阅读说明：本技术 双层生态浮岛结构及其施工方法 (Double-layer ecological floating island structure and construction method thereof ) 是由 齐昌广 于 2020-05-22 设计创作，主要内容包括：本发明涉及一种双层生态浮岛结构及其施工方法,在河床上设置钢板桩围堰,在所述钢板桩围堰底部河床上依次设置所述第一抗拔桩、第二抗拔桩和钢管桩,索扣设置在钢管上部,沉水植物浮床一端设置在钢管上,挺水植物浮床一端设置在钢管上,另一端设置在钢管桩上,不锈钢绳一端设置在第一贯穿扣件底部,另一端通过各个定滑轮、沉水植物浮床和挺水植物浮床设置在索扣上,保证沉水植物的采光与成活率且能深层净水,具有稳定可靠的效果。(The invention relates to a double-layer ecological floating island structure and a construction method thereof.A steel sheet pile cofferdam is arranged on a riverbed, a first uplift pile, a second uplift pile and a steel pipe pile are sequentially arranged on the riverbed at the bottom of the steel sheet pile cofferdam, a cable fastener is arranged at the upper part of a steel pipe, one end of a submerged plant floating bed is arranged on the steel pipe, one end of an emergent plant floating bed is arranged on the steel pipe, the other end of the emergent plant floating bed is arranged on the steel pipe pile, one end of a stainless steel cable is arranged at the bottom of a first through fastener, and the other end of the stainless steel cable is arranged on the cable fastener through fixed pulleys, the submerged plant floating bed and the emergent plant floating bed, so that the lighting and survival rate of submerged plants are ensured.)

1. A construction method of a double-layer ecological floating island structure is characterized by comprising the following steps:

step 1: first through holes (8) are formed in two end parts of the steel pipe (7), and fixed pulleys (11) are symmetrically mounted below the orifice of the first through hole (8) in the top end of the steel pipe (7);

step 2: manufacturing a submerged plant floating bed (4), installing first through fasteners (3) at two ends of one side of the submerged plant floating bed (4), installing second through fasteners (5) at two ends of the other side of the submerged plant floating bed (4), installing a fixed pulley (11) at the bottom of each second through fastener (5), and installing cuffs (16) at two corners of the same side;

and step 3: manufacturing an emergent aquatic plant floating bed (10), installing cuffs (16) at four corners of the emergent aquatic plant floating bed (10), and forming second through holes (9) on the edges of the cuffs (16) on one side of the floating bed;

and 4, step 4: selecting a proper position at a construction river channel section, driving a steel sheet pile cofferdam (19) forming a square space on a riverbed (2) at the position, pumping water from a foundation pit, and dredging a river channel at the bottom of the cofferdam;

and 5: measuring and paying off on a riverbed (2) at the bottom of a steel sheet pile cofferdam (19), determining the positions of various piles, and pouring and driving a first uplift pile (13), a second uplift pile (14) and a steel pipe pile (15) in sequence;

step 6: a fixed pulley (11) is installed at the top of the first uplift pile (13), a steel pipe (7) is installed at the center of the top of the second uplift pile (14), and the fixed pulleys (11) are installed on two sides of the steel pipe (7) respectively;

and 7: the submerged plant floating bed (4) is connected with the steel pipe (7) through a hoop (16), one side of the emergent plant floating bed (10) provided with the second through hole (9) is connected with the steel pipe (7) through the hoop (16), and the other side of the emergent plant floating bed is connected with the steel pipe pile (15);

and 8: selecting a stainless steel rope (12) with a proper length, arranging one end of the stainless steel rope at the bottom of the first through fastener (3) and arranging the other end of the stainless steel rope on the cable buckle (6) through the fixed pulleys, the first through hole (8) and the second through hole (9), and controlling the stainless steel rope (12) to realize the adjustment of the water penetration depth of the submerged plant floating bed (4);

and step 9: planting submerged plants (17) on the submerged plant floating bed (4) at the lower layer, and planting emergent plants (18) on the emergent plant floating bed (10) at the upper layer;

step 10: and (3) slowly pouring water into the steel sheet pile cofferdam (19), and gradually removing the steel sheet piles to complete the construction of the double-layer ecological floating island structure.

2. The construction method of the double-deck ecological floating island structure according to claim 1, wherein in step 4, when the locking port is not tight and water leakage occurs, the seam is plugged by using fiber-rich cotton wool, and the seam is plugged by mixing hemp roots with grease to stop water when the pile seam is wider.

3. The construction method of the double-layer ecological floating island structure according to claim 1, wherein the submerged plant floating bed (4) and the emergent plant floating bed (10) are made of thin floating boxes made of PE materials.

4. The construction method of the double-layer ecological floating island structure according to claim 1, wherein one end of the stainless steel rope (12) is connected with the bottom of the first through fastener (3), sequentially passes through the fixed pulley arranged at the top of the first uplift pile (13), the fixed pulley arranged at the bottom of the second through fastener (5), the fixed pulley arranged at one side of the second uplift pile (14) close to the first uplift pile (13), the first perforation (8) at the bottom of the steel pipe (8), the fixed pulley arranged at one side of the second uplift pile (14) close to the first uplift pile (13), the second perforation (9) arranged on the emergent aquatic plant floating bed (10), the fixed pulley arranged at one side of the top of the steel pipe (7) close to the emergent aquatic plant floating bed (10), the first perforation (8) at the top of the steel pipe (7), and the fixed pulley at one side of the top of the steel pipe (7) close to the submerged plant floating bed (4) are connected with the cable fastener (6).

5. The construction method of the double-layered ecological floating island structure according to claim 1, wherein the submerged plant floating bed (4) is located below the emergent plant floating bed (10).

6. The construction method of the double-layer ecological floating island structure according to claim 1, wherein the diameter of the second uplift pile (14) is larger than that of the first uplift pile (13), and the diameters of the steel pipe (7) and the steel pipe pile (15) are the same.

7. The construction method of the double-layered ecological floating island structure according to claim 1, wherein the submerged plant floating bed (4) and the emergent plant floating bed (10) are disposed on both sides of the steel pipe (7).

8. A double-layer ecological floating island structure, which is obtained by construction according to the construction method of the double-layer ecological floating island structure of any one of claims 1 to 6.

Technical Field

The invention relates to the field of ecological floating island construction, in particular to a double-layer ecological floating island structure and a construction method thereof.

Background

The eutrophication of water body caused by human production activity is a global water environment problem. The ecological floating island is also called an artificial floating bed, an ecological floating bed and the like, and absorbs, adsorbs, digests and degrades organic pollutants in water in a damaged water body by utilizing the natural ecological habit of organisms aiming at eutrophic water quality. The method is generally used for ecological restoration of water body pollution in cities and rural areas, and is also used for building urban wetland scenic spots and the like. Through decades of research and development, domestic and foreign ecological floating island technologies are greatly improved, but the ecological floating island technologies are still in the testing and demonstration stages for various reasons, and have problems and defects in use: for example, the ecological floating islands used at home and abroad have small monomer area and small purification and restoration effect, and are easy to be blown away by wind waves or collide with each other when the ecological floating islands are used; and the depth of the traditional submerged plant floating bed is fixed, so that the submerged plant can not survive easily due to the failure of normal photosynthesis because the depth adjustment can not be carried out according to different submerged plants, and the deep water purification capability of the ecological floating island can not be exerted easily.

Disclosure of Invention

The invention aims to provide a stable and reliable double-layer ecological floating island structure and a construction method thereof, wherein the double-layer ecological floating island structure can enlarge a purification and restoration space, ensure the lighting and survival rate of submerged plants and deeply purify water.

The technical scheme provides a construction method of a double-layer ecological floating island structure, which comprises the following steps:

step 1: arranging first through holes at two ends of the steel pipe, and symmetrically installing fixed pulleys below a first through hole orifice at the top end of the steel pipe;

step 2: manufacturing a submerged plant floating bed, mounting first through fasteners at two ends of one side of the submerged plant floating bed, mounting second through fasteners at two ends of the other side of the submerged plant floating bed, mounting a fixed pulley at the bottom of each second through fastener, and mounting cuffs at two corners at the same side;

and step 3: manufacturing an emergent aquatic plant floating bed, mounting cuffs at four corners of the emergent aquatic plant floating bed, and forming a second through hole on the edge of the cuff at one side of the floating bed;

and 4, step 4: selecting a proper position at a construction river channel section, constructing a steel sheet pile cofferdam forming a square space on a riverbed at the position, pumping water from a foundation pit, and dredging a river channel at the bottom of the cofferdam;

and 5: measuring and paying off on a riverbed at the bottom of the steel sheet pile cofferdam, determining the positions of various piles, and pouring and driving a first uplift pile, a second uplift pile and a steel pipe pile in sequence;

step 6: a fixed pulley is arranged at the top of the first uplift pile, a steel pipe is arranged at the center of the top of the second uplift pile, and the fixed pulleys are arranged on two sides of the steel pipe respectively;

and 7: the submerged plant floating bed is connected with the steel pipe through a hoop, one side of the emergent plant floating bed, which is provided with the second through hole, is connected with the steel pipe through the hoop, and the other side of the emergent plant floating bed is connected with the steel pipe pile;

and 8: selecting a stainless steel rope with a proper length, wherein one end of the stainless steel rope is arranged at the bottom of the first through fastener, the other end of the stainless steel rope is arranged on the rope fastener through the fixed pulleys, the first through hole and the second through hole, and the underwater depth adjustment of the submerged plant floating bed is realized by controlling the stainless steel rope;

and step 9: planting submerged plants on the submerged plant floating bed at the lower layer, and planting emergent plants on the emergent plant floating bed at the upper layer;

step 10: and slowly pouring water into the steel sheet pile cofferdam, and gradually removing the steel sheet piles to complete the construction of the double-layer ecological floating island structure.

According to another aspect of the present invention, there is provided a double-layered ecological floating island structure constructed according to the method thereon.

Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:

the invention adopts the solid uplift pile and the steel pipe pile as main shafts, greatly improves the wind and wave resistance of the ecological floating island, and reduces the possibility that the artificial floating island is blown away by wind waves or the collision occurs between adjacent floating islands.

The pulley system provided by the invention can adjust the water inlet depth of the submerged plant floating bed, improve the deep water purification capacity of the ecological floating island and ensure the lighting and survival rate of the submerged plants.

The double-layer ecological floating island provided by the invention greatly deepens and increases the purification and restoration space of the ecological floating island under the condition that the areas of the ecological floating island monomers are the same.

Drawings

Fig. 1 is a schematic view of a double-layered ecological floating island structure.

Fig. 2 is a construction schematic diagram of a double-layer ecological floating island structure.

Fig. 3 is a layout view of the first uplift pile, the second uplift pile, and the steel pipe pile.

Fig. 4 is a plan view of the submerged plant floating bed.

FIG. 5 is a top view of an emerging plant floating bed.

Wherein: 1-water surface; 2-riverbed; 3-first through fastener; 4-submerged plant floating bed; 5-second through fastener; 6-cable buckle; 7-steel pipe; 8-first perforation; 9-second perforation; 10-emergent aquatic plant floating bed; 11-fixed pulley; 12-stainless steel cable; 13-first uplift pile; 14-second uplift pile; 15-steel pipe pile; 16-a ferrule; 17-submerged plants; 18-emergent aquatic plants; 19-steel sheet pile cofferdam.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

The double-layer ecological floating island structure comprises: the floating pile comprises a first penetrating fastener (3), a submerged plant floating bed (4), a second penetrating fastener (5), a cable fastener (6), a steel pipe (7), a first penetrating hole (8), a second penetrating hole (9), an emergent plant floating bed (10), a fixed pulley (11), a stainless steel rope (12), a first uplift pile (13), a second uplift pile (14), a steel pipe pile (15), a hoop (16), a submerged plant (17), an emergent plant (18) and a steel sheet pile cofferdam (19).

The steel sheet pile cofferdam (19) is arranged on the riverbed (2), specifically, the steel sheet pile cofferdam (19) inserted into the steel sheet pile is arranged on the riverbed (2), locking notches on the steel sheet pile are mutually meshed to form the steel sheet pile cofferdam (19) with a square space, an enclosed space is formed, the first uplift resistant piles (13), the second uplift resistant piles (14) and the steel pipe piles (15) are sequentially arranged on the riverbed (2) at the bottom of the enclosed space enclosed by the steel sheet pile cofferdam (19) at intervals, the steel pipes (7) are arranged on the second uplift resistant piles (14), the steel pipes (7) are pre-embedded on the second uplift resistant piles (14), the submerged plant floating beds (4) and the emergent aquatic plant floating beds (10) are vertically connected to the steel pipes (7) at intervals, and the submerged plant floating beds (4) are located below the emergent plant floating beds (10).

The first uplift pile (13) and the second uplift pile (14) are poured at corresponding positions, and a pile driver is used for driving the steel pipe pile (15) to the designed depth at the corresponding position of the riverbed (2). The method comprises the steps of drilling holes to the designed depth at corresponding positions according to the diameters of a first uplift pile (13) and a second uplift pile (14), then sequentially pouring the first uplift pile (13) and the second uplift pile (14) by sinking a steel reinforcement cage, and finally driving a steel pipe pile (15) to the designed depth at the corresponding position of a river bed by using a pile driver.

The device comprises a submerged plant floating bed (4), a ferrule (16), an emergent plant floating bed (10), a steel pipe (7), a ferrule (16), a steel pipe pile (15), a steel pipe pile (7), a ferrule (16), a steel pipe (7), a ferrule (16), a ferrule (10) and a ferrule (16).

First anti-floating pile (13) top sets up fixed pulley (11), and the both sides on steel pipe (7) top set up fixed pulley (11), first perforation (8) set up at steel pipe (7) both ends, first perforation (8) below both sides of steel pipe (7) upper end set up fixed pulley (11), cable buckle (6) set up on steel pipe (7) upper portion and are located fixed pulley (11) below.

The stainless steel rope is characterized in that the second through hole (9) is formed in one side, close to the steel pipe (7), of the emergent aquatic plant floating bed (10), the second through fastener (5) is formed in one side, close to the steel pipe (7), of the submerged plant floating bed (4), the fixed pulley (11) is arranged at the bottom of the emergent aquatic plant floating bed, the first through fastener (3) is formed in the other side of the submerged plant floating bed (4), one end of the stainless steel rope (12) is arranged at the bottom of the first through fastener (3), and the other end of the stainless steel rope is arranged on the cable buckle (6) through the fixed pulley, the first through hole (8) and the second through hole (9).

Specifically, stainless steel cable (12) one end is connected first and is run through fastener (3) bottom, loop through the fixed pulley of arranging first anti-floating pile (13) top in proper order, arrange the fixed pulley of second through fastener (5) bottom in, arrange second anti-floating pile (14) in and be close to the fixed pulley of first anti-floating pile (13) one side, first perforation (8) of steel pipe (8) bottom, arrange second anti-floating pile (14) in and be close to the fixed pulley of first anti-floating pile (13) one side, arrange second perforation (9) on emergent aquatic plants floating bed (10) in, the fixed pulley of emergent aquatic plants floating bed (10) one side is close to at steel pipe (7) top, first perforation (8) at steel pipe (7) top, connect on cable buckle (6) after steel pipe (7) top is close to the fixed pulley of submerged plants floating bed (4) one side.

The diameter of the second uplift pile (14) is larger than that of the first uplift pile (13), and the diameters of the steel pipe (7) and the steel pipe pile (15) are the same.

Wherein the submerged plant (17) is planted on the submerged plant floating bed (4), and the emergent aquatic plant (18) is planted on the emergent aquatic plant floating bed (10).

The submerged plant floating bed (4) and the emergent plant floating bed (10) are manufactured by adopting thin floating boxes made of PE materials.

Wherein the submerged plant floating bed (4) and the emergent plant floating bed (10) are respectively arranged at the two sides of the steel pipe (7).

The construction method of the double-layer ecological floating island structure comprises the following steps:

1) as shown in fig. 1 and 2, a required steel pipe (7) is manufactured in advance, first through holes (8) are arranged at two ends of the steel pipe (7), and fixed pulleys (11) are symmetrically arranged below the orifice of the first through hole (8) at the top end of the steel pipe (7);

2) as shown in fig. 1 and 4, selecting a thin floating box made of PE material to make a submerged plant floating bed (4), installing first through fasteners (3) at two ends of one side of the submerged plant floating bed (4), installing second through fasteners (5) at two ends of the other side of the submerged plant floating bed (4), installing a fixed pulley (11) at the bottom of the second through fasteners (5), and installing hoops (16) at two corners of the same side;

3) as shown in fig. 1 and 5, selecting a thin floating box made of a PE material to manufacture an emergent aquatic plant floating bed (10), installing cuffs (16) at four corners, and forming a second through hole (9) on the edge of the cuff (16) at one side of the floating bed;

4) as shown in fig. 2 and 3, a proper position is selected at a construction river channel section, an inserted steel sheet pile is arranged on a river bed (2) at the position, locking notches on the steel sheet pile are mutually occluded to form a steel sheet pile cofferdam (19) with a square space, then foundation pit water pumping is carried out, when the locking notches are not tight and water leakage occurs, fiber-rich cotton wool is adopted for caulking, and hemp root grease-doped caulking for water stopping is adopted for wider pile seams to achieve the purpose of water stopping, and finally river channel dredging at the bottom of the cofferdam is carried out;

5) as shown in fig. 2 and 3, measuring and setting out on a riverbed at the bottom of a steel sheet pile cofferdam (19), determining the positions of various piles, drilling holes at corresponding positions to the designed depth according to the diameters of a first uplift pile (13) and a second uplift pile (14), then sinking a reinforcement cage to pour the first uplift pile (13) and the second uplift pile (14) in sequence, and finally, driving steel pipe piles (15) at corresponding positions of the riverbed to the designed depth by using a pile driver;

6) as shown in fig. 2 and 3, a fixed pulley (11) is installed at the top of a first uplift pile (13), a steel pipe (7) with a corresponding length is installed in the center of the top in a pre-buried manner when a second uplift pile (14) is poured, and the fixed pulleys (11) are installed on two sides of the steel pipe (7) respectively;

7) as shown in fig. 2, the submerged plant floating bed (4) is connected with the steel pipe (7) through a hoop (16), the emergent plant floating bed (10) is connected with the steel pipe (7) through the hoop (16) on one side provided with the second through hole (9), and is connected with the steel pipe pile (15) on the other side;

8) as shown in fig. 1 and 2, a stainless steel rope (12) with a proper length is selected, one end of the stainless steel rope is fixed at the bottom of a first through fastener (3), the other end of the stainless steel rope passes through a fixed pulley (11) on a first uplift pile (13), a fixed pulley (11) at the bottom of a second through fastener (5), a fixed pulley (11) on a second uplift pile (14), a first through hole (8) at the bottom end of a steel pipe (7), a second through hole (9) on an emergent aquatic plant floating bed (10), and a fixed pulley (11) and a first through hole (8) at the upper end of the steel pipe (7), and is finally fixed on a cable buckle (6), and the underwater depth adjustment of the submerged plant floating bed (4) is realized by controlling the stainless steel rope (12);

9) as shown in fig. 1, submerged plants (17) are planted on the submerged plant floating bed (4) at the lower layer, and emergent plants (18) are planted on the emergent plant floating bed (10) at the upper layer;

10) and (3) finally, slowly filling water into the steel sheet pile cofferdam (19) and gradually removing the steel sheet piles to finish the construction of the double-layer ecological floating island structure as shown in figure 1.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.