Installation of pipes, e.g. cable conduit, in inaccessible underground cavity, in which cavity wall topography is determined, cavity is cleaned and pipe supports inserted and pipe fitted to support(s) by pressing against cavity wall

摘要

Method having a first phase with following stages: (a) examine cavity internal wall t determine its topography; determine necessary cleaning operations for inserting support parts; clean internal wall by pressurized fluid jet; if necessary use a tool to clean the wall. Pipe installation method including at least the following stages: (a) cavity wall cleaning; fitting pipe supports; fixing pipe by pressing it against cavity wall. Also includes the three following successive phases: (a) first phase including the cleaning stage in which the internal topography of the cavity wall is determined; second phase including a stage in which the positions for the pipe supports, on the cavity wall are determined; and a stage for fixing the supports. The supports include wall fixings and pipe support ; a third guide phase for placing the pipe in the supports including a contact stage with pipe and support by pressing against cavity wall.