In the process of establishing modern embankment heavy industry, the workload of long-distance soil transfer operation is increasing day by day. Therefore, many people think that the operation efficiency of open LHD is low and the LHD is useless. What role does the LHD play in the construction machinery of practical engineering?

目前在我们施工中应用比拟普遍的是公开铲运机，这种铲运机在施工中比拟灵敏便当，顺应性强。铲运机运土间隔适用于600米以内，除淤泥和岩石以外的土质都能施行施工作业，在往复循环的施工过程中自然碾压即可到达普通工程请求的压实系数，是其他施工机械无法停止的。

At present, the open scraper is widely used in our construction. This scraper is more sensitive, convenient and compliant in construction. The earth transportation interval of the scraper is suitable for the soil within 600m. The construction operation can be carried out for the soil other than silt and rock. During the reciprocating construction process, the natural rolling can reach the compaction coefficient required by the ordinary project, which can not be stopped by other construction machinery.

虽然目前施工范畴各种型号的发掘机和自卸汽车在施工中的有着普遍的运用，但在一些大中小型的水利工程，诸如河道的开挖，堤防的加固等工程中，特别是在土质较软的作业条件下，自卸车是无法完成运输作业的，那么铲运机就会成为无可替代的施工设备。

At present, various types of excavators and dump trucks are widely used in construction, but in some large, medium and small water conservancy projects, such as river excavation, embankment reinforcement and other projects, especially under the operating conditions of soft soil, the dump truck can not complete the transportation operation, so the scraper will become an irreplaceable construction equipment.

如今工程机械市场里，有不少人将铲运机报废处置，这自身是市场经济调理的结果，而不是说铲运机无用武之地了，而只是适于铲运机施工发挥优势的工程项目暂时较少而已。而在淮河主流沙颍河管理工程，南水北调工程开工后，铲运机就会由冷变热了，因而我们说铲运机施工作业，在今后很长一个时期内还将会优势长存，是不可或缺和替代的。

Nowadays, in the construction machinery market, many people scrap the LHD, which is the result of the adjustment of the market economy, not that the LHD is useless, but that there are only a few engineering projects suitable for LHD construction to give full play to its advantages. In the mainstream Shaying river management project of Huaihe River and the South-to-North Water Transfer Project, the LHD will change from cold to hot. Therefore, we say that the construction operation of LHD will continue to have advantages for a long time in the future, which is indispensable and alternative.

矿用铲运机的施工方式将是长期存在不可短少的，铲运机施工有着宽广的前景和空间。只需注重和增强对铲运机施工的科学管理和对铲运机械的正确运用，即便在目前状况下，铲运机的施工效率依然是很可观的。因而铲运机施工仍然有着美妙的前景。

The construction mode of mine LHD will be indispensable for a long time. LHD construction has broad prospects and space. As long as we pay attention to and enhance the scientific management of scraper construction and the correct use of shovel machinery, even under the current situation, the construction efficiency of scraper is still considerable. Therefore, LHD construction still has a wonderful prospect.