maximum principal stress meaning in English
最大主应力
Examples
- Maximum principal stress theory
最大枝力理论 - In the middle of tunnel , maximum principal stress at horizontal is bigger than that at vertical , the magnitude is 17 ~ 23mpa , which formed the high stress site
隧道中部大埋深地段，最大水平主应力一般都大于垂直主应力。量级在17 23mpa左右，属于高应力地段。 - ( 6 ) the principal stress direction arised deflexion obviously after excavation , the maximum principal stress paralled to opening , minimum principal stress vertical to sidewall or vault
( 6 )数值模拟研究表明，隧道开挖后，主应力方向发生明显偏转，最大主应力与开挖临空面平行，最小主应力近于垂直。 - Taking protective measures can obviously reduce the face slab ' s surface temperature drop - out range and the maximum principal stress amplification caused by temperature sudden drop , and the stronger protective measures are , the more obvious reduced effect is
采取保护措施，可以明显削减气温骤降所产生的面板降温幅度及最大主应力增幅，保护措施越强其削减效果越明显。 - Research shows that four factors have great influence on the formation of complex rock mass . first , rock mass subjected six times of tectonic movement during long period of geo - history , each tectonic movement produced fractures and associated joints corresponding to the orientation of maximum principal stress and deteriorated the properties of fractures formed at former period ( s ) . second , down - cutting of langcangjiang river produced unloading fractures
采用了四种岩体质量分级评价方案对研究区岩体质量进行了研究，这四种方案包括：工程岩体分级标准( gb50218 - 94 ) 、水利水电围岩工程地质分类( gb50267 ? 99 ) 、岩体rmr分类( bieniawski , 1973 ) 、岩体质量指数z分级(小湾, 1995 ) 。