Method for preventing earthquake liquefaction instability of ultrafine tailing heaping upstream method tailing dam

The invention discloses a method for preventing earthquake liquefaction instability of an ultrafine tailing heaping upstream method tailing dam. An initial dam (5) and a dam abutment flood stop ditch (1) are built according to a design scheme; embedment depths of a first earthquake liquefaction resi...

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Bibliographic Details
Main Authors YU KELIN, ZHANG CHENG, YUE TAO, MAO QUANSHENG, ZHANG LEI, WU PENGCHENG, TAO WEI, WANG YUBO, ZHANG QIANG, CAO JIGANG, FANG DINGWANG, YANG YONGSHENG, TANG KAI
Format Patent
LanguageChinese
English
Published 24.05.2017
Subjects
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
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Summary:The invention discloses a method for preventing earthquake liquefaction instability of an ultrafine tailing heaping upstream method tailing dam. An initial dam (5) and a dam abutment flood stop ditch (1) are built according to a design scheme; embedment depths of a first earthquake liquefaction resisting medium-coarse sand drainage/seepage layer and a second earthquake liquefaction resisting medium-coarse sand drainage/seepage layer are determined according to the region seismic fortification intensity; the first and second earthquake liquefaction resisting medium-coarse sand drainage/seepage layers both consist of medium-coarse sand drainage/seepage layers (11), and a row of groove hole drainage/seepage pipes (3) paved in the medium-coarse sand drainage/seepage layers (11); the groove hole drainage/seepage pipes (3) are communicated with drainage communicating pipes (2) through three-way pipes (12); and the outer ends of the drainage communicating pipes (2) are connected with the dam abutment flood stop ditc
Bibliography:Application Number: CN2017178958