履带式推土机的爬坡能力是指其在规定坡道上可以正常作业。如推移散料、开挖河道、平整坡面等。在棘洪滩水库大坝施工中,我们选用TY220型推土机在坡度为27°的坝面进行平整作业。作业过程中,发现该机爬坡能力不正常。即:冷车启动后,水平方向作业和爬坡性能均无异常现象;运行约两小时以后,机内 The crawler bulldozer’s gradeability means that it can operate normally on the specified slope. Such as the release of bulk materials, excavation of rivers, leveling slopes and so on. In the dam construction of the Chihongtan Reservoir, we used the TY220 bulldozer to perform leveling operation on a dam surface with a gradient of 27°. During the operation, the climbing ability of the aircraft was found to be abnormal. Namely: After the cold start, there is no abnormality in the horizontal operation and climbing performance; after about two hours of operation,