崩落采矿法是一种高效率的采矿法。近年来发展较快,在金属矿床开采中,得到了较为广泛的应用。它的主要特点之一,是在岩石复盖下进行放矿。因此,国内外的有关工作者对放矿时矿岩移动规律的研究,进行了大量的工作。由于椭球体理论是来自实验,比较接近实际;概念简明,易于运用,能够说明和解决一些生产实际问题,所以这种理论在当前仍居主导地位。它已经在理论上揭示了放矿过程中,散体移动的基本规律。但是,这种理论还不够完善。主要问题是,第一,“椭球体”是由实验发现的,重要参数也是根据实验 Caving mining is a highly efficient mining method. In recent years, rapid development in the mining of metal deposits, has been more widely used. One of its main features is to mine the rock under cover. Therefore, a great deal of work has been done by researchers at home and abroad on the study of the law of ore movement during ore discharge. As the theory of ellipsoid comes from experiment, it is relatively close to reality. The concept is concise and easy to use, which can explain and solve some practical problems in production. Therefore, this theory still dominates the present. It has already revealed theoretically the basic law of the movement of bulk in the process of ore discharge. However, this theory is not perfect enough. The main problem is, first, the “ellipsoid” is discovered experimentally and the important parameters are also based on experiments