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  2. Earth auger - Wikipedia

    en.wikipedia.org/wiki/Earth_Auger

    A post-hole auger. An earth auger, earth drill, or post-hole auger is a drilling tool used for making holes in the ground. [1] It typically consists of a rotating vertical metal rod or pipe with one or more blades attached at the lower end, that cut or scrape the soil.

  3. Digging bar - Wikipedia

    en.wikipedia.org/wiki/Digging_bar

    Using digging bars to move rocks A girl and a man dig a hole with a heavy digging bar to plant a tree. Common uses of digging bars include breaking up clay, concrete, frozen ground, and other hard materials, moving or breaking up tree roots and obstacles, and making holes in the ground for fence posts.

  4. Post hole digger - Wikipedia

    en.wikipedia.org/wiki/Post_hole_digger

    A post hole clam-shell digger, also called post hole pincer or simply post hole digger, is a tool consisting of two articulated shovel-like blades, forming an incomplete hollow cylinder about a foot long and a few inches wide, with two long handles that can put the blades in an "open" (parallel) position or a "closed" (convergent) position.

  5. Borehole - Wikipedia

    en.wikipedia.org/wiki/Borehole

    Two borehole diggers manually digging a borehole. Especially in developing countries many boreholes are stull dug by hand. The digging begins with manual labor using basic tools such as shovels, picks, and crowbars. Workers excavate the soil layer by layer, often using a circular motion to create a well-shaped hole.

  6. Paleo Crossing site - Wikipedia

    en.wikipedia.org/wiki/Paleo_Crossing_site

    The Paleo Crossing site, one of the oldest sites in Ohio, had two [5] or three [6] post holes and refuse pits that contained charcoal. From radiocarbon dating, the site was used 10,980 BP ± 75 yearsBefore Present [ 5 ] or about 9,000 B.C. [ 6 ] The post holes and an area about 150 square feet indicate that there was a structure at the site.

  7. Geotechnical investigation - Wikipedia

    en.wikipedia.org/wiki/Geotechnical_investigation

    A USBR soil scientist advances a Giddings Probe direct push soil sampler.. Geotechnical investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil earthworks and foundations for proposed structures and for repair of distress to earthworks and structures caused by subsurface conditions; this type of investigation is ...