Application of trenchless drilling rig technology in power engineering construction

It covers a small area, does not occupy ground space, is not affected by road buildings, and does not need to erect towers and wires on the road, which is easy to supply power to the city and makes the city appearance neat and beautiful. Therefore, there are more and more cable projects now. The construction of conventional cable projects is to lay power pipelines by slotting, which needs to occupy the road during construction and hinder traffic; it is easy to damage the original pipeline during excavation and backfilling; the external transportation of muck causes leakage and dust; Uniform settlement, subsidence or protrusion of the road surface, bringing inconvenience to vehicles and pedestrians. In addition, due to the inconsistent application time for electricity use, it is often dug up today, filled in tomorrow, and "opened" the day after tomorrow, resulting in the "zipper phenomenon" on the road that citizens hate. Therefore, the conventional construction technology is less and less suitable for the needs of urban development. In this case, the advantages of trenchless technology are reflected. Trenchless technology refers to a new construction technology for laying, replacing or repairing various underground pipelines without trenching (grooving) on the ground by using various technical means of geotechnical drilling and excavation. The repair construction method is drilling and pipe laying and repairing. Compared with the traditional trenching construction method, the trenchless technology has the advantages of not affecting traffic, not damaging the environment, short construction period, and significant social benefits. It is especially suitable for areas where excavation cannot be implemented, such as downtown areas and highways , railways, buildings, rivers, crops and vegetation protection areas, etc., to lay, update or repair pipelines.

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