三九養(yǎng)生堂記者 鄧肯·蓋伊 報(bào)道
精彩| 杭??(hang)州??(zhou)灣??(wan)跨??(kua)海??(hai)鐵??(tie)路??(lu)橋??(qiao)是??(shi)南??(nan)通祝(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(wú)??(wu)砟??(zha)軌??(gui)道??(dao)??，設(shè)??(she)計(jì)??(ji)時(shí)??(shi)速??(su)350公??(gong)里??(li)??，全??(quan)長(zhǎng)??(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(zhǎng)??(chang)932.7米??(mi)??，共??(gong)有??(you)北??(bei)端??(duan)8號(hào)??(hao)主??(zhu)塔??(ta)、南?(nan)端?(duan)9號(hào)?(hao)主??(zhu)塔??(ta)共??(gong)兩??(liang)個(gè)??(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(hào)??(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(zhǎng)??(chang)129.5米??(mi)??，鉆??(zuan)孔??(kong)深??(shen)度??(du)約?(yue)151米?(mi)??，為??(wei)大?(da)直??(zhi)徑??(jing)超??(chao)長(zhǎng)??(chang)鉆??(zuan)孔??(kong)樁??(zhuang)???！ ⊥??(tong)時(shí)??(shi)??，項(xiàng)??(xiang)目??(mu)建??(jian)設(shè)??(she)方??(fang)優(yōu)??(you)化??(hua)施??(shi)工??(gong)工??(gong)序??(xu)??，采??(cai)用??(yong)主??(zhu)籠??(long)、導(dǎo)??(dao)管??(guan)提??(ti)前??(qian)在??(zai)相?(xiang)鄰??(lin)孔??(kong)預(yù)??(yu)拼??(pin)到??(dao)位??(wei)等??(deng)方??(fang)式??(shi)??，節(jié)?(jie)省?(sheng)了??(le)鋼??(gang)筋??(jin)籠??(long)和??(he)導(dǎo)??(dao)管??(guan)下??(xia)放??(fang)、拼??(pin)接??(jie)時(shí)??(shi)間??(jian)??，極??(ji)大??(da)提??(ti)高??(gao)了??(le)施??(shi)工??(gong)效??(xiao)率??(lv)??。??
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