土石方挖装量大面广，工程设备工作条件恶劣，生产中因铲斗损坏而造成整个工作面停工的情况在逐渐上升，且经济损失相当可观。例如：在小浪底工程施工中H标承包商租赁小浪底建管局的EXI100型挖掘机在退租时，因铲斗撕裂未能按合同及时退租，多支付近两个月的租赁费。因此，在挖 Large amounts of earth and stone excavation, engineering equipment, poor working conditions, production due to bucket damage caused by the entire face down situation is gradually rising, and the economic losses are considerable. For example: Hula contractor leases Xiaolangdi Building Authority’s EXI100 excavator in construction of Xiaolangdi Project When renting a shit, the shredding of the shovel bucket fails to be repaid promptly in accordance with the contract, and the rental fee of more than two months is paid. So digging