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大小井特大桥
日期:2020-10-15 14:03:58 访问量:   字号:[ ]  [关闭] 视力保护色:

简介:大(da)(da)(da)(da)小井特(te)大(da)(da)(da)(da)桥(qiao)位(wei)(wei)于罗甸(dian)县大(da)(da)(da)(da)小井风(feng)景区境内,是平塘(tang)至(zhi)罗甸(dian)高(gao)速(su)公路上的(de)控制性(xing)工(gong)程,该桥(qiao)主跨450米(mi),全长1.5公里,是目前世界(jie)上山(shan)区第(di)一跨径的(de)上承式钢管混凝土拱桥(qiao)。大(da)(da)(da)(da)桥(qiao)主拱圈采用无(wu)支架(jia)缆索吊装(zhuang)(zhuang)施工(gong)工(gong)艺,单(dan)肋就位(wei)(wei)安装(zhuang)(zhuang),全桥(qiao)共计58个吊装(zhuang)(zhuang)阶段,节段最大(da)(da)(da)(da)净吊重达160吨,大(da)(da)(da)(da)小井特(te)大(da)(da)(da)(da)桥(qiao)的(de)合(he)龙精度为毫米(mi)级,是贵州造桥(qiao)技术(shu)精湛的(de)又一个集(ji)中缩影。2019年8月16日,平罗高(gao)速(su)大(da)(da)(da)(da)小井至(zhi)通(tong)(tong)州段通(tong)(tong)过(guo)交工(gong)验收并顺(shun)利通(tong)(tong)车,标志着由贵州桥(qiao)梁集(ji)团(tuan)承建的(de)又一座世界(jie)级桥(qiao)梁呈现在世人面前。


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