METHOD OF GROUND ANCHOR INSTALLATION AND ASSOCIATED DEVICE Russian patent published in 2009 - IPC E02D5/80 

FIELD: construction.

SUBSTANCE: invention relates to construction technologies and, particularly, to pit edges and earth retaining structures holding in soft and loose water-saturated soils. Ground anchoring includes well making in ground by repeated deepening of the actuator and well filling with fixing hardening mud. The hardening mud is pressed into the ground and anchor retainer is formed behind collapsing area in the borehole bottom. The anchor retainer is formed by the ground compacting procedure due to introduction of reinforcing rod with the fixed thrust device being in the shape of nozzle. The nozzle diameter is less than well diameter or ring diameter. The rod is pulled and well is cemented. Before reinforcing rod is introduced into the well, it is fastened directly to the end surface of thrust device resting against borehole bottom or to its end near the bottom hole. The inner space of thrust device is filled with hardening compound or arc-shaped metal rods or strips are placed inside it. Then, the device is filled with hardening compound. As soon as the reinforcing rod is introduced into the well and thrust device is moved to the bottom hole, the latter is distorted by the repeated external effects by means of impact actuator. In addition, the inner space of the device is filled with dry hardening mixture each time before the actuator impacts. The dry hardening mixture is represented with leak-tight packs with volumes equal to the inner space of device before it is distorted.

EFFECT: reduction of labour effort for anchor installation and increase of anchor bearing capacity.

3 cl, 2 dwg