METHOD FOR COAGULATING EARTH AND SAND AND MUD SHIELD METHOD USING THE SAME

PURPOSE:To carry a great amount of mud out of a drift and transfer it efficiency by injecting into earth and sand mud coagulation agents containing acrylic water soluble polymer having specific molecular weight, silty clay and water at a predetermined ratio so that they are kneaded and formed into a...

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Bibliographische Detailangaben
Hauptverfasser: MORIYA KAKUSHIGE, AOYAMA KIYOSHI
Format: Patent
Sprache:eng
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