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Application of Trenchless construction in electric power construction

Views:0     Author:Site Editor     Publish Time: 2020-09-09      Origin:Site

Application of Trenchless construction in electric power construction

With the rapid development of urban economy and the acceleration of urbanization, the number of power engineering construction projects is increasing. The use of power cables to transmit electric energy has a small footprint, does not occupy ground space, is not affected by road buildings, and does not need to erect poles 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 cabled projects. The construction of conventional cable engineering is to lay power pipelines with grooves, which need to occupy the road surface during construction, which hinders traffic; the original pipelines are easily damaged during excavation and backfill; the slag is transported out of the country to cause leakage and dust; Uniform settlement, subsidence or protrusion of the road surface, causing inconvenience to vehicles and pedestrians. Moreover, due to the inconsistency of the application time for electricity, it is often dug today, filled in tomorrow, and the day after tomorrow, it will be "crashed", resulting in the "zipper phenomenon" of the road that people hate. Therefore, conventional construction techniques are becoming less and less suitable for the needs of urban development.

   In recent years, the city has intensified its urban planning, construction, and management efforts, and new roads are not allowed to be "broken" within five years of their delivery. The new management measures tighten the approval authority, stipulating that projects with excavation time within 5 days and excavation length less than 100 meters shall be subject to centralized approval by the Municipal Gardens Bureau; those exceeding these deadlines shall be jointly reviewed by the Municipal Gardens Bureau and the Municipal Urban Management Office, which has a significant impact The excavation project has to be submitted to the municipal government for approval. For example, for the excavation of a cement concrete pavement, regardless of the actual width of the excavation, even if the excavation is only 30 cm wide, it is calculated based on the area of the entire slab, and the compensation is very large. 

   In this case, the advantages of trenchless technology are reflected. Trenchless technology refers to the use of various rock and soil drilling and digging techniques to lay, replace or repair various underground pipelines without trenches (grooves) on the ground. It is a new construction technology that changes the traditional trenching and pipe laying. The repair construction method is drilling and pipe laying and repair. Compared with the traditional trenching construction method, the trenchless technology has the advantages of no impact on traffic, no damage to the environment, short construction period, and significant social benefits. It is especially suitable for areas where excavation operations 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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