CN219219068U - Deep water area earth-rock cofferdam supporting construction - Google Patents

Abstract

The utility model discloses a deep water area earth-rock cofferdam supporting structure, which belongs to the technical field of earth-rock cofferdams and comprises an earth-rock cofferdam weir body, a supporting body and a geomembrane, wherein the supporting body is paved on the upstream surface of the earth-rock cofferdam weir body, and the geomembrane is paved outside the supporting body; the support body includes supporting groove, the gravel layer, keep apart the backing plate, a plurality of bar division board, the strengthening rib, soil bag and concrete block, the supporting groove sets up on the earth rock cofferdam weir body upstream face, the gravel layer has been laid on the supporting groove diapire, the isolation backing plate has been laid on the surface on gravel layer, the top of keeping apart the backing plate evenly is fixed with a plurality of bar division board, and the inside equidistant interlude of bar division board has a plurality of strengthening rib, the soil bag has all been piled up in a plurality of clearances that form between strengthening rib and the bar division board, and concrete block has all been pour to both sides inner wall about the supporting groove, the inside at concrete block is all pre-buried from top to bottom to the strengthening rib, the problem that easy local slip is piled up to the soil bag has been solved.

Description

Deep water area earth-rock cofferdam supporting construction

Technical Field

The utility model relates to the technical field of earth-rock cofferdams, in particular to a supporting structure of an earth-rock cofferdam in a deep water area.

Background

The earth-rock cofferdam is formed by filling earth and stones and is used as an upstream and downstream transverse cofferdam, so that the earth-rock cofferdam can fully utilize local materials, has strong adaptability to a foundation and is simple in construction process. At present, in the construction process of the earth-rock cofferdam in a deep water area, mudstone and clay are generally adopted as filling materials, and the filling materials are easy to disintegrate in water, so that supporting measures are required to be taken in the aspect of seepage prevention when the earth-rock cofferdam in the deep water area is constructed, and the stability of the cofferdam is ensured.

In the prior literature, the patent application number is 201920367350.X, the name is a high-flow-rate-adaptive earth-rock cofferdam, and the impact resistance of the earth-rock cofferdam is improved and the stability of the cofferdam is ensured by paving an inner slope protection through a stone bag made by wrapping broken stone with a steel wire cage; however, the inner slope protection paved by the stone bags is poor in seepage prevention performance, and when the inner slope protection paved by the stone bags is used for a long time, the phenomenon of local sliding is easily caused by the influence of water flow, so that the effect of integrally supporting the upstream surface is reduced.

Therefore, how to provide a deep water area earth-rock cofferdam supporting structure to solve the technical problems that the seepage resistance is poor, and local slippage easily occurs when the cofferdam is used for a long time in the prior art, and the technical problem to be solved is urgent for the technicians in the field.

Disclosure of Invention

Therefore, the utility model provides a deep water area earth-rock cofferdam supporting structure, which aims to solve the problem of poor stability of the cofferdam caused by slippage of an earth bag in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

according to the first aspect of the utility model, the earth-rock cofferdam dam comprises an earth-rock cofferdam weir body, a support body and a geomembrane, wherein the support body is paved on the upstream surface of the earth-rock cofferdam weir body, the geomembrane is paved on the outer side of the support body, and corners of the geomembrane are fixed on the surface layer of the earth-rock cofferdam weir body through a plurality of inserted bars.

Further, the support body includes supporting groove, gravel layer, keeps apart backing plate, a plurality of bar division board, strengthening rib, soil bag and concrete block, the supporting groove sets up on earth stone cofferdam weir body upstream face, the supporting groove diapire upper berth has been laid the gravel layer, the surface on gravel layer has been laid keep apart the backing plate, the top of keeping apart the backing plate evenly is fixed with a plurality of bar division board, just the inside equidistant interlude of bar division board has a plurality of the strengthening rib, the strengthening rib with a plurality of gaps that form between the bar division board all pile up the soil bag, and the upper and lower both sides inner wall of supporting groove has all been pour concrete block, the upper and lower both ends of strengthening rib are all pre-buried in concrete block's inside.

Further, the earth-rock cofferdam weir body comprises a shale layer and a clay layer, the shale layer and the clay layer are closely attached, the clay layer is positioned on the upstream surface of the earth-rock cofferdam weir body, and the supporting body is paved on the surface layer of the clay layer.

Furthermore, embedded parts are arranged on two sides of the concrete block, and one side of the embedded parts, which is positioned outside the concrete block, is welded and fixed with four corners of the isolation backing plate.

Further, the strip-shaped separation plates are vertically distributed at the top of the isolation base plate, and the strip-shaped separation plates are arranged at equal intervals.

Further, a plurality of rectangular openings are formed in the isolation base plate, and the rectangular openings on the isolation base plate correspond to the soil bags one by one.

Further, the novel isolation pad comprises an isolation screen cloth, wherein the isolation screen cloth is fixed in the rectangular opening on the isolation pad, and the peripheral edge of the isolation screen cloth is fixedly connected with the inner wall of the rectangular opening on the isolation pad.

Further, the geomembrane is integrally paved outside the top end of the soil bag.

The utility model has the following advantages:

1. this deep waters earth-rock cofferdam supporting construction is through seting up the supporting groove on the upstream face of earth-rock cofferdam main part to the supporting groove can be through piling up the soil bag in a plurality of clearances that form between strengthening rib and the bar division board, so that improve the stability that the soil bag was piled up.

2. The geomembrane is integrally paved outside the top end of the soil bag, can play a better anti-seepage role by being integrally paved outside the support body, and further plays a role in strengthening and stabilizing the soil bag, so that the support effect is better.

3. The gravel layer is paved on the bottom wall of the supporting groove, and can disperse water flow flowing into the periphery of the soil bag, so that the supporting groove can drain water in time, and the water dispersibility of the earth-rock cofferdam weir body is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

FIG. 1 is a schematic structural view of a deep water earth-rock cofferdam supporting structure of the present utility model;

FIG. 2 is a schematic diagram of the top structure of the spacer plate according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the isolation pad provided by the utility model;

in the figure: 1. a earth-rock cofferdam weir; 101. a mud layer; 102. a clay layer; 2. a support body; 201. a supporting groove; 202. a gravel layer; 203. an isolation pad; 204. a strip-shaped partition plate; 205. reinforcing ribs; 206. a soil bag; 207. a concrete block; 208. an embedded part; 209. an isolation mesh; 3. geomembrane; 301. and a plunger.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, the supporting structure of the earth-rock cofferdam in a deep water area comprises an earth-rock cofferdam weir body 1, a supporting body 2 and a geomembrane 3, wherein an included angle between the upstream surface of the earth-rock cofferdam weir body 1 and the ground is generally 30-60 degrees, and the supporting body 2 is paved on the upstream surface of the earth-rock cofferdam weir body 1 so as to protect filling materials from being washed away and ensure the stability of the earth-rock cofferdam weir body 1; the geomembrane 3 is paved outside the support body 2, so that an anti-seepage effect can be achieved, and corners of the geomembrane 3 are fixed on the surface layer of the earth-rock cofferdam weir body 1 through a plurality of inserted bars 301, so that the stability of the support body 2 is enhanced, and a protection effect is achieved.

As shown in fig. 1, specifically, the supporting body 2 comprises a supporting groove 201, a gravel layer 202, an isolation pad 203, a plurality of strip-shaped partition plates 204, reinforcing ribs 205, soil bags 206 and concrete blocks 207, wherein the supporting groove 201 ensures the stability of the earth-rock cofferdam weir body 1 under the impact of water flow; the gravel layers 202 are paved on the bottom wall of the supporting groove 201, gaps among the gravel layers 202 are large, evaporation of water is accelerated, and water scattering property of the earth-rock cofferdam weir body 1 is guaranteed; the isolation pad 203 is laid on the surface of the gravel layer 202, the isolation pad 203 is made of steel plates, the isolation pad 203 can isolate the supporting groove 201 through the surface of the gravel layer 202, and when the supporting groove 201 is impacted by water flow, the water flow flowing into the periphery of the soil bag 206 can permeate into the gravel layer 202 to be dispersed, so that the supporting groove 201 can drain water in time.

Specifically, a plurality of strip-shaped partition plates 204 are uniformly fixed at the top of the isolation pad 203, a plurality of reinforcing ribs 205 are inserted in the strip-shaped partition plates 204 at equal intervals, a plurality of gaps formed between the reinforcing ribs 205 and the strip-shaped partition plates 204 are all piled up with soil bags 206, the reinforcing ribs 205 are made of reinforced steel materials, the rigidity is high, the corrosion resistance is strong, an effective reinforcing effect is achieved on the soil bags 206, concrete blocks 207 are poured on the inner walls of the upper side and the lower side of the supporting groove 201, the stability of the supporting groove 201 is guaranteed by the concrete blocks 207, and displacement collapse is prevented when the supporting groove is flushed by a water body; the upper and lower both ends of strengthening rib 205 are all pre-buried in the inside of concrete block 207, further guaranteed the stability of strengthening rib 205 and overall structure, and make the firm support of a plurality of bar division board 204 at the top of keeping apart backing plate 203, thereby make soil bag 206 pile up in a plurality of clearances that form between strengthening rib 205 and the bar division board 204, stability is better, avoided soil bag 206 to adopt simple pile up the mode to receive the influence of rivers to appear the phenomenon that local slip, and then improve the effect to clay layer 102 upstream face overall support.

As shown in fig. 1, the earth-rock cofferdam weir body 1 comprises a shale layer 101 and a clay layer 102, the shale layer 101 and the clay layer 102 are tightly attached, the clay layer 102 is positioned on the upstream surface of the earth-rock cofferdam weir body 1, the shale layer 101 and the clay layer 102 are used as filling materials to be the foundation of the earth-rock cofferdam weir body 1, the support body 2 can be paved after the shale layer 101 and the clay layer 102 are built, and the support body 2 is paved on the surface layer of the clay layer 102.

As shown in fig. 2, embedded parts 208 are disposed on two sides of the concrete block 207, and one side of the embedded parts 208 outside the concrete block 207 is welded and fixed with four corners of the isolation pad 203, so that the stability of the surface of the gravel layer 202 can be improved, and the situation of sedimentation loss is not easy to occur.

The strip-shaped separation plates 204 are vertically distributed at the top of the separation pad 203, and the strip-shaped separation plates 204 are arranged at equal intervals; the strip-shaped partition plate 204 with the structure can more uniformly support the soil bags 206 at the top of the isolation pad 203, so that the soil bags 206 are prevented from sliding.

As shown in fig. 2, specifically, a plurality of rectangular openings are formed in the isolation pad 203, the lower ends of the rectangular openings are gravel layers 202, and the rectangular openings on the isolation pad 203 correspond to the positions of the soil bags 206 one by one, so that the isolation pad 203 can permeate water flowing into the periphery of the soil bags 206 into the gravel layers 202 through the rectangular openings, thereby ensuring the water dispersibility of the supporting groove 201 and prolonging the service life of the earth-rock cofferdam weir body 1.

As shown in fig. 3, the utility model further comprises an isolation screen cloth 209, the rectangular openings on the isolation pad 203 are internally and fixedly provided with the isolation screen cloth 209, and the peripheral edges of the isolation screen cloth 209 are fixedly connected with the inner wall of the rectangular opening on the isolation pad 203, and the isolation screen cloth 209 is made of steel wire gauze, so that the isolation screen cloth 209 can play a role in isolating and reinforcing the rectangular openings on the isolation pad 203, and the situation that a large amount of gravel layer 202 is lost is avoided.

As shown in fig. 1, the geomembrane 3 is integrally paved outside the top end of the soil bag 206, the geomembrane 3 is an impermeable material which integrates the functions of impermeable and drainage, high strength, large friction coefficient, puncture resistance, aging resistance, acid and alkali resistance and soil erosion resistance, the geomembrane 3 can protect and prevent seepage of the clay layer 102 by being integrally paved outside the support body 2, the soil bag 206 is further reinforced and stabilized, and the integral support effect is improved.

Working principle:

firstly, when the deep water area earth-rock cofferdam supporting structure is used, after the earth-rock cofferdam weir body 1 is built by taking a mud layer 101 and a clay layer 102 as filling materials, a supporting groove 201 is firstly excavated on the upstream surface of the clay layer 102, then a gravel layer 202 is paved on the bottom wall of the supporting groove 201, and then a separation pad 203 is paved and installed on the top surface of the gravel layer 202, at this time, concrete blocks 207 can be poured on the inner walls of the upper side and the lower side of the supporting groove 201, the upper end and the lower end of a reinforcing rib 205 are embedded in the concrete blocks 207 in the pouring process, and simultaneously four corners of the separation pad 203 and one end of an embedded part 208 positioned outside the concrete blocks 207 are welded and fixed.

Then can pile up the soil bag 206 in a plurality of gaps that form between strengthening rib 205 and the bar division board 204 to utilize geomembrane 3 whole to lay in the outside of soil bag 206 and protect, soil bag 206 can more stable lay on the isolation backing plate 203 under the spacing of strengthening rib 205 and bar division board 204, when supporting groove 201 receives the impact of rivers, the rivers that flow into around the soil bag 206 can permeate to the inside of gravel layer 202 and disperse, with this effect of guaranteeing supporting groove 201 drainage, thereby accomplish a series of works.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (8)

1. The utility model provides a deep water area earth-rock cofferdam supporting construction, its characterized in that includes earth-rock cofferdam weir body, supporting body and geomembrane, the supporting body shop in earth-rock cofferdam weir body upstream face, the geomembrane shop is in the supporting body outside, and the corner of geomembrane is fixed in through a plurality of inserted bar earth-rock cofferdam weir body top layer.

2. The deep water area earth-rock cofferdam supporting construction of claim 1, wherein the supporting body comprises a supporting groove, a gravel layer, an isolation base plate, a plurality of strip-shaped separation plates, reinforcing ribs, a soil bag and concrete blocks, wherein the supporting groove is arranged on the upstream surface of the earth-rock cofferdam weir body, the gravel layer is laid on the bottom wall of the supporting groove, the isolation base plate is laid on the surface of the gravel layer, the plurality of strip-shaped separation plates are uniformly fixed on the top of the isolation base plate, the plurality of reinforcing ribs are inserted in the strip-shaped separation plates at equal intervals, the soil bag is piled up in a plurality of gaps formed between the reinforcing ribs and the strip-shaped separation plates, the concrete blocks are poured on the inner walls of the upper side and the lower side of the supporting groove, and the upper end and the lower end of each reinforcing rib are pre-buried in the concrete blocks.

3. The deep water area earth-rock cofferdam supporting structure of claim 2, wherein said earth-rock cofferdam weir comprises a mud layer and a clay layer, said mud layer and said clay layer are tightly adhered, said clay layer is positioned on the upstream surface of said earth-rock cofferdam weir, and said supporting body is laid on the surface layer of said clay layer.

4. A deep water area earth-rock cofferdam supporting structure as claimed in claim 3, wherein the embedded parts are arranged on two sides of the concrete block, and one side of the embedded parts positioned outside the concrete block is welded and fixed with four corners of the isolation pad.

5. The deep water area earth-rock cofferdam supporting structure of claim 4, wherein the strip-shaped partition plates are vertically distributed at the top of the isolation pad, and the strip-shaped partition plates are equidistantly arranged.

6. The deep water area earth-rock cofferdam supporting structure of claim 5, wherein a plurality of rectangular openings are arranged in the isolating pad, and the rectangular openings on the isolating pad correspond to the positions of the earth bags one by one.

7. The deep water area earth-rock cofferdam supporting structure of claim 6, further comprising an isolation mesh, wherein the isolation mesh is fixed in the rectangular openings on the isolation pad, and the peripheral edges of the isolation mesh are fixedly connected with the inner walls of the rectangular openings on the isolation pad.

8. The deep water earth-rock cofferdam support structure of claim 7, wherein said geomembrane is integrally laid outside the top end of said earth bag.

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