论文部分内容阅读
对辽东湾三道沟平整体做了系列抗压强度试验,获得了新的抗压强度经验公式并与渤海其它冰区的试验结果做了比较。分析说明,三道沟平整体的多层次晶体结构使抗压强度趋向各向同性,即σ_(cv)≈σ_c。历次试验建立的σ_c-V_b关系的经验公式具有局限性和不可比性。当冰的晶体结构由柱状晶试样变更成多层次多种晶试样时,σ_c增大,σ_(cv)则减小,最后趋向同量级。各种冰之间的σ_(cv)-σ_c关系在不同的温度下均可用线性函数描述。
A series of compressive strength tests were conducted on Sandaogouping of Liaodong Bay. The empirical formula of compressive strength was obtained and compared with the experimental results of other ice regions in the Bohai Sea. The analysis shows that the multi-level crystal structure of Sandaogou flat body makes the compressive strength tend to be isotropic, that is σ_ (cv) ≈σ_c. The empirical formulas of σ_c-V_b relationships established by previous experiments have limitations and incompatibility. When the crystal structure of ice changes from a columnar crystal sample to a multi-layer multi-crystal sample, σ_c increases and σ_ (cv) decreases, finally, it tends to the same order of magnitude. The relationship of σ_ (cv) -σ_c between various ice can be described by linear function at different temperatures.