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林业集材架空索道上、下力点的定位,是继选线工作之后的第一个实际问题,它在很大程度上左右线路的走向、安装工程量和生产效能。一般情况下,粗大活立木或伐根是集材索道的理想力点,所以山上的力点是很容易找到的。而山下公路旁(为方便木材转运,集材索道多与公路衔接)由于不具山上的天然条件,常用人工地锚作其下力点。在埋设人工锚的工程中,易出现两种偏
The positioning of the upper and lower force points on the aerial tramway of forestry taps is the first practical issue after the alignment work. It largely affects the direction of the line, the installation quantity and the production efficiency. Under normal circumstances, the rough living wood or cutting root is the ideal point of the timber ropeway, so the force point on the hill is very easy to find. The mountain next to the road (for the convenience of timber transports, truss ropeway and highway convergence) because of the mountain’s natural conditions, the commonly used artificial anchor for its next point. In laying artificial anchors in the project, prone to two kinds of bias