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一、概 况 水泥灰土稳定砂是一种新的油路基层结构。我队从1980年春开始试验施工,三年来采用水泥灰土稳定砂油路基层结构的共有三十多公里。 我们在铺筑广汕线181公里处1.2公里水泥稳定结构基层时,碰到了不少困难:含水量掌握不好,工地没有进行材料试验,亦无相应的测试手段;压路机辗压时发生推移、陷轮,主要靠间歇施工和控制行车辗压的办法来完成压实;养护工作跟不上,大面积的洒水靠人力肩挑。
First, an overview Cement dust stabilized sand is a new oil road base structure. Our team started the trial construction in the spring of 1980, and a total of more than 30 kilometers of cement sand soil stabilized roadbed structure was adopted in the past three years. We encountered a lot of difficulties when laying the 1.2 km cement stabilized structure at the base of 181 km from the Guangsan line: there is not enough water content to grasp the material test and there is no corresponding test method at the site; Trap, mainly by means of intermittent construction and control rolling to complete the compaction; conservation work can not keep up, a large area of sprinkling by human shoulder.