principle stress meaning in English
主应力
Examples
- Results : with the loss of the alveolar height , the maximum equivalent stress and the principle stress of the upper central incisor periodontium increased
结果：随着牙槽骨高度的降低，上中切牙牙周膜最大等效应力和主应力逐渐增大。 - The original orientation ( i . e . the mol with respect to the geographical north ) of the core in the formation can be obtained by palaeomagnetic orientation tests . the two results are combined to define the direction of the maximum principle stress of the well or field
该方法根据差应变分析( dsa )实验确定地应力相对于岩心标志线的方向，利用古地磁方法确定岩心标志线相对于现代地理北极的方位，两者结合确定地应力方向。 - ( 5 ) conclusion was obtained by the analyzing and studying the mechanics environment of the rock mass and the landslide on right bank : according to the analysis , the present direction of the maximal principle stress was consistent with the present tectonic stress field , the value of the principle stress increased or reduced in special place , and there was tensile stress region at the 2000m or above it on the left bank , the accumulate and adjustment was very limited in 200 years , the calculated result of the landslide indicated that the landslide on the right bank was stable under the various conditions
( 5 )坝址区河谷岩体力学环境及右岸古滑坡体的稳定问题分析得出：河谷岩体应力场的分析显示，河谷岩体中主应力的方向基本上与现今区域构造应力场的方向一致，在一些特殊地带岩体的主应力值有所降低或增高，特别是在左岸的2000m高程附近及以上，存在有明显张应力区。在未来200年流变计算时步范围内，河谷岩体应力的积累与调整较为有限。同时对滑坡体各种工况条件下的稳定性计算结果表明，右岸古滑坡体在各种工况条件下是处于稳定状态的。 - The surface of natural fracture ( crack ) is parallel to the orientation of maximum principal stress . the principle orientation of anisotropic permeability reservoirs agrees with the orientation of the maximum principle stress . many engineering problems ( e . g . bore - hole stability , casing deformation failure during drilling , reasonable arrangement of wells , the optimum design of hydraulic fracture and so on ) are influenced by the in - situ stress orientation
天然裂缝面和裂隙面与最大主应力方向平行；在各向异性低渗透率油田中主渗透率方向与最大水平主应力方向趋向一致：在钻井过程中井壁稳定性，套管变形和损坏，油田开发井网合理布置、水力压裂优化设计等都与地应力方向有关。 - The model can reflect the multi - sets feature of the rock masses in practice , consider the influence of the joint orientation and strength to the rock masses deformation feature , and simulate the simultaneous sliding , tension and close behaviors of the multi - sets jointed rock masses extending the joint surface , and reflect the plastic deformation induced the rotation of the principle stress axes . the result can be extended to fractured rock masses with arbitrary set joints
该模型能反映实际工程中岩体的成组节理特性，考虑节理产状和强度对岩体变形特性的影响，可用来模拟岩体中多组节理同时存在滑动、张开、闭合的行为，并能反应由于应力主轴旋转所产生的塑性变形的影响。