Fidelman, Wolffe & Waldron
Method of constructing a wall for supporting earth
 This invention relates to a method of constructing a continuous wall for supporting earth by continuously setting a number of steel sheet piles, in which a hole is bored with a screw auger, a sheet pile is sunk into the said hole with the boring, a joint of the said sheet pile is engaged with a corresponding joint of the following sheet pile, the said following sheet pile is sunk with the boring of a hole for the said following sheet pile with the said screw auger, and these operations are repeated; and further into the said holes concrete is placed or concrete piles are sunk as required. 
Nikkai Giken Co., Ltd. Nippon Concrete Industries Co. Ltd.
E E
E02D E02D
inventional inventional
Yoshikiyo Shigeru
Fukushima Watanabe