加拿大西部各露天煤矿年产煤5700万吨,年剥离废石2亿吨。废石排弃是一项艰巨的任务。排土场的选址最主要考虑的因素是经济效果,为了保持运输费用低廉,应尽量靠近采场。排土场最优位置的选择首先取决于矿山短期和长期计划。当可能的位置确定以后,对其进行土壤力学研究。这项研究一般包括工程地质调查、基础岩土取样、堆积岩土特性分析、地形测量、推荐的废石运输方法及 Open-pit coal mines in western Canada produce 57 million tons of coal a year, with an annual strip of 200 million tons of waste rock. Abandoned waste rock is a daunting task. The most important consideration for the site selection of the dump site is the economic effect. In order to keep the transport cost low, it should be as close as possible to the stope. The choice of the optimal location for the dump depends first and foremost on the short and long term plans of the mine. Soil mechanics studies are conducted after the possible locations have been established. This study generally includes engineering geological surveys, basic geotechnical sampling, characterization of accumulated geotechnical properties, topographic surveying, recommended waste rock transportation methods, and