Environmental Engineering Reference
In-Depth Information
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FIGURE 3.73
Simplified section of the dilatometer probe IF 096. (Courtesy of
Interfels.)
1 — Reinforced rubber sleeve;
2 — Displacement transducers;
3 — Pressure line;
4 — Electric cable plug;
5 — Protection tube with; connection for string of setting rods;
6 — Hook for drilling rig rope;
7 — Connection.
relatively small area. Dynamic tests apply short-duration pulses at very low stress levels.
Laboratory tests are performed on relatively intact specimens, seldom providing a repre-
sentative model except for high-quality rock approaching an elastic material. Various
investigators have studied relationships between rock quality and moduli as determined
by various methods and correlative procedures in the attempt to provide bases for estab-
lishing design moduli.
