separation displacement

The Duncan-Chang E-B model is used to simulate the non-linear mechanical behavior of soil. With the separation of hydrostatic stress and stress deviator, a partial derivative formulation about displacement and parameter is derived in finite element evaluation.

以能较好模拟土体非线性力学行为的Duncan-Chang E-B模型为基础，通过分解应力球量与应力偏量，导出一个在有限元计算中，位移对参数偏导数的数值计算公式。

The pre-tensioned bolts increase the joints pressure which is the mechanics of strengthening the joints roof. Thereby the joints sliding distance, the roof separation value and the roadway displacement is reduced.

预应力锚杆对层状顶板的加固机理是增加层间正压力，从而降低节理面之间的滑动位移，控制顶板离层量，降低巷道位移。

Rare earth separation with NTA by high pressure ion-exchange displacement chromatography& ⅰ. boundary between the steady state zones

用NTA为螯合剂的高压离子交换排代色层法分离稀土的研究&Ⅰ.稳定区段的界面

By axial surface, coronal section, sagittal place and 3D bone reconstruction analysis, CT picture can accurately display the fracture line, the separation and displacement of fracture and the damage state of peripheral soft tissue also can be acquired.

通过轴位、冠状位、矢状位以及3D骨重建分析，能清晰、准确地显示骨折线，并对骨折的分离、移位及周围软组织的损伤情况均可准确地了解。