Gabion gabion cofferdam

Abstract

The utility model discloses a gabion cofferdam, and relates to the field of water conservancy projects. The cofferdam is formed by jointly stacking a plurality of gabion brickwork bodies, and the upstream face and the downstream face of the cofferdam are both inclined faces. The gabion masonry comprises a gabion cage and stones filled with the gabion cage; the tops of more than one vertical column of gabion masonry in the cofferdam are the top surface of the cofferdam, and the bottoms of the gabion masonry are positioned below the river bottom; the anti-seepage geotextile is further included; and the anti-seepage geotechnical cloth wraps the upstream face, the downstream face and the bottom face of the gabion masonry bodies in the more than one vertical column. According to the utility model, a plurality of gabion masonry bodies are jointly piled up to form a cofferdam; the upstream face, the downstream face and the bottom face of a vertical row of gabion masonry located on the top face of the cofferdam are wrapped with anti-seepage geotechnical cloth, so that the cofferdam can effectively prevent seepage. The cofferdam is built by using the gabion masonry prepared in advance, so that the construction period of the cofferdam is short; moreover, when the cofferdam is dismantled after a project is completed, only the gabion masonry needs to be hoisted away, and the dismantling construction period is short.

Description

Technical Field

[0001] The utility model relates to the field of water conservancy projects, in particular to a gabion stone cage cofferdam. Background Art

[0002] Gabion cages are mesh boxes made of angular mesh (hexagonal mesh) woven with metal wire. Gabion mesh is made of low-carbon steel wire with high corrosion resistance, high strength and ductility or the above steel wire coated with PVC and woven mechanically. The box-shaped structure made of this mesh is the gabion. Cofferdam refers to a temporary enclosure structure built in the construction of water conservancy projects to build permanent water conservancy facilities. The traditional cofferdam is an earth-rock cofferdam. It is convenient to obtain raw materials for earth-rock cofferdams, and they are often built by taking stones and soil on site; their structure is simple and it is less difficult to expand and repair. However, since the earth-rock cofferdam is made of earth and stone, its construction period is long, and the period of dismantling it after the project is completed is also long.

[0003] Therefore, it is extremely important to propose a gabion stone cage cofferdam with a short construction period and a short demolition period after the project is completed. Utility Model Content

[0004] The utility model aims to solve the problem that the existing earth-rock cofferdam has a long construction period and a long construction period for dismantling the cofferdam after the project is completed.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a gabion stone cage cofferdam, the cofferdam is formed by stacking a plurality of gabion masonry blocks together, and the water-facing surface and the water-receiving surface are both inclined surfaces; the gabion masonry blocks include gabion cages and stones filling the gabion cages; more than one vertical row of gabion masonry blocks in the cofferdam, the top of which is the top surface of the cofferdam, and the bottom is located below the river bottom;

[0006] It also includes an anti-seepage geotextile; the anti-seepage geotextile is wrapped around the water-facing surface, the water-receiving surface and the bottom surface of the gabion masonry above the one vertical row.

[0007] Furthermore, the slope ratio of the water-facing surface of the cofferdam is 1:1, and the slope ratio of the water-receiving surface is 1:2.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] Multiple gabion masonry blocks are stacked together to form a cofferdam; the water-facing, water-receiving and bottom surfaces of a vertical row of gabion masonry blocks located on the top of the cofferdam are wrapped with anti-seepage geotextiles, so that the cofferdam can effectively prevent seepage. By stacking the gabion masonry blocks prepared in advance to form the cofferdam, the construction period of the cofferdam is shortened; and when the cofferdam is dismantled after the project is completed, only the gabion masonry blocks need to be hoisted away, and the dismantling period is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a schematic diagram of the use state of the utility model.

[0011] The meanings of the numbers in the figure are: 1. Gabion masonry; 2. Anti-seepage geotextile; 3. Silt; 4. Riverbed. DETAILED DESCRIPTION

[0012] The technical solution of the utility model is clearly and completely described below in conjunction with the drawings and specific implementation methods of the specification. The described embodiment is one embodiment of the utility model, and the utility model may also have other implementation methods.

[0013] Example:

[0014] See also Figure 1 The utility model discloses a gabion stone cage cofferdam, which is formed by piling up a plurality of gabion masonry units 1 and whose water-facing and water-receiving surfaces are both inclined surfaces; the gabion masonry units 1 include gabion cages and stones filling the gabion cages; the gabion masonry units 1 in a vertical row or more in the cofferdam have their tops as the cofferdam top surfaces and their bottoms located below the river bottom 4;

[0015] It also includes an anti-seepage geotextile 2; the anti-seepage geotextile 2 is wrapped around the water-facing surface, the water-receiving surface and the bottom surface of the gabion masonry 1 above the one vertical row.

[0016] In this embodiment, a certain depth is excavated downward at the river bottom 4 where a vertical column of gabion masonry 1 located on the top surface of the cofferdam is located, and this depth is the height of two gabion masonry 1; a plurality of gabion masonry 1 prepared in advance are used to build the cofferdam; when building a vertical column of gabion masonry 1 located on the top surface of the cofferdam, an anti-seepage geotextile 2 is wrapped on the water-facing surface, the water-receiving surface and the bottom surface of the vertical column of gabion masonry 1 located on the top surface of the cofferdam to form an anti-seepage surface, and this anti-seepage surface extends below the river bottom 4, and the anti-seepage effect is good. A lifting machine is used to lift the gabion masonry 1 and then pile it to the cofferdam; after the completion of the water conservancy project, when the cofferdam needs to be dismantled, the gabion masonry 1 can be lifted away by the same lifting machine.

[0017] The utility model adopts gabion masonry 1 to replace the traditional rolled soil and stone as the dam building material of the cofferdam. The gabion masonry 1 has good impact resistance.

[0018] The gabion masonry 1 of the utility model can also be reused; when the project is completed, the gabion masonry 1 can fully utilize its characteristics and can be widely used in the reinforcement and protection of projects such as rivers, reservoirs, seawalls, earthwork slopes and roads.

[0019] The utility model adopts the form of gabion masonry 1 plus anti-seepage geotextile 2 for anti-seepage. As a kind of polymer material, the anti-seepage geotextile has the functions of waterproofing, isolation, reinforcement, filtering and the like, and can be used as the main material for anti-seepage of cofferdam.

[0020] When the river water hits the cofferdam, the silt 3 carried by the river water will pass through the gaps of the gabion masonry 1. The silt 3 can not only slightly block the gaps to resist the flow of water, but also accumulate at the bottom corners of the geotextile core wall after a certain period of time to form a water interception layer.

[0021] A plurality of gabion masonry 1 are stacked together to form a cofferdam; the water-facing surface, the water-receiving surface and the bottom surface of a vertical row of gabion masonry 1 located on the top surface of the cofferdam are wrapped with an anti-seepage geotextile 2, so that the cofferdam can effectively prevent seepage. By stacking the gabion masonry 1 prepared in advance to form a cofferdam, the construction period of the cofferdam is shortened; and when the cofferdam is dismantled after the project is completed, only the gabion masonry 1 needs to be hoisted away, and the dismantling period is shortened.

[0022] As a preferred embodiment, the slope ratio of the water-facing surface of the cofferdam is 1:1, and the slope ratio of the water-receiving surface is 1:2.

[0023] In this embodiment, the slope ratio of the water-facing surface of the cofferdam is 1:1, and the slope ratio of the water-receiving surface is 1:2; the slope of the water-receiving surface is gentler, so that the cofferdam can better resist the thrust of the river water.

[0024] The terms “connection”, “fixation” and “docking” appearing in the description of the present invention may refer to fixed connection, processing, welding or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0025] In the description of the present invention, the terms "inside", "upper", "lower", "end", "side", "outside", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A gabion stone cage cofferdam, characterized by: The cofferdam is formed by stacking a plurality of gabion masonry (1) together, and both the water-facing surface and the water-receiving surface thereof are inclined surfaces; the gabion masonry (1) includes a gabion cage and stones filling the gabion cage; the gabion masonry (1) in one vertical row or more in the cofferdam has a top surface of the cofferdam and a bottom below the river bottom (4); It also includes an anti-seepage geotextile (2); the anti-seepage geotextile (2) is wrapped around the water-facing surface, the water-receiving surface and the bottom surface of the gabion masonry (1) above the one vertical row.

2. A gabion stone cage cofferdam according to claim 1, characterized in that: The slope ratio of the water-facing surface of the cofferdam is 1:1, and the slope ratio of the water-receiving surface is 1:2.

Images