METHOD FOR DETERMINING STRENGTH CHARACTERISTICS OF OBJECTS Russian patent published in 1999 - IPC

FIELD: construction engineering. SUBSTANCE: this relates to engineering investigations of structures and engineering-geological studies and can be used in planning territories for construction and existing built-up areas, in observation of defects in medium and in assessing qualities of load-bearing structures in condition of potential danger of occurring inherent defects such as loss of stability of sides of excavations, walls of structures, etc. According to method, separated and contoured around are areas of loosened medium with fragments of defective fissures in surface, determined is geometry of areas with visible occurrence of defective fissures in surface. Then, delivered into inlet slot is gas-mechanical mixture supplied from stationary source. Installed at places of free outflow of gas-mechanical mixture from medium are gas receivers. Concentration of outflowing mixture is determined. After that, receiver of dynamic effect is installed below defective fissure in base of separated object and shaking is performed such as seismically safe explosion and after attenuation of oscillations of object repeated measurements of concentration of mixture are undertaken. According to results of measurements, determined is dependence of objects on supporting medium and stability in state of objects. Realization of aforesaid method requires low expenses and affords reliable results. EFFECT: higher efficiency.