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How are reinforced concrete jacking pipes made?

Reinforced concrete pipe jacking is a type of sewage pipe made of cement, steel bars, sand, gravel and other raw materials and mixed with a centrifuge. It is mainly used for drainage tasks such as urban rainwater, sewage or farmland drainage and irrigation. It It is a construction method for laying underground pipelines without excavation, which means digging two working wells at both ends, and then pushing the pipes in from one end to the other underground. But instead of pushing directly into the soil, a machine head is used to drill a hole in front and push the pipe in while drilling. The soil produced by drilling holes passes through a mud-water loop pipe connected to the machine head. Water is transferred inward to turn the mud into muddy water, and the muddy water is pumped to the ground and transported away. After the pipelines are connected, the opening of the working well is narrowed and covered with a manhole cover to become an inspection well in the future. The advantages are that it does not affect the surrounding environment or has a small impact, the construction site is small, and the noise is low. And it can work deep underground, which is an advantage that cannot be compared with excavation and buried pipes. However, pipe jacking technology also has shortcomings, such as long construction time and high project cost.

To choose qualified reinforced concrete pipe jacking, you must first check whether the manufacturer is a regular manufacturer that has applied for a production license. Only in this way can you ultimately protect yourself and everyone else's interests. The production license information of relevant companies can be found in the national Check the website of the General Administration of Quality Supervision, Inspection and Quarantine. Next, check the product logo. According to the national standard GBT11836-2009 "Concrete and Reinforced Concrete Pipe Jacking", clause 9.1 stipulates that the surface of the factory cement pipe should be marked with the company name, trademark, production license number, product mark, production date and "Strictly No Collision" "Waiting for signs. Pipe jacking should be accompanied by a factory certificate, which contains relevant information about the manufacturer, implementation standards, production license marks and numbers, and physical and mechanical properties test reports; and there should also be a quality inspection report issued by a third-party statutory inspection unit. .