Assembly-type underground cable trench based on comprehensive wiring of city

Abstract

The invention discloses an assembly-type underground cable trench based on comprehensive wiring of a city. The assembly-type underground cable trench is characterized in that according to the characteristics of the starting part, the straight part, the bent part, the narrowing part and the ending part of the underground cable trench, a cable inlet trench (101), a straight cable trench (102), a bent cable trench (103), a cable outlet trench (104), a straight narrowing cable trench (105), a bent narrowing cable trench (106) and a cable safety maintenance viewing port (107), all of which are respectively formed in an assembled mode, are installed at corresponding positions and are combined to form a closed underground cable trench transportation cable system. The assembly-type underground cable trench is the totally-closed system, has good compression resistance, impact resistance and water resistance to the outside, can be used for a long time at the temperature ranging from -50 DEG C to 100 DEG C without being damaged, and has good moisture resistance, acid and alkali resistance and corrosion resistance to the inside. Cables can be transported in a shielded and isolated mode.

Description

technical field [0001] The invention relates to a cable trench, in particular to an assembleable underground cable trench based on urban integrated wiring, and belongs to the technical field of urban construction. Background technique [0002] One of the symbols of modern cities in the world is that all the cables go into the ground, which is also the development trend of urbanization and urbanization in our country. Informatization construction has become a national strategic plan, and information transmission facilities have become national infrastructure. Cables entering the ground can not only ensure the completion of information transmission, but also have the advantages of safety and convenience. [0003] According to the relevant national standards, it is required that the cables in the city should be transported through underground cable trenches, so as to avoid the potential safety hazards of overhead transmission of poles. At present, the main method for power lin...

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Problems solved by technology

[0004] The power cables in underground trenches belong to the national infrastructure, and their insulation, moisture-proof, waterproof, service life, and line maintenance all have high safety requirements. Through the field investigation of many underground cable trenches that have been put into use, there are generally If the walls are wet or the cement falls off, there is still water at the bottom of some trenches, or even the bridge frame is damaged and the cables fall into the water. In addition, the cable trench is also a habitat for rats and snakes. This kind of project is obviously out of reach. National Safety Standards

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