论文部分内容阅读
一、調查起因倒虹吸管为鉄路工程中支援农业不可缺少的一項建筑物。近年来,我国农业之发展突飞猛进,新建及增修的倒虹吸管在国內各地鉄路上数量頗多。据反映巳成各綫上倒虹吸工程在使用上多存有严重缺点。鉄道部对壹桥5148鋼筋混凝土圓形倒虹吸管标准图初步設計,亦指示倒虹吸管目前在使用上多存有缺点,鉴定前应提出已成各綫倒虹吸管使用情况調查报告,及新标准图的試制試用报告以求妥善合理。因此,我院于1964年6月至11月,指派专人选定隴海綫张茅至三門峽段、西安至宝鸡段,兰新綫兰州至永登段,兰青綫河口至西宁段等处倒虹吸較为集中的地区,进行了調查研究工作,以备改善今后倒虹吸設計参考之用。
First, the investigation of the cause of inverted siphon Kushiro project supporting agriculture indispensable to a building. In recent years, the development of agriculture in our country has progressed by leaps and bounds. The number of inverted siphons newly built and newly built has been on the road around the country. It has been reported that there have been serious shortcomings in the use of various in-line inverted siphon projects. The preliminary design of the standard road map of Yichu 5148 Reinforced Concrete Circular Inverted Siphon of Yiqiao also indicated that there are many shortcomings in the use of inverted siphon. Before the appraisal, the survey report on the use of inverted siphons in all lines and the new standard map Trial trial report in order to properly and reasonably. Therefore, from June to November 1964, our hospital appointed specialists to select Zhangmen-Sanmenxia section of Longhai Line, Xian-Baoji Section, Lanzhou-Yongding Section of Lanxin Line, Lanzhou-Qinghaihekou-Xining Section, etc. Siphon is more concentrated in the area, conducted a survey and research work in preparation for future reference to improve the design of inverted siphon.