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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報道

精彩|　　據(jù)?(ju)了??(le)解??(jie)?，杭??(hang)州??(zhou)灣??(wan)是??(shi)世??(shi)界??(jie)三??(san)大??(da)強??(qiang)潮?(chao)海??(hai)灣??(wan)之??(zhi)一??(yi)?，海??(hai)域??(yu)寬??(kuan)、風(fēng)??(feng)大??(da)、浪??(lang)高??(gao)、潮?(chao)差??(cha)大??(da)、流??(liu)急??(ji)?，建??(jian)橋??(qiao)條??(tiao)件??(jian)受??(shou)水??(shui)文??(wen)、氣??(qi)象??(xiang)、地??(di)質(zhì)??(zhi)等?(deng)自??(zi)然??(ran)環(huán)??(huan)境??(jing)的?(de)影??(ying)響??(xiang)大?(da)??。??特??(te)別??(bie)是??(shi)8號??(hao)墩??(dun)所??(suo)處??(chu)海??(hai)域??(yu)地??(di)質(zhì)??(zhi)條??(tiao)件??(jian)復(fù)?(fu)雜?(za)?，多??(duo)為??(wei)流?(liu)塑??(su)層??(ceng)或?(huo)軟??(ruan)塑?(su)層??(ceng)?，成??(cheng)孔??(kong)及??(ji)成??(cheng)樁??(zhuang)難??(nan)度?(du)大??(da)??。為??(wei)確??(que)保??(bao)鉆?(zuan)孔??(kong)樁??(zhuang)施??(shi)工??(gong)進??(jin)度??(du)和??(he)成??(cheng)孔??(kong)質(zhì)??(zhi)量??(liang)?，中??(zhong)鐵??(tie)大??(da)橋??(qiao)局??(ju)研??(yan)制??(zhi)了??(le)最??(zui)大??(da)鉆??(zuan)孔??(kong)直??(zhi)徑??(jing)4.5米??(mi)?，鉆??(zuan)孔??(kong)深??(shen)度??(du)可??(ke)達?(da)155米??(mi)的??(de)SWDM800大??(da)型??(xing)旋??(xuan)挖??(wa)鉆??(zuan)機秘(ji)?，使??(shi)用??(yong)該??(gai)設(shè)??(she)備??(bei)與??(yu)XR580旋??(xuan)挖??(wa)鉆??(zuan)機??(ji)接??(jie)力?(li)鉆??(zuan)進??(jin)成??(cheng)孔??(kong)?，并??(bing)配??(pei)備??(bei)相??(xiang)應(yīng)??(ying)的??(de)成??(cheng)孔??(kong)設(shè)??(she)備??(bei)???！　『??(hang)州??(zhou)灣??(wan)跨??(kua)海??(hai)鐵??(tie)路??(lu)橋??(qiao)是??(shi)南??(nan)通??(tong)至??(zhi)寧??(ning)波??(bo)高??(gao)鐵??(tie)關(guān)?(guan)鍵??(jian)控??(kong)制??(zhi)性??(xing)工??(gong)程??(cheng)??，采??(cai)用??(yong)無??(wu)砟??(zha)軌??(gui)道??(dao)??，設(shè)??(she)計??(ji)時??(shi)速??(su)350公??(gong)里??(li)??，全??(quan)長??(chang)29.2公?(gong)里??(li)??。??其??(qi)中??(zhong)??，杭??(hang)州??(zhou)灣??(wan)跨?(kua)海??(hai)鐵??(tie)路??(lu)橋??(qiao)北??(bei)航??(hang)道??(dao)橋??(qiao)全??(quan)長??(chang)932.7米??(mi)??，共?(gong)有??(you)北??(bei)端??(duan)8號??(hao)主??(zhu)塔??(ta)、南??(nan)端??(duan)9號??(hao)主??(zhu)塔??(ta)共??(gong)兩??(liang)個??(ge)主??(zhu)塔??(ta)??，均??(jun)采?(cai)用??(yong)曲??(qu)線??(xian)H形??(xing)鋼??(gang)筋??(jin)混??(hun)凝??(ning)土??(tu)結(jié)??(jie)構(gòu)??(gou)??。8號??(hao)主??(zhu)塔??(ta)高??(gao)200米??(mi)??，共??(gong)設(shè)??(she)52根??(gen)直??(zhi)徑?(jing)2.5米??(mi)鉆??(zuan)孔??(kong)灌??(guan)注??(zhu)樁??(zhuang)基??(ji)礎(chǔ)??(chu)??，采??(cai)用??(yong)梅??(mei)花?(hua)式??(shi)布?(bu)置??(zhi)??，最??(zui)大??(da)樁??(zhuang)長??(chang)129.5米??(mi)??，鉆??(zuan)孔??(kong)深??(shen)度?(du)約?(yue)151米??(mi)??，為秘(wei)大??(da)直??(zhi)徑??(jing)超??(chao)長??(chang)鉆??(zuan)孔??(kong)樁??(zhuang)??。

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