Adapting well for connecting underground cable tunnel and cable trench

Abstract

The invention discloses an adapting well for connecting an underground cable tunnel and a cable trench. A well chamber of the adapting well comprises a first well chamber directly communicated with the cable trench and a second well chamber directly communicated with the cable tunnel, the first well chamber and the second well chamber are communicated through a cable protection pipe, and manholes are formed in the top of the first well chamber and the top of the second well chamber; the second well chamber is arranged on a top plate of the cable tunnel, the second well chamber takes the top plate as a buffer platform, the buffer platform is provided with an inspection entrance for entering the cable tunnel and a cable hole for cable switching, and the inspection entrance and the cable hole are both communicated with the cable tunnel and the second well chamber; a cable is laid into the cable trench from the cable tunnel through the cable hole, the second well chamber, the cable protection pipe and the first well chamber, so that the connection problem of the underground tunnel and the cable trench is solved, and meanwhile, the requirements for ventilation, fire prevention and inspection maintenance are met, and full-underground design is more scientific, reasonable and economical in general drawing arrangement and pipeline trend planning.

Description

technical field [0001] The invention relates to the technical field of power supply and distribution lines, in particular to a transfer shaft connecting an underground cable tunnel and a cable trench. Background technique [0002] In the design of industrial power supply pipe network, a tree structure is generally adopted. The cable tunnel is equivalent to a "trunk", which is mainly used for laying main power supply lines and can accommodate a large number of cables. Since personnel can enter the interior for construction and inspection, it is generally more difficult to lay Deep; the cable trench is equivalent to a "tree branch", which is mainly used in each process area and can accommodate a small number of cables. Since personnel cannot enter, the buried depth is relatively shallow. If the two are connected by direct connection, it is not easy to handle due to the difference in elevation, and the space at the connection point is small, which is not conducive to the constr...

AI Technical Summary

Problems solved by technology

If the two are connected by direct connection, it is not easy to handle due to the height difference in the elevation, and the space at the connection point is small, there are technical problems that are not conducive to cable laying construction, inconvenient or even impossible to conduct inspections

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