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在水工建筑物中,地基常由几种不同性能的岩石或粘土等组成,与上层建筑物材料——混凝土的性能差异很大。为了较准确模拟原型各种条件,以提高光弹试验的成果质量,从而提出了改变光弹模型材料弹模的要求。解放以来,国内各科研单位在这方面做了许多工作,得到一些成果、解决了一些工程实际问题。但是,改变光弹材料弹模的工作,迄今为止,只局限于以环氧为基础的范畴,对其他聚合物的性能研究得很少,因而使这方面的工作进展不快。目前,以环氧为基础改变环氧树脂材料弹模的方法。综合起来可分为三种类型:一是改变增塑剂的用量;二是加入高聚物;三是改变固化剂用量。这三种方法都可以达
In hydraulic structures, the foundation is often composed of several different properties of rock or clay, and the superstructure material - concrete performance varies widely. In order to more accurately simulate various conditions of the prototype, in order to improve the quality of the results of the photoelastic test, the requirements for changing the material elasticity of the photoelastic model material are proposed. Since the liberation, many domestic research institutes have done a great deal of work in this regard, obtained some achievements and solved some practical engineering problems. However, the work of changing the mold of photoelastic materials has hitherto been limited to the epoxy-based category, and the performance of other polymers has been studied very little, thus making the work in this area very slow. Currently, epoxy-based epoxy resin material to change the mold method. Taken together can be divided into three types: one is to change the amount of plasticizer; two is to join the polymer; three is to change the amount of curing agent. These three methods are reachable