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浙江省宁波地区的民间桥梁初步统计有七千座,其中有相当数量是木桥和石版桥。目前损毁倒坍的很多,特别是木桥年久腐朽,不堪使用。给群众生产和生活上带来了很多的不便。在当前材料供应不足的时候,如何改造和维修这些桥梁,成为一个迫切需要解决的问题。根据宁波地区情况,我们除了在石料近便的地区修建了一些石拱桥以外,在平原水网地区,我们利用清仓处理的次旧钢轨约一千吨,修建民间桥梁。一九六三年以来,已完成各种钢轨桥二百余座。这些桥梁
There are 7,000 civilian bridges in Ningbo, Zhejiang Province, with a considerable number of wooden bridge and stone bridge. At present, a lot of collapsing damage, especially the wooden bridge long decadent, unbearable use. It has brought a lot of inconvenience to people’s production and life. In the current shortage of materials, how to reform and repair these bridges has become an urgent problem to be solved. According to the situation in Ningbo, apart from some stone arch bridges in the vicinity of the stones, in the plain water network area, we use about 1000 tons of second-aged rails for clearance to construct civil bridges. Since 1963, more than 200 railroad bridges have been completed. These bridges