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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.
The beam and base method of underpinning is a more technically advanced adaptation of traditional mass concrete underpinning. A reinforced concrete beam is constructed below, above or in replacement of the existing footing. The beam then transfers the load of the building to mass concrete bases, which are constructed at designed strategic ...
A combined footing is typically utilized when the spacing of the columns is too restricted such that if isolated footing were used, they would overlap one another. Also, when property lines make isolated footings eccentrically loaded, combined footings are preferred. When the load among the columns is equal, the combined footing may be rectangular.
The arm provides the up-and-down and closer-and-further (or digging movement) movements. Arms typically consist of a boom, stick and bucket with three joints between them and the house. The principle of a hydraulic excavator. The boom attaches to the house and provides the up-and-down movement. It can be one of several different configurations:
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.
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Construction equipment being used to dig up rocky ground. Although humans are capable of digging in sand and soil using their bare hands, digging is often more easily accomplished with tools. The most basic tool for digging is the shovel. [1] In neolithic times and earlier, a large animal's scapula (shoulder blade) was often used as a crude ...
In 1965, he took over another bar, but kept his digging as a hobby. Altmann would mainly use a pickaxe for digging and occasionally explosives, after passing an explosives handling examination at the fire department. [7] He dug a second tunnel branching off from the first one, using a tunnel drilling machine he designed and built himself. [7]