Dike breach dynamic blocking and plugging structure and method based on rocket anchors and steel pipe piles

Abstract

The invention discloses an embankment breach dynamic blocking and plugging structure and method based on rocket anchors and steel pipe piles, and relates to the technical field of hydraulic engineering, the embankment breach dynamic blocking and plugging structure comprises a broken embankment head, an embankment head wrapping and protecting structure, a rocket anchor-steel mesh gabion slow flow structure and a steel pipe pile entering and occupying core structure, and the embankment head wrapping and protecting structure is arranged at the end of the broken embankment head; the rocket anchor-steel mesh gabion slow flow structure is arranged at the front end of the embankment head wrapping and protecting structure, then steel pipe piles are arranged, a steel pipe pile entering and occupying core structure is continuously formed, and the slow flow structure is repeatedly arranged in the entering and occupying process. According to the embankment breach dynamic blocking and plugging structure and method based on the rocket anchors and the steel pipe piles, a dynamic repeated rocket anchor-steel mesh gabion slow flow structure is adopted, arrangement is conducted at the initial embankment head, arrangement of the slow flow structure is also conducted in the entering and occupying process, the protection effect on embankment head wrapping and protecting is achieved, and the embankment breach dynamic blocking and plugging effect is achieved. And the protection, buffering and flow reduction effects are achieved on the completed entering body, and more excellent conditions are created for later entering and final closure.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to a dynamic blocking and plugging structure and method for a dike breach based on rocket anchors and steel pipe piles. Background Art

[0002] Levees are water-retaining structures built along rivers, lakes and oceans. For thousands of years, they have been the main engineering means for humans to resist flood disasters. When the flood exceeds the resistance capacity of the levee, or when the levee is in danger and the rescue is improper or untimely, it will cause the levee to breach. Since levee breaches are often sudden and the location of the breach is difficult to predict, especially when super-standard floods occur, the floods caused by levee breaches often cause great harm to social and economic development and people's lives and property.

[0003] my country's river embankments have frequently breached in history, and the plugging technology has gradually developed in the rescue of countless breaches. However, the current plugging technology is inefficient, overly dependent on manpower, and has a low degree of mechanization. It is urgent to transform to modern emergency rescue technology. Therefore, it is necessary to seek a new type of breach plugging technology that is efficient, fast, and safe to solve the above shortcomings and minimize the property losses of the people in the disaster area.

[0004] There are some problems with traditional breach sealing technology:

[0005] (1) In the process of plugging, plugging materials are usually thrown directly. For some gaps with large width and high flow rate, it is easy to be washed away by the high-speed water flow if they are thrown alone, which not only has poor plugging effect, but also causes waste. Sometimes, sinking ships and cars is used for plugging, but it is obvious that this method is costly, wasteful and the solution effect is not satisfactory.

[0006] (2) The current blocking scheme usually adopts the method of placing blocking materials, and the placement of blocking materials mostly needs to be manually thrown, which usually requires a lot of manpower and time.

[0007] (3) As the breach is sealed, the width of the breach gradually decreases, the water flow conditions at the breach gradually deteriorate, the water depth increases, the flow rate increases, the impact force at the gate gradually increases, and the thrown blocking materials are difficult to stabilize on the riverbed at the breach, resulting in a greater demand for thrown materials, which increases the difficulty of blocking and reduces the blocking efficiency. Summary of the invention

[0008] The purpose of the present invention is to provide a dynamic blocking and plugging structure and method for embankment breach based on rocket anchors and steel pipe piles, which has the advantages of slowing down the breach water flow, high-quality and rapid occupation, closure, and rapid plugging.

[0009] To achieve the above-mentioned purpose, the present invention provides a dynamic blocking and plugging structure for embankment breach based on rocket anchors and steel pipe piles, including a broken embankment head, a embankment head protection structure, a rocket anchor-steel mesh gabion flow-relief structure and a steel pipe pile core structure. The embankment head protection structure is arranged at the end of the broken embankment head, the rocket anchor-steel mesh gabion flow-relief structure is arranged at the front end of the embankment head protection structure, and steel pipe piles are arranged in front of the rocket anchor-steel mesh gabion flow-relief structure to continuously form a steel pipe pile core structure.

[0010] Preferably, the dike head protection structure includes a protective net, plugging materials and steel pipe piles. The steel pipe piles are arranged around the broken dike head, and the steel pipe piles are connected to the protective net to form a large net bag steel pipe pile protection body.

[0011] Preferably, the rocket anchor-steel mesh gabion slow-flow structure includes a levee top fixed pile, a steel mesh gabion with a hook and a rocket anchor, one end of the rocket anchor is set on the riverbed at the bottom of the breach, and the other end is provided with an anchor cable, the anchor cable is connected to the levee top fixed pile, the anchor cable and the rocket anchor form a sliding channel, and the sliding channel is connected to the steel mesh gabion with a hook.

[0012] Preferably, a plurality of fixing piles are arranged on the top of the broken dike head, and the plurality of fixing piles are arranged in a plum blossom shape for fixing rocket anchors.

[0013] Preferably, the steel pipe piles occupy the core structure including steel pipe piles, plugging materials and a protective net, the protective net is arranged in front of the steel pipe piles, the steel pipe piles are arranged in two rows, and the plugging materials are thrown between the two rows of steel pipe piles.

[0014] The plugging method of the dike breach dynamic blocking and plugging structure based on rocket anchors and steel pipe piles comprises the following steps:

[0015] S1. Investigate the water flow conditions of the breach, formulate a blocking plan, and prepare for construction;

[0016] S2. Cut the head of the dike lower to form a construction platform;

[0017] S3. Build a dike head protection body, stabilize the broken dike head, use a vibratory pile driver to plant piles around the dike head, build a large net bag steel pipe pile protection body, push plugging materials into the protection body, use mechanical bulldozers to fill and compact, and form a dike head protection structure;

[0018] S4. Construct a rocket anchor slow-flow structure. Drive a row of fixed piles on the top of the embankment on both sides. The rocket launcher drives multiple rocket anchors on the riverbed at the bottom of the breach on the water side. Multiple rocket anchors and anchor cables form multiple sliding channels. The multiple channels slide the steel mesh gabions along the anchor cables. After the steel mesh gabions are slid, the other end of the anchor cable is fixed on the fixed pile on the top of the embankment to form a slow-flow structure.

[0019] S5. Arrange the steel pipe piles in two rows from the broken embankment head to the middle and downstream parts according to the selected embankment occupation axis. Arrange the protection net in front of the steel pipe piles on the river side. Use a throwing machine to throw the plugging materials between the two rows of steel pipe piles to form the steel pipe pile occupation core structure.

[0020] S6, repeated rocket anchor-steel mesh gabion slow-flow structure, according to the actual width of the breach, every 5-10 meters of occupation, rearrange the fixed piles on the occupation body, repeat the above steps to form a new rocket anchor-steel mesh gabion slow-flow structure;

[0021] S7. Carry out sealing of the breach and enter the final stage to build the final slow-flow structure. After the construction of the sealing structure is completed, the backfill soil is rolled and compacted, and then the polymer material or quick-setting concrete is injected from the grouting port of the grouting pipe pile by a high-pressure grouting machine to finally complete the sealing.

[0022] Preferably, in S2, the steep slopes of the upstream and downstream broken dike heads of the dike breach are cut to a slope of 1:1-1:0.5, and the upstream and downstream sharp corners are cut into rounded heads.

[0023] Preferably, in S4, multiple rocket anchors are driven onto the riverbed on the water side and are arranged roughly in a straight line.

[0024] Preferably, the breach sealing method is to carry out construction from both ends of the breach simultaneously, and dynamically arrange the slow-flow structure multiple times to wrap the head and occupy it.

[0025] Therefore, the present invention adopts the above-mentioned dynamic blocking and plugging structure and method for dike breach based on rocket anchors and steel pipe piles, which has the following beneficial effects:

[0026] (1) The rocket anchor-steel mesh gabion slow-flow structure constructed on the breach side of the river channel of the present invention can effectively realize the outward projection and buffering effect on the water flow, improve the water flow conditions at the breach, create good conditions for subsequent plugging, and ensure that the plugging efficiency is not affected by the width of the door.

[0027] (2) The repeated rocket anchor-steel mesh gabion flow-slowing structure of the present invention is arranged not only at the beginning of the dike head, but also during the occupation process. This not only protects the dike head, but also protects the completed occupation body, and can create more favorable conditions for the subsequent occupation and the final closure.

[0028] (3) The core system of blocking and coordinated blocking formed by the rocket anchor slow-flow structure, two rows of steel pipe piles and the protective net arranged in front of the piles in the present invention can effectively block and support the thrown blocking materials, prevent some of the thrown materials from being washed away by the water flow, increase their stability in the water flow, and greatly reduce the amount of thrown blocking materials.

[0029] (4) The present invention makes full use of modern machinery for plugging, with a high degree of mechanization, which improves the problem that most traditional plugging requires manual throwing, which requires a lot of manpower and time.

[0030] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the dike wrapping arrangement of the present invention;

[0032] Figure 2 This is a schematic diagram of the first stage layout of the present invention;

[0033] Figure 3 This is a schematic diagram of the second stage layout of the present invention;

[0034] Figure 4 This is a schematic diagram of the third stage layout of the present invention;

[0035] Figure 5 It is a schematic diagram of the steel mesh gabion in the present invention;

[0036] Figure 6 It is a schematic diagram of the steel pipe pile in the present invention;

[0037] Figure 7 It is a schematic diagram of the protection net in the present invention;

[0038] Figure 8 It is a schematic diagram of a rocket anchor with an anchor cable in the present invention;

[0039] Fig. 9 Schematic diagram of the plugging material using a geobag as an example in the present invention;

[0040] Reference numerals

[0041] 1. Broken dike head; 2. Fixed piles on the dike top; 3. Steel mesh gabion with hooks; 4. Rocket anchor; 5. Anchor cable; 6. Steel pipe piles; 7. Protective net; 8. Blocking material; 9. Entrance body; 10. Fixed piles on the entrance body. DETAILED DESCRIPTION

[0042] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0043] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] Example

[0045] See also Figure 1-9 The present invention provides a dynamic blocking and plugging structure for dike breach based on rocket anchors and steel pipe piles, including a broken dike head 1, a dike head protection structure, a rocket anchor-steel mesh gabion flow-relief structure and a steel pipe pile occupation core structure. The dike head protection structure is arranged at the end of the broken dike head, and the rocket anchor-steel mesh gabion flow-relief structure is arranged at the front end of the dike head protection structure. Then, the steel pipe piles are arranged to continuously form a steel pipe pile occupation core structure, and the flow-relief structure is repeatedly arranged during the occupation process.

[0046] The dike head protection structure includes a protective net 7, plugging materials 8 and steel pipe piles 6. The steel pipe piles 6 are arranged around the broken dike head 1. After the top of the broken dike head 1 is cut, piles are planted around the dike head. A layer of protective net 7 is fixed around the planted piles, and a large net bag steel pipe pile protection body is built. Steel mesh gabions, stones and other plugging materials 8 are pushed into the protection body to fill it up to form the dike head protection structure.

[0047] The rocket anchor-steel mesh gabion slow-flow structure includes a levee top fixed pile 2, a steel mesh gabion 3 with a hook and a rocket anchor 4. One end of the rocket anchor 4 is set at the riverbed at the bottom of the breach, and the other end is provided with an anchor cable 5. The anchor cable 5 is connected to the levee top fixed pile 2. The anchor cable 5 and the rocket anchor 4 form a sliding channel, and the sliding channel is connected to the steel mesh gabion 3 with a hook. Multiple rocket anchors 4 are driven on the riverbed on the water side and arranged roughly in a straight line. The tail end of each rocket anchor 4 is connected to an anchor cable 5, and the other end of the anchor cable 5 is fixed to the fixed pile at the top of the broken levee head; the steel mesh gabion 3 with a hook is hung on the anchor cable 5, and the steel mesh gabion is continuously slid and gradually stacked until it emerges from the water surface, forming a rocket anchor-steel mesh gabion slow-flow structure, which plays a role in reinforcing and protecting the levee head and the levee head wrapping structure.

[0048] A plurality of fixing piles are arranged on the top of the dike break 1, and the plurality of fixing piles are arranged in a plum blossom shape for fixing rocket anchors.

[0049] The steel pipe pile occupation core structure includes steel pipe piles 6, plugging materials 8 and protective nets 7, and the protective nets 7 are arranged in front of the steel pipe piles 6. The steel pipe piles 6 are arranged in two rows from the broken embankment head to the middle and downstream parts according to the selected embankment occupation axis. The distance between the steel pipe piles 6 is selected according to the actual situation of the embankment breach. The protective nets 7 are arranged in front of the steel pipe piles on the river side to form the steel pipe pile occupation core structure.

[0050] The specific implementation steps are as follows:

[0051] S1. Investigate the water flow conditions of the breach and formulate a plugging plan. After obtaining the breach information, determine the general plan for the dike head wrapping according to the shape of the breach and the water flow conditions, roughly determine the axis of the dike to plug the breach, determine the plugging material 8, determine the occupation plan including the number of occupation sections, the number of times of piling and arranging cages, the closure and air-blocking plan, so as to achieve rapid plugging of the breach.

[0052] S2. Cut down the embankment head, trim the slope, and form a construction platform. Figure 1 As shown in the figure, the top of the broken embankment is cut down, and the slope is appropriately corrected. The steep slope of the upstream and downstream broken embankment heads of the embankment breach is cut to a slope of 1:1-1:0.5, and the upstream and downstream sharp corners are cut into round heads, so that the subsequent geotextile bags, steel mesh gabions and other protective bodies are closely combined with the broken embankment head 1 to prevent the breach; the area of ​​the embankment top is appropriately expanded, and the height difference between the top of the broken embankment and the breach is reduced, so that there is a flat and open construction site on the top of the embankment, creating conditions for the entry and exit of rescue vehicles and the implementation of rescue operations. The professional rescue team and plugging equipment, rocket launchers, special sliding throwing machines, vibratory pile drivers and other plugging equipment quickly rushed to the breach site; at the same time, the steel mesh is used on the top of the embankment to assemble the blocks and other plugging materials into steel mesh gabions, which are neatly stacked on the top of the embankment for subsequent use.

[0053] S3. Build a dike head protection body, stabilize the broken dike head, and construct a rocket anchor slow-flow structure. Use a vibrating pile driver to plant steel pipe piles 6 around the dike head, fix the pre-prepared protection net 7 around the planted piles, build a large net bag steel pipe pile protection body, push steel mesh gabions, geotextile bags and other plugging materials 8 into the protection body, and use mechanical bulldozers to fill and compact.

[0054] S4. Arrange rocket anchor slow-flow structure. According to the conditions of the breach, select the anchoring position, first drive a group of fixed piles at the appropriate position on the top of the embankment, and use the rocket launcher to drive the rocket anchor 4 with anchor cable 5 into the riverbed at the bottom of the breach. After driving multiple rocket anchors 4 according to the planned anchoring positions, the rocket anchor 4 and the anchor cable 5 form multiple sliding channels for steel mesh gabions, and then the multiple channels slide the steel mesh gabions 3 with hooks along the anchor cable 5. The steel mesh gabions 3 with hooks are gradually stacked under the action of their own weight and the anchor cable 5 until the steel mesh gabions of each channel are exposed to the water surface, and the other end of the anchor cable 5 is fixed to the fixed pile 2 on the top of the embankment to form a rocket anchor slow-flow structure, improve the water flow conditions of the breach, and prepare for occupation.

[0055] S5. Arrange the steel pipe piles 6 in two rows from the broken embankment head to the middle and downstream parts according to the selected embankment entry axis at the breach, and arrange the protective net 7 in front of the steel pipe piles 6 on the river side to form the steel pipe pile entry core structure. Use a throwing machine to throw the steel mesh gabion and earth-rock bag and other blocking materials 8 between the two rows of steel pipe piles 6, and throw them layer by layer until they are exposed to the water surface, that is, the throwing is completed, and then the earth-rock covering body composed of soil, gravel, etc. is covered on it by a bulldozer to form an entry body 9, such as Figure 2-Figure 4 shown.

[0056] S6, repeated rocket anchor-steel mesh gabion slow flow structure during the occupation process. Figure 4 As shown, according to the actual width of the breach, every 5-10 meters of occupation, the fixed piles are rearranged on the occupation body 9 to form fixed piles 10 on the occupation body, and then anchoring is performed, and steel mesh gabions are hung. The above steps S4-S5 are repeated to form a new rocket anchor-steel mesh gabion slow-flow structure, which protects the completed occupation body and creates better conditions for subsequent occupation and final closure. The process of occupation and arrangement of slow-flow structures is repeated continuously to move forward.

[0057] The sealing process can be started from both ends of the breach simultaneously, which can improve the efficiency of rescue.

[0058] S7, close the breach and seal the air. When the width of the breach gradually decreases to 5-10 meters, the final rocket anchor-steel mesh gabion slow-flow structure is arranged on the final entry body 9 to create conditions for the final closure. Steel pipe piles 6 are continuously driven in from both sides until they meet, and a protective net 7 is arranged. Then, materials are thrown in. From the top of the embankment, plugging materials 8 such as steel mesh gabions or geotextile bags are first thrown in the middle of two rows of steel pipe piles 6, and thrown on the riverbed of the breach to protect the bottom. Then, plugging materials 8 are continuously thrown in front and behind the two rows of piles until they are exposed to the water surface. This completes the key part of the closure, and then the soil and stone covering body piled on the top of the embankment is pushed to complete the closure. After the construction of the entry and closure structure is completed, the filled soil is rolled and compacted, and then a high-pressure grouting machine is used to inject polymer materials or quick-setting concrete from the grouting port of the grouting pipe piles, and finally the air is sealed to achieve the goal of sealing the breach.

[0059] Therefore, the present invention adopts the above-mentioned dynamic blocking and plugging structure and method for dike breach based on rocket anchors and steel pipe piles. The rocket anchor-steel mesh gabion slow-flow structure constructed on the breach river channel side can effectively realize the outward projection and buffering effect on the water flow, improve the water flow conditions at the breach, create good conditions for subsequent plugging, and make the plugging efficiency not affected by the width of the door. The repeated rocket anchor-steel mesh gabion slow-flow structure protects the dike head and the completed occupation body, and can also create more favorable conditions for subsequent occupation and final closure. The core system of blocking and coordinated plugging formed by the rocket anchor slow-flow structure, two rows of steel pipe piles and the protective net arranged in front of the piles can effectively block and support the thrown plugging materials, prevent some thrown materials from being washed away by the water flow, increase their stability in the water flow, and greatly reduce the amount of thrown plugging materials. The present invention makes full use of modern machinery for plugging, has a high degree of mechanization, and improves the problem that most traditional plugging requires manual throwing, which requires a lot of manpower and time.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A dynamic blocking and plugging structure for dike breach based on rocket anchors and steel pipe piles, characterized by: It includes a broken dike head, a dike head protection structure, a rocket anchor-steel mesh gabion flow-slowing structure and a steel pipe pile-occupy core structure. The dike head protection structure is arranged at the end of the broken dike head, the rocket anchor-steel mesh gabion flow-slowing structure is arranged at the front end of the dike head protection structure, and steel pipe piles are arranged in front of the rocket anchor-steel mesh gabion flow-slowing structure, continuously forming a steel pipe pile-occupy core structure.

2. The dynamic blocking and plugging structure for dike breach based on rocket anchors and steel pipe piles according to claim 1 is characterized by: The dike head protection structure includes a protective net, plugging materials and steel pipe piles. The steel pipe piles are arranged around the broken dike head. The steel pipe piles are connected to the protective net to form a large net bag steel pipe pile protection body.

3. The dynamic blocking and plugging structure for dike breach based on rocket anchors and steel pipe piles according to claim 2 is characterized by: The rocket anchor-steel mesh gabion slow-flow structure includes a levee top fixed pile, a steel mesh gabion with a hook and a rocket anchor. One end of the rocket anchor is set on the riverbed at the bottom of the breach, and the other end is provided with an anchor cable. The anchor cable is connected to the levee top fixed pile. The anchor cable and the rocket anchor form a sliding channel, and the sliding channel is connected to the steel mesh gabion with a hook.

4. The dynamic blocking and plugging structure for dike breach based on rocket anchors and steel pipe piles according to claim 3 is characterized by: There are multiple fixed piles on the top of the broken dike, which are arranged in a plum blossom shape and are used to fix rocket anchors.

5. The dynamic blocking and plugging structure for dike breach based on rocket anchors and steel pipe piles according to claim 4 is characterized by: The core structure of the steel pipe piles includes steel pipe piles, plugging materials and a protective net. The protective net is arranged in front of the steel pipe piles. The steel pipe piles are arranged in two rows, and plugging materials are thrown between the two rows of steel pipe piles.

6. A method for blocking a dike breach using a dynamic blocking and blocking structure based on rocket anchors and steel pipe piles as described in any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Investigate the water flow conditions of the breach, formulate a blocking plan, and prepare for construction; S2. Cut the head of the dike lower to form a construction platform; S3. Build a dike head protection body, stabilize the broken dike head, use a vibratory pile driver to plant piles around the dike head, build a large net bag steel pipe pile protection body, push plugging materials into the protection body, use mechanical bulldozers to fill and compact, and form a dike head protection structure; S4. Construct a rocket anchor slow-flow structure. Drive a row of fixed piles on the top of the embankment on both sides. The rocket launcher drives multiple rocket anchors on the riverbed at the bottom of the breach on the water side. Multiple rocket anchors and anchor cables form multiple sliding channels. The multiple channels slide the steel mesh gabions along the anchor cables. After the steel mesh gabions are slid, the other end of the anchor cable is fixed on the fixed pile on the top of the embankment to form a slow-flow structure. S5. Arrange the steel pipe piles in two rows from the broken embankment head to the middle and downstream parts according to the selected embankment occupation axis. Arrange the protection net in front of the steel pipe piles on the river side. Use a throwing machine to throw the plugging materials between the two rows of steel pipe piles to form the steel pipe pile occupation core structure. S6, repeated rocket anchor-steel mesh gabion slow-flow structure, according to the actual width of the breach, every 5-10 meters of occupation, rearrange the fixed piles on the occupation body, repeat the above steps to form a new rocket anchor-steel mesh gabion slow-flow structure; S7. Carry out sealing of the breach and enter the final stage to build the final slow-flow structure. After the construction of the sealing structure is completed, the backfill soil is rolled and compacted, and then the polymer material or quick-setting concrete is injected from the grouting port of the grouting pipe pile by a high-pressure grouting machine to finally complete the sealing.

7. The method for blocking the dike breach dynamic blocking and blocking structure based on rocket anchors and steel pipe piles according to claim 6 is characterized by: In S2, the steep slopes of the upstream and downstream broken embankments of the dike breach were cut to a slope of 1:1-1:0.5, and the upstream and downstream sharp corners were cut into rounded heads.

8. The method for blocking the dike breach dynamic blocking and blocking structure based on rocket anchors and steel pipe piles according to claim 6 is characterized by: In S4, multiple rocket anchors are driven into the riverbed on the water side, arranged roughly in a straight line.

9. The method for blocking the dike breach dynamic blocking and blocking structure based on rocket anchors and steel pipe piles according to claim 6 is characterized by: The breach sealing method is to carry out construction from both ends of the breach simultaneously, and dynamically arrange slow-flow structures multiple times to wrap the head and occupy it.

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