挖掘机租赁被广泛用于建筑工地、修建施工、园林绿化、城市建设、电缆铺设施工、农田使用、管道开挖埋设工作。大型挖掘机和推土机变成大方量土石方的主力军，是工程建筑的好帮手。
Excavator leasing is widely used in construction sites, construction, landscaping, urban construction, cable laying construction, farmland use, pipeline excavation and embedding. Large excavators and bulldozers have become the main force of generous earthwork and are good helpers for engineering construction.
挖掘机主要是一种土方机械。在工程建设中，挖掘机的工作使命是多样化的，可挖掘基坑、沟槽，整理平整场地。是修建工程建筑施工中占到主导地位的土方机械设备。在根据多工况工地需求后还可以进行破碎各种石头岩石混领土、土石方的挖运、起重吊装、打桩等工作使命。
Excavator is mainly a kind of earth moving machinery. In engineering construction, the working mission of excavator is diversified. It can excavate foundation pits and grooves, and sort out and level the site. It is the earthwork machinery and equipment that plays a leading role in the construction of construction projects. According to the requirements of the construction site under multiple working conditions, it can also break all kinds of stone and rock, excavate and transport earthwork, lift and hoist, pile driving and other tasks.

挖土挖沟开挖时，挖掘机沿着沟端逐步后退，向后开挖。自卸轿车停在沟侧，挖掘机动笔只需反转40°~45°即可卸料。假如所挖沟宽为挖掘机挖掘半径的二倍(即挖掘机每停置一处，在180°的反转规模挖掘)，则自卸轿车只能停在挖掘机旁边面，挖掘机动臂需作90°反转才干卸料。若所挖沟宽超越做大挖掘半径的二倍，则需分段开挖，即挖掘机后退挖到止境后，在该端变换方位反向开挖毗连一段。此法每段的挖掘宽度不宜过大，以自卸轿车能在沟侧行进为准则，可削减每一工作循环的时刻，进步机械的工作功率。
During excavation, the excavator gradually retreats along the ditch end and excavates backward. The dump car stops at the ditch side, and the excavator only needs to reverse 40 ° ~ 45 ° to unload. If the width of the excavated ditch is twice the maximum excavation radius of the excavator (i.e. the excavator is excavated at the reverse scale of 180 ° for each stop), the dump car can only be parked next to the excavator, and the boom of the excavator needs to be reversed at 90 ° before unloading. If the width of the excavated ditch exceeds twice the larger excavation radius, it needs to be excavated in sections, that is, after the excavator retreats to the end, change the direction at this end and excavate in reverse for a section adjacent to it. The excavation width of each section of this method should not be too large. Based on the principle that the dump car can travel on the ditch side, it can reduce the time of each working cycle and improve the working power of the machinery.
挖水沟时的驾驶方法：
Driving method when digging ditches:
挖掘机在沟侧开挖，轿车在沟端受料，挖掘机动臂做小于90°反转卸料。此法每次挖掘宽度(沟宽)只能在其挖掘半径规模以内，缺陷是挖沟的边坡较大。
The excavator excavates at the ditch side, the car receives the material at the ditch end, and the excavator boom performs reverse unloading less than 90 °. The excavation width (ditch width) of this method can only be within its excavation radius, and the defect is that the slope excavated is large.
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