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土方工程中使用的輪胎式拖拉机(推土机)与有五十多年历史的履带式拖拉机比較起来,它是个很引人注意的新型机器。但是过分地热衷于使用这种新型机器,用的不当,容易造成浪费,故应从以下各方面加以考虑。速度与机动性在工地之間要频繁地来回往返作业,或者对牵引力要求不大的工程(如填鋪土方),看来,用輪胎式推土机要比履带式的好得多。如果在很长时間內,推土机都要在一个局限的場地工作,或者需要牵引力大的工程,則拖拉机的速度和机动性就不若前者那么重要了。
Tire-type tractors (bulldozers) used in earthworks are a striking new type of machine compared to tracked tractors with more than 50 years of history. But excessively keen to use this new type of machine, improper use, is prone to waste, it should be considered from the following aspects. Speed and maneuverability Frequent trips to and from work sites, or projects that require less traction (such as filling earthwork), appear to be much better with track-type bulldozers. If the bulldozer has to work on a confined site for a long time, or if it needs a traction project, the speed and mobility of the tractor will not be as important as the former.