敞开式TBM在吉林省中部城市引松供水工程的应用

Application of Open-type TBM in Songhua River Diversion Water Supply Project for Cities in the Middle Part of Jilin Province

吉林省中部城市引松供水工程输水总干线采用自流输水,从丰满水库取水口向西南经过永吉县城南侧,穿过温德河、岔路河,从星星哨水库上游通过,至饮马河处设置分水口,分水入饮马河,自流入石头口门水库,经水库调节后向长春市东部城区、九台市、德惠市供水。输水总干线隧洞丰满水库取水口～饮马河自然段长近72 km,采用3台直径为7.97 m敞开式全断面岩石掘进机施工。介绍了TBM选型原则,主机选择方案及其施工布置。

Artesian water diversion was adopted on water general main line to divert water from the Songhua River for the cities in the middle part of Jilin Province,beginning from the intake of the Fengman Reservoir to the southwest,passing by the southern side of Yongji County,crossing the Wende River and Chalu River,getting through the upper Xingxingshao reservoir to set a bleeder in the Yinma River,diverting water to the Yinma River,flowing into the Shitoukoumen reservoir,being regulated in the reservoir,then supplying the water for the eastern urban area of Changchun City,Jiutai City and Dehui City.It is nearly 72km from the intake of the Fengman reservoir to the natural Yinma River section;three open-type TBMs in the diameter of 7.97m were used in construction.Principles to select the type of TBM,scheme of principal machine selection and construction layout were introduced in the study.