AQUIFER CUT-OFF METHOD FOR EXISTING WELL

PROBLEM TO BE SOLVED: To surely and efficiently prevent the incursion of ground water in an optional unnecessary aquifer of the existing well into the well. SOLUTION: A aquifer cut-off method of the existing well excavates a plurality of guide holes H2 up to a position near to a boundary B2 between...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ONISHI NOBORU
Format:	Patent
Sprache:	eng
Schlagworte:	FIXED CONSTRUCTIONS INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, ORDISTRIBUTING WATER SEWERAGE WATER SUPPLY
Online-Zugang:	Volltext bestellen
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