论文部分内容阅读
在中东,绝大部分都是沙漠地区,在沙漠地区修筑高速公路只能利用砂做填料。砂质松散渗水性好、无粘聚性,内聚力小,抗剪能力差,在外力作用下易产生位移,且沙漠中风沙大,在施工过程中易于遭受大风吹蚀和砂埋,影响路基的压实质量和边坡稳定,可能致使修筑公路无法运营。本文结合沙漠地区高速公路的填砂路基的施工与防护,通过研究路基的填筑工艺,提出了相应路基的施工要点。
In the Middle East, most of them are desert areas. Only the sand can be used as filler in building freeways in the desert. Sandy loose water seepage is good, no cohesion, cohesion is small, shear resistance is poor, easy to produce displacement in the external force, and the desert stroke sand, in the construction process prone to wind gusting and sand burial, the impact of subgrade The quality of compaction and the stability of slopes may render construction roads inoperable. In this paper, the construction and protection of sand-filled subgrade in expressway in desert area are studied. The key construction points of subgrade are proposed by studying the filling technology of subgrade.