Cutting slope drainage ditch

Abstract

The utility model provides a cutting slope drainage ditch, which relates to the technical field of municipal road drainage, and comprises a drainage ditch main body, waterproof geotextile covers the inner wall of the drainage ditch main body, a permeable pipe is arranged at the top of the waterproof geotextile, a sandy soil mixture is filled between the permeable pipe and the waterproof geotextile, and gravel is paved at the top of the sandy soil mixture. Planting soil is laid on the top of the gravel, permeable geotextile is arranged on the outer side of the gravel and the outer side of the planting soil, it can be guaranteed that collected water of the drainage ditch body does not seep outwards by laying the waterproof geotextile on the inner wall of the drainage ditch body, and the soft permeable pipe placed in the drainage ditch body has the advantages of being high in compression resistance and tension resistance cavity degree and long in service life; a drainage path can be guaranteed to be smooth, the planting soil, the gravel and the sandy soil mixture which are sequentially arranged in the whole structure from top to bottom can serve as a filtering system, plants at the top of the planting soil can absorb and digest a part of catchment water, and the whole structure prevents external impurities from entering the drainage ditch to cause blockage of the drainage ditch.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal road drainage, in particular to a road cutting slope drainage ditch. Background Art

[0002] In the design of existing road cutting slope foot drainage ditch, reinforced concrete drainage ditch or prefabricated U-shaped ditch is mostly used, and then the drainage ditch is covered by adding drainage grates.

[0003] When this type of drainage ditch is blocked, the location of the blockage cannot be determined in time, and the drainage grates need to be opened for section-by-section inspection and clearing. However, the overall length of the drainage ditch is generally long. When blockage occurs, the operator needs to inspect the entire blockage. The drainage grates of the drainage ditch are generally made of metals such as cast iron, and are relatively heavy. The operator needs to open each drainage grate, which requires high work intensity. In addition, the drainage grates may break due to external environmental factors during long-term use, causing external debris to enter the drainage ditch, thereby causing blockage of the drainage ditch. Utility Model Content

[0004] The purpose of the utility model is to solve the following problems existing in the prior art:

[0005] When this type of drainage ditch is blocked, the location of the blockage cannot be determined in time, and the drainage grates need to be opened for section-by-section inspection and clearing. However, the overall length of the drainage ditch is generally long. When blockage occurs, the operator needs to inspect the entire blockage. The drainage grates of the drainage ditch are generally made of metals such as cast iron, and are relatively heavy. The operator needs to open each drainage grate, which requires high work intensity. In addition, the drainage grates may break due to external environmental factors during long-term use, causing external debris to enter the drainage ditch, thereby causing blockage of the drainage ditch.

[0006] In order to solve the problems existing in the prior art, the utility model provides a road cutting slope drainage ditch, including a drainage ditch main body, the inner wall of the drainage ditch main body is covered with a waterproof geotextile, a permeable pipe is placed on the top of the waterproof geotextile, a sand-soil mixture is filled between the permeable pipe and the waterproof geotextile, sand and gravel are laid on the top of the sand and gravel, planting soil is laid on the top of the sand and gravel, and permeable geotextiles are arranged on the outside of the sand and gravel and the planting soil.

[0007] The utility model provides a drainage ditch for a road cutting slope.

[0008] Furthermore, the drainage ditch body is divided into a slope portion, a road surface portion and a ditch portion, wherein the ditch portion is arranged at the bottom of the road surface portion.

[0009] Furthermore, the waterproof geotextile covers the inner wall of the drainage ditch body and extends to the inside of the road surface.

[0010] Furthermore, the water-permeable pipes are soft water-permeable pipes and there are eight water-permeable pipes in total, with two water-permeable pipes in a group and arranged perpendicularly and parallel to each other.

[0011] Furthermore, the permeable geotextile is arranged inside the waterproof geotextile, and a gap is left between the bottom of the permeable geotextile and the inner wall of the waterproof geotextile, and the permeable pipe is arranged inside the gap.

[0012] Furthermore, the sand and gravel are graded crushed stone filter materials, and the particle size thereof decreases gradually from top to bottom.

[0013] Furthermore, a greening body is arranged on the top of the planting soil, and the greening body is mainly paradise grass or Manila grass.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model discloses laying waterproof geotextile on the inner wall of the drainage ditch main body can ensure that the collected water of the drainage ditch main body does not seep out, ensures that the collected water is discharged smoothly along the drainage ditch main body, and the soft permeable pipe placed in the drainage ditch main body has the characteristics of high pressure and tensile resistance and long service life, and the permeable pipe is all-round permeable to water, which can ensure the smooth drainage path, and the planting soil, sand and gravel and sand-soil mixture arranged in sequence from top to bottom in the overall structure can all be used as a filtering system, wherein the plants on the top of the planting soil can also absorb and digest a part of the collected water, thereby reducing the drainage pressure of the drainage ditch, and the overall structure avoids the blockage of the drainage ditch caused by the entry of external debris into the drainage ditch, and can both ensure smooth drainage and green the drainage ditch area, thereby achieving an aesthetic and economical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the drainage ditch main body of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the drainage ditch main body of the utility model;

[0019] Figure numerals: 1. Drainage ditch main body; 2. Waterproof geotextile; 3. Permeable pipe; 4. Sand-soil mixture; 5. Sand and gravel; 6. Planting soil; 7. Permeable geotextile. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0021] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0022] Example 1

[0023] like Figure 1-3 As shown, a road cut slope drainage ditch comprises a drainage ditch body 1, wherein the drainage ditch body 1 is divided into a slope part, a road surface part and a ditch part, wherein the ditch part is arranged at the bottom of the road surface part, the inner wall of the drainage ditch body 1 is covered with a waterproof geotextile 2, the waterproof geotextile 2 covers the inner wall of the ditch of the drainage ditch body 1 and extends to the inside of the road surface part, a permeable pipe 3 is placed on the top of the waterproof geotextile 2, the permeable pipe 3 is a soft permeable pipe and there are eight permeable pipes 3, each two permeable pipes 3 are arranged in a group, perpendicular to each other, and the permeable pipe 3 and the waterproof geotextile are arranged in parallel. A sand-soil mixture 4 is filled between the geotextiles 2, and gravel 5 is laid on the top of the sand-soil mixture 4. The gravel 5 is a graded crushed stone filter material, and its particle size gradually decreases from top to bottom. Planting soil 6 is laid on the top of the gravel 5, and a greening body is arranged on the top of the planting soil 6, and the greening body is mainly paradise grass or Manila grass. Permeable geotextile 7 is arranged on the outside of the gravel 5 and the planting soil 6. The permeable geotextile 7 is arranged on the inside of the waterproof geotextile 2, and a gap is left between the bottom of the permeable geotextile 7 and the inner wall of the waterproof geotextile 2, and a permeable pipe 3 is arranged inside the gap.

[0024] Description of the working principle: First, when the overall structure is working, the external sewage enters the drainage ditch main body 1, contacts the planting soil 6 and gradually infiltrates. During the infiltration process, the plant roots inside the planting soil 6 absorb part of the sewage, and then the sewage passes through the gravel 5. The gravel 5 blocks most of the particles in the sewage. After passing through the gravel 5, the sewage passes through the permeable geotextile 7 and enters the sand-soil mixture 4, and gradually accumulates between the sand-soil mixture 4 and the waterproof geotextile 2. The accumulated sewage eventually passes through the wall of the permeable pipe 3 and enters the permeable pipe 3. The drainage pipe 3 discharges the sewage to the municipal pipe network.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A road cutting slope drainage ditch, comprising a drainage ditch body (1), characterized in that: The inner wall of the drainage ditch body (1) is covered with a waterproof geotextile (2), a permeable pipe (3) is placed on the top of the waterproof geotextile (2), a sand-soil mixture (4) is filled between the permeable pipe (3) and the waterproof geotextile (2), gravel (5) is laid on the top of the sand-soil mixture (4), planting soil (6) is laid on the top of the gravel (5), and permeable geotextiles (7) are arranged on the outside of the gravel (5) and the planting soil (6).

2. A road cutting slope drainage ditch according to claim 1, characterized in that: The drainage ditch body (1) is divided into a slope part, a road surface part and a ditch part, wherein the ditch part is arranged at the bottom of the road surface part.

3. A road cutting slope drainage ditch according to claim 2, characterized in that: The waterproof geotextile (2) covers the inner wall of the drainage ditch body (1) and extends to the inside of the road surface.

4. A road cutting slope drainage ditch according to claim 1, characterized in that: The water-permeable pipes (3) are soft water-permeable pipes and there are eight water-permeable pipes (3) in total, with two water-permeable pipes (3) forming a group and arranged perpendicularly and parallel to each other.

5. A road cutting slope drainage ditch according to claim 1, characterized in that: The permeable geotextile (7) is arranged inside the waterproof geotextile (2), and a gap is left between the bottom of the permeable geotextile (7) and the inner wall of the waterproof geotextile (2), and the permeable pipe (3) is arranged inside the gap.

6. A road cutting slope drainage ditch according to claim 1, characterized in that: The sand and gravel (5) is a graded crushed stone filter material, and its particle size gradually decreases from top to bottom.

7. A road cutting slope drainage ditch according to claim 1, characterized in that: A greening main body is arranged on the top of the planting soil (6), and the greening main body is mainly paradise grass or Manila grass.

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