INSTALLATION OF SAND DRAINS

1,242,951. Boring earth. RAYMOND INTERNATIONAL Inc. 17 Jan., 1969 [6 Feb., 1968], No. 2886/69. Heading E1F. A sand drain is formed by drilling a hole in the ground, introducing fluid into the hole, causing the fluid to move upwardly in the hole to wash spoil out from the top of the hole, and filling...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HENRY ALFRED NELSON HOLLAND, CHARLES RAYMOND HOUK, GEORGE JOSEPH GENDRON, AUGUSTUS PEARCE GODLEY, FRANCIS MARCUS FULLER
Format:	Patent
Sprache:	eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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