地下における建設工事に従事する作業者の生体負担に関する調査

概要

論文の詳細を見る
Working conditions and workers physical strain in underground constructions were surveyed which were done by caisson or shield method. 23 cases on seven sites were surveyed. 4 cases of caisson and 5 cases of shield were constructed by compressed air conditions. The frozen soil method was adopted to one shield construction site. Followings are the results of the surveyes. 1. Sound levels that could cause temporary or permanent threshold shift were recorded. 2. Because of masking effect by noise on conversations in sites, it seems to arise the reduction of performance of works and disturbance of report in an emergency. 3. In underground construction sites in general, not only darkness but also glare is remarkable, and they affect on the work and fatigue by work. 4. Large rate of increase of puls frequency at work is recorded, that is inappropriate for the longer duration of works. 5. The narrow working space in the underground affects workers feelings of fatigue. 6. From the regression analysis between working temperatures and work stress, there are a strong relation between the cumulative temperature of workers and the subjective feelings of fatigue.
社団法人日本建築学会の論文
1995-11-30