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我国第一座公路粉煤灰加筋挡墙,和黄土加筋高挡墙,于1985年在陕西省延安市郊区姚店蟠龙河边和黄陵县故邑地区建成。1986年5月10日通过省级技术鉴定。姚店粉煤灰加筋挡墙,座落在西安至包头公路(即西包线)375K+400处,地表为第四纪薄层黄土复盖,中生代砂岩区,河床部分为淤积砂层。挡墙一边临河,一边旁山,墙面平整美观,整体结构使用效果良好,外形美观(见图1)。
China’s first highway fly ash reinforced retaining wall, and loess reinforced high retaining wall, in 1985 in Yan’an City, Shaanxi Province, Yao Branch, Beaulieu River and the ancient city of Huangling built area. May 10, 1986 passed the provincial technical appraisal. Yao shop fly ash reinforced retaining wall, located in Xi’an to Baotou Highway (ie, the Western Line) 375K + 400, the surface of the Quaternary thin layer of loess cover, the Mesozoic sandstone area, part of the river bed silt sand. Retaining wall on the side of the river, side of the mountain, the wall smooth appearance, the overall structure of the use of good results, beautiful appearance (see Figure 1).