FIELD: reinforcement and fixing of ground. SUBSTANCE: drive-in injector includes hollow body with outlet hole made in its lower part and tip made fast to it. Characteristic feature of injector lies in manufacture of tip in the form of spring with wedge angle of 120 degrees anchored in outlet hole of body. EFFECT: possibility of free exit of solution into ground thanks to sudden fall of resistance to outflow of solution from body through outlet hole. 2 dwg
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