{"id":2037,"date":"2020-09-12T11:38:03","date_gmt":"2020-09-12T11:38:03","guid":{"rendered":"https:\/\/beltps.com\/?page_id=2037"},"modified":"2023-01-23T12:49:43","modified_gmt":"2023-01-23T12:49:43","slug":"direct-pipe-technology","status":"publish","type":"page","link":"https:\/\/beltps.com\/it\/direct-pipe-technology\/","title":{"rendered":"Tecnologia Direct Pipe"},"content":{"rendered":"\t\t
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Direct Pipe technology<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Direct Pipe Technology in BELTRUBOPROVODSTROY<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Thanks to the unique Direct Pipe\u00ae technology<\/strong><\/em>, BELTRUBOPROVODSTROY JSC<\/strong> has opened up,\u00a0 propose to the Customers and successfully performs new possibilities for trenchless pipeline laying under almost any ground conditions.\u00a0<\/p>

For years of implementing we have gained not only experience, staff qualification and all the modern equipment needed, but also the trust of the participants of the industry.<\/p>

BELTRUBOPROVODSTROY JSC<\/strong> is a pioneer of this technology, successfully tested by the company and shown to be effective at a construction site in Serbia when laying a pipeline under the Danube with a total length of 1,420 meters, which is an absolute record for Europe and the third result in the world.<\/p>

The Direct Pipe method<\/strong><\/em> combines the benefits of microtunneling<\/a> and horizontal directional drilling<\/a> technology. In just one step, a previously prepared and welded pipeline can be laid at the same time as the well\u2019s drilling. This technology allows you to quickly and economically lay pipelines with a diameter of 1220-1420 mm and a length of more than 1500 meters.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Technology description<\/h4>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
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Direct Pipe\u00ae technology combines the advantages of microtunnelling and HDD technology. In one step only, a prefabricated pipeline can be installed and the required borehole excavated at the same time. This allows speedy and highly economic installation of pipelines with lengths of more than 1,500 meters.\n<\/p>

\nThe well is formed by drilling, removal by pumps of the drilled rock through transport communications located inside the shield and pipeline. Well formation by drilling and pipeline pushing are synchronized with each other.\n<\/p>

\n\nRock drilling is carried out by cutting heads of 3 types, depending on the geological structure and category of soils (sands, clays, limestones, gravel, rocks), water and drilling mud are fed into the face through feeding communications located inside the shield and pipeline.\n<\/p>

\nWater and bentonite-based drilling mud are used to wash out the rock, remove the drilled rock and fill the pipe space. The annular space in the well is filled with bentonite solution, which provides lubrication and reduces friction during punching.\n<\/p>

\nIn case of wear of the cutting bodies, it is possible to replace the cutting tool by removing the shield and the pipeline in reverse with the help of a pusher and then laying the pipeline along the same trajectory.\n<\/p>

\nReverse extraction is possible if there is a distance that allows you to place the extracted lash of the pipeline without undocking.\n<\/p>

\nIn cramped conditions, with a limited distance of placement of the pipeline whip, it is possible to work with short sections of the pipeline, welding short sections during sinking and punching.\n<\/p>

\nAt the end of the sinking, the shield goes to the specified mark (ground surface, pit), the shield and the pipeline are undocked, the supply and transport communications are removed from the pipeline, the rail tracks are dismantled, along which the working personnel move, if necessary, repair.\n<\/p>

\nThis technology allows you to safely work with all types of insulation (polyethylene, polypropylene, fiberglass, epoxy coating, concrete coating), the thickness of the insulation coating is determined by the project.\n<\/p>

\nIt should be noted that the two main components of the tunnel equipment are the AVN tunneling machine used for microtunneling and the pipe pusher used for NNB (directional drilling) they are used by specialized enterprises, which allows companies, after a minor modernization, to expand their technological capabilities and implement various methods of construction of underwater crossings (NNB, microtunneling and Direct Pipe).<\/blockquote><\/span>\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t

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Additional information<\/h4>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
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Areas of application of Direct Pipe technology\n