Shielding design and seismic design were both applied to the shielding door of the anti-radiation excavator to make sure that the radiation dose exposed to staff members will be less than 91. 3 μSv within 4hours,and that the lead glass will be free from any damage due to vibration while functioning. The way of pouring lead into the steel box was adopted to de-sign the shielding door plank. It was figured out that the thickness of the lead plate was 22 mm,the thickness of the glass,whose model is ZF6 ,was 60 mm. The spring damping struc-ture an...
