River embankment structure

Abstract

The utility model discloses an outside river bank protection structure, including reinforced concrete bottom board layer and main bank protection concrete layer, the lower part of reinforced concrete bottom board layer is equipped with the pine stake layer of vertical nail into the bank protection foundation layer, and the main bank protection concrete layer is casted on the upper portion of reinforced concrete bottom board layer, and the top of main bank protection concrete layer is fixed with rubber waterstop layer, and the cross section of rubber waterstop layer and reinforced concrete bottom board layer all shows one L type structure, and the cross section of main bank protection concrete layer shows one trapezoidal structure, the reinforced concrete bottom board layer with pine stake layer between is equipped with the concrete cushion layer, the pre -buried of reinforced concrete bottom board layer has a plurality of drain pipes, and the position of one end position of the water face of drain pipe is lower than the position of the backwater face one end, effect: practical, novel structure, construction firm, guarantees the strength and service life of outside river bank protection, and is convenient for later maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a river water conservancy engineering revetment, in particular to an outer river revetment structure. BACKGROUND

[0002] From ancient times to the present, the coastal area, the outer river revetment water conservancy engineering has been an important people's livelihood project. Because the engineering quantity of the outer river revetment is large, while giving consideration to the service life of the outer river revetment, the construction cost of the outer river revetment and the post-maintenance of the outer river revetment need to be considered. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem in the prior art and provides an outer river revetment structure.

[0004] In order to achieve the above-mentioned purpose, the utility model takes the following measures:

[0005] An outer river revetment structure, which comprises a reinforced concrete bottom plate layer and a main revetment concrete layer, a pine pile layer is vertically nailed into the revetment foundation layer below the reinforced concrete bottom plate layer, the main revetment concrete layer is poured on the upper part of the reinforced concrete bottom plate layer, a rubber waterstop belt layer is fixed to the top of the main revetment concrete layer, the cross sections of the rubber waterstop belt layer and the reinforced concrete bottom plate layer are both in an L-shaped structure, and the cross section of the main revetment concrete layer is in a trapezoidal structure.

[0006] A concrete cushion layer is arranged between the reinforced concrete bottom plate layer and the pine pile layer.

[0007] A plurality of drainage pipes are embedded in the reinforced concrete bottom plate layer, and the water-facing end of the drainage pipe is lower than the land-facing end.

[0008] Two layers of geotextiles are arranged on one side of the land-facing surface of the main revetment concrete layer, and the height of the two layers of geotextiles exceeds the height of the drainage pipes.

[0009] The land-facing surface of the main revetment concrete layer is provided with a backfill soil tamping layer, the top of the backfill soil tamping layer is higher than the bottom of the rubber waterstop belt layer, and the bottom of the backfill soil tamping layer is not higher than the bottom of the concrete cushion layer.

[0010] The length of the pine pile of the pine pile layer is not less than 6 meters, and the diameter is not less than 16 centimeters, and the top of the pine pile extends into the reinforced concrete bottom plate layer through the concrete cushion layer.

[0011] The utility model has the advantages of practicality, novel structure, firm construction, guaranteed strength and service life of the outer river revetment, and post-maintenance convenience. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a sectional plane structure diagram of the utility model. Detailed Implementation

[0013] An external riverbank revetment structure includes a reinforced concrete base slab layer 1 and a main revetment concrete layer 2. Below the reinforced concrete base slab layer 1, there is a layer of pine piles 3 vertically driven into the foundation of the revetment. The main revetment concrete layer 2 is poured on top of the reinforced concrete base slab layer 1. A rubber waterstop layer 4 is fixed on the top of the main revetment concrete layer 2. The cross-sections of the rubber waterstop layer 4 and the reinforced concrete base slab layer 1 are both L-shaped, while the cross-section of the main revetment concrete layer 2 is trapezoidal.

[0014] like Figure 1 As shown, during construction, the distance between adjacent pine piles in pine pile layer 3 is approximately 80 centimeters, and the pine piles are distributed in a rectangular array. The exterior of the pine piles undergoes anti-corrosion treatment to increase their corrosion resistance. Pine pile layer 3 can better serve as a support, and its use is low-cost with readily available raw materials.

[0015] The reinforced concrete base slab 1 has an L-shaped cross-section, with the bent side facing the lower pine pile layer 3. The downward-extending L-shaped bend serves to protect the pine pile layer 3. The thickness of the reinforced concrete base slab 1 is approximately 45 cm.

[0016] The width of the bottom surface of the main revetment concrete layer 2 is smaller than the width of the reinforced concrete base slab layer 1. The reinforced concrete base slab layer 1 forms a stepped surface 102 on the water-facing side. The width of the stepped surface 102 is not less than 50 centimeters, which facilitates construction and subsequent maintenance.

[0017] The rubber waterstop layer 4 can be fixed to the top of the main revetment concrete layer 2 by bolts. The rubber waterstop layer 4 has a certain elasticity and provides a certain buffering effect under the impact of waves.

[0018] A concrete cushion layer 5 is provided between the reinforced concrete base slab layer 1 and the pine pile layer 3. The concrete cushion layer 5 can provide a flat base layer, which is conducive to the installation and construction of the reinforced concrete base slab layer 1.

[0019] Drainage pipe 6 facilitates the discharge of accumulated water from the back side to the front side.

[0020] Several drainage pipes 6 are pre-embedded in the reinforced concrete base slab 1, with the water-facing end of the drainage pipe 6 positioned lower than the water-repellent end.

[0021] Two layers of geotextile 7 are provided on one side of the backwater surface of the main revetment concrete layer 2, and the height of the two layers of geotextile 7 exceeds the height of the drainage pipe 6.

[0022] The backwater surface of the main bank protection concrete layer 2 is provided with a backfill tamping layer 8, the top of the backfill tamping layer 8 is higher than the bottom surface of the rubber waterstop layer 4, and the bottom of the backfill tamping layer 8 is not higher than the bottom surface of the concrete cushion layer 5. The backfill tamping layer 8 adopts a layered tamping structure, and the thickness of each layer is less than 30 cm.

[0023] The length of the pine pile layer 3 is not less than 6 meters, and the diameter is not less than 16 cm. The top of the pine pile partially extends into the reinforced concrete bottom plate layer 1 after passing through the concrete cushion layer 5.

Claims

1. An outer riverbank revetment structure, comprising a reinforced concrete base slab (1) and a main revetment concrete layer (2), characterized in that: Below the reinforced concrete base slab (1) is a layer of pine piles (3) that are vertically driven into the foundation of the revetment. The main revetment concrete layer (2) is poured on the top of the reinforced concrete base slab (1). A rubber waterstop layer (4) is fixed on the top of the main revetment concrete layer (2). The cross-sections of the rubber waterstop layer (4) and the reinforced concrete base slab (1) are both L-shaped, and the cross-section of the main revetment concrete layer (2) is trapezoidal.

2. The riverbank revetment structure according to claim 1, characterized in that: A concrete cushion layer (5) is provided between the reinforced concrete base slab layer (1) and the pine pile layer (3).

3. A riverbank protection structure according to claim 1 or 2, characterized in that: Several drainage pipes (6) are pre-embedded in the reinforced concrete base slab (1), and the water-facing end of the drainage pipe (6) is lower than the water-repellent end.

4. The riverbank revetment structure according to claim 3, characterized in that: Two layers of geotextile (7) are provided on one side of the backwater surface of the main revetment concrete layer (2), and the height of the two layers of geotextile (7) exceeds the height of the drainage pipe (6).

5. The riverbank revetment structure according to claim 4, characterized in that: The backwater side of the main revetment concrete layer (2) is provided with a backfill compacted layer (8). The top height of the backfill compacted layer (8) is higher than the bottom height of the rubber waterstop layer (4), and the bottom height of the backfill compacted layer (8) is not higher than the bottom height of the concrete cushion layer (5).

6. The riverbank protection structure according to claim 5, characterized in that: The pine piles in the pine pile layer (3) are not less than 6 meters long and not less than 16 centimeters in diameter. The top of the pine piles passes through the concrete pad layer (5) and then extends into the reinforced concrete base slab layer (1).

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