进一步发展平面应力相似模型

本文以我院矿压实验室近年一些模拟实验为例,论述了进一步发展平面应力模型的必要性和改善它的途径。由于岩体结构的复杂性,矿山压力的模拟必须作到与现场破坏相似,作者提出了“典型化模拟”和“原型化模拟”相结合的方法。成功应用平面模型的关键,是实验指导思想上的突破。在满足课题任务的前提下,模型还可大大简化。模拟是否可靠,应看能否得出符合客观规律的实验成果。

FURTHER DEVELOPING THE SIMILAR MODEL OF PLANE STRESS

Based on some model tests made in our strata pressure laboratory in recent years, the need for further developing the plane stress model and the improving method are illustrated in the paper. The model test should be similar to the laws of spot roof breaking behaviour because of the complexity of roof structures. A new method of combining typical model test with prototypical model test is put forward. The key to the successful application of the plane stress model lies in breaking through the guiding thought of test. The model can be also greatly simplified under satisfaction of subject task. The reliability of model test depends upon whether the test results agree with