METHOD FOR STABILIZATION OF LOESS SUBSIDING GROUND Russian patent published in 1998 - IPC

FIELD: construction engineering. SUBSTANCE: this can be used for stabilizing properties of loess and other subsiding grounds by eliminating subsidence with possible moistening by injecting special solutions into ground. According to method, fractures are made in ground by way of hydraulic fracturing through creation of closed system "receiver-working vessel" and subsequent establishing initial pressure in it and instantaneous transmitting this pressure to injectors at simultaneous introduction into ground at given velocity of stabilizing suspension or hardening solution. After that, ground mass is subjected to pressing by applying pressure of value close to initial. Application of aforesaid method simplifies process of injecting suspension or hardening solution due to establishing pressure for hydraulic fracturing in ground mass in process of injecting. In addition, uncontrolled leakage of suspension and solution is reduced, and quality of ground compaction is improved. EFFECT: higher efficiency. 2 dwg