架空索道是山地林区木材运输的重要手段,目前全国约有2800条索道用于木材生产。据统计,在索道作业中钢索的损耗费约占整个作业费用的30％,其中承载索的费用占钢索费用的40—50％。能否合理地设计和架设索道,对钢索的寿命有很大的影响。 我国计算承载索拉力使用的是苏联杜盖尔斯基的三次方程式和日本加藤诚平公式 Aerial tramway is an important means of timber transportation in mountainous forest areas. At present there are about 2,800 tramways in the country for timber production. According to statistics, the loss of cable in cableway operations accounts for about 30% of the total operating costs, of which the cost of carrying cables accounts for 40-50% of the cable costs. The rational design and installation of cable lanes have a great impact on the life of the cable. China’s calculation of bearing cable pull using the Soviet Union Dugueski’s cubic equation and the Japanese Kato Chengping formula