石拱桥是我国历史悠久的建筑结构,近年来石拱桥的优越性得以继续发扬,并在现代公路建设中普遍应用。据不完全统计,在我省干线公路上1204座,总长87040米的大、中桥梁中,石拱桥有678座,总长40000米,占46％。在地方支线公路上,石拱桥的比例更大。由于石拱桥具有“就地取材、施工简便、结构耐用、造价低廉”的特点,在地方 Stone arch bridge is China’s historic building structure, in recent years the superiority of stone arch bridge to continue to carry forward, and is widely used in modern highway construction. According to incomplete statistics, there are 6,078 stone arch bridges with a total length of 40,000 meters, accounting for 46% of the total number of large and medium-sized bridges in the province, including 1,204 on the main highway and 87040 meters in length. In the local feeder highway, a larger proportion of stone arch bridge. Because of the stone arch has “local materials, construction is simple, durable structure, low cost,” the characteristics of the place