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Browsing by Subject "loess gully region"

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    Item type:Article, Access status: Open Access ,
    Preliminary studies on deformation characteristics and prediction of surface movement in loess gully region
    (Wydawnictwa AGH, 2010) Yu, Xueyi; Zhang, Ping; ShiHi, Wen-gang
    Based on lots of surface movement and deformation observation data in loess gully region mine, the characters of surface movement and deformation caused by running activity are studied. Surface subsidence was up to 97% of the total subsidence in active period. Surface was moving with great crack and discontinuous deformation failure. The surface deformation developed rapidly, displacement angle is large, subsidence factor and horizontal movement factor is high. The results of surveying show that collapsible loess with the gully terrain lead to surface cracks which are quickly developed in loess. Crack failure are further intensified by mountain body slip induced by weight force. Meanwhile, subsidence factor and horizontal movement factor is gradually higher. Finally, the prediction model of horizontal strain and horizontal deformation were preliminarily established according to analysis results.