Strictly in accordance with the requirements of gas supply system, drivers' visual field scope, the standards of radiation protection and the total weight of excavator in construction site, the gas supply system, leaded glass windows, imaging systems and the thickness of radiation shielding material of cockpit were designed. The design's basis for the excavation were obtained through gas supply system experiments, lead glass mechanical performance test, window size's experiment and the modeling and simulation of cabin's shielding effect by ...