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为了理解一些粮仓实验报道中转向比明显大于工程规范中Jaky公式估算值的现象,计算了平面粮仓应力饱和区域的非线性弹性通解.结果表明,这个通解的确可以给出实验观测到的大转向比应力,但同时也偏离Janssen假设.由于边界条件会因塑性而失去完备性,粮仓转向比将允许在一定范围内取值,不一定总是满足Jaky公式.这意味着,弹性理论能够描述与制备历史有关的颗粒物质静力学问题.
In order to understand some phenomena that the steering ratio in grain silo experiment is obviously larger than that of the Jaky formula in the engineering code, the nonlinear elastic general solution of the stress field in the plane silo is calculated. The results show that this general solution can indeed give experimentally observed large steering ratio Stress, but at the same time deviates from the Janssen assumption. Since the boundary conditions will lose their plasticity due to plasticity, the granary turning ratio will allow for a range of values, not always satisfying the Jaky formula. This means that the elastic theory can describe and prepare History-related particle matter statics.