【摘要】 减少矿山占地是减少国土侵占的重要环节，在排土场表土基底作用机制、排土场泥石流形成、松散废石泄水机理、排土场压密过程研究基础上，完成的排土场增高扩容、泥石流细粒料源控制、排土场底部泄流、胶带排土场变形分析等技术，将促使我国排土场工程发展。文中还介绍了南芬庙儿沟排土场、厂坝七架沟排土场两个成功实例。更多还原

【Abstract】 Reducing mine′s land is one of major measures to avoid illegal occupation of cultivated land. The authors studied action mechanism of surface soil, formation of mudrock flow, sluicing mechanism of bulk waste rock and compacting process of a dumping site. Based on this, a series of techniques for dumping site have been achieved, such as increasing height and capacity, control of fine material resource of mudrock flow, base sluicing, and deformation analysis of belt conveyordumping site, etc.. The techniques will promote the development of China′s dumping engineering. In this paper, two successful examples are described.更多还原