隧道建设
隧道建設
수도건설
TUNNEL CONSTRUCTION
2014年
z1期
297-301
,共5页
高海拔寒区%鸡丑山隧道%有害气体%监测%控制技术
高海拔寒區%鷄醜山隧道%有害氣體%鑑測%控製技術
고해발한구%계축산수도%유해기체%감측%공제기술
high altitude cold area%Jichoushan tunnel%harmful gas%monitoring%control technology
高海拔寒区隧道恶劣的施工环境是限制施工进度的瓶颈,为了研究施工粉尘、有害气体的浓度及分布规律,采用滤膜测尘法和便携式CO检测仪分别对鸡丑山隧道粉尘和CO进行现场监测,用统计法对数据进行处理。结果表明:不同的施工工序粉尘和有害气体含量差别较大,喷浆作业粉尘浓度最高,爆破作业有害气体浓度较高,出渣作业粉尘和有害气体浓度均较高,只有立架作业时隧道空气条件相对较好,无轨出渣是制约高海拔寒区隧道施工环境问题的最关键因素。结合高海拔地区隧道施工环境的特殊性,提出粉尘和有害气体的控制措施,并对提出的措施进行现场监测效果验证。研究结果对高海拔寒区隧道施工环境的控制具有借鉴意义。
高海拔寒區隧道噁劣的施工環境是限製施工進度的瓶頸,為瞭研究施工粉塵、有害氣體的濃度及分佈規律,採用濾膜測塵法和便攜式CO檢測儀分彆對鷄醜山隧道粉塵和CO進行現場鑑測,用統計法對數據進行處理。結果錶明:不同的施工工序粉塵和有害氣體含量差彆較大,噴漿作業粉塵濃度最高,爆破作業有害氣體濃度較高,齣渣作業粉塵和有害氣體濃度均較高,隻有立架作業時隧道空氣條件相對較好,無軌齣渣是製約高海拔寒區隧道施工環境問題的最關鍵因素。結閤高海拔地區隧道施工環境的特殊性,提齣粉塵和有害氣體的控製措施,併對提齣的措施進行現場鑑測效果驗證。研究結果對高海拔寒區隧道施工環境的控製具有藉鑒意義。
고해발한구수도악렬적시공배경시한제시공진도적병경,위료연구시공분진、유해기체적농도급분포규률,채용려막측진법화편휴식CO검측의분별대계축산수도분진화CO진행현장감측,용통계법대수거진행처리。결과표명:불동적시공공서분진화유해기체함량차별교대,분장작업분진농도최고,폭파작업유해기체농도교고,출사작업분진화유해기체농도균교고,지유립가작업시수도공기조건상대교호,무궤출사시제약고해발한구수도시공배경문제적최관건인소。결합고해발지구수도시공배경적특수성,제출분진화유해기체적공제조시,병대제출적조시진행현장감측효과험증。연구결과대고해발한구수도시공배경적공제구유차감의의。
Bad construction environment is usually a difficulty for construction schedule.The membrane filter dust method and portable CO detector are used respectively to monitor the construction dust and CO of Jichoushan tunnel, and the statistical method is used to analyze the monitored data,so as to learn the consistence and distribution laws of construction dust and CO.The results show that there are great differences among different consistence of construction dust and CO,and trackless mucking has a great influence on construction environment.The control technologies for construction dust and CO are proposed,and field testing is carried out.The paper can provide references for environment control of similar projects in the future.