Starting from the initial model, it screens with principles to increase the complexity of the medium model until the best model is finally produced.

它从初始模型出发，按一定法则经不断的筛选，使中间模型的复杂度不断增加，直至得到最优复杂度模型。

Based on the concept of geo-binary medium model, a strength criterion for structured soils was proposed.

基于岩土二元介质模型思想，本文建议了一个适用于结构性土的强度准则。

Based on the concept of geo - binary medium model, a strength criterion for structured soils was proposed.

基于岩土二元介质模型思想, 本文建议了一个适用于结构性土的强度准则.

Based on stochastic medium model, The formulas have been derived for predicting ground surface movement and deformation due to near-surface tunnel excavation.

本文应用随机介质模型，导出近地表表土及风化层中开挖圆形隧道引起地表移动及变形的有关预计公式。