CN217352299U

CN217352299U - Ecological cofferdam structure for in-situ treatment of lake endogenous pollution

Info

Publication number: CN217352299U
Application number: CN202220106306.5U
Authority: CN
Inventors: 谢丽莹; 杨小琴; 黄雄飞; 陈涛; 蔡楚佳; 何小林
Original assignee: Guangzhou Belsun Aquatic Ecology Technology Co ltd
Current assignee: Guangzhou Belsun Aquatic Ecology Technology Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-09-02
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses an ecological reclamation dam structure for in-situ treatment of lake endogenous pollution, which comprises a plurality of longitudinal supporting tubes, at least two transverse supporting tubes, a plurality of timber piles and protective cloth, wherein the longitudinal supporting tubes are arranged at intervals in the length direction; at least two transverse supporting tubes are connected to the top ends of the plurality of longitudinal supporting tubes and are distributed at intervals in the height direction of the longitudinal supporting tubes; a plurality of timber piles are arranged between two adjacent longitudinal supporting pipes; the plurality of longitudinal supporting tubes and the plurality of timber piles form a cofferdam surface together; the protective cloth is paved on the reclamation dam surface along the length direction. The utility model provides an ecological cofferdam structure that is used for endogenous pollution normal position of lake to administer can be effectual fixes the pollution bed mud of hydraulic reclamation in the prevention and cure region.

Description

Ecological cofferdam structure for in-situ treatment of lake endogenous pollution

Technical Field

The utility model relates to an ecological technical field that administers especially relates to an ecological cofferdam structure that is used for endogenous pollution normal position of lake to administer.

Background

Endogenous pollution refers to the phenomenon that pollutants in bottom mud are released outwards to cause water quality deterioration and ecological system destruction of a water body, and is the key to success or failure of water ecosystem restoration.

The bottom sediment in-situ hydraulic reclamation technology is taken as the bottom sediment pollution in-situ remediation technology commonly used at present, is widely applied to the endogenous pollution remediation of large lakes, greatly saves the remediation cost, and can not cause secondary pollution due to ex-situ transfer of the bottom sediment. However, in the bottom sediment hydraulic filling implementation process, the polluted bottom sediment cannot be concentrated in a fixed area for treatment due to the fact that the polluted bottom sediment is high in water content and difficult to accumulate, the pollutant diffusion area is large, and the follow-up cost input is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides an ecological cofferdam structure that is used for endogenous pollution normal position of lake to administer can be effectual fix the pollution bed mud of hydraulic reclamation in the prevention and cure region.

The purpose of the utility model is realized by adopting the following technical scheme:

an ecological cofferdam structure for in-situ treatment of lake endogenous pollution comprises a plurality of longitudinal supporting tubes, at least two transverse supporting tubes, a plurality of timber piles and protective cloth, wherein the longitudinal supporting tubes are arranged at intervals in the length direction; at least two transverse supporting tubes are connected to the top ends of the plurality of longitudinal supporting tubes and are distributed at intervals in the height direction of the longitudinal supporting tubes; a plurality of timber piles are arranged between two adjacent longitudinal supporting pipes; the plurality of longitudinal supporting tubes and the plurality of timber piles form a cofferdam surface together; the protective cloth is paved on the reclamation dam surface along the length direction.

As a preferred embodiment, the top end of the protective cloth is provided with a floating body; the bottom end of the protective cloth is provided with a counterweight body.

As a preferred embodiment, the float is a foam float; the counterweight body is of a gabion structure.

In a preferred embodiment, the transverse support tube and the longitudinal support tube are fixedly connected by a U-shaped tube clamp.

As a preferred embodiment, a steel wire mesh frame is arranged between the protective cloth and the cofferdam surface.

In a preferred embodiment, a steel wire rope is connected to the longitudinal supporting tube, and an anchor pile is connected to the end, far away from the transverse supporting tube, of the steel wire rope.

In a preferred embodiment, the longitudinal support tube and the transverse support tube are galvanized steel tubes.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a enclose major structure of low bank between fields is formed with two at least horizontal support tubes by a plurality of vertical stay tubes, cooperates a plurality of stakes to form to enclose the low bank between fields face, and when fixed, the bottom in prevention and cure district can all be inserted to the bottom of vertical stay tube and stake, guarantees whole installation stability who encloses the low bank between fields, then covers the protection cloth enclosing the low bank between fields face upper berth, can effectually fix the pollution bed mud of hydraulic reclamation at prevention and cure regional, the later stage centralized processing of being convenient for.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of another perspective structure of the present invention;

fig. 3 is a schematic view of a partial structure of the present invention.

In the figure: 10. a longitudinal support tube; 20. a transverse supporting tube; 30. protective cloth; 40. a U-shaped pipe clamp; 50. steel wire mesh; 60. a wire rope; 61. anchoring piles; 70. and (5) piling wood.

Detailed Description

The following description of the present invention will be made with reference to the accompanying drawings and the detailed description thereof, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The terms "first," "second," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1, fig. 2 and fig. 3, the ecological cofferdam structure for in-situ treatment of endogenous pollution in lakes comprises a plurality of longitudinal support pipes 10, at least two transverse support pipes 20, a plurality of timber piles 70 and protective cloth 30, wherein the plurality of longitudinal support pipes 10 are arranged at intervals in a length direction; at least two transverse support tubes 20 are connected to the top ends of the plurality of longitudinal support tubes 10 and are distributed at intervals in the height direction of the longitudinal support tubes 10; a plurality of timber piles 70 are arranged between two adjacent longitudinal supporting pipes 10; the plurality of longitudinal support tubes 10 and the plurality of timber piles 70 together form a cofferdam surface; the protection cloth 30 is laid on the reclamation dam surface along the length direction.

On the basis of the structure, the main structure of the cofferdam is formed by a plurality of longitudinal supporting tubes 10 and at least two transverse supporting tubes 20, a cofferdam surface is formed by matching a plurality of timber piles 70, when the cofferdam is fixed, the bottom ends of the longitudinal supporting tubes 10 and the timber piles 70 can be inserted into the bottom end of the control area, the installation stability of the whole cofferdam is ensured, then the protective cloth 30 is paved on the cofferdam surface, the pollution bottom mud of hydraulic reclamation can be effectively fixed in the control area, and the later-stage centralized treatment is facilitated. The method has the characteristics of ecology, safety, simple and convenient construction, low cost and the like, and provides a foundation for the wide implementation of the sediment in-situ hydraulic reclamation technology.

In this embodiment, the protective cloth 30 may be made of a geotextile as in the prior art, a water-permeable geosynthetic material formed by synthetic fibers through needling or weaving, and has characteristics of high strength, good water permeability, and convenient construction. Of course, the protective cloth 30 may be made of other materials such as non-woven cloth in the prior art.

More specifically, a floating body can be arranged at the top end of the protective cloth 30, a counterweight body is correspondingly arranged at the bottom end of the protective cloth 30, on the basis of the structure, the protective cloth 30 can float on the water surface under the action of the floating body, and the bottom end of the protective cloth 30 can sink and immerse in the water bottom under the action of the counterweight body, so that bottom mud is intercepted and hydraulic-reclamation is realized, the bottom mud sedimentation is promoted, and muddy water is prevented from diffusing to the periphery of a hydraulic-reclamation area to influence the water quality condition of the whole lake area.

Further, the floating body is a foam floating body; the counterweight body is of a gabion structure, so that the cost is low, and the installation is convenient.

As a preferred embodiment, the transverse support tube 20 and the longitudinal support tube 10 are fixedly connected by a U-shaped tube clamp 40, that is, the U-shaped tube clamp 40 may be disposed at the connection position of the transverse support tube 20 and each longitudinal support tube 10 for connection and fixed connection, which is more convenient.

In this embodiment, the U-shaped pipe clamp 40 may be purchased directly from the existing market, and is easy to replace when damaged, and it should be noted that the transverse support pipe 20 and the longitudinal support pipe 10 may also be connected by using a hoop or a bolt and a nut in the prior art, which is specifically selected according to actual needs.

As a preferred embodiment, in order to make the mounting structure of the protection cloth 30 more stable, a steel wire mesh 50 frame may be further disposed between the protection cloth 30 and the cofferdam, the steel wire mesh 50 frame is fixed to the cofferdam through screws and other structures, and then the protection cloth 30 is paved with the steel wire mesh 50 frame as an assembly foundation, so as to prevent the protection cloth 30 from being broken due to uneven stress, and make the mounting structure of the protection cloth 30 more stable. And the grid structure on the 50 steel wire meshes can also ensure the water permeability.

As a preferred embodiment, a steel wire rope 60 may be further connected to the longitudinal support pipe 10, an anchor pile 61 may be connected to an end of the steel wire rope 60 far from the transverse support pipe 20, when the cofferdam body is used to provide a water area for prevention and control, after the longitudinal support pipe 10 is inserted to the water bottom, a connection hole may be formed at a top end of the longitudinal support pipe 10, the steel wire rope 60 may be inserted into the connection hole, the anchor pile 61 at the other end of the steel wire rope 60 may be inserted to the water bottom, and the anchor pile 61 is spaced from a bottom end of the longitudinal support pipe 10, so that the steel wire rope 60 is inclined and straightened, and the longitudinal support pipe 10 is prevented from falling, thereby the assembly structure of the cofferdam structure is more stable.

As a preferred embodiment, the longitudinal support tube 10 and the transverse support tube 20 are galvanized steel tubes, and the galvanized steel tubes have good corrosion resistance, are convenient to use in water, and have prolonged service life.

Specifically, the present embodiment further provides a cofferdam structure, that is, the cofferdam structure is formed by the pine stump 70, the plurality of longitudinal support tubes 10 and the at least two transverse support tubes 20, and the plurality of longitudinal support tubes 10 and the transverse support tubes 20 are made of stainless steel, and have a diameter of 100mm and a length of 6m (the length can be adjusted by combining stability calculation); a connecting hole is welded at one end of the longitudinal support tube 10, so that the steel wire rope 60 can be fixed conveniently.

During assembly, the longitudinal support pipes 10 are arranged along the periphery of the hydraulic reclamation area, one vertical support pipe is driven every 2 meters, the transverse support pipes 20 are fixed on the longitudinal support pipes 10 through U-shaped pipe clamps 40, and the longitudinal support pipes 10 are perpendicular to the transverse support pipes 20. In addition, the surface of the pine pile 70 is subjected to antiseptic treatment (spraying antiseptic materials or surface carbonization and the like), the diameter of the cut pine pile 70 is 140mm, the length of the cut pine pile is 6m, the cut pine pile is densely arranged between two steel piles, and the gap between pile bodies of the pine pile 70 is not more than 10cm, so that the cofferdam formed has a stable structure and low corrosion resistance.

It should be noted that the pine pile 70 and the longitudinal support pipe 10 are driven into the soil to 2/3 of the pile body, so as to ensure the stability of the pile body.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. The ecological cofferdam structure for in-situ treatment of the endogenous pollution in the lake is characterized by comprising a plurality of longitudinal supporting tubes, at least two transverse supporting tubes, a plurality of timber piles and protective cloth, wherein the plurality of longitudinal supporting tubes are arranged at intervals in the length direction; at least two transverse supporting tubes are connected to the top ends of the plurality of longitudinal supporting tubes and are distributed at intervals in the height direction of the longitudinal supporting tubes; a plurality of timber piles are arranged between two adjacent longitudinal supporting pipes; the plurality of longitudinal supporting tubes and the plurality of timber piles form a cofferdam surface together; the protective cloth is paved on the reclamation dam surface along the length direction.

2. The ecological cofferdam structure for the in-situ treatment of the endogenous pollution in lakes according to claim 1, characterized in that the top end of the protective cloth is provided with a floating body; the bottom end of the protective cloth is provided with a counterweight body.

3. The ecological cofferdam structure for the in-situ treatment of the endogenous pollution in lakes according to claim 2, wherein the floating body is a foam floating body; the counterweight body is of a gabion structure.

4. The ecological cofferdam structure for in-situ treatment of endogenous pollution in lakes as claimed in claim 1, wherein the transverse supporting tubes and the longitudinal supporting tubes are fixedly connected by U-shaped tube clamps.

5. The ecological cofferdam structure for the in situ treatment of the endogenous pollution in lakes as claimed in claim 1, wherein a steel wire net frame is arranged between the protective cloth and the cofferdam surface.

6. An ecological cofferdam structure for in-situ treatment of endogenous pollution in lakes as claimed in any of claims 1 to 5, wherein a steel wire rope is connected to the longitudinal supporting tube, and an anchor pile is connected to the end of the steel wire rope far away from the transverse supporting tube.

7. The ecological cofferdam structure for in-situ treatment of endogenous pollution in lakes as claimed in any of claims 1 to 5, wherein the longitudinal supporting pipes and the transverse supporting pipes are galvanized steel pipes.