Irrigation canal

Abstract

The utility model discloses an irrigation canal, which is positioned on the field surface of a planting land and comprises a broken stone hardcore buried below the field surface, and a concrete bottom plate and a cast-in-place concrete canal shoulder which are arranged on the broken stone hardcore, the broken stone hardcore is used for improving the foundation bearing capacity; the concrete bottom plate and the cast-in-place concrete channel shoulder are used for forming a diversion trench for irrigation water to flow; the multiple concrete bottom plates and the multiple cast-in-place concrete channel shoulders are arranged in an array mode in the water flow direction. An expansion joint is formed between every two adjacent cast-in-place concrete channel shoulders in the water flow direction and used for providing elastic deformation space for the cast-in-place concrete channel shoulders. The broken stone hardcore is arranged below the concrete bottom plate, a soft soil layer below the concrete bottom plate is replaced, the bearing capacity of a foundation bearing layer can be improved, the settlement amount of a foundation is reduced, and the condition that the bottom of a canal is not flat is improved; by arranging the expansion joints at the joints of the adjacent cast-in-place concrete channel shoulders, the possibility of channel deformation, leakage and other problems is reduced, and the irrigation effect and the farmland water resource utilization rate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to an irrigation canal. Background Art

[0002] An irrigation canal is an important part of a farmland irrigation system and is used to convey water source to farmland for irrigation. However, there are some problems in the long-term use of traditional irrigation canals, such as foundation settlement, uneven settlement and poor drainage. These problems will lead to channel deformation, leakage, uneven bottom of the channel, etc., affecting the irrigation effect and the water resource utilization rate of farmland. Content of the Utility Model

[0003] The purpose of the utility model is to provide an irrigation canal to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0004] The purpose of the utility model is realized by adopting the following technical scheme:

[0005] An irrigation canal is located on the surface of the planting land, and includes a gravel cushion layer buried below the surface and a concrete bottom slab and a cast-in-place concrete canal shoulder arranged on the gravel cushion layer;

[0006] The gravel cushion layer is used to improve the bearing capacity of the foundation;

[0007] The concrete bottom slab and the cast-in-place concrete canal shoulder are used to form a diversion channel for the irrigation water to flow;

[0008] Both the concrete bottom slab and the cast-in-place concrete canal shoulder are provided with a plurality of them and are arranged in an array along the water flow direction;

[0009] A expansion joint is arranged between two adjacent cast-in-place concrete canal shoulders along the water flow direction, and the expansion joint is used to provide an elastic deformation space for the cast-in-place concrete canal shoulder.

[0010] Further, the concrete bottom slab is made of C20 concrete.

[0011] Further, two groups of cast-in-place concrete canal shoulders are provided and are symmetrically and fixedly arranged on the top surface of the concrete bottom slab.

[0012] Further, the cast-in-place concrete canal shoulder is made of C20 concrete.

[0013] Further, a compacted backfill soil layer is arranged between the irrigation canal and the surface of the land.

[0014] Further, the compacted backfill soil layer contacts with the planting land to form a contact surface;

[0015] The contact surface forms an angle of 40-50 degrees with the surface of the land.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By arranging a crushed stone cushion layer under the concrete floor slab of the present utility model, the soft soil layer under the concrete floor slab is replaced, which can improve the bearing capacity of the foundation bearing stratum and reduce the settlement amount of the foundation, and improve the unevenness of the canal bottom; by arranging expansion joints at the joints of adjacent cast-in-place concrete canal shoulders, the possibility of problems such as channel deformation and leakage is reduced, and the irrigation effect and the water resource utilization rate of farmland are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an irrigation canal of the present utility model;

[0019] Figure 2 is Figure 1 the top view of.

[0020] In the figure:

[0021] 10. Crushed stone cushion layer;

[0022] 20. Concrete floor slab;

[0023] 30. Cast-in-place concrete canal shoulder;

[0024] 40. Expansion joint;

[0025] 50. Backfill soil layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, in combination with the drawings and the specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0027] As Figure 1-2 shown, an irrigation canal includes a crushed stone cushion layer 10 buried below the field surface and a concrete floor slab 20, a cast-in-place concrete canal shoulder 30, and an expansion joint 40 arranged on the crushed stone cushion layer 10; the crushed stone cushion layer 10 is used to improve the foundation bearing capacity; the concrete floor slab 20 and the cast-in-place concrete canal shoulder 30 are used to form a diversion channel for the irrigation water to flow; a plurality of concrete floor slabs 20 and cast-in-place concrete canal shoulders 30 are provided and arranged in an array along the water flow direction; an expansion joint 40 is provided between two adjacent cast-in-place concrete canal shoulders 30 along the water flow direction, and the expansion joint 40 is used to provide an elastic deformation space for the cast-in-place concrete canal shoulder 30.

[0028] Specifically, the concrete floor slab 20 is made of C20 concrete. The thickness of the concrete floor slab 20 is set to 10 cm. Two groups of cast-in-place concrete channel shoulders 30 are symmetrically and fixedly arranged on the top surface of the concrete floor slab 20. The cast-in-place concrete channel shoulders 30 are made of C20 concrete. The height of the cast-in-place concrete channel shoulders 30 is set to 50 cm, the width is set to 15 cm, and the spacing is set to 40 cm. The horizontal distance between the outer side wall of the cast-in-place concrete channel shoulders 30 and the outer periphery of the concrete floor slab 20 is set to 10 cm.

[0029] On the basis of the above structure, a compacted backfill soil layer 50 is provided between the irrigation channel and the field surface. The compacted backfill soil layer 50 contacts the cultivated land to form a contact surface; the contact surface forms an angle of 40 - 50 degrees with the field surface. The top surface of the backfill soil 50 is flush with the field surface, and the spacing between the top surface of the backfill soil 50 and the top surface of the cast-in-place concrete channel shoulders 30 is set to 20 cm.

[0030] Preferably, the expansion joint 40 is filled with three layers of felt and four coats of tar, which can prevent water leakage caused by deformation, cracking, etc. of the cast-in-place concrete channel shoulders 30.

[0031] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. An irrigation canal located on a field of planted land, characterized in that: It includes a crushed stone cushion layer buried below the field surface and a concrete bottom plate and a cast-in-place concrete channel shoulder arranged on the crushed stone cushion layer; The crushed stone cushion layer is used to improve the bearing capacity of the foundation; The concrete bottom plate and the cast-in-place concrete channel shoulder are used to form a diversion channel for irrigation water to flow; The concrete bottom plate and the cast-in-place concrete channel shoulder are both provided in plurality and arranged in an array along the water flow direction; An expansion joint is provided between two adjacent cast-in-place concrete channel shoulders along the water flow direction, and the expansion joint is used to provide elastic deformation space for the cast-in-place concrete channel shoulders.

2. An irrigation canal according to claim 1, characterized in that: The concrete base plate adopts C20 concrete.

3. An irrigation canal according to claim 1, characterized in that: The cast-in-place concrete channel shoulders are arranged in two groups and are symmetrically fixed on the top surface of the concrete bottom plate.

4. An irrigation canal according to claim 1, characterized in that: The cast-in-place concrete channel shoulder adopts C20 concrete.

5. An irrigation canal according to claim 1, characterized in that: A compacted backfill soil layer is arranged between the irrigation channel and the field surface.

6. An irrigation canal as claimed in claim 5, characterized in that: The compacted backfill soil layer contacts the planting land to form a contact surface; The contact surface forms an angle of 40-50 degrees with the field surface.

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