CN115217064A - Suspended funnel-shaped sea sand collecting cage net and coastal erosion protection system - Google Patents

Abstract

The invention discloses a suspended funnel-shaped sea sand trapping cage net and a coastal erosion protection system. Coastal erosion protection system, including the kelp kind planting district, floated hourglass hopper-shaped sea sand entrapment cage net, brush post, the one-way sand barrier that hinders of link plate formula and the solid sand barrier of n shape suspension storehouse storage formula that lay in proper order to land direction along the ocean direction, kelp kind planting district, floated hourglass hopper-shaped sea sand entrapment cage net, brush post, the one-way sand barrier that hinders of link plate formula and the solid sand barrier of n shape suspension storehouse storage formula are on a parallel with the coastline respectively and are the multichannel setting. The coastal erosion protection system provided by the invention comprises five measures with various functions, the distribution area is from the near-shore seabed to the land beach, and the measures supplement each other, so that the supply of water sand and wind sand sediments to the shore is larger than the loss to the sea, the siltation of the seabed and the beach is promoted, the elevation of the sea bed surface and the beach is continuously improved, the wave energy is weakened, and the occurrence of coastal erosion is effectively inhibited.

Description

Suspended funnel-shaped sea sand collecting cage net and coastal erosion protection system

Technical Field

The invention belongs to the technical field of coastal erosion treatment, and particularly relates to a suspended funnel-shaped sea sand trapping cage net and a coastal erosion protection system.

Background

In marine disasters, coastal erosion with global trends has generally attracted attention. Coastal erosion refers to a destructive process of coast retreat caused by that supply of sand along the shore is less than loss of sand along the shore under the action of ocean power. And thus causes environmental hazards such as beach recession, reduced island and land areas, coastal depressions submerged, sea water irrigation, near shore building and facility destruction, and the like. Therefore, it is necessary to develop a method for promoting siltation of sandy coasts and islands and preventing erosion of coasts.

In order to alleviate the damage caused by coast erosion, the currently used method is to change the migration pattern of near-shore silt through engineering measures in a local coast section so as to accumulate the silt. The main protection projects include the following:

firstly, the seawall is a traditional human coast protection method, is built in a higher region of a beach, is a building for dividing a seashore land area and a sea area, and generally runs parallel to a coastline. Although it plays a great role in fixing the coast and preventing moisture and waves. It is generally not used for the purpose of protecting the beach, and is not suitable as a long-term protection against waves unless used as an aid or emergency under other engineering measures. Therefore, the engineering structure is generally only suitable for the coast with small sea waves or the coast silted to prevent abnormal sea sinking.

And secondly, the spur dikes and the spur dike groups are coastal buildings nearly perpendicular to a coastline, and have the function of intercepting silt conveyed from the upstream of the coastline to form a wide beach to protect the coastline. The spur dike is more mature in the muddy coast and can be applied to the muddy coast area. The spur dike and the spur dike group achieve the aim of protecting the coast by intercepting sediment, so that the spur dike is not beneficial to intercepting a large amount of sediment to form a beach for rivers such as yellow river with the sediment transport amount reduced year by year, and the protection method has defects, particularly for sandy coast.

And thirdly, constructing a breakwater which is approximately parallel to the shoreline in a sea area at a certain distance outside the shoreline, wherein the breakwater is called an offshore breakwater and is called an offshore breakwater for short. The function of the dam is similar to that of a spur dike, and silting of beaches on the upstream side of an offshore dike can be caused. Boulders or various concrete blocks may be used as a facing. However, the opening of the offshore bank is small, and the pollution is easy to accumulate in the bay and is difficult to discharge. Therefore, the off-shore embankment is selected as the coastal protection project, and the environmental pollution problem is considered.

Fourthly, the artificial river beach is used for supplementing sand, and collecting proper sand from the sea or on land to supplement the sand on the eroded beach is the most natural countermeasure for solving the coastal erosion. Beach sand replenishment has proven to be an economically effective measure and has less impact on downstream beaches than other protective facilities. Because the sand artificially filled on the beach can still be washed away under various marine environmental conditions, particularly under the action of sea waves, the beach must be supplemented with sand every few years.

Although the coastal protection projects have more forms, the coastal protection projects have respective defects, and by integrating the above analysis, the coastal protection projects can see that firstly, except for the fourth artificial beach sand supplementing measure, other measures are all arranged in seawater, so that the coastal protection projects do not play a role in protecting the sandy beach above the high tide line, and sand grains can still be brought into the seawater by wind erosion; secondly, various dams play a role in reducing waves and depositing silt towards the bank, but a large amount of sea sand is still washed and brought back to the sea, and the two sides of the dam play a role in blocking the silt, so that the supply amount and the deposition effect of the silt towards the bank are weakened; in addition, various dams are rigid structures, only one dam is arranged, waves passing through the dam have large energy and can erode the coast at any time, and the dams are high in cost and long in construction period.

Disclosure of Invention

The invention mainly aims to provide a suspended funnel-shaped sea sand trapping cage net and a coastal erosion protection system so as to overcome the defects in the prior art.

In order to achieve the aforementioned object, the embodiment of the present invention adopts a technical solution that includes:

the embodiment of the invention provides a suspended funnel-shaped sea sand collecting cage net, which comprises more than one baffle and a collecting cage net, wherein the baffle is arranged on the side, close to the collecting cage net, facing the sea through a fixing mechanism; the catching cage net comprises a connecting net, a funnel and connecting ropes, wherein the connecting net is provided with the connecting ropes at least used for reinforcing the connecting net, the connecting net is divided into a plurality of connecting net units at equal intervals by the connecting ropes, and the funnel is distributed on each connecting net unit; the baffle comprises a sand conveying and blocking plate and a base, and the sand conveying and blocking plate is fixedly connected with the base through a pillar.

Furthermore, the suspended funnel-shaped sea sand trapping cage net is arranged in the intertidal zone.

Further, the fixing mechanism comprises a first connecting ring arranged at the top of the sand transporting and blocking plate, a plurality of second connecting rings arranged on the sea side surface of the connecting net, and a connecting rod penetrating through the first connecting ring and the second connecting rings.

Furthermore, the edge of the funnel is provided with a small hole, and the funnel is bound and fixed on the connecting net through the small hole.

Furthermore, the cross part of the connecting rope is also provided with an upright post, and the suspended funnel-shaped sea sand trapping cage net is fixed on the sea bed surface through the upright post.

Furthermore, the sand conveying and blocking plate is of a smooth streamline structure.

Furthermore, the support column and the sand transporting and blocking plate are of an integrally formed structure poured by reinforced concrete, and the support column is arranged in the middle of the sand transporting and blocking plate and is positioned on the shore-facing side of the sand transporting and blocking plate.

Furthermore, the bottom of the sand conveying and blocking plate and the bottom of the support are respectively provided with a fixed bolt and an extension rod matched with the fixed bolt; the base is formed by connecting a plurality of building block along the shore line direction, and is connected through forked tail mortise type erection column and mounting groove between two adjacent building blocks and forms an organic whole, and every building block top have with extension rod bottom complex sunken mounting hole.

The embodiment of the invention also provides a coastal erosion protection system which comprises a giant kelp planting area, a suspended funnel-shaped sea sand trapping cage net, a brush column, a hanging plate type one-way sand-blocking barrier and an n-shaped suspended storage type sand-fixing barrier which are sequentially arranged along the direction of the sea and towards the direction of the land, wherein the giant kelp planting area, the suspended funnel-shaped sea sand trapping cage net, the brush column, the hanging plate type one-way sand-blocking barrier and the n-shaped suspended storage type sand-fixing barrier are respectively parallel to a coastline and are arranged in a plurality of ways.

Furthermore, the kelp planting area is distributed with a breeding rope vertically arranged in a water area with the depth of 5-20m below the lowest tide line, and the breeding rope is used for planting kelp.

Further, the brush columns are distributed in the intertidal zone in a zigzag or wavy manner along the parallel direction of the coast.

Furthermore, two adjacent brush columns are mutually abutted, and the distance between every two adjacent brush columns is 1-3m.

Further, the hairbrush column comprises a support column and a filamentous hairbrush fixed on the support column, the filamentous hairbrush comprises a plurality of tows which are densely distributed along the length direction of the support column, and two ends of each tow extend to two sides of the support column.

Furthermore, the hanging plate type one-way sand barrier is arranged on a beach above the highest tide level line.

Furthermore, the hanging plate type unidirectional sand-blocking barrier comprises a plurality of stand columns arranged at intervals, the lower part of each stand column is fixedly connected with the base, a plurality of hooks are further connected to two sides of each stand column, the hooks are arranged at intervals along the length direction of the stand column, a plurality of hanging plates and at least one blocking cross rod are further distributed between every two adjacent stand columns, the hanging plates are arranged along the horizontal direction, two ends of the upper edge of each hanging plate are respectively connected with one stand column through at least one hook, meanwhile, the lower edges of the hanging plates are vertically placed on one side facing to the shore, any two adjacent hanging plates are arranged in parallel and partially overlapped, and the blocking cross rod is arranged on the sea-facing side of the lower edge of the hanging plate at the bottommost; when the hanging plate type unidirectional sand barrier is swept by wind facing the shore, any two adjacent hanging plates are separated from each other, so that sand carried by the wind is conveyed towards the land direction through the hanging plate type unidirectional sand barrier; when wind in the sea direction blows the hanging plate type unidirectional sand barrier, any two adjacent hanging plates are kept in an overlapped state, and therefore sand carried by the wind is prevented from passing through the hanging plate type unidirectional sand barrier.

Furthermore, the n-shaped suspended storage type sand stabilizing barrier is arranged on the sand beach above the highest tide level line and perpendicular to the main wind direction.

Furthermore, the n-shaped suspended storage type sand stabilization barrier comprises a wire coil wound three-dimensional net and a plurality of connectable columns movably connected with the wire coil wound three-dimensional net, wherein the wire coil wound three-dimensional net is laid along the horizontal direction, and the edge parts of two sides of the wire coil wound three-dimensional net naturally droop, so that a structure with an n-shaped lateral section is formed.

Compared with the prior art, the invention has the following beneficial effects:

(1) The suspended funnel-shaped sea sand trapping cage net has the advantages that the baffle can prevent the front side of sea waves from directly impacting a seabed, and sediment can fall into the seabed at the bottom of the funnel along with water flow and waves through the surface of the baffle; the collecting cage net is only open towards the bank to form a semi-closed sand collecting space, and the collecting cage net and the semi-closed sand collecting space are combined to form a suspended funnel-shaped sea sand collecting cage net which can collect sediments transmitted towards the bank and retreated into the sea along with the waves and the tides; after the sand collecting space is full of sand, the height of a fixed point between the connecting rope and the stand column can be lifted, and the mode of installing the extension rod under the fixing bolt is provided, so that the cage net and the baffle are integrally lifted, and the sustainable utilization of the device is realized.

(2) According to the coastal erosion protection system, in seawater, the giant kelp can reduce the energy of ocean currents and wave tides in deep water areas, the cage net is trapped to reduce the waves near the lowest tide line, sediment deposition in the cage net is promoted, the brush columns mainly break the wave zone between tides, and the waves are weakened, and sand particles are filtered and deposited; on the sand beach on the high tide line, the hanging plate type unidirectional sand-blocking barrier and the n-shaped suspended storage type sand-fixing barrier respectively play roles in unidirectional blocking wind sand flow and fixing drift sand for a long time; five measures with various functions are arranged in multiple ways parallel to a coastline according to the landform situation of the beach, and are combined with each other to form a coast erosion protection system, so that the supply of water sand and wind sand sediments to the shore is larger than the loss to the sea from a near-shore seabed to a land beach, the siltation of the seabed and the beach is promoted, the elevation of the sea bed surface and the beach is continuously improved, the wave energy is weakened, and the occurrence of coast erosion is inhibited; particularly, the method is an effective measure for comprehensive treatment of near-shore water sand and wind sand for sandy shorelines and islands.

(3) According to the coastal erosion protection system, the kelp plants swing along with waves and ocean currents to form a spectacular submarine forest, so that the impact of wave tides on a shoreline can be effectively relieved, and the seashore erosion protection system is a natural breakwater; can provide good inhabitation and bait-requesting places for the natural and cultured aquatic organisms near the shore, and promote the proliferation of marine organism resources and the sustainable development of an ecological system.

(4) According to the coast erosion protection system, the brush columns densely arranged in a fold line shape or a wave shape can effectively relieve the impact and erosion of waves in a broken wave zone on a shore line through the flexible blocking and filtering processes of the brushes, filter deposited particles and prevent the particles from moving back to the sea, so that the particles are fixed in an intertidal zone, and the effects of preventing the scouring and accumulating the ground surface elevation of the broken wave zone are achieved; in addition, the long-term treatment of the erosion of the broken wave zone can be realized by manually lifting each independently arranged brush column.

(5) The coastal erosion protection system has the advantages that the hanging plate type one-way sand barrier is simple in structure and convenient to construct and maintain, the one-way valve design realizes that sand can be transported to the bank only and can not be transported to the sea, when the bottom baffle on one side of the sand barrier close to the bank is buried, the hanging plate is in an open state under the action of wind towards the bank, and sand particles on one accumulated side can be eroded by wind, so that the sand barrier is low in risk of being buried by itself, and the coastal erosion protection system has the characteristics of sand accumulation, blowing erosion reciprocating circulation, self-cleaning and long service life; under the action of multiple wind directions on the coast, sand particles do reciprocating circular motion, sand can possibly accumulate on two sides of a hanging plate at the bottommost part of the sand barrier, and when the sand surface is lifted to the position of 2/3 of the height of the sand barrier, the hanging plate with the buried bottom part can be dug out and hung on a hook at the upper end of the upright post or a new hanging plate can be directly hung on the hanging plate; therefore, the invention can also realize the purposes of reusing the hanging plate and the upright post, conveniently lifting the height of the sand barrier and prolonging the service life of the project, saves the cost and simultaneously realizes the purposes of continuously lifting the earth surface and promoting silt and land reclamation.

(6) According to the coast erosion protection system, the n-shaped suspended flat-laying structure is designed, so that wind and sand flow can smoothly enter the n-shaped inverted huge storage space, wind power is reduced through swinging of the drooping-shaped edge, energy of upper airflow is isolated and reduced through the sand barrier, energy of bottom sand-carrying airflow is consumed under the action of friction force of the sand barrier and the ground, and the sand particle deposition effect is remarkably increased; the sand barrier main body material has the integral dense porous three-dimensional structure characteristic and is different from a sand barrier in a punching type, a mesh type or a plate gap type. When wind and sand flow impacts any part of the sand barrier, dense and irregular turbulence is generated inside the wire ring, so that the speed and energy of the air flow are greatly consumed, sand particles are easy to settle and fix, and the wind blocking and sand accumulation efficiency is higher; in addition, the three-dimensional net of the sand barrier is not contacted with the sand surface, so that the lifting operation can be easily carried out, for example, the sand barrier and the sand surface can be always kept at a distance of 20-50cm by lifting the three-dimensional net, lifting the original support column and sleeving a new support column, the three-dimensional net of the sand barrier is prevented from contacting the sand surface, the sand accumulation amount is increased, the service life is prolonged, and the continuous utilization is realized; the lifting amplitude, namely the corresponding sand accumulation thickness can reach several meters to dozens of meters, which is far greater than the sand accumulation thickness of the traditional square sand-fixing barrier by 10-30cm, and the arrangement width reaches 10-40m, so that the sand accumulation amount is far greater than that of the traditional square sand-fixing barrier, and the service life is long; meanwhile, the three-dimensional net used by the sand barrier is provided with a large number of pores, and sand particles can flow out of the pores through lifting and shaking even if the sand barrier is buried by sand wind, so that continuous utilization can be realized through continuous lifting, or the sand barrier can be recycled after being moved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a suspended funnel-shaped sea sand trapping cage net in one embodiment of the present application.

Fig. 2 is a schematic view of a connection structure of the support of the barrier in fig. 1 and the sand transporting and blocking plate.

Fig. 3 is a side view of the pedestal projecting mounting post of the baffle of fig. 1.

FIG. 4 is a side view of the mounting slot of the base depression of the baffle of FIG. 1.

Figure 5 is a schematic diagram of the configuration of the catchment cage net of figure 1.

Fig. 6 is a schematic structural diagram of a coastal erosion protection system according to an embodiment of the present application.

Fig. 7 is a schematic view showing the structure of the brush column of fig. 6.

Fig. 8 is a top view of the brush column of fig. 6.

FIG. 9 is a schematic view of one arrangement of the brush columns of FIG. 6.

FIG. 10 is a schematic view of another arrangement of the brush posts of FIG. 6.

Fig. 11 is a schematic view of the assembly process of the hanging plate type unidirectional sand barrier in fig. 6.

Fig. 12 is a front view of the hanging plate type unidirectional sand-blocking barrier in fig. 6 in a closed state.

Fig. 13 is a front view of the slat type unidirectional sand barrier of fig. 6 in an opened state.

Fig. 14 is a schematic structural view of the n-shaped suspended storage type sand-fixing barrier in fig. 6.

Fig. 15 is a circular rubber sheet of the figure 14 extendible column and stationary coil wound three-dimensional net.

Description of reference numerals: 1. a funnel; 2. connecting a net; 3. a column; 4. a sand transporting and blocking plate; 41. a first securing latch; 411. a first extension pole; 42. a second securing latch; 412. a second extension pole; 5. a support post; 6. a base; 61. dovetail mortise and tenon type mounting columns; 62. mounting grooves; 7. a sea bed surface; 8. a highest tide line; 9. connecting ropes; 101. a first connecting ring; 102. a second connection ring; 11. a connecting rod; 12. a brush column; 121. a support column; 122. a filiform brush; 123. tow; 13. kelp; 131. building blocks; 132. a culture rope; 14. hanging plate type one-way sand barrier; 141. a column; 142. hooking; 143. a reinforcing cross bar; 144. a base; 146. a hanging plate body; 147. a blocking rail; 15.n-shaped suspended storage type sand-fixing barriers; 151. a wire coil wound three-dimensional mesh; 152. the supporting column can be lengthened; 153. a circular rubber sheet; 154. a hanging-down part; 155. a main body part; 156 the ground; 16. and (4) beach.

Detailed Description

The present invention will be more fully understood from the following detailed description, which should be read in conjunction with the accompanying drawings. Detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Therefore, specific functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed embodiment.

One aspect of the embodiment of the invention provides a suspended funnel-shaped sea sand trapping cage net, which comprises more than one baffle and a trapping cage net, wherein the baffle is arranged on the side, close to the trapping cage net, facing the sea through a fixing mechanism; the catching cage net comprises a connecting net, a funnel and connecting ropes, wherein the connecting net is provided with the connecting ropes at least used for reinforcing the connecting net, the connecting net is divided into a plurality of connecting net units at equal intervals by the connecting ropes, and the funnel is distributed on each connecting net unit; the baffle comprises a sand conveying and blocking plate and a base, and the sand conveying and blocking plate is fixedly connected with the base through a pillar.

In some preferred embodiments, the floating funnel-shaped sea sand capture cage mesh is arranged in a band-shaped area between the intertidal zones and 20m to 100m away from the highest tide line.

In some preferred embodiments, the fixing mechanism includes a first connecting ring provided on the top of the sand transporting and blocking plate, a plurality of second connecting rings provided on a sea-facing side of the connecting net, and a connecting rod passing through the first and second connecting rings.

In some preferred embodiments, the edge of the funnel is provided with a small hole, and the funnel is bound and fixed on the connecting net through the small hole.

In some preferred embodiments, a vertical column is further arranged at the intersection of the connecting ropes, and the suspension funnel-shaped sea sand trapping cage net is fixed on the sea bed surface through the vertical column.

In some preferred embodiments, the width of the trapping cage net in the direction perpendicular to the shoreline is 5-10m.

In some preferred embodiments, the connecting web is an HDPE web with a porosity of 10 to 20%.

In some preferred embodiments, the funnel is made from a HDPE sheet hot melt laminated film.

In some preferred embodiments, each funnel has an upper caliber of 15-25cm, a lower caliber of 3-5cm and a height of 15-20cm.

In some preferred embodiments, the posts have a diameter of 3-6cm and a height of 1.5-2m, such that the trapping cage net is suspended at a height of 50-100cm above the surface of the ocean floor.

In some preferred embodiments, the sand transporting and blocking plate has a smooth streamline structure.

In some preferred embodiments, the support column and the sand transporting and blocking plate are of an integrally formed structure poured by reinforced concrete, and the support column is arranged in the middle of the sand transporting and blocking plate and is positioned on the side, facing the bank, of the sand transporting and blocking plate.

In some preferred embodiments, the bottom of the sand transporting and blocking plate and the bottom of the pillar are respectively provided with a fixed bolt and an extension rod matched with the fixed bolt; the base is formed by connecting a plurality of building blocks along the shore line direction, and is connected through forked tail mortise type erection column and mounting groove between two adjacent building blocks and forms an organic whole, and every building block top have with extension rod bottom complex sunken mounting hole.

In some preferred embodiments, the width of the sand conveying and blocking plate in the direction perpendicular to the shoreline is 1.5-2.5m, the thickness is 5-10cm, and the height is 50-100cm.

The suspended funnel-shaped sea sand trapping cage net provided by the embodiment of the invention has the advantages that the baffle can prevent the front side of sea waves from directly impacting a seabed, and sediment passes through the surface of the baffle and falls into a sea bed surface at the bottom of the funnel along with water flow and waves; the collecting cage net is only open towards the bank to form a semi-closed sand collecting space, and the collecting cage net and the semi-closed sand collecting space are combined to form a suspended funnel-shaped sea sand collecting cage net which can collect sediments transmitted towards the bank and receded into the sea along with the waves and the tides; after the sand collecting space is full of sand, the height of a fixed point between the connecting rope and the stand column can be improved, and the mode of installing the extension rod under the fixing bolt is provided, so that the cage net and the baffle are integrally improved, and the sustainable utilization of the device is realized.

The invention provides a coastal erosion protection system, which comprises a kelp planting area, a suspended funnel-shaped sea sand trapping cage net, a brush column, a hanging plate type one-way sand-blocking barrier and an n-shaped suspended storage type sand-fixing barrier which are sequentially arranged along the ocean direction to the land direction, wherein the kelp planting area, the suspended funnel-shaped sea sand trapping cage net, the brush column, the hanging plate type one-way sand-blocking barrier and the n-shaped suspended storage type sand-fixing barrier are respectively parallel to a coastline and are arranged in a plurality of ways.

In some preferred embodiments, the kelp planting area is distributed with a culture rope vertically arranged in a water area with the depth of 5-20m below the lowest tide level, and the culture rope is used for planting kelp; preferably, 15-20 artificially cultivated 15 cm-long kelp young algae are clamped in each 2 m-long cultivation rope respectively; preferably, the diameter of the breeding rope is 3-4cm, the length of the breeding rope is 5-20m, and the bottom of the breeding rope is fixed on a building block buried in a seabed.

In some preferred embodiments, the brush columns are arranged in the intertidal zone along the parallel direction of the coast in a zigzag or wave-shaped manner.

In some preferred embodiments, two adjacent brush columns are close to each other, and the distance between each track is 1-3m.

In some preferred embodiments, the brush column comprises a support column and a filamentary brush affixed to the support column, the filamentary brush comprising a plurality of tows densely distributed along the length of the support column, each tow having ends extending to either side of the support column.

In some preferred embodiments, the filamentous brush has a diameter of 25-50cm and a length of 60-100cm.

In some preferred embodiments, the length of each tow end extending to both sides of the support post is 10-20cm.

In some preferred embodiments, the tow is composed of a plurality of nylon filaments having a diameter of 0.5-1mm and a tow diameter of 3-5mm.

In some preferred embodiments, the support column has a diameter of 5-10cm, a length of 1.3-1.7m, and a bottom portion that is buried to a depth of 70cm into the seabed.

In some preferred embodiments, the support post may comprise, but is not limited to, a solid cylinder of PVC.

In some preferred embodiments, the hanging plate type one-way sand-blocking barrier is arranged on a beach above a highest tide level line.

In some preferred embodiments, the hanging plate type unidirectional sand-blocking barrier comprises a plurality of upright posts which are arranged at intervals, the lower part of each upright post is fixedly connected with a base, two sides of each upright post are also connected with a plurality of hooks which are arranged at intervals along the length direction of the upright post, a plurality of hanging plates and at least one blocking cross rod are distributed between every two adjacent upright posts, the hanging plates are arranged along the horizontal direction, two ends of the upper edge of each hanging plate are respectively connected with one upright post through at least one hook, meanwhile, the lower edge of each hanging plate is hung on one side facing the shore, any two adjacent hanging plates are arranged in parallel and partially overlapped, and the blocking cross rod is arranged on one side facing the sea of the lower edge of the hanging plate at the bottommost; when the hanging plate type unidirectional sand barrier is swept by wind facing the shore, any two adjacent hanging plates are separated from each other, so that sand carried by the wind is conveyed towards the land direction through the hanging plate type unidirectional sand barrier; when the hanging plate type unidirectional sand barrier is swept by wind in the sea direction, any two adjacent hanging plates are kept in an overlapped state, and therefore sand particles carried by the wind are prevented from passing through the hanging plate type unidirectional sand barrier.

In some preferred embodiments, the hanging plate type unidirectional sand barrier comprises a plurality of channels, and the distance between two adjacent hanging plate type unidirectional sand barriers is 10-50 m.

In some preferred embodiments, the height of the pillars is 1.3m to 3m, and the cross section is 15cm × 15cm.

In some preferred embodiments, the base has a height of 0.7m to 1m and a cross-section of 30cm by 30cm.

In some preferred embodiments, the distance between two adjacent hooks is 15cm-20cm.

In some preferred embodiments, the hook may comprise a rebar ring hook, but is not limited thereto.

In some preferred embodiments, the columns may include concrete columns, but are not limited thereto.

In some preferred embodiments, the peg board includes a peg board body and a reinforcing cross bar disposed at the top of the peg board body, and the end of the reinforcing cross bar extends out of both ends of the peg board body for hanging on the hook.

In some preferred embodiments, the reinforcing rail and the peg board body are wrappingly bonded together by a hot-melt method.

In some preferred embodiments, the width of the hanging plate body is 15cm-20cm, and the thickness is 2mm-3mm.

In some preferred embodiments, the diameter of the reinforcing cross-bar is 1-2cm, and the distance between the end of the reinforcing cross-bar and the corresponding end of the pegboard body is 1.5cm.

In some preferred embodiments, the width of the overlapping portion of any two adjacent hanging panels is 2cm-4cm.

In some preferred embodiments, the peg board body may comprise, but is not limited to, a polyethylene board.

In some preferred embodiments, the reinforcing cross-bar may include, but is not limited to, rebar.

In some preferred embodiments, the diameter of the barrier rail is 1-2cm.

In some preferred embodiments, the blocking rail may include, but is not limited to, rebar.

In some preferred embodiments, for the island shoreline, the pegboard type unidirectional sand-blocking barrier is arranged in a surrounding type multiple channel.

In some preferred embodiments, the n-shaped suspended storage sand-fixing barrier is arranged on a beach above the highest tide level line perpendicular to the main wind direction.

In some preferred embodiments, the n-shaped suspended storage type sand stabilization barrier comprises a wire loop winding type three-dimensional net and a plurality of connectable posts movably connected with the wire loop winding type three-dimensional net, wherein the wire loop winding type three-dimensional net is laid along the horizontal direction, and two side edge portions naturally droop, so that a structure with an n-shaped lateral section is formed.

In some preferred embodiments, the main body part of the wire coil winding type three-dimensional net is 20-50cm away from the ground, and the lower edge of the drooping part is 10-20cm away from the ground.

In some preferred embodiments, each extendable post is sleeved with two circular rubber sheets, the wire coil wound three-dimensional net is fixed between the two circular rubber sheets, and the circular rubber sheets have the thickness of 1-2cm, the inner diameter of 2-3cm and the outer diameter of 5-10cm.

In some preferred embodiments, the n-shaped suspended storage type sand fixing barriers are arranged in a plurality of channels, and the distance between two adjacent n-shaped suspended storage type sand fixing barriers is 10-40m.

In some preferred embodiments, when the top of the sand accumulation surface is close to the bottom surface of the wire coil winding type three-dimensional net main body, the wire coil winding type three-dimensional net connected to the extendable column is lifted, or the height of the extendable column is lifted, or another extendable column is connected to the top end of the extendable column, so that the n-shaped suspended storage sand-fixing barrier is lifted.

According to the coastal erosion protection system provided by the embodiment of the invention, in seawater, the giant kelp can reduce the energy of ocean currents and wave tides in a deep water area, the cage net is trapped to reduce the waves near the lowest tide line, the sediment deposition of the sediment in the cage net is promoted, the brush columns mainly break the wave zone between the tides, and the waves are weakened, and sand particles are filtered and deposited; on the beach on the high tide line, the hanging plate type unidirectional sand-blocking barrier and the n-shaped suspended storage type sand-fixing barrier respectively play roles in unidirectional blocking wind and sand flow and fixing the sand flow for a long time; five measures with various functions are arranged in a plurality of ways parallel to a coastline according to the landform situation of the beach, and are mutually combined to form a coastal erosion protection system, so that the supply of water sand and wind sand sediments to the shore is greater than the loss to the sea from a near-shore seabed to a land beach, the siltation of the seabed and the beach is promoted, the elevation of the sea bed surface and the beach is continuously improved, the wave energy is weakened, and the occurrence of coastal erosion is inhibited; especially for sandy shorelines, the method is an effective measure for comprehensive treatment of water sand and wind sand near the shore.

Example 1

Referring to fig. 1 to 5, an embodiment of the present invention provides a suspended funnel-shaped sea sand trapping cage net, including more than one baffle and a trapping cage net, where the baffle is arranged on a side close to the trapping cage net facing sea through a fixing mechanism; the catching cage net comprises a connecting net 2, a funnel 1 and connecting ropes 9, the connecting net 2 is provided with the connecting ropes 9, the connecting ropes 9 are at least used for reinforcing the connecting net 2, the connecting net 2 is divided into a plurality of connecting net units at equal intervals by the connecting ropes 9, and the funnels 1 are respectively distributed on the connecting net units; the baffle comprises a sand conveying and blocking plate 4 and a base 6, and the sand conveying and blocking plate 4 is fixedly connected with the base 6 through a pillar 5.

In the specific implementation process, the suspended funnel-shaped sea sand trapping cage net is arranged in a strip-shaped area which is in an intertidal zone and is 820-100 m away from a highest tide level line, and the fixing mechanism comprises a first connecting ring 101 arranged at the top of the sand conveying and blocking plate 4, a plurality of second connecting rings 102 arranged on the sea-facing side surface of the connecting net 2 and a connecting rod 11 penetrating through the first connecting ring 101 and the second connecting rings 102; the edge of the funnel 1 is provided with a small hole, and the funnel 1 is bound and fixed on the connecting net 2 through the small hole; the cross part of the connecting rope 9 is also provided with an upright post 3, and the suspended funnel-shaped sea sand trapping cage net is fixed on the sea bed surface 7 through the upright post 3.

In the implementation process, the width of the trapping cage net along the direction vertical to the shoreline is 5-10m, the connecting net 2 is an HDPE net with the porosity of 10-20%, the funnels 1 are made of HDPE plates through hot-melt pressing, the upper caliber of each funnel is 15-25cm, the lower caliber of each funnel is 3-5cm, the height of each funnel is 15-20cm, the diameter of each upright column 3 is 3-6cm, and the height of each upright column is 1.5-2m, so that the trapping cage net is suspended above the surface of the sea bed by 50-100cm; the sand conveying and blocking plate 4 is of a smooth streamline structure, the width of the sand conveying and blocking plate 4 in the direction vertical to the shoreline is 1.5-2.5m, the thickness is 5-10cm, and the height is 50-100cm; the support column 5 and the sand transporting and blocking plate 4 are of an integrally formed structure formed by pouring reinforced concrete, and the support column 5 is arranged in the middle of the sand transporting and blocking plate 4 and is positioned on one side, facing the bank, of the sand transporting and blocking plate 4. The bottom parts of the sand transporting and blocking plate 4 and the pillar 5 are respectively provided with a first fixing bolt 41 and a second fixing bolt 42, and a first extension rod 411 and a second extension rod 412 which are respectively matched with the first fixing bolt 41 and the second fixing bolt 42; the base 6 is formed by connecting a plurality of building blocks along the shore line direction, and is connected through dovetail mortise-tenon type mounting post 61 and mounting groove 62 between two adjacent building blocks to form an organic whole, and every building block top has with first gim peg 41 and second gim peg 42 (or first extension rod 411 and second extension rod 412 pole) bottom complex sunken mounting hole.

Example 2

Referring to fig. 6, an embodiment of the invention provides a coastal erosion protection system, which includes a macroalgae growing area, a suspended funnel-shaped sea sand trapping cage net, a brush column 12, a hanging plate type one-way sand-blocking barrier 14 and an n-shaped suspended storage type sand-blocking barrier 15, which are sequentially arranged along a sea direction to a land direction, wherein the macroalgae growing area, the funnel-shaped suspended sea sand trapping cage net, the brush column 12, the hanging plate type one-way sand-blocking barrier 14 and the n-shaped suspended storage type sand-blocking barrier 15 are respectively parallel to a shoreline and are arranged in multiple ways.

In the specific implementation process, the kelp planting area is distributed with culture ropes 132 vertically distributed in a water area with the depth of 5-20m below the lowest tide level, and the culture ropes 132 are used for planting kelp 13; preferably, 15-20 artificially cultured 15 cm-long kelp julians are respectively clamped in each 2 m-long cultivation rope 132; the diameter of the breeding rope 132 is 3-4cm, the length is 5-20m, and the bottom of the breeding rope 132 is fixed on the building block 131 buried in the seabed.

Referring to fig. 9 to 10, the brush columns 12 are arranged in an intertidal zone in a zigzag or wavy manner in multiple rows along the parallel direction of the coast, two adjacent brush columns 12 are abutted against each other, and the distance between each row is 1 to 3m, referring to fig. 7 and 8, the brush columns 12 include a support column 121 and a filament brush 122 fixed on the support column 121, the filament brush 122 includes a plurality of filament bundles 123 densely distributed along the length direction of the support column 121, both ends of each filament bundle 123 extend to both sides of the support column 121, the diameter of the filament brush 122 is 25 to 50cm, the length of the filament brush 122 is 60 to 100cm, both ends of each filament bundle 123 extend to both sides of the support column 121 in a length of 10 to 20cm, each filament bundle 123 is composed of a plurality of nylon filaments, the diameter of the nylon filaments is 0.5 to 1mm, the diameter of the filament bundle 123 is 3 to 5mm, the diameter of the support column 121 is 5 to 10cm, the length of the filament bundle is 1.3 to 1.7m, and the depth of the bottom portion buried in the seabed is 70cm. In the implementation process, the support column 121 is a solid cylinder made of PVC.

Referring to fig. 11-13, the hanging plate type unidirectional sand barrier 14 is disposed on the beach 16 above the highest tide level line 8, the hanging plate type unidirectional sand barrier 14 includes a plurality of upright posts 141 disposed at intervals, the lower portion of each upright post 141 is fixedly connected with a base 144, and both sides of each upright post 144 are further connected with a plurality of hooks 142, the plurality of hooks 142 are disposed at intervals along the length direction of the upright post 144, a plurality of hanging plates and at least one blocking cross bar 147 are further distributed between two adjacent upright posts 144, the hanging plates are disposed along the horizontal direction, both ends of the upper edge are respectively connected with one upright post 144 through at least one hook 142, the lower edge of the hanging plate is hung on one side of the facing shore, any two adjacent hanging plates are disposed in parallel and partially overlapped, and the blocking cross bar 147 is disposed on one side of the lower edge of the hanging plate at the bottommost facing sea; when the hanging plate type unidirectional sand barrier is swept by wind towards the bank, any two adjacent hanging plates are separated from each other, so that sand carried by the wind is conveyed towards the land direction through the hanging plate type unidirectional sand barrier 14; when the hanging plate type unidirectional sand barrier 14 is swept by wind in the sea direction, any two adjacent hanging plates are kept in an overlapped state, so that sand particles carried by the wind are prevented from passing through the hanging plate type unidirectional sand barrier 14.

The hanging plate type unidirectional sand-blocking barriers 14 are multiple, the distance between every two adjacent hanging plate type unidirectional sand-blocking barriers 14 is 10m-50m, the height of each upright post 141 is 1.3m-3m, the cross section is 15cm multiplied by 15cm, the height of each base 144 is 0.7m-1m, the cross section is 30cm multiplied by 30cm, the distance between every two adjacent hanging hooks 142 is 15cm-20cm, the hanging hooks 142 adopt steel bar circular hanging hooks, the upright posts 141 adopt concrete upright posts, each hanging plate comprises a hanging plate body 146 and a reinforcing cross bar 143 arranged at the top of the hanging plate body 146, and the end parts of the reinforcing cross bar 143 extend out of the two ends of the hanging plate body 146 and are used for being hung on the hanging hooks 142; in specific implementation, the reinforcing cross bar 143 and the hanging plate body 146 are bonded together in a wrapping manner by a hot melting method.

In the embodiment, the width of the hanging plate body 146 is 15cm-20cm, the thickness is 2mm-3mm, the diameter of the reinforcing cross rod 143 is 1-2cm, the distance from the end part of the reinforcing cross rod 143 to the corresponding end part of the hanging plate body 146 is 1.5cm, and the width of the overlapped part of any two adjacent hanging plates is 2cm-4cm; the hanging plate body 146 is made of polyethylene plates, the reinforcing cross rod 143 is made of steel bars, the diameter of the blocking cross rod 147 is 1-2cm, the blocking cross rod 147 is made of steel bars, and for island shorelines, the hanging plate type unidirectional sand-blocking barrier 14 is arranged in a surrounding type in a plurality of ways.

Referring to fig. 14, the n-shaped suspended storage type sand-fixing barrier 15 is arranged on the beach 16 above the highest tide level line 8 perpendicular to the main wind direction, the n-shaped suspended storage type sand-fixing barrier 15 includes a wire-loop wound three-dimensional net 151 and a plurality of extendable columns 152 movably connected with the wire-loop wound three-dimensional net 151, wherein the wire-loop wound three-dimensional net 151 is laid along the horizontal direction and the two side edge portions naturally droop, thereby forming a structure with an n-shaped lateral section; the distance between the main body part 155 of the wire coil wound three-dimensional net 151 and the ground 156 is 20-50cm, and the distance between the lower edge of the drooping part 154 and the ground 156 is 10-20cm; each extendable post 152 is sleeved with two circular rubber sheets 153, as shown in fig. 15, the wire coil wound three-dimensional net 151 is fixed between the two circular rubber sheets 153, and the circular rubber sheets 153 have a thickness of 1-2cm, an inner diameter of 2-3cm, and an outer diameter of 5-10cm.

In the specific implementation process, the n-shaped suspended storage type sand fixing barriers 15 are arranged in a plurality of channels, and the distance between two adjacent n-shaped suspended storage type sand fixing barriers 15 is 10-40m; when the top of the sand accumulation surface is close to the bottom surface of the wire coil winding type three-dimensional net main body, the wire coil winding type three-dimensional net 151 connected to the connectable length column 152 is lifted, or the height of the connectable length column 152 is lifted, or another connectable length column 152 is connected to the top end of the connectable length column 152, so that the n-shaped suspended storage type sand-fixing barrier 15 is lifted.

In addition, the inventors of the present invention have also made experiments with other materials, process operations, and process conditions described in the present specification with reference to the above examples, and have obtained preferable results.

While the invention has been described with reference to illustrative embodiments, it will be understood by those skilled in the art that various other changes, omissions and/or additions may be made and substantial equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims. Moreover, unless specifically stated any use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.

Claims (10)

1. A suspended funnel-shaped sea sand collecting cage net is characterized by comprising more than one baffle and a collecting cage net, wherein the baffle is arranged on the side, close to the collecting cage net, facing the sea through a fixing mechanism; the catching cage net comprises a connecting net, a funnel and a connecting rope, wherein the connecting net is provided with the connecting rope, the connecting rope is at least used for reinforcing the connecting net, the connecting rope divides the connecting net into a plurality of connecting net units at equal intervals, and the connecting net units are respectively provided with the funnel; the baffle comprises a sand conveying and blocking plate and a base, and the sand conveying and blocking plate is fixedly connected with the base through a pillar.

2. The suspended funnel-shaped sea sand capture cage net of claim 1, wherein: the suspended funnel-shaped sea sand trapping cage net is arranged in a strip-shaped area which is between the intertidal zone and 20m to 100m away from the highest tide line;

and/or the fixing mechanism comprises a first connecting ring arranged at the top of the sand conveying and blocking plate, a plurality of second connecting rings arranged on the sea side surface of the connecting net and a connecting rod penetrating through the first connecting ring and the second connecting rings; and/or the edge of the funnel is provided with a small hole, and the funnel is bound and fixed on the connecting net through the small hole; and/or an upright post is also arranged at the cross part of the connecting rope, and the suspended funnel-shaped sea sand trapping cage net is fixed on the sea bed surface through the upright post.

3. The suspended funnel-shaped sea sand capture cage net of claim 2, wherein: the width of the trapping cage net along the direction vertical to the shoreline is 5-10m; and/or the connecting net adopts an HDPE net with the porosity of 10-20%; and/or the funnel is made of HDPE plate hot-melt laminated film; and/or the upper caliber of each funnel is 15-25cm, the lower caliber is 3-5cm, and the height is 15-20cm; and/or the diameter of the upright post is 3-6cm, the height of the upright post is 1.5-2m, and the trapping cage net is suspended above the sea bed surface by 50-100cm.

4. The suspended funnel-shaped sea sand capture cage net of claim 1, wherein: the sand conveying and blocking plate is of a smooth streamline structure; and/or the support column and the sand conveying and blocking plate are of an integrally formed structure poured by reinforced concrete, and the support column is arranged in the middle of the sand conveying and blocking plate and is positioned on the shore-facing side of the sand conveying and blocking plate; and/or the bottom of the sand conveying and blocking plate and the bottom of the support are respectively provided with a fixed bolt and an extension rod matched with the fixed bolt; the base is formed by connecting a plurality of building blocks along the shore line direction, and is connected through forked tail mortise type erection column and mounting groove between two adjacent building blocks and forms an organic whole, and every building block top have with extension rod bottom complex sunken mounting hole.

5. The suspended funnel-shaped sea sand capture cage net of claim 4, wherein: the width of the sand conveying and blocking plate along the direction vertical to the shoreline is 1.5-2.5m, the thickness is 5-10cm, and the height is 50-100cm.

6. A coastal erosion protection system is characterized by comprising a giant kelp planting area, a suspended funnel-shaped sea sand collecting cage net, a hairbrush column, a hanging plate type one-way sand blocking barrier and an n-shaped suspended storage type sand fixing barrier which are sequentially arranged in the direction from the sea to the land, wherein the suspended funnel-shaped sea sand collecting cage net, the hairbrush column, the hanging plate type one-way sand blocking barrier and the n-shaped suspended storage type sand fixing barrier are arranged in the direction from the sea to the land, and the giant kelp planting area, the suspended funnel-shaped sea sand collecting cage net, the hairbrush column, the hanging plate type one-way sand blocking barrier and the n-shaped suspended storage type sand fixing barrier are respectively parallel to a coastline and are arranged in a multi-channel mode.

7. The coastal erosion protection system of claim 6, wherein: the kelp planting area is distributed with culture ropes vertically arranged in a water area with the depth of 5-20m below the lowest tide level line, and the culture ropes are used for planting kelp; preferably, 15-20 artificially cultured 15 cm-long megalophyta juvenile algae are clamped in each 2 m-long breeding rope; preferably, the diameter of the breeding rope is 3-4cm, the length of the breeding rope is 5-20m, and the bottom of the breeding rope is fixed on a building block buried in a seabed.

8. The coastal erosion protection system of claim 6, characterized in that: the brush columns are distributed in a zigzag or wavy manner in the intertidal zone along the parallel direction of the coast; and/or the two adjacent brush columns are mutually abutted, and the distance between every two adjacent brush columns is 1-3m; and/or the hairbrush column comprises a support column and a filamentous hairbrush fixed on the support column, the filamentous hairbrush comprises a plurality of tows which are densely distributed along the length direction of the support column, and two ends of each tow extend to two sides of the support column; and/or the diameter of the filamentous brush is 25-50cm, and the length of the filamentous brush is 60-100cm; and/or the length of the two ends of each tow extending to the two sides of the supporting column is 10-20cm; and/or the tows are composed of a plurality of nylon filaments, the diameter of the nylon filaments is 0.5-1mm, and the diameter of the tows is 3-5mm; and/or the diameter of the support column is 5-10cm, the length is 1.3-1.7m, and the depth of the bottom embedded into the seabed is 70cm; and/or the supporting column comprises a solid cylinder made of PVC.

9. The coastal erosion protection system of claim 6, characterized in that: the hanging plate type unidirectional sand barrier is arranged on a beach above a highest tide level line, and/or comprises a plurality of stand columns arranged at intervals, the lower part of each stand column is fixedly connected with a base, a plurality of hooks are further connected to two sides of each stand column, the hooks are arranged at intervals along the length direction of the stand columns, a plurality of hanging plates and at least one blocking cross rod are further distributed between every two adjacent stand columns, the hanging plates are arranged along the horizontal direction, two ends of the upper edge of each hanging plate are respectively connected with one stand column through at least one hook, meanwhile, the lower edge of each hanging plate is vertically placed on one side of a revetment, any two adjacent hanging plates are arranged in parallel and partially overlapped, and the blocking cross rod is arranged on one side of the bottommost hanging plate, which is facing the sea, of the lower edge of the hanging plate; when the hanging plate type unidirectional sand barrier is swept by wind facing the shore, any two adjacent hanging plates are separated from each other, so that sand carried by the wind is conveyed towards the land direction through the hanging plate type unidirectional sand barrier; when wind blows towards the sea direction to sweep the hanging plate type unidirectional sand barrier, any two adjacent hanging plates are kept in an overlapped state, so that sand carried by wind is prevented from passing through the hanging plate type unidirectional sand barrier;

and/or the hanging plate type unidirectional sand-blocking barriers are multiple, and the distance between every two adjacent hanging plate type unidirectional sand-blocking barriers is 10-50 m; and/or the height of the upright post is 1.3m-3m, and the section is 15cm multiplied by 15cm; and/or the height of the base is 0.7m-1m, and the section is 30cm multiplied by 30cm; and/or the distance between two adjacent hooks is 15cm-20cm; and/or the hook comprises a steel bar circular hook; and/or, the column comprises a concrete column;

and/or the hanging plate comprises a hanging plate body and a reinforcing cross rod arranged at the top of the hanging plate body, and the end part of the reinforcing cross rod extends out of the two ends of the hanging plate body and is used for being hung on a hook; and/or the reinforcing cross bar and the hanging plate body are bonded together in a wrapping manner by a hot melting method; and/or the width of the hanging plate body is 15cm-20cm, and the thickness is 2mm-3mm; and/or the diameter of the reinforcing cross rod is 1-2cm, and the distance between the end part of the reinforcing cross rod and the corresponding end part of the hanging plate body is 1.5cm; and/or the width of the overlapping part of any two adjacent hanging plates is 2cm-4cm; and/or the hanging plate body comprises a polyethylene plate; and/or, the reinforcing cross-bar comprises reinforcing steel; and/or the diameter of the barrier cross rod is 1-2cm; and/or, the blocking rail comprises a rebar;

and/or, for the island shoreline, the sand-blocking and sand-dredging integrated unidirectional sand barrier is arranged in a surrounding type multi-channel manner.

10. The coastal erosion protection system of claim 6, wherein: the n-shaped suspended storage type sand stabilization barrier is arranged on a beach above a highest tide level line in a manner of being vertical to a main wind direction, and/or the n-shaped suspended storage type sand stabilization barrier comprises a wire coil wound three-dimensional net and a plurality of connectable long columns movably connected with the wire coil wound three-dimensional net, wherein the wire coil wound three-dimensional net is laid along the horizontal direction, and the edge parts of two sides of the wire coil wound three-dimensional net naturally droop so as to form a structure with an n-shaped lateral section;

and/or the distance between the main body part of the wire coil winding type three-dimensional net and the ground is 20-50cm, and the distance between the lower edge of the sagging part and the ground is 10-20cm;

and/or each connectable post is sleeved with two circular rubber sheets, the wire coil wound three-dimensional net is fixed between the two circular rubber sheets, and the circular rubber sheets are 1-2cm in thickness, 2-3cm in inner diameter and 5-10cm in outer diameter;

and/or the n-shaped suspended storage type sand fixing barriers are arranged in a plurality of channels, and the distance between two adjacent n-shaped suspended storage type sand fixing barriers is 10-40m;

and/or when the top of the sand accumulation surface is close to the bottom surface of the wire coil winding type three-dimensional net main body part, the wire coil winding type three-dimensional net connected to the extendable column is lifted in height, or the height of the extendable column is lifted, or the top end of the extendable column is connected with another extendable column, so that the n-shaped suspended storage type sand stabilization barrier is lifted.

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