论文部分内容阅读
在高原多年冻土区 ,涵洞地基的地温情况与路基的地温情况不同。适用的涵洞形式有 :钢筋混凝土盖板涵、钢筋混凝土框架式盖板涵、钢筋混凝土箱涵、镀锌合金钢波纹管涵。不同形式的涵洞基础埋深有不同要求。涵洞施工原则不同 ,对应的施工季节与施工方法也不同 ,“爆破开挖基坑快速施工技术”值得注意。对多年冻土地区涵洞尚有未解问题。
In the plateau permafrost regions, the ground temperature of culverts is different from the ground temperature of subgrade. Applicable culvert forms are: reinforced concrete culvert, reinforced concrete frame culvert, reinforced concrete box culvert, galvanized steel corrugated pipe culvert. Different forms of culverts have different requirements. The different construction principles of culverts correspond to different construction seasons and construction methods, and the “rapid construction technology of blasting excavation pit” deserves our attention. Culverts in permafrost areas remain unsolved problems.