论文部分内容阅读
鋼筋混凝土預制軌枕与軌道固定的方式,目前有預埋木块与預埋螺栓两种。前者由于木块容易腐朽而大大縮短使用年限,后者由于用垫板,消耗鋼材較多,而且鋪設軌道也极不方便,因而都不能迅速广泛地使用。最近国外有一种不带螺栓的鋼筋混凝土軌枕,使用期限长,鋼材用量少,混凝土用量少,鋪設方便,是一种比較好的軌枕。可采取两种不同的型式(其规格特征見表1)混合使用。即当軌长为12.5米鋪5个长1500mm的軌枕,在它們中間再鋪三对长500mm
Reinforced concrete sleepers and rail fixed way, there are two types of embedded blocks and embedded bolts. The former greatly shortens the service life due to the rot of wooden blocks. The latter uses steel plates, consumes more steel, and is extremely inconvenient for laying the rails. Therefore, it cannot be quickly and widely used. Recently, there is a kind of reinforced concrete sleeper without bolts abroad, which has a long service life, less steel, less concrete, and easy laying. It is a good sleeper. Two different types (see Table 1 for their specifications) can be mixed and used. That is, when the track length is 12.5 meters, 5 sleepers are 1500 mm long, and three pairs of 500 mm long are placed between them.