FIELD: building, particularly pipeline laying, pit construction, berth erection and so on.
SUBSTANCE: ground anchor comprises shaft, support blades installed around the shaft, head and explosive charge provided with initiating unit. The explosive charge with initiating unit is arranged between the shaft and the blades and is formed of explosive material having detonation rate Dd obeying the following inequality: Dd≤1.57·C0, where C0 - acoustic speed in shaft material.
EFFECT: increased load-bearing capacity and provision of optimal size and weight.
5 cl, 6 dwg
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| DEVICE TO PRODUCE DIAMONDS | 2012 |
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