Environmental Engineering Reference
In-Depth Information
FIGURE 2.84
Massive, hard granite gneiss at the mouth of a water tunnel. Note diorite dike and seepage from joints. Core
recovery in such materials should be high.
2.4.6
Sample and Core Treatment
Upon Retrieval
The sampler is dismantled carefully to avoid shocks and blows (in soils), obvious cut-
tings are removed, and the recovery is recorded (RQD is also recorded in rock masses).
