(1. 長沙礦冶研究院，長沙 410012；2. 中南工業(yè)大學資源、環(huán)境與建筑工程學院，長沙 410083)
摘 要: 從表土基底厚度及與土場廢石接觸條件出發(fā)，論述了土場荷載作用下平緩表土基底作用機制，導出了臨界表土厚度hm及確定土場極限堆高的方法與公式，指出了現(xiàn)用方法只是其中特例，并簡要介紹了兩個成功的工程應用實例。
關鍵字: 排土場；極限堆高；臨界厚度
（1. Changsha Research Institute of Mining and Metallurgy, Changsha 410012, P. R. China
2. Central South University of Technology, Changsha 410083, P. R. China ）
Abstract:The action mechanism of the load of a dump on a flat surface soil substrate was discussed, according to the thickness of surface soil substrate and the conditions under which it contacts with waste rocks. An equation for critical surface soil thickness, hm and equation for determining the limiting height of a waste dump were derived. It was pointed out that the existing equation is a special example among them. Finally, two successful examples were presented in detail.
Key words: rock disposal dumps; limit height; critical thickness
