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Improvements in Constructing or Building Piers, Walls and the like, and in Sinking Shafts and the like, in Soft Stratum.
Improvements in Constructing or Building Piers, Walls and the like, and in Sinking Shafts and the like, in Soft Stratum.
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机译：软地层中墩，墙等的构造或建造以及下沉井等的改进。
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4625. Wilson, J. March 5. Wells and shafts.-Relates to the construction or building of piers, walls, and the like, and to the sinking of shafts and the like, in soft strata. The structure is simultaneously built and sunk into the stratum, and in the first instance the structure is hollow and erected upon a frame fashioned to cut into the stratum as shown in Figs. 1 and 2. The frame A is provided with the mouth a having the cutting-edge a1 Concrete, masonry, or the like is built upon the ledge a3, and the stratum displaced by the sinking of the structure is removed by the suction pipe B or by other suitable means. The pipes C with their branches c are connected to service pipes for liquid or gas under pressure, and aid in loosening the material to be removed. The interior of the column at a convenient point is bridged or domed over to prevent a sudden descent, for instance, in a quicksand. The built-up structure is modified to suit the particular purpose for which the structure is designed.
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