一个中墩的价值

• 作 者: 吴宇文
• 机 构: 浙江省绍兴县水利水电建设工程队,
• 出 处: 浙江水利科技
• 发表日期: 1979年02期
• 关键词: 中墩 造桥 跨长 十二条 水平推力 造法 一百六 双跨 允许承载力 地基承载力

我们绍兴县是个水乡,到处河流成网,为了实现农业机械化和队队通汽车,建路和造桥的任务很重。就以新疏浚的十二条河道来说,近期急需要造的桥就有七十多座,其中跨长在四十米以上的有二十多座,最长的达八十米。如果按以往的造法,每座单跨四十米双曲拱桥约需投资四万元,水泥一百二十吨,钢材四吨多;每座单跨五十米双曲拱桥约需投资七万元,水泥一百六十吨,钢材八吨多。若要造单跨八十米拱桥,则所需投资和材料就更为惊人。

We Shaoxing County is a water village, rivers everywhere, in order to achieve mechanization of agriculture and team through the car, road construction and bridge construction task is heavy. For the newly dredged 12 rivers, there are more than 70 bridges in urgent need of construction. Among them there are over 20 bridges spanning over 40 meters and the longest being up to 80 meters. If according to the past practice, each single 40 meters double arch bridge need to invest 40,000 yuan, 120 tons of cement, more than 4 tons of steel; each single 50 meters double curved arch about the need to invest seven One hundred thousand yuan, one hundred and sixty tons of cement, more than eight tons of steel. To create a single span of eighty meters arch bridge, the investment and materials needed even more amazing.