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In China, several expressways have been designed as prefabricated box culverts with hinge connections, which have different structural features from the prefabricated culverts in other countries. The ...
Part of Portsmouth Street in Concord is closed as work continues on a bridge across from the lot of the Society of N.H. Forests. Credit: GEOFF FORESTER / Monitor staff The City Beat is a free Monday ...
With the construction of more and more karst tunnels, the problem of tunnel leakage has become a big problem for countless tunnel builders. The leakage of tunnel water will cause lining corrosion, ...