铁道工程学报
鐵道工程學報
철도공정학보
JOURNAL OF THE RAILWAY ENGINEERING SOCIETY
2013年
11期
69-74
,共6页
张民庆%何志军%黄鸿健%肖广智
張民慶%何誌軍%黃鴻健%肖廣智
장민경%하지군%황홍건%초엄지
隧道%安全施工%研究
隧道%安全施工%研究
수도%안전시공%연구
tunnel%safety construction%research
研究目的:我国是世界上隧道最多的国家,目前以钻爆法施工为主。超前地质预报、隧道施工工法选择、隧道施工安全步距和隧道开挖进尺控制是影响隧道安全施工的四个关键问题。围绕这些关键问题,现场施工中存在着一定的认识偏见和错误的做法,严重地影响隧道的施工安全。因此,必须对这些关键问题进行研究与探讨,以确保隧道的安全施工。<br> 研究结论:(1)超前地质预报应有专项设计,针对不同的地质应采取合理有效的方法,应进一步明确超前地质预报费用和责任主体;(2)台阶法施工中,上台阶高度宜取2.5 m,以便于快速将顶部钢架安装定位,有利于施工安全,台阶长度宜为1倍洞径以内;(3)施工安全步距是台阶法施工确保安全的有效措施,必须强制性实施;(4)开挖进尺控制是防止掌子面失稳的有效措施,台阶法施工中必须严格控制;(5)本文研究成果可应用于铁路隧道台阶法施工。
研究目的:我國是世界上隧道最多的國傢,目前以鑽爆法施工為主。超前地質預報、隧道施工工法選擇、隧道施工安全步距和隧道開挖進呎控製是影響隧道安全施工的四箇關鍵問題。圍繞這些關鍵問題,現場施工中存在著一定的認識偏見和錯誤的做法,嚴重地影響隧道的施工安全。因此,必鬚對這些關鍵問題進行研究與探討,以確保隧道的安全施工。<br> 研究結論:(1)超前地質預報應有專項設計,針對不同的地質應採取閤理有效的方法,應進一步明確超前地質預報費用和責任主體;(2)檯階法施工中,上檯階高度宜取2.5 m,以便于快速將頂部鋼架安裝定位,有利于施工安全,檯階長度宜為1倍洞徑以內;(3)施工安全步距是檯階法施工確保安全的有效措施,必鬚彊製性實施;(4)開挖進呎控製是防止掌子麵失穩的有效措施,檯階法施工中必鬚嚴格控製;(5)本文研究成果可應用于鐵路隧道檯階法施工。
연구목적:아국시세계상수도최다적국가,목전이찬폭법시공위주。초전지질예보、수도시공공법선택、수도시공안전보거화수도개알진척공제시영향수도안전시공적사개관건문제。위요저사관건문제,현장시공중존재착일정적인식편견화착오적주법,엄중지영향수도적시공안전。인차,필수대저사관건문제진행연구여탐토,이학보수도적안전시공。<br> 연구결론:(1)초전지질예보응유전항설계,침대불동적지질응채취합리유효적방법,응진일보명학초전지질예보비용화책임주체;(2)태계법시공중,상태계고도의취2.5 m,이편우쾌속장정부강가안장정위,유리우시공안전,태계장도의위1배동경이내;(3)시공안전보거시태계법시공학보안전적유효조시,필수강제성실시;(4)개알진척공제시방지장자면실은적유효조시,태계법시공중필수엄격공제;(5)본문연구성과가응용우철로수도태계법시공。
Research purposes:China is the world's most populous country in the tunnel that usually use the drilling and blasting method. Advance geological prediction of tunnel construction method of choice, the safety of tunnel construction,step distance and the tunnel excavation footage control are four key problems in tunnel construction.In view of these problems,there are some cognitive biases and error approach in construction field,seriously affect the safety of tunnel construction.Therefore,must carry on the discussion and research on these key problems,in order to ensure the safety of the tunnel construction. <br> Research conclusions:(1 )Advance geological forecast shall have special design,in view of the different geological shall take reasonable and effective method,should further clarify the advance geological forecast expenses and liability. (2)Step construction,the step height is 2.5 m,to facilitate the rapid positioning that at the top of the installation of steel frame positioning,is conducive to the construction safety,step length should be 1 times of the diameter of the tunnel.(3)The construction safety step is an effective measure to step construction safety,mandatory implementation. (4)The excavation footage control is an effective measure to prevent the loss of stability of tunnel face,must be strictly controlled in the construction step method.(5)Research results can be applied to the bench method for construction of railway tunnel.