| 摘要 |
<p>Control of the quality of grout carried out for the purpose of sealing and/or strengthening of rock massif is performed by excavating to a mean depth of minimally 7.5 cm and maximally 50 cm followed by borehole survey in the area of excavation, consisting of measurement of magnetic susceptibility, cavernometry and resistance measurement by a method of diluting tagged liquids, and method of constant infusion of the strengthened massif after grouting. It is advantageous to perform borehole surveying before and after grouting, in order to compare the states before grouting and changes as a consequence of grouting. Equipment for the survey is composed of a set of at least three surface panels (3) and at least three measuring probes (4) for magnetic susceptibility, cavernometry and resistance measurement. The measurement equipment can be built into a terrain vehicle and it consists of winch components (1) with a special cable (2), at least three surface panels (3) and least of three measuring probes (4) registering various physical parameters of the bore environment; probes are connected to the cable terminals (2) by means of couplings (5) and connected to the surface panels (3).<IMAGE></p> |
