| 摘要 |
A method for the stabilization of slopes and/or terrain which are unstable or subject to landslides, by inserting drainage devices. A vertical shaft with a concrete lining or a microtunnel ( 1 ) is constructed and an automatic drilling unit ( 8 ) is position therein. The drilling unit has at least one drilling head ( 6 ), a magazine of rods ( 11 ), and robotic devices able to pick up the rods ( 12 ) from the magazine and take them to the drilling head, the rods ( 12 ) being constituted by the drainage pipes ( 5 ); the head is controlled to perform drilling operations, with simultaneous laying of the drainage pipe. The drainage pipes are constituted by a tubular steel element, whose walls contain holes which house a microfiltration valve filled with water-soluble material to prevent the passages from becoming obstructed during drilling; when the pipe has been laid, the water-soluble material dissolves, thus cleaning the passages.
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