当江河、沟渠、溪涧、山谷阻隔了前进的道路的时候,人们就用桥梁把它连接起来。桥梁便利了交通运输,不仅在人民生活和国家经济建设中非常重要,对国防建设也有着极大的作用。“逢山开路,遇水搭桥”,自古以来就是军事行动中不可缺少的一环。在我国进行现代化的国防建设中,对保证部队和装备行动的道路、桥梁作业要求就更加严格了。现代战争要求桥梁能够通过很大的载重,大大地储短架桥的时间。军用桥梁和民用桥梁在很多地方上是不同的。最突 When rivers, ditches, streams, and valleys block the way forward, people use bridges to connect them. The bridge facilitates transportation and is not only very important in people’s lives and national economic construction, but also has a great role in national defense construction. “Opening the way to the mountains and crossing the water” has been an indispensable part of military operations since ancient times. In our country’s modernization of national defense construction, the requirements for guaranteeing the operation of troops and equipment and roads and bridges have become more stringent. Modern warfare requires that the bridges be able to store the time for bridging the bridges with great loads. Military bridges and civil bridges are different in many places. The most sudden