矿山企业所消耗的木材是较多的。目前坑内支护材料不仅绝大部分是使用木材(仅少数的主平硐及井筒,使用钢材或石材支护),而且,采准天井中的行人梯子,也全部是木梯子。在工农业生产大跃进的时代里,寻找坑内支护材料的代用品,节约木材,是矿山企业的一项重要任务。使用竹梯子代替采准天井中的木梯子,是 Mining companies consume more wood. At present, not only the majority of pit support materials are wood (only a few main adit and wellbore are supported by steel or stone), but also the pedestrian ladders in the quasi-patio are all wooden ladders. In the era of great leap forward in industrial and agricultural production, looking for substitutes for pit support materials and saving timber is an important task for mining enterprises. Use a bamboo ladder instead of a wooden ladder in a quarry