Mechanical laying of a buried salt drainage pipe and method thereof

Abstract

The present application relates to a kind of mechanical laying of buried pipe salt pipe and its laying method, and its buried pipe salt pipe includes upper corrugated pipe and lower smooth solid wall pipe group;Upper corrugated pipe includes wave crest, wave trough, water collecting hole, identification slot;Lower is smooth solid wall pipe, pipe wall is not punched, and pipe material bottom is smooth;Upper corrugated pipe accounts for 2 / 3 of pipe material diameter, and lower smooth solid wall pipe accounts for 1 / 3 of pipe material diameter;Wave trough is provided with water collecting hole, and water collecting hole is arranged on identification slot and buried pipe salt wave trough vertical center line and is arranged along pipeline in parallel;Wave trough is provided with multiple penetrating pipe wall and is long strip hole, round hole or plum blossom hole slit-shaped water collecting hole;Pipe material uses polyethylene material, has excellent flexibility and pullout resistance, is favorable for mechanical laying.

Description

Technical Field

[0001] This invention relates to the field of concealed pipe salt drainage technology, and in particular to a mechanical method for laying concealed pipe salt drainage pipes. Background Technology

[0002] The underground drainage system collects saline-alkali soil through collection holes in the underground drainage pipes, and then discharges the salt and alkali through a network of underground drainage pipes. It is a fast and effective method for improving saline-alkali land. By controlling the groundwater level, it inhibits soil salinization. Using less irrigation water and natural rainfall, saline-alkali land can be rapidly desalinated within 2-5 years, preventing secondary salinization and achieving medium-to-high yields. It is currently widely used in saline-alkali land management in my country. It also has advantages such as a high degree of mechanization and automation. Existing concealed salt drainage pipes mostly use single-wall corrugated pipes in their construction. Water collection holes are drilled in the troughs around the pipe, which makes it easy for the collected salt water to seep back into the soil through the drainage holes. Due to the influence of the corrugated inner wall on water flow, salt and alkali will accumulate at the bottom of the pipe during drainage and cannot be effectively discharged, gradually clogging the drainage pipe and reducing the drainage effect. When concealed salt drainage pipes are manufactured, water collection holes are made around the corrugated pipe according to the design requirements, which reduces the original overall strength of the corrugated pipe. During construction, if mechanical laying is used, the pipe is easily broken, which affects the drainage effect and construction. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a mechanically laid underground salt drainage pipe. It employs a combination of an upper corrugated pipe and a lower smooth solid-walled pipe, ensuring that saline water does not leak back into the soil through the collection holes. The smooth bottom of the pipe does not obstruct water flow, making drainage more efficient and improving salt removal. Identification grooves are provided on the corrugations to ensure that the corrugated portion and collection holes are always at the top during mechanical laying of the underground salt drainage pipe.

[0004] To solve the aforementioned technical problem, the present invention adopts the following technical solution: A mechanically laid underground salt drainage pipe includes a pipe material consisting of an upper corrugated tubular structure and a lower smooth solid-walled tubular structure. The upper corrugated tubular structure is provided with crests, troughs, water collection holes, and identification grooves.

[0005] The aforementioned mechanically laid underground salt drainage pipe, wherein the upper corrugated tubular structure and the lower smooth solid-walled tubular structure are made of polyethylene material, which has excellent flexibility and tensile strength, and is conducive to mechanical laying; the upper corrugated tubular structure can improve the ring stiffness of the pipe, making the pipe less prone to deformation when buried underground.

[0006] The aforementioned mechanically laid underground salt drainage pipe has its crests and troughs evenly distributed in the horizontal direction. The width and height of the crests and troughs are evenly set according to the pipe diameter. The upper corrugated tubular structure occupies 2 / 3 of the pipe diameter, and the lower smooth solid-walled tubular structure occupies 1 / 3 of the pipe diameter. This can prevent secondary leakage of groundwater, while the lower smooth solid wall can reduce obstruction and quickly drain groundwater, effectively extending the service life of the salt drainage system.

[0007] The aforementioned mechanically laid underground salt drainage pipe has an identification groove at the crest. During construction, the construction machinery uses the identification groove to ensure that the corrugated tubular part of the pipe is always at the top and the solid tubular part is at the bottom of the trench. The underground salt drainage pipe can be identified by the machinery to ensure that the corrugated tubular part of the pipe is always at the top and the solid tubular part is at the bottom of the trench, thus preventing the salt drainage pipe from being laid in the wrong direction and losing its salt drainage effect.

[0008] The aforementioned mechanically laid underground salt drainage pipe has water collection holes set on the troughs. The water collection holes are arranged on the vertical center line of the troughs of the salt drainage pipe, and are mainly used to collect saline water in the soil. The aforementioned mechanically laid underground salt drainage pipe has multiple slit-shaped water collection holes that cut through the pipe wall to form elongated holes, round holes, or quincunx-shaped holes in the troughs. Water is drawn in through these collection holes, with a water inlet area of ​​25-50 cm² per meter of each pipe. 2 The saline water, which dissolves soil salts, is washed down from the top of the soil by precipitation or irrigation water and seeps downwards through the water collection holes at the top of the salt drainage pipe into the internal pipe.

[0009] The aforementioned mechanically laid underground salt drainage pipe features a smooth, solid-walled tubular structure at the bottom. The pipe wall is not perforated, which improves the salt drainage effect. During rainfall or irrigation, the collected saline body in the drainage pipe will not leak through the water collection hole. When the saline body is discharged, the bottom of the pipe is smooth and will not obstruct the water flow, thus preventing the accumulation of salt and alkali in the pipe and improving the salt drainage effect.

[0010] A method for laying mechanically installed underground salt drainage pipes is disclosed. During the field laying operation, the mechanically installed underground salt drainage pipes are laid according to the designed slope. The laying machine identifies the identification grooves set on the crests of the pipes, ensuring that the corrugated pipe structure is always laid on the upper part and the solid pipe structure is laid on the lower bottom of the trench. The pipes are connected by a sealed connection method, which improves the drainage, salt removal and anti-siltation effects.

[0011] Beneficial effects: This invention provides a mechanically laid underground salt drainage pipe, which has the following advantages: it enables the laying machinery to carry out construction more accurately and conveniently through the identification device; the upper part of the pipe is set as a corrugated pipe, which effectively increases its structural pressure bearing capacity; the bottom of the pipe is dense and smooth, which effectively increases the overall structural stability of the pipeline and does not obstruct the water flow, making the drainage of the pipeline network smoother, ensuring that the salt water in the pipeline will not accumulate, extending the service life of the pipeline and improving the salt drainage effect. Attached Figure Description

[0012] Figure 1 This is a 3D schematic diagram of a concealed salt drainage pipe. Figure 2 This is a schematic diagram of the salt drain pipe in Example 1. Figure 3 This is a schematic diagram of the salt drain pipe in Example 2. Figure 4 This is a schematic diagram of the salt drain pipe in Example 3. The components in the attached diagram are labeled as follows: 1. Crest; 2. Trough; 3. Water collection hole; 4. Identification groove; 5. Smooth solid-walled tubular structure. Detailed Implementation

[0013] To better explain the present invention and enable those skilled in the art to accurately understand its technical principles, structure, usage, effects, etc., detailed explanations are provided below using examples.

[0014] Example 1 Reference Figure 1 and Figure 2 The mechanically laid underground salt drainage pipe of this embodiment includes a pipe composed of an upper corrugated tubular structure and a lower smooth solid-walled tubular structure 5, with each section of pipe being 12m long. The upper corrugated tubular structure includes crests 1, troughs 2, water collection holes 3, and identification grooves 4. In this embodiment, the pipe is made of polyethylene. The crests 1 and troughs 2 are evenly distributed horizontally in a mechanically laid underground salt drainage pipe. The nominal pipe diameter is 160mm, its waveform is U-shaped, the minimum average inner diameter is 144mm, and the wave height is 8mm. The upper corrugated tubular section occupies 2 / 3 of the pipe diameter, and the lower smooth solid-walled tubular section occupies 1 / 3 of the pipe diameter. Identification grooves 4 are provided at the top of crests 1, allowing for mechanical identification to ensure that the corrugated tubular section is always at the top and the solid-walled tubular section is at the bottom of the trench. Water collection holes 3 are provided on troughs 2, arranged along the vertical center line of the troughs. Multiple elongated water collection holes 3 penetrating the pipe wall are provided on troughs 2. The size of the water collection holes 3 can be vertically arranged, with a length of 10mm and a width of 1.5mm. The water inlet area per meter of each pipe is 25-50cm². 2 The lower part has a smooth, solid-walled tubular structure with no holes drilled in the wall; the pipes can be connected by sealing with fittings.

[0015] Example 2 Reference Figure 1 and Figure 3 This embodiment of a mechanically laid underground salt drainage pipe includes a corrugated upper structure and a smooth, solid-walled lower structure. Each pipe section is 17m long. The upper corrugated structure includes crests 1, troughs 2, water collection holes 3, and identification grooves 4. The pipe is made of polyethylene. The crests 1 and troughs 2 are evenly distributed horizontally in the mechanically laid underground salt drainage pipe. The nominal diameter of the pipe is 110mm, its waveform is U-shaped, the minimum average inner diameter of the pipe is 97mm, and the wave height is 6.5mm. The corrugated tubular section occupies 2 / 3 of the pipe diameter, while the smooth, solid-walled tubular section occupies 1 / 3 of the pipe diameter. An identification groove is set at the top of the corrugated section 1, allowing for mechanical identification via the concealed brine drainage pipe, ensuring the corrugated tubular section is always at the top and the solid-walled tubular section at the bottom of the trench. Water collection holes 3 are set on the troughs 2, arranged along the vertical center line of the troughs. Multiple circular water collection holes 3 penetrating the pipe wall are set in the troughs, with a diameter of 1.5-2mm. The water inlet area per meter of each pipe is 25-50 cm². 2 The lower part has a smooth, solid-walled tubular structure with no holes drilled in the pipe wall; the pipes can be connected by sealing with fittings.

[0016] Example 3 Reference Figure 1 and Figure 4 This embodiment of a mechanically laid underground salt drainage pipe includes each pipe section set to 12m / piece or 17m / piece, with an upper corrugated pipe structure and a lower smooth solid wall pipe structure 5. The upper corrugated tubular section includes crests 1, troughs 2, water collection holes 3, and identification grooves 4. The pipe is made of polyethylene. Crests 1 and troughs 2 are evenly distributed horizontally in a mechanically laid underground salt drainage pipe. The nominal pipe diameter is 90mm, its waveform is U-shaped, the minimum average inner diameter is 77mm, and the wave height is 6.5mm. The upper corrugated tubular section occupies 2 / 3 of the pipe diameter, and the lower smooth solid-walled tubular section occupies 1 / 3 of the pipe diameter. An identification groove is set at the top of crest 1, allowing for mechanical identification of the underground salt drainage pipe, ensuring that the corrugated tubular section is always at the top and the solid-walled tubular section is at the bottom of the trench. Water collection holes 3 are set on troughs 2, arranged along the vertical center line of the troughs. Multiple water collection holes 3, penetrating the pipe wall in a quincunx pattern, are set in troughs 2. The quincunx hole diameter can be set to 2-2.5mm, and the water inlet area per meter of each pipe is 25-50cm². 2 The lower part has a smooth, solid-walled tubular structure with no holes drilled in the pipe wall; the pipes can be connected by sealing with fittings.

[0017] The mechanically laid underground salt drainage pipe method in this embodiment includes identification using underground salt drainage pipe laying machinery. The underground salt drainage pipe is constructed according to design requirements, following the designed slope. The laying machinery identifies the identification groove 4, ensuring the correct direction (crest 1 upwards, smooth solid-walled tubular section 5 downwards) is achieved by laying the pipe into the construction trench. Connections are made using sealed fittings. After construction, through precipitation, underground aquifers, and irrigation water, the saline water above the horizontal centerline of the pipe is collected through the collection holes 3 on the trough 2 and then effectively discharged through the smooth solid-walled tubular section 5 into a collection well. Regardless of whether free fall or pipeline pump pressurization is used for salt drainage, a collection well should be installed at the lower point of the fall for convenient centralized collection and treatment.

[0018] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A mechanically laid underground salt drainage pipe, characterized in that, The pipe consists of an upper corrugated tubular structure and a lower smooth solid-walled tubular structure. The upper corrugated tubular structure is provided with crests, troughs, water collection holes, and identification grooves. The inner diameter of the salt discharge pipe at the crest is larger than the inner diameter of the salt discharge pipe at the trough. The tube, consisting of the upper corrugated tubular structure and the lower smooth solid-walled tubular structure, is made of polyethylene material. The crests and troughs are evenly distributed in the horizontal direction of a mechanically laid underground salt drainage pipe. The width and height of the crests and troughs are evenly set according to the pipe diameter. The upper corrugated tubular structure occupies 2 / 3 of the pipe diameter, and the lower smooth solid-walled tubular structure occupies 1 / 3 of the pipe diameter. The top of the crest is provided with an identification groove. During construction and laying, the construction machinery uses the identification groove to ensure that the corrugated tubular part of the pipe is always at the top and the solid tubular part is at the bottom of the trench. Water collection holes are provided on the trough, and the water collection holes are arranged on the vertical center line of the trough of the salt discharge pipe. The trough is equipped with multiple slit-shaped water collection holes that cut through the pipe wall to form elongated holes, round holes, or quincunx-shaped holes. Water is drawn in through these collection holes, with a water inlet area of ​​25-50 cm² per meter of each pipe. 2 ; The lower part has a smooth, solid-walled tubular structure with no holes drilled in the tube wall; When the mechanically laid underground salt drainage pipe is laid in the field, it is laid according to the designed slope. The laying machine identifies the identification groove set on the crest of the pipe and lays the corrugated pipe structure on the upper part and the solid pipe structure on the lower bottom of the trench. The connection is made by sealing the pipe fittings.

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