three-dimensional stress state

As a very effective tool to explore the soil stress-strain relationship, true triaxial apparatus is a very important test equipment to study the soil under the three-dimensional stress state.

真三轴仪是研究土体在三维应力状态下的重要测试仪器，为探寻土体的应力应变关系十分有效的工具。

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A Study on Stress Around a Drift Excavated in Three-Dimensional Stress State Ground by Boundary Element Method

巷道围岩应力分布影响因素的研究巷道围岩三维应力的边界元分析

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Based on the principle of generalized effective stress, the constitutive equations for unsaturated soils can be established using the thermomechanical method. The choice of internal state variables is important to build the relationship among the three phases.

根据广义有效应力原理选择应力变量，并选择适当的内变量来考虑非饱和土三相之间的联系，建立了固液气三相耦合的非饱和土本构模型框架。

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Three compression stress state is the main stress state for three-roll planetary rolling process, which m.

得出在三辊行星轧制过程中起到主要作用的是三向压应力状态, 有利于坯料的大变形和提高轧制管材性能.

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The helix angle is great generally that is close to about 45 °, this makes the cross helical gear be under to three-dimensional stress state after it is received strength;

交错轴斜齿轮的螺旋角一般较大，接近45°左右，这使得交错轴斜齿轮受力后处于三维应力状态；

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Study of bearing capacity of foundations considering both effects of intermediate principal stress and three-dimensional stress state

考虑中主应力及三向应力状态影响的地基承载力分析

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Under the condition of-2~ ( 1/ 2) three-dimensional stress state on plasticity can be equivalent to a plane stress state. As the condition mention above is satisfied the plastic stress can be determined with single-value on the plastic strain.

文中提出了三向应力状态对塑性的影响可以等效为平面应力状态的条件为：-2~（1/2）

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Sandwiched rock between twin closely spaced tunnels is in complicated and three-dimensional stress state.

小净距隧道的中间夹岩处于复杂的三维受力状态。

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The No. 0 block of concrete continuous girder is in complicated stress state under the action of big bearing support counterforce and prestressed stress in three dimensions.

混凝土连续梁0块在三向预应力及大吨位支座反力作用下处于复杂的应力状态；

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Therefore, ( ABOw+ BPOp)/ Al should be deformed by hot extrusion with three-dimensional stress state.

所以，（ABOw+BPOp）/Al复合材料热变形更适合于存在三向应力状态的热挤压变形。

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Firstly, this paper does theoretical research when tension acts on the bolt tip, and derives the distribution law of the bolt shear stress and axial force, and defines three different bolt stress state.

首先，本文对锚杆端部受拉力时做了理论研究，推导出锚杆剪应力与轴力的分布规律，并定义了锚杆三种不同的受力状态。

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The method for determining the effective stress parameters is presented according to the new effective stress expression of unsaturated soil under three-dimensional stress state.

依据非饱和土有效应力新表达式，提出了三维应力状态下有效应力参数的确定方法；

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Superposition of three kinds of plane stress state and the combined tectonic system

三种平面应力状态叠加及联合构造体系

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Shear properties of rock anisotropic discontinuity under three-dimensional stress state

三维应力状态下岩石各向异性结构面自由剪胀的力学特性

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Compared with the condition of the two-dimensional stress state, the influence of all the parameters to the results of the formulas of the critical edge load and critical load in the condition of the three-dimensional stress state is analyzed in the end of this paper.

并通过实际的算例详细的分析了临塑荷载、临界荷载中各个参数在二维应力状态下和三维应力状态下对计算结果进行了影响程度分析。

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