Construction method of outdoor buried pipe capable of resisting soil settlement

Abstract

The invention discloses a construction method of an outdoor buried pipe capable of resisting soil settlement. The construction method comprises the steps that the elevation of the outdoor buried pipe and the height of a cast iron telescopic pipe fitting are marked; a first cast iron pipe is connected with a first duckbilled elbow and a waterproof sleeve and then is connected with a second duckbilled elbow and a first flexible pipe fitting connector; the first flexible pipe fitting connector is connected with the cast iron telescopic pipe fitting and is provided with a limiting device; the other end of the cast iron telescopic pipe fitting is connected with a second flexible pipe fitting connector; the second flexible pipe fitting connector is connected with a third duckbilled elbow; the other end of the third duckbilled elbow is connected with a third flexible pipe fitting connector; the third flexible pipe fitting connector is connected with a second cast iron pipe; the other end of the second cast iron pipe is connected with a fourth flexible pipe fitting connector; and the fourth flexible pipe fitting connector is connected with a third cast iron pipe, and the other end of the third cast iron pipe is connected into a rain waste water well. According to the construction method, the soil settlement resistance of the outdoor buried cast iron pipe can be greatly improved, and the problem of pipe breakage caused by soil settlement is solved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method of an outdoor buried pipe resistant to soil settlement. Background technique [0002] At present, due to the increasing number of large public buildings and more and more energy supply systems, the water supply and drainage system pipes of large public buildings are very rich, and the rainwater wastewater system mostly chooses durable cast iron pipes, which are not only cheap but also corrosion-resistant Strong, after entering the international market in the 1960s, it has been widely recognized and used for a long time in the industry. However, the disadvantages of cast iron pipes are also obvious, such as brittle quality and heavy weight. [0003] The construction principle diagram of the traditional outdoor buried pipe is as follows figure 1 As shown, after reaching the ground along the indoor and outdoor standpipes, the waterproof casing g...

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Problems solved by technology

[0004] Although there are links such as tamping and sand cushioning in the construction process, in actual construction, due to the fact that the construction period is easy to be ignored and the tamping is not in place, the soil subsidence in the later period of one or two years is still very serious, and it is easy to cause cast iron pipes buried in the ground. directly crushed, such as figure 2 As shown, it has to be reworked and repaired, wasting a lot of labor and materials

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