2025-03-27 15:46:26 來源:新華網(wǎng)
原標(biāo)題:99久久99久久久精品齐齐
學(xué)習(xí)快評丨qibao666888 該??(gai)設(shè)??(she)備??(bei)由??(you)杭??(hang)州??(zhou)市??(shi)水?(shui)務(wù)??(wu)集??(ji)團??(tuan)、中??(zhong)國??(guo)鐵??(tie)建??(jian)重??(zhong)工??(gong)集?(ji)團??(tuan)、中??(zhong)鐵??(tie)十?(shi)八??(ba)局??(ju)集??(ji)團??(tuan)等??(deng)單??(dan)位?(wei)聯(lián)??(lian)合??(he)打??(da)造??(zao)??,最??(zui)大??(da)開??(kai)挖??(wa)直??(zhi)徑?(jing)達(dá)??(da)12.68米??(mi)??,整??(zheng)機??(ji)長??(chang)107米??(mi)??,總??(zong)重??(zhong)量??(liang)3500噸??(dun)??,是?(shi)一??(yi)臺??(tai)超??(chao)大??(da)直??(zhi)徑??(jing)雙??(shuang)護??(hu)盾??(dun)隧?(sui)道??(dao)掘??(jue)進(jìn)??(jin)機?(ji)??,未??(wei)來??(lai)將??(jiang)用??(yong)于??(yu)擴??(kuo)大??(da)杭??(hang)嘉??(jia)湖??(hu)南??(nan)排??(pai)后??(hou)續(xù)??(xu)西??(xi)部??(bu)通??(tong)道??(dao)工??(gong)程??(cheng)南??(nan)段??(duan)隧??(sui)洞??(dong)施??(shi)工??(gong)??。?? 該??(gai)工?(gong)程?(cheng)系??(xi)中??(zhong)國??(guo)城??(cheng)市??(shi)排??(pai)澇??(lao)規(guī)??(gui)模??(mo)、洞??(dong)徑??(jing)和?(he)埋??(mai)深??(shen)最??(zui)大??(da)的??(de)深??(shen)層??(ceng)隧??(sui)洞??(dong)排??(pai)水??(shui)系??(xi)統(tǒng)??(tong)工??(gong)程??(cheng)??,主??(zhu)要??(yao)任??(ren)務(wù)?(wu)為??(wei)防??(fang)洪??(hong)排??(pai)澇??(lao)??,兼?(jian)顧??(gu)改??(gai)善??(shan)水?(shui)生??(sheng)態(tài)??(tai)環(huán)??(huan)境??(jing)??。??其?(qi)建??(jian)成??(cheng)后??(hou)將??(jiang)進(jìn)??(jin)一??(yi)步??(bu)減??(jian)輕??(qing)太??(tai)湖??(hu)流??(liu)域??(yu)防??(fang)洪??(hong)壓??(ya)力??(li)??,保??(bao)障?(zhang)杭??(hang)州??(zhou)城??(cheng)西??(xi)防??(fang)洪??(hong)排??(pai)澇??(lao)安??(an)全??(quan)??,構(gòu)??(gou)筑??(zhu)杭??(hang)州?(zhou)主?(zhu)城??(cheng)區(qū)?(qu)安??(an)全??(quan)屏??(ping)障?(zhang)??。。