【摘要】 崩落矿岩散体被视作连续介质,从场论的观点出发,系统研究了无限边界条件下崩落矿岩散体移动场的密度场。散体在底部放出口放出过程中,散体移动场中存在散体移动场和散体静止场,且两场在移动边界上必保持连续。在散体移动场中,对于理想散体,密度场为均匀场和定常场;对于实际散体,密度场为非均匀场和不定常场。在散体静止场中密度场为均匀场和定常场。论文介绍了理想散体和实际散体移动场密度方程,并对散体移动场的密度场特征进行了系统总结和论证,具有较高的理论价值和参考价值。更多还原

【Abstract】 The loose mine-rock in caving method is assumed as continuous medium.From the viewpoint of field theory,the density field of loose mine-rock is systematically studied under the condition of limitlessly boundary.There are moving field and static field when the loose mine-rock is partly drawn out from the bottom hole.The moving field certainly keeps continuum with the static field on the moving boundary. In the moving field of loose mine-rock under the ideal condition,the density field is uniform and constant.In the moving field of loose mine-rock under the actual condition the field of density is non-uniform and un-constant.In the static field of loose mine-rock,the field of density is uniform and constant.The equations of density in moving field have been given under the ideal and actual conditions.The character of density field has been systematically generalized and demonstrated.The study is complete and systematic,having highly values of theory and reference.更多还原