CN115125902B - Method for rapidly blocking river breach based on blocking self-closing - Google Patents
Method for rapidly blocking river breach based on blocking self-closing Download PDFInfo
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- CN115125902B CN115125902B CN202210679373.0A CN202210679373A CN115125902B CN 115125902 B CN115125902 B CN 115125902B CN 202210679373 A CN202210679373 A CN 202210679373A CN 115125902 B CN115125902 B CN 115125902B
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- 238000009825 accumulation Methods 0.000 claims abstract description 16
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- 238000010276 construction Methods 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 7
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- 239000004677 Nylon Substances 0.000 claims description 4
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- 238000011049 filling Methods 0.000 claims description 4
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
- E02B3/106—Temporary dykes
- E02B3/108—Temporary dykes with a filling, e.g. filled by water or sand
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/18—Reclamation of land from water or marshes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/7609—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/22—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling
- E02F5/26—Combined conveying-bridges and dredgers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Revetment (AREA)
Abstract
The invention relates to a method for rush blocking of a river dike breach, in particular to a method for rush blocking of a small and medium-sized river dike breach, which belongs to the field of hydraulic engineering, and has IPC classification numbers of E02B 1/00 and E02B 3/02. The thorn-shaped framework throwing objects adopted by the invention have the characteristics of easy transportation and assembly, good water permeability and firm ground grabbing, the thorn-shaped framework throwing objects are continuously and uniformly distributed at the crumbling mouth, thorn-shaped framework throwing object accumulation bodies are formed at the crumbling mouth, suspended matters in water flow of the crumbling mouth are blocked, the impact force of the water flow is reduced, a water-blocking dam body is formed, and then, the large stone and the lead wire gabion are thrown, so that the quick blockage and restoration of the crumbling mouth are realized, and the invention has remarkable social benefit and economic benefit.
Description
Technical Field
The invention relates to a method for rush blocking of a river dike breach, in particular to a method for rush blocking of a small and medium-sized river dike breach, which belongs to the field of hydraulic engineering, and has IPC classification numbers of E02B 1/00 and E02B 3/02.
Background
The river embankment breach caused by flood in flood season is a serious danger which has the most serious loss, the largest influence surface and the most difficult emergency in a plurality of flood risks. According to the related data, the annual flood loss accounts for nearly one third of annual loss, and the breach of the river dike is blocked, and the national life and the ten fire emergency of the national institute are recovered. Especially for the common existence of medium and small river levee breach due to severe factors such as narrow levee roof, numerous river barriers, remote places, inconvenient traffic and the like, under the condition that the back river is water after the levee breach, the modern large mechanical equipment for long-distance call set needs long-time preparation processes such as unloading, assembly, road widening, reinforcement and the like when arriving at the scene, the breach is often expanded, the disaster is basically formed, the rescue construction of the closure can be performed, and the rescue team personnel arriving in advance have to stand by or do little assistance work due to the lack of proper technology, equipment and the like, so that the positive effect and important significance of the levee closure are greatly reduced.
The existing river dike breach blocking compound scheme has the following main problems:
(1) The large river in China is generally provided with a river basin committee as a special management mechanism, a professional team is arranged to be responsible for usual management and maintenance, each level of management departments is also provided with a professional rescue team, each river section, especially the easy-to-rescue engineering, is provided with professional rescue materials, but small and medium river embankments are not managed in place at ordinary times, the professional rescue team and the rescue materials are lacking, once a breach appears, people and materials are not timely regulated, the preparation time is long, the speed is low, when the conditions of manpower and material resources with a closure are met, the rescue construction is started in a single wandering ocean basically after flood is over, or the development of a gate is expanded to be close to stable, and the closure can be completed in 4-5 days above continuously, so that serious personnel and property losses downstream the breach are caused.
(2) In the latter stage of the breach closure, as the flow rate increases rapidly, especially up to within the last 10m width, the door impact force is very high, for example Wei Hepeng village dike breach after 7.20 heavy rain in the year 2021 Zheng Zhou, the last stage fills a plurality of large trucks filled with stones into the door continuously, but still is flushed out by the surge for nearly 10m away, mainly because: firstly, a truck fills in a door, and the water flow impact force of the door is larger than the stabilizing force of stones and vehicles to roll; secondly, the truck filled with stones, while weighing tens of tons, does not have any ground grabbing capacity.
Therefore, how to quickly transfer specialized rescue equipment and materials to a field when a breach is formed, and quickly put manpower and material resources into a limited field, especially how to improve the closure success rate, is a technical problem to be solved when the breach is formed.
Disclosure of Invention
The invention provides a rapid blocking method for a river dike breach based on blocking self-closing, which has the advantages of low construction cost, simple and efficient operation, safety, reliability, local material availability, and integration of water, land and air. The technical scheme of the invention is as follows:
a method for rapidly blocking a river breach based on blocking self-closing comprises the following steps:
(1) Eliminating broken dyke heads to form a construction platform; cutting down the tops of broken dikes on upstream and downstream broken dikes of the dikes, enlarging the area of the dikes, forming a larger construction platform on the broken dikes, reducing the height difference between the tops of the broken dikes and the water level of the broken dikes, and enlarging the rescue operation surface;
(2) Building a head wrapping protective body; the lead wire cages are connected in series to form a belt cage with a certain length, the belt cage is placed on the bank side of a cut-off broken-bank-head platform, sand and stones are filled in the cage, then the belt cage is pushed into a crumple opening, and a lead wire net sand stone cage head wrapping protection body (17) is formed on the broken-bank-head at the upper and lower sides of the crumple opening, so that the expansion of the crumple opening and the stable broken-bank-head are restrained;
(3) Erecting a throwing bridge, and assembling a thorn-shaped framework to throw objects; the method comprises the steps that a throwing bridge is assembled on a broken dike head platform at one end of a crumple, the throwing bridge comprises a support base, a support arm, support wheels, a support door, a tight pulling regulator, an anchor ingot, a steel wire rope, pulleys, a lifting hook and a traction control rope, the steel wire rope is pulled by a nylon rope to be communicated with two sides of the crumple, the anchor ingot is buried, the tight pulling regulator, the steel wire rope, the pulleys, the lifting hook and the traction control rope are installed, the tight pulling regulator is regulated, the steel wire rope at the two sides of the crumple is tightened, and the throwing bridge is quickly erected above the crumple; assembling a thorn-shaped framework for throwing objects on the upstream broken dike head or the downstream broken dike head of the crumple while erecting a throwing bridge; the thorn-shaped framework casting object comprises a blocking steel pipe, a blocking steel rod, a blocking steel hook and a guide plate; the guide plate is fixed at the tail end of the arresting steel pipe, and the direction of the guide plate is perpendicular to the length direction of the arresting steel pipe; the arresting steel bars are fixed on the arresting steel pipes at intervals, the arresting steel hooks are barb-shaped, and are welded on the arresting steel bars at intervals;
meanwhile, carrying out transportation and preparation of a lead wire net gabion and a large stone on a broken dike head platform at the other end of the crumbling opening;
(4) The embankment head is broken at the upstream and downstream of the crumple opening, and occupation construction is carried out at the same time; continuously and uniformly throwing the thorn-shaped framework throwing objects from the broken dike head at one end of the crumbling opening to form a thorn-shaped framework throwing object stacking body, wherein the throwing area is larger than 3/4 of the width of the opening door; meanwhile, the broken dike head at the other end is used for carrying out construction that a lead wire net gabion and a large stone are mixed into a occupation body;
the specific method for throwing the thorn-shaped framework throwing object comprises the following steps: hanging the thorn-shaped framework throwing object on a lifting hook, wherein the guide plate faces one end of the back water, a manual control pulley conveys the thorn-shaped framework throwing object to a set position above a crumple, the lifting hook is controlled to open, the thorn-shaped framework throwing object enters water along the water flow direction under the action of the guide plate, and a blocking steel rod is inserted into the riverbed to be grabbed and is fixed on the riverbed;
the construction method for mixing the lead wire mesh gabion and the large stone into the occupation body comprises the following steps: the method comprises the steps of stitching and connecting lead net keels by using steel wire locks to form a square cage, loading stones into the cage rapidly by using a loader or an excavator, stitching and sealing the lead net keels by using the steel wire locks to form a lead net stone cage, simultaneously matching a certain amount of large loose stones as occupying materials, transporting the lead net stone cage to the shore, pushing the lead net stone cage into a crumbling port by using a bulldozer, and forming a lead net stone cage and large loose stones mixed occupying body;
(5) Closing the crumple; after the thorn-shaped framework casting object accumulation body approaches the water surface, stopping the construction of mixing the lead wire net gabion and the bulk loose stone into the occupation body, casting the bulk stone and the lead wire gabion on the thorn-shaped framework casting object accumulation body by the upstream and downstream broken dyke heads of the crumbling mouth and simultaneously compacting the thorn-shaped framework casting object accumulation body in a covering way until the cast bulk stone and the lead wire gabion are exposed out of the water surface and do not sink any more, and compacting the lead wire gabion further by a construction vehicle to form a stable occupation body; then, the stable inlet occupation body is used as an operation platform, and continuously throwing and compacting are carried out to the middle of the gate until the breach is closed, so that a complete and compact block dam body is formed;
(6) Closing the air; and (3) quickly paving broken stone and soil on the top surface and the upstream slope of the dam body, filling gaps of the dam body of the dam, heightening and thickening, rolling the dam body of the dam body, controlling water seepage of the dam body to be in an allowable range, and finally realizing blockage and restoration of the breach.
Further, the outer diameter of the arresting steel pipe 11 is 160mm, the wall thickness is 5mm, and the length is 15-20 m; the outer diameter of the arresting steel rod 12 is 22mm, and the length is 1.5-2.0 m; the length of the arresting steel hook 13 is 0.2-0.3 m, and the guide plate 14 is a round steel plate with the diameter of 1.0m and the wall thickness of 3 mm.
The invention has the following technical effects:
(1) The prior bursting rescue equipment has the fatal defect that the existing bursting rescue equipment is difficult to grab ground and is watertight, so that the bursting rescue equipment is easy to wash away. The thorn-shaped framework throwing object adopted by the invention effectively overcomes the defects. The water blocking area of the thorn-shaped framework casting objects is small, water is highly permeable, the thorn-shaped framework casting objects enter water along the water flow direction after casting, due to the small water blocking area and the large dead weight, the thorn-shaped blocking steel rods pointing downwards are inserted into a river bed, so that the thorn-shaped framework casting objects are quickly grabbed, are firmly fixed on the river bed, are uniformly cast and densely distributed in a set range of the river bed to form a bottom bed protection layer, the ground flow speed and the flushing of the river bed of an opening door are reduced, the thorn-shaped framework casting objects of the subsequent casting are mutually supported and pulled through the blocking steel rods to form an opening door thorn-shaped framework casting object accumulation body, in the process that the water flow penetrates through the thorn-shaped framework casting object accumulation body neutral position, suspended matters such as plant root systems, weeds and the like in the water flow are blocked by the thorn-shaped blocking steel rods and the blocking steel hooks, the opening of the thorn-shaped framework casting object accumulation body is gradually filled by the blocking water flow suspension, the accumulation body is gradually reduced, and the opening speed of the opening door is continuously slowed down; root systems, weeds and the like suspended in river water have the specific gravity very close to 1, the weight and stability of the thorn-shaped framework throwing objects in the water flow of the gate are not greatly reduced after the thorn-shaped framework throwing objects are suspended, the overall stability of the thorn-shaped framework throwing objects in the gate after accumulating and blocking suspended matters in the water flow is realized through the mutual pulling of thorn-shaped blocking steel rods and the ground grabbing of the bottom layer, and the thorn-shaped framework throwing object accumulation bodies are prevented from being washed away or rushed down by the water flow after accumulating and blocking suspended matters in the water flow (namely, the blocking self-closing of the invention is realized).
(2) Another major defect of the existing breach rescue equipment is that: in order to be able to stand feet in the burst gate with turbulent water flow, only single huge equipment can be used, but the equipment is extremely difficult to transport in emergency scene with extremely inconvenient traffic, has low assembly speed, can not be rapidly and continuously put into the burst gate, and causes slow burst gate blocking and reduced meaning. The emergency tool adopted by the invention comprises a throwing bridge, a thorn-shaped framework throwing object, a head wrapping protective body, an occupied material and the like, has no large monomer, is favorable for transportation and on-site assembly, and even is suitable for individual soldiers to carry separately and assemble on site, so that quick transportation, quick assembly and quick continuous throwing are realized, and the comprehensive rescue operation, early rescue, small rescue and quick plugging in a short time are truly realized.
Drawings
FIG. 1 is a plan view of a first stage of the rapid preemption method of the present invention;
FIG. 2 is an upstream elevation view of a first stage of the rapid preemption method of the present invention;
FIG. 3 is a plan view of a second stage of the rapid preemption method of the present invention;
FIG. 4 is an upstream elevation view of a second stage of the rapid preemption method of the present invention;
FIG. 5 is a side view of a spiny skeleton casting employed in the present invention;
FIG. 6 is a cross-sectional view of a projectile of a spiny scaffold employed in the present invention;
FIG. 7 is a schematic view of a wire mesh employed in the present invention;
fig. 8 is a schematic view of a wire cage employed in the present invention.
In the figure, a support base 1, a support arm 2, a support wheel 3, a support door 4, a tension adjuster 5, an anchor 6, a steel wire rope 7, a pulley 8, a lifting hook 9, a traction control rope 10, a blocking steel pipe 11, a blocking steel rod 12, a blocking steel hook 13, a guide plate 14, a lead mesh keel 15, a lead mesh wire 16, a lead mesh sand bag or earth bag cage head wrapping protection body 17, a lead mesh stone cage and bulk loose stone mixing occupation body 18, a water body suspension 19 and a steel wire lock catch 20.
Detailed Description
The method for rapidly blocking the river breach based on blocking self-closing of the invention is described in detail below with reference to fig. 1-8.
The invention discloses a rapid blocking method for a river breach based on blocking self-closing, which comprises the following steps:
(1) Eliminating broken dyke heads to form a construction platform; as shown in fig. 1-4, on the upstream and downstream broken dykes of the dykes, the broken dykes are cut down to form a larger construction platform on the broken dykes for the purposes of moderately enlarging the area of the dykes and reducing the water level difference between the broken dykes and the broken dykes, thereby creating conditions for the rapid access of the rescue vehicle and the expansion of the rescue operation surface.
(2) Building a head wrapping protective body; as shown in fig. 1-4, 7 and 8, the emergency personnel rapidly unfolds the carried lead wire net, uses the steel wire lock catch 20 to stitch and connect the lead wire net keels 15 into a cage, connects the cage in series into a certain length of belt cage, places the belt cage on the bank of the cut broken dike, rapidly fills sand and stone or earth bags into the cage, uses the steel wire lock catch 20 to stitch and seal the lead wire net keels 15, and then uses a mechanical or manual combined pushing device (carried by individual soldiers and assembled on site) to push the cage into the breach, forms a lead wire net sand and stone bag or earth bag cage wrapping head protecting body 17 on the dike heads at two ends of the breach, namely on the upstream and downstream broken dike heads of the breach, and suppresses the enlargement of the breach and stabilizes the broken dike heads, so as to ensure that the wrapping heads do not collapse and retreat when occupying the breach.
(3) Erecting a throwing bridge, and assembling a thorn-shaped framework to throw objects; as shown in fig. 1-4, a throwing bridge is assembled on a broken dike head platform at the upstream and downstream of a bursting port, the throwing bridge comprises a bracket base 1, a bracket supporting arm 2, a bracket wheel 3, a bracket door 4, a tension regulator 5, an anchor ingot 6, a steel wire rope 7, a pulley 8, a lifting hook 9 and a traction control rope 10, the two sides of the bursting port of a nylon rope are communicated by using a power lifesaving throwing device or an emergency power boat, the two sides of the bursting port are communicated by using the nylon rope to pull the steel wire rope 7, the anchor ingot 6 is buried, the tension regulator 5 and the steel wire rope 7 are installed, the pulley 8, the lifting hook 9 and the traction control rope 10 are regulated, the steel wire rope 7 at the two sides of the bursting port is tightened, and the throwing bridge is formed by rapidly erecting above the bursting port. And assembling a thorn-shaped framework to throw objects at the upstream broken dyke head or the downstream broken dyke head of the crumple while erecting the throwing bridge. As shown in fig. 5 and 6, the thorn-shaped framework casting comprises a steel blocking pipe 11, a steel blocking rod 12, a steel blocking hook 13 and a guide plate 14; the guide plates 14 are welded or otherwise fixed at the tail ends of the arresting steel pipes 11, and the direction of the guide plates 14 is perpendicular to the length direction of the arresting steel pipes 11; the arresting steel bars 12 are fixed on the arresting steel pipes 11 according to the interval of 1.5-2.0 m, the arresting steel hooks 13 are barb-shaped and are welded on the arresting steel bars 12 in a divergent manner according to the interval of 0.5-0.6 m. There may be various specifications and models as required. In this embodiment, the outer diameter of the arresting steel pipe 11 is 160mm, the wall thickness is 5mm, the length is 15-20 m, the outer diameter of the arresting steel rod 12 is 22mm, the length is 1.5-2.0 m, the length of the arresting steel hook 13 is 0.2-0.3 m, the guide plate 14 is a circular steel plate with the diameter of 1.0m and the wall thickness of 3mm, the weight of the assembled thorn-shaped framework casting object is about 1000kg, and the casting object can be guided along the water flow.
The thorn-shaped framework throwing object is assembled on one side of the crumple opening, which is inconvenient to traffic, and is assembled on the upstream side if the upstream broken dyke head is inconvenient to traffic, otherwise, the thorn-shaped framework throwing object is assembled on the downstream side, and the two sides of the crumple opening are not required to be assembled at the same time. And transporting and preparing other materials such as a wire mesh gabion, a large stone and the like at the other side of the convenient-to-transport breach.
(4) The embankment head is broken at the upstream and downstream of the crumple opening, and occupation construction is carried out at the same time; as shown in fig. 1-4, continuously and uniformly throwing the thorn-shaped framework throwing objects from the broken dike head at one end of the crumple opening to form a thorn-shaped framework throwing object stack body, wherein the throwing area is larger than 3/4 of the width of the gate; meanwhile, the embankment head is broken at the opposite end, and the construction of mixing the lead wire net gabion and the large stone into the occupation body 18 is carried out. The construction is taken account of simultaneously from the both ends of door, can improve the efficiency of speedily carrying out rescue work, belongs to the door at this moment and takes account of the initial stage, owing to the door width is great, and rivers impact force is less, adopts traditional wire mesh gabion and large stone to mix to take account of, can not be washed away.
The specific method for throwing the thorn-shaped framework throwing object comprises the following steps: the assembled thorn-shaped framework throwing objects are hung on the lifting hooks 9, the guide plates 14 face one end of the back water, the manually operated pulleys 8 are used for setting the upper part of the thorn-shaped framework throwing object conveying breach, the lifting hooks 9 are controlled to open, the thorn-shaped framework throwing objects are thrown down, the thorn-shaped framework throwing objects falling into the water flow of the gate flow enter water along the water flow direction under the action of the guide plates 14, fall to the river bottom, and the blocking steel bars 12 are inserted into the river bed to be grabbed to be firmly fixed on the river bed.
The construction method of the lead wire mesh gabion and the large stone mixed occupying body 18 comprises the following steps: the wire mesh keels 15 are sewn and connected by the steel wire lock catches 20 to form a square cage which is convenient for the dump truck to transport and assemble and disassemble, the square cage is lifted into a dump truck hopper, stones are quickly filled into the cage by a loader or an excavator, the wire mesh keels 15 are sewn and sealed by the steel wire lock catches 20 to form a wire mesh gabion, the wire mesh gabion is transported to the shore, and the lead mesh gabion is pushed into a crumple by a bulldozer; in order to improve the efficiency of the lead wire net cage and reduce the use quantity of the lead wire net cage, a certain amount of bulk scattered stones are matched as an occupied material according to the actual situation of water flow at a breach, so that the lead wire net cage and the bulk scattered stones are mixed into the occupied body 18.
The thorn-shaped framework throwing objects are the core and key of the invention, the water blocking area of the thorn-shaped framework throwing objects is small, the thorn-shaped framework throwing objects are highly permeable, the initially thrown thorn-shaped framework throwing objects enter water along the water flow direction and fall to the river bottom, the thorn-shaped blocking steel rods pointing downwards are inserted into the river bed to grab the ground and are fixed on the river bed, the thorn-shaped framework throwing objects which are uniformly thrown and densely distributed in the set range of the river bed form a bottom protection layer, the flow speed and the flushing speed of the river bed of an opening gate are reduced, the thorn-shaped framework throwing objects continue to be uniformly thrown, the second layer throwing thorn-shaped framework throwing objects which are formed to be piled up on the bottom layer are mutually supported and pulled through the blocking steel rods 12, the layer-by-layer shelving and the thorn-shaped framework throwing objects are piled up in the water flow direction until the water flow approaches to the water surface, so as to form a final thorn-shaped framework throwing object pile body, and the plant root systems, weeds and other suspended objects in the water flow are blocked by the thorn-shaped blocking steel hook throwing object 12 and the blocking hook throwing object 13 in the process of penetrating through the thorn-shaped framework throwing object pile body, the flow speed of the barrier gate is gradually reduced, and the water barrier gate is gradually piled up by the barrier gate and the barrier steel gate; root systems, weeds and the like suspended in river water have the specific gravity very close to 1, the weight and stability of the thorn-shaped framework throwing objects in the water flow of the gate are not greatly reduced after the thorn-shaped framework throwing objects are suspended, the overall stability of the thorn-shaped framework throwing objects in the river water after accumulating and blocking suspended matters in the water flow is realized through the mutual pulling of thorn-shaped blocking steel rods and the ground grabbing of the bottom layer, and the thorn-shaped framework throwing object accumulation bodies are prevented from being washed away or rushed down by the water flow after accumulating and blocking suspended matters in the water flow.
(5) Closing the crumple; after the top of the thorn-shaped framework casting accumulation body approaches the water surface, stopping the construction of mixing the lead wire net gabion and the bulk loose stones into the occupation body 18, casting the bulk stones and the lead wire gabion into the port door from the upstream and downstream of the crumbling port simultaneously, and carrying out covering pressing and preliminary compacting on the thorn-shaped framework casting accumulation body, further compacting by using a construction vehicle after the cast bulk stones and the lead wire gabion are exposed out of the water surface and are not sunk, forming a stable occupation body, and continuously casting and compacting towards the middle of the port door by using the stable occupation body as an operation platform until the crumbling port is closed, thereby forming a complete and compact closure dam body.
(6) Closing the air; the dam body of preliminary shutoff breach is because of filling material is bulky, lack effective compaction etc. the dam body exists great space and leaks seriously, influences the dam body safety of blocking up, in order to prevent that the dam body from taking place the infiltration destruction and further inducing the breach, need lay rubble and soil to dam body top surface, the slope of upstream in good time fast after closure, leveling and filling blocking up dam body top surface and space to add Gao Peihou, roll the dam body, control the dam body infiltration in the range of allowing, finally realize the stifled target of compounding of breach.
Claims (2)
1. A method for rapidly blocking a river breach based on blocking self-closing comprises the following steps:
(1) Cutting down the broken dyke head to form a construction platform; cutting down the tops of broken dikes on upstream and downstream broken dikes of the dikes, enlarging the area of the dikes, forming a larger construction platform on the broken dikes, reducing the height difference between the tops of the broken dikes and the water level of the broken dikes, and enlarging the rescue operation surface;
(2) Building a head wrapping protective body; the lead wire cages are connected in series to form a belt cage with a certain length, the belt cage is placed on the bank side of a cut-off broken-bank-head platform, sand and stones are filled in the cage, then the belt cage is pushed into a crumple opening, and a lead wire net sand stone cage head wrapping protection body (17) is formed on the broken-bank-head at the upper and lower sides of the crumple opening, so that the expansion of the crumple opening and the stable broken-bank-head are restrained;
(3) Erecting a throwing bridge, and assembling a thorn-shaped framework to throw objects; a throwing bridge is assembled on a broken dike head platform at one end of a crumple, and comprises a bracket base (1), a bracket arm (2), a bracket wheel (3), a bracket door (4), a tension regulator (5), an anchor ingot (6), a steel wire rope (7), a pulley (8), a lifting hook (9) and a traction control rope (10); the anchor ingot (6) is buried on two sides of the crumple, the support base (1) is located on two sides of the crumple, the steel wire rope (7) is communicated with the two sides of the crumple and is connected with one end of the tight-pulling regulator (5) through the support wheel (3) on the support door (4), and the other end of the tight-pulling regulator (5) is connected with the anchor ingot (6); the support door (4) is arranged on the support base (1), the support arm (2) is arranged between the support base (1) and the support door (4), the support wheel (3) is arranged at the top of the support door (4), the pulley (8) is arranged on the steel wire rope (7), the lifting hook (9) is arranged on the pulley (8), and the traction control rope (10) is used for dragging the lifting hook (9); the nylon rope is used for pulling the steel wire ropes (7) to be communicated with two sides of the crumple, the tightening regulator (5) is regulated, the steel wire ropes (7) on the two sides of the crumple are tightened, and a throwing bridge is formed by quick erection above the crumple; assembling a thorn-shaped framework for throwing objects on the upstream broken dike head or the downstream broken dike head of the crumple while erecting a throwing bridge; the thorn-shaped framework casting object comprises a blocking steel pipe (11), a blocking steel rod (12), a blocking steel hook (13) and a guide plate (14); the guide plate (14) is fixed at the tail end of the arresting steel pipe (11), and the direction of the guide plate (14) is perpendicular to the length direction of the arresting steel pipe (11); the arresting steel rods (12) are fixed on the arresting steel pipes (11) at intervals, the arresting steel hooks (13) are barb-shaped, and are welded on the arresting steel rods (12) at intervals;
meanwhile, carrying out transportation and preparation of a lead wire net gabion and a large stone on a broken dike head platform at the other end of the crumbling opening;
(4) The embankment head is broken at the upstream and downstream of the crumple opening, and occupation construction is carried out at the same time; continuously and uniformly throwing the thorn-shaped framework throwing objects from the broken dike head at one end of the crumbling opening to form thorn-shaped framework throwing object accumulation bodies, wherein the throwing area is larger than 3/4 of the width of the opening door; meanwhile, the broken dike head at the other end is used for carrying out construction that a lead wire net gabion and a large stone are mixed into a occupation body (18);
the specific method for throwing the thorn-shaped framework throwing object comprises the following steps: the method comprises the steps that a thorn-shaped framework throwing object is hung on a lifting hook (9), a guide plate (14) faces one end of a back water, a manual control pulley (8) conveys the thorn-shaped framework throwing object to a set position above a crumple, the lifting hook (9) is controlled to open, the thorn-shaped framework throwing object enters water along the water flow direction under the action of the guide plate (14), and a blocking steel rod (12) is inserted into a riverbed to be grabbed and is fixed on the riverbed;
the construction method for mixing the lead wire mesh gabion and the large stone into the occupying body (18) comprises the following steps: the wire mesh keels (15) are sewn and connected by using the steel wire lock catches (20) to form a square cage, stones are quickly filled into the cage by using a loader or an excavator, then the wire mesh keels (15) are sewn and sealed by using the steel wire lock catches (20) to form the wire mesh gabion, and meanwhile, a certain amount of large loose stones are matched to be used as occupying materials and transported to the shore, and the wire mesh gabion and the large stones are pushed into a crumbling port by using a bulldozer to form a mixed occupying body (18);
(5) Closing the crumple; after the thorn-shaped framework casting accumulation body approaches the water surface, stopping the construction of mixing the lead wire net gabion and the large stone into the occupation body (18), casting the large stone and the lead wire net gabion on the thorn-shaped framework casting accumulation body by the upstream and downstream broken dike heads of the crumbling mouth and simultaneously compacting the thorn-shaped framework casting accumulation body in a covering manner, and further compacting by using a construction vehicle until the cast large stone and the lead wire net gabion are exposed out of the water surface and do not sink any more, so as to form a stable occupation body; then, a stable inlet occupying body is used as an operation platform, and continuously thrown and compacted towards the middle of the gate until the breach is closed, so as to form a compact and complete blocking dam body;
(6) Closing the air; and (3) quickly paving broken stone and soil on the top surface and the upstream slope of the dam body, filling gaps of the dam body of the dam, heightening and thickening, rolling the dam body of the dam body, controlling water seepage of the dam body to be in an allowable range, and finally realizing blockage and restoration of the breach.
2. The rapid blockage prevention method for a river breach based on blocking self-closing according to claim 1, wherein the outer diameter of the blocking steel pipe (11) is 160mm, the wall thickness is 5mm, and the length is 15-20 m; the outer diameter of the arresting steel rod (12) is 22mm, and the length is 1.5-2.0 m; the length of the arresting steel hook (13) is 0.2-0.3 m, and the guide plate (14) is a round steel plate with the diameter of 1.0m and the wall thickness of 3 mm.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006307463A (en) * | 2005-04-27 | 2006-11-09 | Soken Kogyo Kk | Wave absorbing structure and method of constructing the same |
| CN106400740A (en) * | 2016-09-23 | 2017-02-15 | 武汉大学 | Novel plugging method and device used after dike breaking |
| CN113846603A (en) * | 2021-08-09 | 2021-12-28 | 江苏省洪泽湖水利工程管理处 | Be used for quick plugging device of water conservancy dyke breach |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006307463A (en) * | 2005-04-27 | 2006-11-09 | Soken Kogyo Kk | Wave absorbing structure and method of constructing the same |
| CN106400740A (en) * | 2016-09-23 | 2017-02-15 | 武汉大学 | Novel plugging method and device used after dike breaking |
| CN113846603A (en) * | 2021-08-09 | 2021-12-28 | 江苏省洪泽湖水利工程管理处 | Be used for quick plugging device of water conservancy dyke breach |
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