胶结层及其对砂金开采的影响

Solid Formation and Its Effect on Alluvial Gold Mining

近年来在砂金矿床的勘探和开采中 ,发现在第四系河流冲积物中存在砂砾石胶结地质体 ,被称为胶结层。介绍了胶结层在我国的分布地区、埋藏特点 ,同时阐明胶结层的物理力学特征及对采金船开采砂金矿的危害 ,指出在矿床开采设计中应注意的问题。

Gravel cemented geological body,called solid formation,has been found in the fluvial sediment of Quaternary system in the exploration and mining of alluvial gold deposit in recent years.Its distribution regions and occurence characteristics in China are presented.The physical and mechanical properties of solid formation and its harinfulness to the alluvial gold mining by dredging are described and the problems needing attention in the deposit mining design are pointed out.