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当水土流失、河道淤塞成为环境问题时,高速公路建设的大量取土,尤其是在土资源缺乏的地域取土已成为较大的环境问题。而在高速公路施工时,合理地利用当地河道中的砂作为筑路材料一方面疏通了河道,另一方面又减少了对有限土地资源尤其是良田的占用。文章结合京福国道主干线乐温高速公路填砂路基的施工实践,探讨填砂路基施工工艺、方法以及过程质量控制。
When soil erosion and river channel blockage become environmental problems, a large amount of earth-borne soil for highway construction, especially for areas where soil resources are scarce, has become a major environmental issue. In highway construction, the rational use of sand in the local river channel as a road construction material on the one hand to clear the river, on the other hand reduce the limited land resources, especially the occupation of fertile land. In this paper, the construction practice of sand filling embankment of Le Wen Expressway on the main line of Beijing - Fuzhou National Road is discussed to discuss the construction technology, method and process quality control of sand filling roadbed.