METHOD FOR DETERMINING SHEETING PARAMETERS FOR ROCK SOLIDS IN MASSIF AND DEVICE FOR REALIZATION OF SAID METHOD Russian patent published in 2005 - IPC

FIELD: mining industry.

SUBSTANCE: method includes drilling wells and mounting electrodes with conductors therein, which are connected to recording equipment. Signal lines are formed by filling wells with hardening mass, which after hardening forms fragile electric-conductive rods, rigidly engaged with well walls. Change of electric resistance between electrodes is measured in time, moments of tears of signal lines are recorded and parameters of rock solids sheeting are determined. Fragile electric-conductive rods can be formed in such a way, that their specific resistance depended on pressure. As hardening mass a mixture of graphic powder, cement and water can be used. Between fragile electric-conductive rods and wells walls a layer of fragile dielectric material can be previously formed. Device for method realization includes signal line in form of fragile and electric-conductive rod. Inside the rod a wire is placed, on which electrodes are mounted being in contact with rod and connected by conductors to recording equipment. Specific electric resistance of rod can depend on pressure. On surface of rod a layer of fragile dielectric material can be applied.

EFFECT: higher efficiency.

2 cl, 1 dwg