【摘要】 本文对海拔２３００ｍ中度高原特钢行业１３个生产单位１７３个岗位的９４７人进行了体力劳动强度分级的调查研究。结果表明：体力劳动强度Ⅰ级的岗位占３５．８４％；Ⅱ级的岗位占４２．２０％；Ⅲ级的岗位占１３．９８％；Ⅳ级的岗位占８．０９％，工作日平均能量代谢率为８．９８２２ｋｊ／ｍｉｎ。ｍ￣２，劳动时间率平均为６６．３％，与平原资料比较劳动强度增加２３．６％。作者认为对高原地区不同海拔高度体力劳动强度好别应有不同划分，以加强高海拔地区工人的劳动保护。更多还原

【Abstract】 nvestigation of physical labor intensity has been carried out in 173 working position of 974workers in 13 special steel corporations where 2 300 meter above sea level.The resultes showedthat physical labor intensity grades Ⅰ 35.8%, grades Ⅱ 42.2%,grades Ⅲ 13.87%,grades Ⅳ8.09%.Average weighting energy metabolism was 8.9822 kj/min·m￣2.Average working time ratewas 66.3%.Comparing with plain physical laborintensity increased23.6%.we think labor inten-sity gradtion in different high sea level were different so as to protect workes who works in highaltitude更多还原