| 摘要 |
The invention relates to an operational scheme for a method of stabilising ground round a hollow member in the form of a pipe (2) is shown, the interior (3) of the member essentially defining non-human entry confined space. Radar is used to detect a void in ground surrounding the pipe, which is drilled to provide a passage from the interior of the pipe (2), and then grout is passed from a robot in the pipe out into the void, to fill it, and hence stabilize the ground in which the pipe is buried.
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