隧道建设
隧道建設
수도건설
TUNNEL CONSTRUCTION
2011年
6期
712-716
,共5页
隧道%斜井%正井法%反井法%排碴导洞
隧道%斜井%正井法%反井法%排碴導洞
수도%사정%정정법%반정법%배사도동
tunnel%inclined shaft%downward driving method%raise driving method%mucking tunnel
以包家山隧道3号斜井和秦岭1号隧道斜井工程为例,对斜井的正井法与反井法作了阐述,重点介绍反井法中排碴导洞的开挖方法、出碴方式、出碴设备、滑碴风险预防、通风方式、风管防护等内容。通过工程实践表明:1)正井法施工斜井是目前公路隧道施工斜井广泛采用的方法,一般是为增加开挖工作面而设,可提高施工效率,缩短工期;2)反井法施工斜井是为隧道的运营通风而设,施工难度较大,对于施工机械设备的配套要求较高,故在条件许可的情况下,一般应采用施工方法成熟、安全的正井法。
以包傢山隧道3號斜井和秦嶺1號隧道斜井工程為例,對斜井的正井法與反井法作瞭闡述,重點介紹反井法中排碴導洞的開挖方法、齣碴方式、齣碴設備、滑碴風險預防、通風方式、風管防護等內容。通過工程實踐錶明:1)正井法施工斜井是目前公路隧道施工斜井廣汎採用的方法,一般是為增加開挖工作麵而設,可提高施工效率,縮短工期;2)反井法施工斜井是為隧道的運營通風而設,施工難度較大,對于施工機械設備的配套要求較高,故在條件許可的情況下,一般應採用施工方法成熟、安全的正井法。
이포가산수도3호사정화진령1호수도사정공정위례,대사정적정정법여반정법작료천술,중점개소반정법중배사도동적개알방법、출사방식、출사설비、활사풍험예방、통풍방식、풍관방호등내용。통과공정실천표명:1)정정법시공사정시목전공로수도시공사정엄범채용적방법,일반시위증가개알공작면이설,가제고시공효솔,축단공기;2)반정법시공사정시위수도적운영통풍이설,시공난도교대,대우시공궤계설비적배투요구교고,고재조건허가적정황하,일반응채용시공방법성숙、안전적정정법。
Regarding the construction of inclined shafts,the downward driving method and the raise driving method are studied,with No.3 inclined shaft of Baojiashan tunnel and No.1 inclined shaft of Qinling tunnel as examples.Conclusions drawn are as follows: 1) The downward driving method is widely used in the construction of inclined shafts of highway tunnels,which are installed to develop new working faces so as to improve the construction efficiency and shorten the construction period.2) Inclined shafts for which the raise driving method is adopted are normally installed to facilitate the ventilation during the tunnel operation.These inclined shafts have great construction difficulties and have high requirements on equipments.Therefore,the downward driving method,which is a proved construction method and is safer,should be generally adopted for such inclined shafts.