Original document(11 pages) Authorized document(12 pages) 中文版
    The nature of the invention is that in the indicated tunnel section which will be block up, at the upstream of the half dammed wall made by known way, solid particle materials are piled up. Then the materials are blown to float in the stream by explosives. after the density of floating solid materials reach to the damming extent, a stream blockage will be formed at its expected position, then the blockage may be quickly intensified by casting.
Application Number
申请号		 85106979 Application Date
申请日		 1985.09.16
Title 名称 Method for damming water flow of natural and artificial tunnel
Publication Number
公开号		 1009951 Publication Date
公开日		 1987.04.01
Approval Pub. Date Granted Pub. Date
International Classification 分类号 E21D11/38
Applicant(s) Name
申请人		 Kozponti Banyaszati Fejlesztesi Intezet
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 CUI XIAOGUANG ZHANG YUANZHONG
More information 更  多  信  息


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