| 新奥法施工隧道掘进作业接尘量调查 |
| |
| 引用本文： | 邓国祥,赵这武.新奥法施工隧道掘进作业接尘量调查[J].铁道劳动安全卫生与环保,1994,21(1):8-10. |
| |
| 作者姓名： | 邓国祥 赵这武 |
| |
| 作者单位： | 铁道部第三工程局中心卫生防疫站 |
| |
| 摘 要： | 新奥法施工隧道掘进作业粉尘时间加权平均浓度为１４．４９ｍｇ／ｍ■＾３。各工班中以炮后时间加权平均浓度最高（４１．８８ｍｇ／ｍ■＾３），装碴和打眼分别为２２．８４ｍｇ／ｍ■＾３和６．４４ｍｇ／ｍ■＾３。掘进作业全过程时间加权接尘量为１２２５９．５７ｍｇ／（ｍ■＾３．ｍｉｎ）。其中装碴接尘量最高７１７．７６ｍｇ／（ｍ■＾３．ｍｉｎ）占掘进全过程总接尘量的５８．５０％。各产尘工序产尘量构成比也以装碴最高
|
| 关 键 词： | 隧道工程 新奥法 接尘量 掘进作业 |
Survey of Exposed Dust of Tunnel Driving Working under Construction with NATM |
| |
| Deng Guoxiang, Zhao Xuewu.Survey of Exposed Dust of Tunnel Driving Working under Construction with NATM[J].Railway Occupational Safety Health & Environmental Protection,1994,21(1):8-10. |
| |
| Authors: | Deng Guoxiang Zhao Xuewu |
| |
| Institution: | Deng Guoxiang; Zhao Xuewu(Central Hygienic and Antiepidemic Station ofthe Third Engineering Bureau in Railway Ministry (030006 )) |
| |
| Abstract: | Time weighted mean concentration of dast is 14.49 mg/m3 in tunnel driving construction withNATM. The most high of this index is 41 .83 mg/m3 aftet explosion in every work teams. These inloading dregs and drilling heles are 22.84 mg/m3 and 6.44 mg/m3 respectively. Time weighted exp osed dust value is 12259.57mg/ (m3 min ) in whole tunnel driving working. The most high of this is7171 .76 mg/(m3. min) during loading dregs and it constitutes 58.5% of total exposed dust value. Theratio of dust-making in every working procedures is 65.53% 18.78% and 15.67% for loading dregs,drilling holes and explosion respectively. |
| |
| Keywords: | Tunnel under construction Exposed dust Time weighted mean concentration |
| 本文献已被 CNKI 维普 等数据库收录！ |
