根据上海市延安东路越江隧道工程中反复高气压作业安全减压的需要,经研究确定减压方案所需残余氮当量时间△t的参数计算后,在工作压力80～300kPa(0.8～3.0kgf/cm~2)、两次作业时间之和为6h的条件下,通过8名锻炼员108人次模拟实验,制订了反复高气压作业减压方案的作业时间调整表;在该工程中进行反复高气压作业、减压1181人次的应用验证,结果无一例发病。 According to the requirements of safety decompression of repeated high-pressure work in the cross-river tunnel project of Yan’an East Road in Shanghai, after the parameters of the residual nitrogen equivalent time △ t required for the decompression scheme are determined and studied, the working pressure is 80-300kPa (0.8-3.0kgf / cm ~ 2), and the sum of the two working hours is 6h, the working time adjustment table of repeated decompression scheme of high-pressure operation was worked out by 108-person simulation experiments of 8 exercisers. In this project, repeated high Air pressure operation, decompression 1181 application verification, the results of no case of disease.