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Dynamic compaction is a ground improvement technique used to increase the density of loose granular soils, waste, and fills by repeatedly dropping a heavy weight from a significant height (10–40 meters) onto the ground surface.

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Massimo

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29,685 просмотров • 3 месяцев назад •via X (Twitter)

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This could come in handy. The "Ranger Roll" is an emergency, tactical technique used to lift an unconscious, injured, or "dead-weight" casualty off the ground and onto a rescuer's back for transport to safety. It is designed to be a rapid, efficient method, often demonstrated by former US Army Rangers to enable a single person to move a casualty who may be heavier than them.
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This could come in handy. The "Ranger Roll" is an emergency, tactical technique used to lift an unconscious, injured, or "dead-weight" casualty off the ground and onto a rescuer's back for transport to safety. It is designed to be a rapid, efficient method, often demonstrated by former US Army Rangers to enable a single person to move a casualty who may be heavier than them.

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The Soviet Lun-class ekranoplan, a ground effect vehicle designed to destroy enemy ships by flying just meters above the water surface at speeds up to 500 km/h using enhanced lift from proximity to the sea.
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The Soviet Lun-class ekranoplan, a ground effect vehicle designed to destroy enemy ships by flying just meters above the water surface at speeds up to 500 km/h using enhanced lift from proximity to the sea.

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The technique is called solid injection for raising ground elevation, and it's not new in theory. Engineers have used compensation grouting to lift entire buildings, including Big Ben, by pumping material underneath them. The same physics that lifts a clock tower can lift a neighborhood. Terranova just roboticized it. The robot measures the surface to 2 millimeters and switches injection wells in real time as the ground shifts.
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The technique is called solid injection for raising ground elevation, and it's not new in theory. Engineers have used compensation grouting to lift entire buildings, including Big Ben, by pumping material underneath them. The same physics that lifts a clock tower can lift a neighborhood. Terranova just roboticized it. The robot measures the surface to 2 millimeters and switches injection wells in real time as the ground shifts.

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It’s like someone stood at one end of the mall with a laser and measured the height of the ground, but didn’t take into account that the ground is uneven.
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It’s like someone stood at one end of the mall with a laser and measured the height of the ground, but didn’t take into account that the ground is uneven.

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