Tunnel wall support module Clause Samples

Tunnel wall support module. For the application method 1, the Polymer solution is applied directly to the drill, in order to get mixed as the drill is working. This method is very useful when drilling sand or another soft material. With this application method needs more liquid as the most part of the drilled material needs to be extracted. The first idea for wall support for Badger Project is using the retrieval cone used for compaction, installing a spraying ring around the robot immediately rear the drill.