三九養(yǎng)生堂記者 鄧肯·蓋伊 報(bào)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(qiáng)??(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(hào)??(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(jìn)??(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(dá)??(da)155米??(mi)的??(de)SWDM800大??(da)型??(xing)旋??(xuan)挖??(wa)鉆??(zuan)機(jī)??(ji)??，使??(shi)用??(yong)該??(gai)設(shè)??(she)備??(bei)與??(yu)XR580旋??(xuan)挖??(wa)鉆??(zuan)機(jī)??(ji)接??(jie)力??(li)鉆??(zuan)進(jìn)??(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)??。 同?(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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