高山矿区开采后的地表岩移和塌陷,除具有相同于一般矿山的规律外,还有其自身特点。如东川、易门两矿区,二十多年采矿近三千万吨,但由于采后地表岩移、塌陷所坍塌和滚落的岩土量,则远远大于此数,由此形成的垮山滚石、泥石流及其尘害、水害等问题,危害甚大。而在过去设计工作中,对此的认识是不足的。本文仅就有别于一般矿山的相关情况,以及有关因素作一初步的探讨与分析。 如所周知,东川、易门两矿区的山势甚陡峻,地形复杂,山形坡度均在30～50°以上,山区的比高大,一般达300～600米,高者在2000米以上,极为险峻。在东川的因民、落雪各矿,主要开采倾斜、急倾斜薄至厚矿体,地表岩层大多不稳固,且多老峒, The surface rock movement and collapse after the mining in the high mountain mining area have their own characteristics besides the same law as the general mine. For example, Dongchuan and Yimen counties have nearly 30 million tons of ore mined in more than 20 years. However, due to the post-mining ground surface rock movement, the amount of soil collapsed and torn down by collapse is much larger than this number, Rolling stones, debris flow and its dust, water damage and other issues, endangering. In the past design work, this understanding is not enough. This article is only different from the general situation of the mine, and related factors for a preliminary discussion and analysis. As we all know, Dongchuan, Yimen two mining area is very steep mountains, complex terrain, Yamagata slope are 30 ~ 50 ° above the mountain than the tall, usually up to 300 to 600 meters, the highest at more than 2000 meters, very steep. In Dongchuan because of the people, snow all the mines, the main mining tilt, steeply inclined thin to thick ore body, most of the surface rock formation is unstable,