论文部分内容阅读
从1958～1976年我们对从事隧道矽尘作业工人(简称隧道工)开展了矽肺调查。共调查了隧道工86883名,发现各期矽肺患者1272名。通过调查实践,积累了若干资料,从中摸索了一些经验。现将矽肺调查及防治情况总结如下: 一、基本情况我局系解放后建立的一个新线铁路建设工程单位。二十多年来,施工队伍主要在四川、贵州、云南、湖南、广西等省区修建铁路。先后修建了成渝、宝成、川黔、黔贵(都贵段)、贵昆、成昆、湘黔及枝柳等铁路干线,工人同志们在开山、爆破、开挖隧道施工过程中,广泛接触矽尘。 (一) 隧道作业概况: 在隧道施工中,其工艺过程大体相同,从开挖掘进到成峒可分几个工艺过程:即凿岩爆破→支撑
From 1958 to 1976, we carried out a silicosis investigation of workers engaged in tunnel silica dust (referred to as tunnel workers). A total of 86,883 tunnel workers were surveyed and 1272 silicosis patients were found. Through the investigation of practice, accumulated a number of information, from which groping some experience. Now the situation of silicosis investigation and prevention is summarized as follows: I. Basic Situation A new line of railway construction engineering unit established after the liberation of our bureau was set up. For more than two decades, construction teams mainly built railways in the provinces of Sichuan, Guizhou, Yunnan, Hunan and Guangxi. The construction of the railway lines of Chengdu, Chongqing, Baocheng, Chuanqian, Qiangui (Gugu section), Guizhou Kunming, Chengkun, Xiangqian and Zhiliu and other railway lines have been successively carried out. During the construction of tunnels, explosions and tunnels, Extensive exposure to silica dust. (A) Overview of tunneling operations: In the tunnel construction, the process is generally the same, from excavation into Cheng Cheng can be divided into several processes: the blasting → support →