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美国水电站常用的主要施工机械有0.28,0.38,0.57,0.76,1.15,1.35和3.1米~3带更换工作設备(包括正鏟、反鏟、拉鏟、抓斗和起重設备)的挖掘机,2.3—41米~3的自行式鏟运机和100—250馬力推土机等。运土設备多为底卸式自卸汽車与半拖車。挖掘机和推土机的平均生产率如表1表2所示。挖掘机担負主要土方的开挖,推土机則多用于清整区段,也常用来清除障碍。根据美国的使用經驗,当运距为7.5—90米时,使用推地机是合适的。
The main construction machinery commonly used in the United States is the excavation of 0.28, 0.38, 0.57, 0.76, 1.15, 1.35 and 3.1 meters to 3 belt replacement work equipment (including front shovel, backhoe, pull shovel, grab bucket and lifting equipment). Machine, self-propelled scraper 2.3-41 m~3 and 100-250 horsepower bulldozer. Earth-moving equipment is mostly bottom dump type dump trucks and semi-trailers. The average productivity of excavators and bulldozers is shown in Table 2 of Table 1. Excavators are responsible for the excavation of major earthworks. Bulldozers are mostly used for clearing sections and are often used to remove obstacles. According to the experience of the United States, when the distance is 7.5-90 meters, the use of a pusher is appropriate.