| 1. |
Geophysical investigations by the resistance method with several spacings of the instrument lines permit determining the continuity
of grout curtains and tracing the distribution of the grout body in plan and in section.
|
| 2. |
Repeated investigations conducted after the construction of the grout curtain permit obtaining information on its strength
in individual sections.
|
| 3. |
The investigations showed that a study of the change of resistivity of cement and sand-cement mixtures as a function of their
aggregate state and gain in strength in time is a promising method of determining the strength of grout curtains.
|
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 8, pp. 10–12, August, 1969.