CN114790719A - Environment-friendly anti-silting device for port and channel and working method thereof - Google Patents

Abstract

The invention provides an environment-friendly anti-silting device for a port channel, which comprises a concrete foundation pile, wherein a plurality of vertical tire columns formed by tires which are sequentially stacked from top to bottom are installed on the concrete foundation pile, a horizontal sand separating cylinder is connected to the side of the concrete foundation pile through a cable chain, the sand separating cylinder is a cylindrical shell, one end of the sand separating cylinder is connected with the concrete foundation pile through the cable chain, and the end surface of the sand separating cylinder, which is close to one end of the concrete foundation pile, is not closed with the side, which is close to the water surface, of the circumferential outer wall of the sand separating cylinder. According to the invention, a vortex flow field is formed at the rear of the tire column to scour the seabed so as to prevent siltation, the concrete foundation provides stability for the whole device, the sand separating cylinder prevents or weakens the formation of sand ridges between the two columns, and meanwhile, under the action of sailing ship travelling waves and propeller wake flows, the effect which is unexpected in the aspect of preventing or weakening siltation of a channel harbor pool can be achieved; when adopting this device twin columns tandem, the range line of arranging along the device is equal to a flushing line, plays the effect that prevents the siltation, has advantages such as safe environmental protection, green ecology, simple structure, easily installation, construction convenience.

Description

Environment-friendly anti-silting device for port and channel and working method of environment-friendly anti-silting device

Technical Field

The invention relates to an environment-friendly anti-silting device for a port channel and a working method thereof.

Background

The channel is a channel for ships to sail, so that calm water flow conditions are needed to ensure the ships to sail. However, because of the calm water flow (inadequate hydrodynamic conditions), ports and waterways in the world have varying degrees of silting, with the consequence that the water depth is reduced and does not provide sufficient draft, ultimately impeding the vessel's navigation. A port with a serious siltation even becomes a waste port, causing serious economic loss to local residents. In engineering, regular dredging is usually adopted to prevent silt, however, the cost of the periodically-invested dredging engineering is huge every year, a dredging ship occupies a channel to influence normal logistics of a port, and tail gas and noise of the dredging ship pollute the environment. In the stages of port site selection, port design and maintenance after construction, the problem of siltation needs to be closely noticed all the time, so that the siltation trend in the later period needs to be predicted at the beginning of construction, and the siltation prevention and siltation reduction measures which can be adopted are considered.

In the conventional port engineering, a breakwater or an island embankment is generally built to prevent silt from depositing, or a spur dike is built in an inland waterway to prevent upstream coming silt by using water-restraining to attack silt, or a plurality of deep pits are dug on the waterway to accumulate silt, for example, when a port is built at a lake outlet, a pilot dike is preferably built, and when a port is built at a strait, barriers at the port and two sides are preferably removed to ensure smooth flow. The limitations of the above-mentioned various silt-preventing and silt-reducing measures are: firstly, the hydraulic structure has long construction period and high cost, and the dimension of the structure can be changed along with the change of water flow factors due to the fact that experiments are needed to determine the size of the structure in the feasibility analysis process, so that uncertainty is generated; on the other hand, the building is required to be dismantled after being constructed, so that the building is difficult and high in cost, and the original ecological environment of a river or a harbor basin is seriously influenced.

Disclosure of Invention

In view of the above, the present invention provides an environment-friendly anti-silting device for a port and a channel and a working method thereof, which solve the problems of the prior art and have a good anti-silting effect under the action of the traveling wave of a channel ship and the wake flow of a propeller. The device not only can reasonably utilize the waste tires and change waste into valuables, but also can reduce the investment in dredging engineering.

The invention is realized by adopting the following scheme: the utility model provides a siltation device is prevented to harbour channel of environmental protection, includes the concrete foundation pile, install a plurality of vertical tire posts that the tire that from top to bottom piles up in proper order constitutes on the concrete foundation pile, concrete foundation pile side is connected with the horizontally through the cable chain and divides a husky section of thick bamboo, it is cylindrical casing to divide a husky section of thick bamboo, divide husky one end that leads to pass through the cable chain and be connected with the concrete foundation pile, divide the husky section of thick bamboo to be close to the terminal surface of concrete foundation pile one end and divide husky section of thick bamboo circumference outer wall to be close to the water face side and not seal.

Further, install the frame that is used for fixed tire post on the concrete foundation pile, the frame includes end circle frame, circumference equipartition has a plurality of fixed frames on the end circle frame, fixed frame is the Jiong style of calligraphy, and fixed frame's a foot is fixed in end circle frame, and another foot is located the circumference of end circle frame, the section height of distance cooperation tire between fixed frame's two feet.

Furthermore, the foot parts at the outer sides of the adjacent fixed frames are connected through at least one arc-shaped frame.

Further, the concrete foundation pile comprises a self-weight base, the self-weight base is provided with an installation platform, a binding member is pre-embedded in the installation platform, and the bottom round frame is fixedly connected with the installation platform through the binding member.

Further, the distance between the sand separating cylinder and the frame is 5-10 times of the diameter of the tire column.

Furthermore, the number k of the rectangular frames and the diameter D of the tire meet the requirement that k =4 when D is less than or equal to 2 meters, and k =4+ D/2 when D is greater than 2 meters.

Further, the chain is formed by connecting long rod members made of polytetrafluoroethylene.

Furthermore, the left edge and the right edge of one end, close to the concrete foundation pile, of the sand separating cylinder are connected with the two sides of the mounting platform through cable chains.

Furthermore, a latticed opening is formed in the circumferential outer wall of the sand separating cylinder, close to the water surface side.

An operation method of an environment-friendly anti-silting device for a port channel comprises the following steps:

step 1: and observing the hydrological condition of a channel needing to be settled and the sailing condition of a ship in advance, and defining a layout line.

Step 2: after the prefabrication of the concrete foundation piles is finished, the concrete foundation piles are placed in a channel needing to be silted, the concrete foundation piles are buried to the designed depth along the arrangement line during placement, and the site around the pile foundation is leveled;

and 3, step 3: transporting waste tires to a wharf base, and placing the tires in a support to enable the tires to be divided into a plurality of units forming a vortex field;

and 4, step 4: after each assembled vortex generating unit is anchored and positioned, the vortex generating units are uniformly arranged at intervals along the directions of ship traveling waves and propeller wake flow, the distance between the centers of the tire columns of the adjacent vortex generating units is more than 5 times of the diameter of the bottom circle of the support, a proper position is selected, and a diver enters water to install the tire columns and the sand separating cylinder.

And 5: a large amount of strong ship travelling waves and propeller wake flows are generated by ship movement, the tire columns can capture the ship travelling waves and the propeller wake flow turbulent flow areas, and a continuous separation area is created by the double columns in series, so that the scouring effect of water flow on the bottom of water flow is increased.

Compared with the prior art, the invention has the following beneficial effects: 1. the device is divided into three main structures, namely a tire column, a concrete foundation pile and a sand separating cylinder. Form sand ridge easily between two posts at the scouring process, lead to the scouring effect between the post to weaken, its reason is that the front column rear portion forms the flow field and takes away silt thereupon, and silt meets a back post when backward moving and hinders, leads to the silt siltation along the line. Therefore, the sand separating cylinder is arranged, the silt taken away from the rear part of the front column can be effectively separated to two sides, the formation of sand ridges is effectively weakened, and the sand separating cylinder and the front two devices form the whole body to control the water depth of a channel or a harbor basin.

2. The concrete foundation pile is formed by prefabricating and then is put into the anti-silting destination, so that the construction cost is greatly reduced compared with the construction method of piling on water. The concrete foundation pile comprises upper portion mounting platform and lower part dead weight base, and the effect of two parts is: in order to achieve the purpose of stabilizing the tire column, the tire column and the mounting platform are fixed together by a binding member embedded in concrete, and the tire column is subjected to water flow impact force, buoyancy on the tire column and the like in water. Meanwhile, after the renovation is finished, except that the concrete foundation pile can not be recycled, the tire column and the sand separating cylinder can be dismounted and recycled, the subsequent maintenance cost is not needed, and the money and the labor are saved.

3. For inland waterway, according to the change rule of flow rate in different water level periods, the flow rate of a shoal river section in the dry water period is high, the flow rate of a deep-channel river section is low, and the flow rate in the flood period is opposite. When the dry season, arrange the device and can effectively utilize the big characteristics of shoal velocity of flow and make and form sufficient stable swirl between the stake, unstable flow field can be very fast reaches silt and starts the velocity of flow, makes the silt of shoal take down the way by the washing, and the sufficient depth of water that provides for the channel of current river avoids the ship to put up a rest or is damaged, has maintained property safety.

4. In the ice flood period, the downstream is always in a frozen state, a large amount of ice and water on the upstream is gathered to the downstream to form a large ice flood peak, ice is blocked and blocked in a curved and narrow river section easily, the water level is blocked, and the ice flood disaster is caused. During this period, on the one hand, the conventional dyke body silting structure is easily damaged by the impact of the flowing ice, and the damaged debris becomes an obstacle which is difficult to clean and instead silts up the river channel. The invention adopts flexible tire material, is not easy to damage in water and has reliable structure. On the other hand, the dike head, the dike body and the dike root of the traditional siltation prevention dike structure are connected with an underwater foundation to block the running ice from advancing, so that the water level of the dike in the ice season is increased, and the serious influence is brought to a downstream reservoir.

5. During passage in port channels, ships are busy and generate a large amount of powerful ship waves and propeller wakes. The invention uses the tire cylinder model to capture the ship wave and the propeller wake turbulence area, and creates a continuous separation area through the double columns in series, thereby increasing the scouring effect of water flow on the bottom of the water flow. .

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a tire post and bracket assembly of the present invention;

FIG. 3 is a schematic illustration of a concrete foundation of the present invention;

fig. 4 is a schematic view of the sand separating cylinder of the present invention.

In the figure: 1-concrete foundation pile; 2-a tire post; 3-a sand separating cylinder; 4-a chain; 5-a frame; 6-bottom round frame; 7-a fixed frame; 8-arc frame; 9-self-weight base; 10-mounting a platform; 11-grid-like openings; 12-tyre.

Detailed Description

The invention is further explained by the following embodiments in conjunction with the drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As shown in fig. 1-4, this embodiment provides a harbour channel siltation prevention device of environmental protection, including concrete foundation pile 1, install a plurality of vertical tire posts 2 that from top to bottom pile up in proper order tire 12 and constitute on the concrete foundation pile, concrete foundation pile side is connected with horizontally through the cable chain and divides a husky section of thick bamboo 3, divide a husky section of thick bamboo to be cylindrical casing, divide husky one end of leading to pass through cable chain 4 and be connected with concrete foundation pile, divide the terminal surface that a husky section of thick bamboo is close to concrete foundation pile one end and divide husky section of thick bamboo circumference outer wall to be close to the water face side and do not seal.

The anti-scouring structure is different from the anti-silting structure, and the anti-scouring structure aims at preventing water flow from scouring the protective measures of a riverbed and a bank slope so as to maintain the safe operation of each building of the hub; the anti-silting structure is intended to maintain a normal water depth in the waterway or the harbor basin, and to prevent the ship from running stranded or failing to normally sail in the water area due to the reduced water depth. The invention adopts the theory in the classical fluid mechanics, namely cylindrical streaming, as the theoretical support. According to the boundary layer theory proposed by Prandtl 1904, flow at high reynolds numbers around an object can be divided into boundary layers and out-flow regions. When fluid flows around the cylinder, the pressure difference generated in the boundary layer can make the fluid separate from the surface of the cylinder from a certain position, and backflow occurs nearby, which is called boundary layer separation phenomenon. In this separation zone, the turbulent flow velocity is large and the flow field changes very drastically, leading to the formation of scour pits. Thus, the application of boundary layer theory requires a powerful power source. Thus, ship's traveling waves and propeller wakes in the channel can be the source of power if they can be successfully captured. In the ship traveling wave calculation theory, an included angle of about 19 degrees is formed between a scattered wave and a ship route (the included angle between a connecting line of intersection points of transverse waves and scattered wave crests and the ship route is about 19 degrees), the included angle between the scattered wave crest direction and the diffusion direction is about 35 degrees, the diffusion direction of the scattered wave is not influenced by the ship speed under the deep water condition, and the scattered wave is rarely attenuated within a relatively long diffusion distance. In the wake flow of the propeller, the disturbed accelerated water flow flowing out of the rear of the propeller can be decomposed into three component speeds, namely axial induced speed, tangential induced speed and radial induced speed. The invention aims to capture the ship wave and the propeller wake turbulence area by using a tire cylinder model, and create a continuous separation area by double columns in series, thereby increasing the scouring effect of water flow on the bottom of the water flow. However, after the tire post is installed, due to the installation gap between the tire and the bracket, ship travelling waves and propeller wake flow cannot be completely blocked in front of the tire post, namely: a small amount of water and silt flow through the gaps disturbs the flow field in the rear portion. Due to the disturbing effect of the gap water flow, a post-column sand ridge is inevitably generated, which is formed after about 5D (D is the tire frame column diameter) and is perpendicular to the tire column. In order to reduce the height of the sand ridge, a sand separating cylinder is arranged.

In this embodiment, install the frame 5 that is used for fixed tire post on the concrete foundation pile, the frame includes end circle frame 6, the circumference equipartition has a plurality of fixed frame 7 on the circle frame of end, fixed frame is the Jiong style of calligraphy, and fixed frame's a foot is fixed in end circle frame, and another foot is located the circumference of end circle frame, and the section height of distance cooperation tire between fixed frame's two feet, the effect of frame is: on one hand, the tire can be conveniently loaded, on the other hand, the tire can be firmly fixed on the concrete foundation pile, the tire column formed by the tires and the rack can enable the lower water flow to form a horseshoe vortex around the support, and a tail vortex is formed at the rear, so that two flow fields are formed at the bottom of the water flow. The size of the flow field is related to the diameter and the height of the tire column, and the other two structural dimensions are controlled by the support.

In this embodiment, the feet of the adjacent fixed frames are connected by at least one arc frame 8.

In this embodiment, the concrete foundation pile includes dead weight base 9, and the dead weight base is provided with mounting platform 10, and the last pre-buried ligature component that has of mounting platform, end circle frame link firmly with mounting platform through the ligature component, and the concrete foundation pile has the tripartite effect: 1. at the bottom of the water, the flow field is complex and the water flow speed is high, once the tire column is installed, the tire column can be subjected to huge shaking force by the vortex flow field generated nearby, and the tire column can be easily washed away without safe fixation. In order to achieve the purpose of stabilizing the tire column, the tire column and the mounting platform are fixed together by a binding member embedded in concrete. In water, the tire column is subjected to ship traveling waves, propeller wake flow impact force, buoyancy on the tire column, and the like, so that the lower dead weight base is arranged and fixed to provide stability for the first part of components, and the height of the lower dead weight base is not less than 1 m; 2. because the foundation has a large self-weight and a raised plane, the foundation can be used as a base for growth of coral reefs, seaweed, shells and the like, and the coral reefs, the seaweed, the shells and the like also provide habitat and spawning sites for marine organisms, so that a good seabed ecological structure is formed, and virtuous cycle is realized; 3. because the concrete foundation is arranged according to lines and has certain density, and the sludge is squeezed out and reduced during arrangement due to the large weight of the concrete foundation. If the thickness of the channel silt is large, the height of the concrete foundation is increased, and the phenomenon that the scouring effect is weakened due to uneven settlement is avoided.

In this embodiment, the self-weight base is embedded in water, and when the diameter of the pile is larger, the base should be embedded for 0.7-0.9 h (h is the height of the tire support).

In the embodiment, since the post-column sand ridge is generated at 5-10 times of the diameter of the tire column, the distance between the sand separating cylinder and the frame is 5-10 times of the diameter of the tire column.

In this embodiment, the latticed openings 11 are arranged on the circumferential outer wall of the sand separating cylinder close to the water surface side, ship traveling waves and propeller wake flows enter from the upper side of the column and cannot flow out from the bottom, and the water is forced to split around to prevent or weaken the formation of sand ridges, so that on one hand, the sand separating cylinder effectively prevents the silts from silting up in the arrangement line; on the other hand, the silt is divided to the beaches at two sides, so that the growth of animals and plants near the beaches is facilitated, the beach land is stabilized, and the water and soil loss is reduced.

In the embodiment, the number k of the rectangular frames and the diameter D of the tire meet the requirement that k =4 when D is less than or equal to 2 meters, and k =4+ D/2 when D is greater than 2 meters.

In this embodiment, the range of action of a single device is limited, whereas the range of the channel and basin is usually large, thus requiring a series of devices to be arranged along the ship's travelling wave and propeller wake, with the multiple devices acting in the same way as a twin column tandem. The flow state of the double-column tandem is mainly characterized by (1) a single vortex shedding form (2) a boundary layer adhesion (3) a vortex shedding impact form. Research shows that when the ratio of L/D is 1< L/D <5, (L is the distance between the centers of adjacent columns) under the condition of not considering Reynolds number, the L/D is considered to be smaller in the distance range at the moment, no flow passes between the columns, the front and rear columns are expressed into a whole, boundary layers are separated from two sides of the front column and fall off behind the rear column, the rear column is completely shielded in the boundary layer of the front column, at the moment, the device cannot fully utilize a vortex flow field generated by ship traveling waves and propeller wake flows captured by the first device, and the utilization rate of the vortex is extremely low; the arrangement range of the device is more than or equal to 5 in terms of L/D, at the moment, the device is in a vortex shedding and impacting state, a boundary layer of a front column has sufficient space to form a vortex, the vortex is shed and impacted on a rear column, a row of karman vortex streets are formed behind the rear column while the vortex of the front pile is just reduced, and at the moment, a scouring vortex field further expands the range; the alignment line along the device when a series of devices are arranged is equivalent to a flush line, serving to prevent fouling.

Therefore, in order to fully utilize the flushing pit formed behind the device, the arrangement range should satisfy:

L/D is more than or equal to 5 (L is the distance between the centers of adjacent columns) (D is the diameter of the tire frame column).

Meanwhile, when a ship passes through, the ship travelling wave and the propeller wake flow can be effectively captured, and due to the fact that the friction on the surface of the tire is large, horseshoe-shaped vortexes and wake vortexes are effectively increased, and a scouring flow field is formed.

The height of the tire column is set to an optimum height in consideration of the change in river depth: on one hand, the device should meet the optimal height required by the place for forming the swirling flow so as to achieve the optimal effect of scouring; on the one hand, in the navigation channel where the ship also runs, the condition that the top does not scrape against the ship (namely the surplus ship draft) should be considered, and the damage to the ship and the displacement of the device are avoided. And the height should satisfy:

h is less than or equal to 0.5H (H is the height of the device and H is the water depth).

In this embodiment, the chain is formed by linking long rod members made of polytetrafluoroethylene, the frame should be made of a material with high rigidity, corrosion resistance and environmental protection, and can be made of a material made of high polymer such as polypropylene, polyvinyl chloride and the like, the tires and the frame should be fixed by waterproof, wear-resistant and corrosion-resistant cables, and the tires and the frame should be made of cables with a plurality of strands of polyvinyl formal fibers and stainless steel wires arranged in the polyvinyl formal fibers, and meanwhile, the tires and the frame should be flexibly connected, so that the flow rate weakening effect is improved.

In this embodiment, it is particularly advantageous to utilize used vehicle tires for this purpose. Used tires are used in the ocean floor and represent a relatively low risk of contamination because they slowly degrade over many years without leaching out toxic or harmful substances. Because the waste tires are adopted in the embodiment, the basic sizes of the tires are unified as much as possible for the convenience of construction.

In this embodiment, the left edge and the right edge of one end, close to the concrete foundation pile, of the sand separating cylinder are connected with the two sides of the mounting platform through cable chains.

An operation method of an environment-friendly anti-silting device for a port channel comprises the following steps:

step 1: observing the hydrological condition and the ship navigation condition of a channel needing to be settled in advance, defining a layout line, when arranging the device, arranging the device along the line and reducing or not generating radian of the layout line, otherwise, influencing the scouring effect, wherein the layout line is arranged at the middle point of the channel or the position with larger water depth, and comprehensively considering the ship navigation lines of the channel, and the number of the layout lines is more than or equal to 2.

And 2, step: after the prefabrication of the concrete foundation piles is finished, the concrete foundation piles are placed in a channel needing to be silted, the concrete foundation piles are buried to the designed depth along the arrangement line during placement, and the site around the pile foundation is leveled;

and 3, step 3: transporting waste tires to a wharf base, and placing the tires in a support to enable the tires to be divided into a plurality of units forming a vortex field;

and 4, step 4: after each assembled vortex generating unit is anchored and positioned, the vortex generating units are uniformly arranged at intervals along the directions of ship traveling waves and propeller wake flow, the distance between the centers of the tire columns of the adjacent vortex generating units is more than 5 times of the diameter of the bottom circle of the support, a proper position is selected, and a diver enters water to install the tire columns and the sand separating cylinder.

And 5: a large amount of strong ship travelling waves and propeller wake flows are generated by ship movement, the tire columns can capture the ship travelling waves and the propeller wake flow turbulent flow areas, and a continuous separation area is created by the double columns in series, so that the scouring effect of water flow on the bottom of water flow is increased.

In the process of installation, the arranged elements can be installed when the foundation of the pile foundation is installed. Alternatively, the lined structure may be installed for repair by placing the lined elements much larger than the scour range of the seabed mounted foundation or pile or filling the scour range and placing the lined elements over the fill.

The anti-scouring structure has advanced anti-scouring principle and simple structure, so that auxiliary ships and equipment required by offshore construction are as few as possible, and the time of underwater construction operation is relatively short; after being settled in place, the device can act almost immediately to start washing and prevent siltation.

When the anti-scouring structure is used, by effectively capturing ship traveling waves and propeller wake flows, silt in water is discharged from the center line of a channel to the outside through the sand separating cylinder and is distributed to a beach on the river side in the sedimentation process, on one hand, the sand ridge is reduced or weakened, on the other hand, a quite compact silt layer can be formed, and finally, the beach which is fused with the shore into a whole is formed, the beach provides an environment for the growth of water supply organisms, and the requirements of green ecology and marine environment protection are met;

this scour prevention structure marine construction cost is far less than the huge anti-silting measure of later maintenance cost such as traditional throwing and filling building stones silt to can lift off and retrieve tire frame post and divide a husky section of thick bamboo after treating the renovation, need not follow-up maintenance cost, save money laborsaving.

The present embodiment has made relevant tests (and references relevant documents) for the influence of tires on the environment, including structural optimization for capturing ship travelling waves and propeller wakes, and is applied to the scouring effect research in port and channel, and tests for the influence of tires on groundwater, organic compounds and inorganic compounds, etc., and the test results show that although the content of some metals (such as iron and manganese) is increased in the process of placing the tires in landfills, the influence of tire leachate on the groundwater for drinking water is limited, and harmful substances such as benzene, silver, cadmium, selenium, etc. are not found in the leachate, no matter is the whole tire or the broken tire. At present, relevant experiments at home and abroad show that the influence of the waste tires on the environment is very limited under the water environment condition.

In this example, to prevent oil contamination from the used tires from contaminating the ocean, each tire needs to be washed with soapy water to remove any residual oil before use.

Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.

If the invention discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the orientations or positional relationships indicated for indicating the positional relationships such as "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, applied in any of the technical aspects of the present disclosure described above are based on the orientations or positional relationships shown in the drawings and are only for convenience of describing the present disclosure, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as limiting the present disclosure, and the terms used for indicating the shapes applied in any of the technical aspects of the present disclosure described above are meant to include shapes similar, analogous or approximate thereto unless otherwise stated.

Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.

Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the invention, it is intended to cover all modifications within the scope of the invention as claimed.

Claims (10)

1. The utility model provides a harbour channel siltation prevention device of environmental protection, its characterized in that, includes the concrete foundation pile, install a plurality of vertical tire posts that from top to bottom pile up in proper order tire component on the concrete foundation pile, concrete foundation pile side is connected with the husky section of thick bamboo of horizontally branch through the cable chain, it is cylindrical casing to divide a husky section of thick bamboo, divide husky one end of leading to pass through the cable chain and be connected with the concrete foundation pile, divide the husky section of thick bamboo to be close to the terminal surface of concrete foundation pile one end and divide husky section of thick bamboo circumference outer wall and be close to the water face side and do not seal.

2. The environment-friendly anti-siltation device for port and channel as claimed in claim 1, wherein the concrete foundation pile is provided with a frame for fixing the tire column, the frame includes a bottom circular frame, a plurality of fixing frames are evenly distributed on the circumference of the bottom circular frame, the fixing frames are Jiong-shaped, one leg of each fixing frame is fixed on the bottom circular frame, the other leg is located in the circumference of the bottom circular frame, and the distance between the two legs of the fixing frame is matched with the section height of the tire.

3. The eco-friendly harbour channel siltation preventing device according to claim 2, wherein the legs of the adjacent fixed frames are connected to each other by at least one arc frame.

4. The environment-friendly anti-silting device for the harbor channel as claimed in claim 3, wherein the concrete foundation pile comprises a self-weight base, the self-weight base is provided with a mounting platform, a binding member is embedded in the mounting platform, and the bottom circular frame is fixedly connected with the mounting platform through the binding member.

5. The eco-friendly harbour channel anti-siltation device according to claim 4, wherein the distance between the sand separating cylinder and the frame is 5-10 times the diameter of the tire column.

6. The eco-friendly harbour channel siltation prevention device according to claim 5, wherein the number k of the rectangular frames and the tire diameter D satisfy k =4 when D is less than or equal to 2 m and k =4+ D/2 when D > 2 m.

7. The eco-friendly harbour channel anti-siltation device according to claim 6, wherein said chain is made up of long rod member links made of teflon.

8. The environment-friendly anti-silting device for a harbor channel as claimed in claim 7, wherein the left and right edges of the sand separating cylinder near one end of the concrete foundation pile are connected with both sides of the mounting platform by cable chains.

9. The environmentally friendly harbour channel siltation prevention device according to claim 8, wherein the circumferential outer wall of the sand-dividing cylinder is provided with a grid-like opening near the water surface side.

10. An environment-friendly working method of a harbor channel siltation preventing device, which adopts the siltation preventing device as claimed in claim 9,

step 1: observing hydrological conditions of a channel needing to be settled and sailing conditions of ships in advance, and defining a layout line;

and 2, step: after the concrete foundation piles are prefabricated, the concrete foundation piles are placed in a channel needing to be silted up, the concrete foundation piles are buried to the designed depth along the arrangement line during placement, and the site around the pile foundation is leveled;

and step 3: transporting waste tires to a wharf base, and placing the tires in a support to enable the tires to be divided into a plurality of units forming a vortex field;

and 4, step 4: after anchoring and positioning, arranging all the assembled vortex generating units at uniform intervals along the ship traveling wave and propeller wake flow directions, wherein the distance between the centers of the tire columns of the adjacent vortex generating units is more than 5 times of the diameter of the bottom circle of the bracket, selecting proper positions, and installing the tire columns and the sand separating cylinder when a diver enters water;

and 5: a large amount of strong ship travelling waves and propeller wake flows are generated by ship movement, the tire columns can capture the ship travelling waves and the propeller wake flow turbulent flow areas, and a continuous separation area is created by the double columns in series, so that the scouring effect of water flow on the bottom of water flow is increased.

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