【摘要】 本文通过实验研究和理论分析探讨了变弹模光弹模型层面温度约束应力的产生机理及其发展过程,并且反复用实验验证了约束应力条纹图的稳定性即约束应力的不变性,从而提出了消除其影响的“单一模型法”,并给出了该方法条纹参数叠加形式的表达式,它对消除岩土工程变弹模光弹模拟中的约束应力影响、提高实验精度具有重要意义。更多还原

【Abstract】 The producing mechanism and developing law of the temperature restraint stresses on the layer-face of photoelastic model with variable elastic modulus are investigated with experimental studies and theoretical analysis, and the stability of the fringe figure of the restraint stresses or the fixedness of the restraint is verified repeatedly with the experiment. Thus the single model method of eliminating the influence is put forward, and the formula with superposing of fringe parameters of the method is given. The single model method is of great importance to eliminat the influence of the restraint stresses on photoelastic modelling with variable elastic modulus for soil and rock engineering and improving the experiment accurcy.更多还原