launched to the set position with the help of a rocket drilling anchor launcher, and the anchor cables 5 are fastened to the fixed piles 6 on the shore. The steel mesh gabions 3 are slid along the anchor cables 5 to the predetermined position of the breach with the help of hooks 13. Subsequently, a row of steel pipe piles 4 are implanted on the back river side of the steel mesh gabions 3 along the direction perpendicular to the water flow using vibratory pile drivers arranged on both sides of the breach. While the piles are being implanted, the geobags 8 are packaged. Subsequently, relying on the steel pipe piles 4, excavators, bulldozers and other equipment are used to throw the geobags 8 into the gaps of the steel mesh gabions 3 to construct an anti-collision rock head.

[0042] In this embodiment, when the water flow velocity is less than 3m / s, an "I"-shaped anti-scouring rock head is formed. When the water flow velocity is greater than 3m / s, an anti-scouring rock head is formed at an angle of 30° to the upstream side of the breach horizontal plane. The diameter and length of the anchor cable 5 are determined according to the anchor position set by the rocket drilling anchor 7 and the hydraulic conditions of the breach. The material is steel wire. The steel pipe pile 4 has a diameter of 30cm and a length of 15m. The schematic diagram of the structure of the rocket drilling anchor 7 is as shown in Figure 7 As shown, the structural diagram of the hook 13 is as follows Figure 8 shown.

[0043] (4) Place soft material row 11 on the river side of steel pipe pile 4: Figure 1-Figure 6As shown, an excavator or loader is used to put stones and soil 9 into the gaps between the steel pipe piles 4 to create a construction site for throwing the soft row 11, and an inflatable tube bag 113 is inflated by an inflatable door. The soft row 11 is connected to the shore fixed pile 6 and the steel pipe pile 4 through the hollow rivet 114 arranged on the geotextile 111 through the rope 10, and then the soft row 11 is thrown to the back side of the steel pipe pile 4, so that the soft row 11 floats on the water surface and the soft row 11 is fixed. A mud pump is used to fill the mud filling tube bag 112 with mud through the filling port 115, and the air in the air filling tube bag 113 is released in a controlled manner through the exhaust valve 118, and the rope 10 is gradually loosened until the soft-body row 11 completely sinks to the bottom of the breach 14, and then the rope 10 is tied and the above steps are repeated. When the soft-body row 11 is 1.5m away from the water surface, stones and soil 9 are filled on the upper part of the soft-body row 11 until it exceeds the water surface by 2m, thereby forming an anti-impact body for flow reduction and buffering. In this embodiment, the mud-filled pipe bag 112 is 12m long, 1.5m wide and 0.6m high; the inflatable pipe bag 113 is 1m in diameter and 6m in length; the shore fixed pile 6 is 15cm in diameter and 2m in length. The inflatable pipe bag 113 is arranged vertically to the mud-filled pipe bag 112, and the inflatable pipe bag 113 is placed along the direction of the water flow. The sinking method of the soft row 11 can also be achieved by placing explosives on the inflatable pipe bag 113. An anti-drop hook 116 is provided at both ends of the front and rear ends of the position where the inflatable pipe bag 113 is installed, which is used to hang the ring 117 on the inflatable pipe bag 113. The position of the inflation valve is opposite to the position of the exhaust valve 118. The top view of the soft row 11 Fig. 9 As shown, the cross-sectional view of the soft body row 11 along the water flow direction is as follows Fig.10 As shown, the cross-sectional view of the soft body row 11 perpendicular to the water flow direction is as follows Fig.11 shown.

[0044] (5) Throwing a large net bag 12: Figure 1 , Figure 6 As shown, relying on the completed anti-impact body, large net bags 12 are thrown to both sides of the breach at the same time to form a dyke breach-blocking and coordinated integrated operation.

[0045] (6) Repeat steps (3) to (5), gradually advancing from both sides of the breach to the center of the breach until a width suitable for closure is reached. In this embodiment, the width of each occupied body is 12m, 2m above the water surface, and the total width is determined according to the actual conditions for the breach to be closed.

[0046] The above-described embodiments merely express the implementation methods of the present invention, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for rapid occupation of dike breach based on blocking coordination, characterized in that: The following steps are involved: Firstly, a rocket drilling anchor (7) is used to form an anchor array at the breach setting position, and a steel mesh gabion (3) is slid through an anchor cable (5), and a steel pipe pile (4) is implanted on the river side of the steel mesh gabion (3), and a geobag (8) is thrown into the gap of the steel mesh gabion (3) based on the steel pipe pile (4) to construct an anti-collision rock head; secondly, stones and soil (9) are thrown into the gaps between the steel pipe piles (4), and a plurality of soft rows (11) are placed on the river side of the steel pipe piles (4), and the soft rows (11) are composed of a mud-filled pipe bag (112) on the upper layer, The invention is composed of a lower layer of inflatable tube bags (113) and a middle layer of geotextile (111), and a plurality of soft rows (11) are arranged horizontally in sequence along the height direction, and the soft rows (11) are connected and fixed to shore fixed piles (6) and steel pipe piles (4). When the soft rows (11) are a certain distance away from the water surface, stones and soil (9) are filled on the upper part of the soft rows (11) to form an anti-impact body for flow reduction and buffering; finally, a large net bag (12) is thrown to form a dike breach blocking body based on blocking coordination, so as to achieve rapid occupation of the dike breach.

2. A method for rapid occupation of dike breaches based on blocking coordination, characterized in that: The following steps are involved: (1) The site is level; (2) Building a wrap (2): Throw a large net bag (12) at the dike head on both sides of the breach to build a wrap (2) to prevent the broken dike head from further collapsing and provide a stable site for subsequent occupation; (3) forming anti-scouring rockheads at the upstream of both sides of the breach of the dike: launching a rocket drilling anchor (7) to a set position, connecting the anchor cable (5) to the shore fixed pile (6), sliding the steel mesh gabion (3) along the anchor cable (5) to the predetermined position of the breach through a hook (13), then implanting a steel pipe pile (4) on the back side of the steel mesh gabion (3), and relying on the steel pipe pile (4) to throw a geobag (8) into the gap of the steel mesh gabion (3), so as to construct an anti-scouring rockhead; (4) placing a soft material row (11) on the river side of the steel pipe pile (4): placing stones and soil (9) between the gaps of the steel pipe pile (4) to create a construction site for throwing the soft material row (11), then placing multiple soft material rows (11) on the river side of the steel pipe pile (4), and connecting and fixing the soft material row (11) to the shore fixed pile (6) and the steel pipe pile (4) with ropes (10). When the soft material row (11) is 1.5m to 2.5m away from the water surface, filling stones and soil (9) on the upper part of the soft material row (11) to form an anti-impact body for flow reduction and buffering; (5) Throwing a large net bag (12): Based on the completed anti-impact body, a large net bag (12) is thrown to both sides of the breach simultaneously to form a body to block the breach of the dike for coordinated integrated operation; (6) Repeat steps (3) to (5), gradually advancing from both sides of the breach to the center of the breach until a width suitable for closure is reached.

3. A method for rapid embankment breach occupation based on blocking coordination according to claim 2, characterized in that: The diameter and length of the anchor cable (5) are determined according to the anchoring position set by the rocket drilling anchor (7) and the hydraulic conditions of the breach, and the material is steel wire.

4. The method for rapid embankment breach occupation based on blocking coordination according to claim 2 is characterized in that: The steel pipe pile (4) has a diameter of 30 cm to 35 cm and a length of 12 m to 20 m.

5. The method for rapid embankment breach occupation based on blocking coordination according to claim 2 is characterized in that: When the soft row (11) is used, the inflatable tube bag (113) is first inflated by using the inflatable door, the soft row (11) is connected to the shore fixed pile (6) and the steel pipe pile (4) by passing the rope (10) through the hollow rivet (114) arranged on the geotextile (111), the soft row (11) is thrown and fixed, the mud filling tube bag (112) is filled with mud through the mud filling port (115), the air in the inflatable tube bag (113) is controlled to be released through the exhaust valve (118), and the rope (10) is gradually loosened until the soft row (11) completely sinks to the bottom of the breach (14), and then the rope (10) is tied.

6. A method for rapid embankment breach occupation based on blocking coordination according to claim 5, characterized in that: The mud-filled pipe bag (112) has a length of 12m, a width of 1.5m and a height of 0.6m; the air-filled pipe bag (113) has a diameter of 1m and a length of 6m; the shore fixing pile (6) has a diameter of 10cm-15cm and a length of 2m-3m.

7. The method for rapid embankment breach occupation based on blocking coordination according to claim 2 is characterized in that: The width of the wrapping head (2) is 15m-20m, the width of each of the occupying bodies is 12m-15m, and the total width is determined according to the conditions for the actual breach to be closed. The height of the wrapping head and the occupying body is 1m-2m above the water surface.

8. The method for rapid embankment breach occupation based on blocking coordination according to claim 5 is characterized in that: The soft row (11) is sunk by placing explosives on an inflatable tube bag (113); an anti-drop hook (116) is provided at both the front and rear ends of the position where the inflatable tube bag (113) is installed, which is used to hang a ring (117) on the inflatable tube bag (113); the position of the inflatable valve is opposite to the position of the exhaust valve (118).

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