RU203503U1 - Drainage casing padded product (DONI-1) - Google Patents

Abstract

The utility model relates to the field of land reclamation and artificial lowering of the level of ground (aggressive and non-aggressive) waters with natural transportation of water or water mixture over short distances. Drainage casing padding is made in the form of a "sleeve" of synthetic geotextile 0.8 mm thick, 150 mm in diameter, 6 m long, filled with expanded clay gravel of 10-40 mm fraction in accordance with GOST 32496-2013 of 12/30/2013. The material for the shell is made of a synthetic geotextile with a thickness of 0.8 mm, the width and length of the workpiece, depending on the declared dimensions of the product. For each declared product, blanks are made from rolled synthetic materials. The width and length of the strip of the workpiece is taken depending on the calculated diameter and length of the product. To increase the strength of the shell, the "sleeve" is made by threading the two sides of the workpiece in size, depending on the design solution. By means of a vibro-mechanical method, the “sleeve” shell is filled with expanded clay gravel of fraction 10-40 mm with a device at the ends of the “sleeve” for gripping areas. Before and after filling, the shell is clamped using a polyethylene rack and pinion fastener, selected depending on the total weight of the product and the thickness of the geotextile sheet. Drainage casing stuffed products are connected to each other using a polyethylene rack-and-pinion fastener and a detachable polyethylene sleeve, put on at the junction of adjacent products. The achieved technical result consists in the optimal ratio of the diameter and length of the product, the thickness of the geotextile sheet, the bulk density of the filler - expanded clay, the composition of the drained soil and the depth of the product, which affect the mechanical strength of the product shell during laying, "closed / trenchless" method, using the HDD installation or NNB.

Description

The utility model relates to the field of reclamation and artificial lowering of the level of aggressive and non-aggressive groundwater with natural transportation of water or water mixture over short distances.

Of the types of drainages used in the Russian Federation in the field of reclamation and artificial lowering of the groundwater level, shallow and deep drainages made of free-flowing natural and geosynthetic materials, as well as drainages from ceramic, asbestos-cement and polyethylene pipes, are actively used and used.

The aforementioned drainage pipes produced in the Russian Federation for the needs of land reclamation and dewatering are limited by the conditions and possibilities of use, in the "declared area", due to:

- high cost of drainage pipes with the laying of pipelines "open / trench" in the ground;

- inability to lay pipelines from drainage pipes in a "closed / trenchless" way in the ground.

The closest to the claimed technical solution is a solution that meets the conditions of GOST 54475-2011 - "National Standard of the Russian Federation" Polymer pipes with a structured wall and fittings for them for external sewage systems ", introduced in 2012-05-01, Moscow.

The disadvantages of this technical solution are:

- the lack of the possibility of laying pipelines from drainage "gravity" pipes, "closed / trenchless" method in the ground;

- high cost of drainage pipes with the laying of pipelines "open / trench" in the ground.

The problem to be solved by the declared utility model is to create and use a product that meets modern requirements in terms of cost, ease of manufacture, durability, manufacturability in the construction and operation of melioration and dewatering systems.

The task is solved by manufacturing a drainage product - a stuffed shell, in the form of a "sleeve" made of synthetic geotextile, GOST 53225-2008, with a web thickness of 0.8 mm, a diameter of 150 mm, a length of 6 m, filled with expanded clay gravel of fraction 10-40 mm in accordance with GOST 32496-2013 of 12/30/2013. The product is placed in the drained soil using a trenchless method using horizontal directional or directional drilling (HDD and NNB), and the products laid in the ground are combined into a single drainage system for reclamation or dewatering in the soil.

The achieved technical result consists in the optimal ratio of the diameter and length of the product, the thickness of the geotextile "sleeve" and the volumetric weight of the expanded clay filler, the composition of the drained soil and the depth of the product, affecting the mechanical strength of the shell when laying the product in a "closed / trenchless" way using HDD or NNB.

The utility model is illustrated by drawings / sketches, which do not cover and, moreover, do not limit the entire scope of the claims of this technical solution, but are only illustrative materials of a particular case of implementation:

FIG. 1. Longitudinal view of the product.

FIG. 2. Longitudinal section of the product "a-a".

FIG. 3. Cross-section of the product "b-b".

FIG. 4. View "c-c" from the end of the product.

FIG. 5. Product with clamp and grip for the "sleeve".

FIG. 6. Isometric view of the product А-А with the gripping area.

FIG. 7. Unit of the product "capture".

FIG. 8. Joint cover assembly of adjacent products.

Drainage casing stuffing is made as follows:

- As a material for the shell, a synthetic geotextile cloth with a thickness of 0.8 mm, width and length of the workpiece, depending on the declared dimensions of the product, is used.

- Blanks for the product are made of rolled synthetic materials. The width and length of the strip of the workpiece is taken depending on the calculated diameter and length of the product.

- The "sleeve" shell is made by threading the two sides of the workpiece according to the size depending on the design solution.

- The shell-"sleeve" is filled with expanded clay gravel of fraction 10-40 mm with a device at the ends of the "sleeve" areas for capture.

- Before and after filling, the casing is clamped using a polyethylene rack and pinion fastener, selected depending on the volumetric weight of the product and the thickness of the geotextile sheet.

Drainage systems are built from the drainage casing rammed articles of the described design, connecting separately the ends of adjacent products using a polyethylene / plastic gripper and a detachable element made of a polyethylene pipe, put on the joint of adjacent products. Drainage casing ramming product is intended for collection and transportation of underground groundwater and water mixtures over a short distance.

The main method of laying drainage shell ramming products is HDD (horizontal directional drilling) and HDD (directional drilling). The accepted methods of laying pipelines make it possible to reduce to a minimum the volume of "open" earthworks and, with them, other non-production costs.

The declared useful model of drainage casing padded products allows to quickly and technologically transport the product to the place where the drains are laid and during the construction process to minimize the disturbance of the natural earth cover, and in the building sites, disturbance of landscaping and landscaping. In addition, the use of the declared products significantly reduces the cost of construction of amelioration and dewatering systems.

Claims (2)

1. Drainage casing rammed product for the collection and transportation of underground groundwater and aqueous mixtures of aggressive and non-aggressive, including a casing in the form of a sleeve made of geotextile, 0.8 mm thick, 150 mm in diameter, 6 m long, filled with expanded clay gravel fraction 10- 40 mm, while the casing is clamped on both sides with the help of polyethylene rack and pinion fasteners. 2. Drainage casing rammed product according to claim 1, characterized in that the optimal ratio of the diameter and length of the product, the thickness of the geotextile "sleeve" and the bulk density of the expanded clay filler, the composition of the drained soil and the depth of the product placement affect the mechanical strength of the casing when laying the product closed / trenchless method using HDD or HDD.

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