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作为探讨石灰土在道路人工构造物上的应用,用石灰土修筑仰斜式挡土墙的试验研究,已在川云西路试验工程中取得初步成果。今后结合各地的具体情况,进一步加以研究应用,将是一项很有价值的工作。川云西路617.3公里处,原有一座带涵洞的高约8米的浆砌块石挡土墙,1978年被冲毁,形成十余米深的冲沟,危及交通。在路线内移有困难的情况下,确定修筑14米高的浆砌片石挡土墙,以恢复原路。根据地形地质情况,用2米厚混凝土扩大基础,自墙趾往下10米高一段,依地形作成1.5～3.5米宽的浆砌片石护基,总计有圬工一千余立米,投资五万余元。在核准施工后,发现开挖基坑将切去路面的大部,不能保证安全,因而必须将挡土墙外移,这样就使工程量和投资都有较大增加。鉴于该工程在本地区有一定代表性,故选定作石灰土结构试验工程,设计施工均按试验研究的需要进行。
As a study of the application of lime soil on the road artificial structures, the experimental research on the construction of the inverted inclined retaining wall made of lime soil has achieved preliminary results in the pilot project of Chuanyun West Road. In the future, taking into consideration the specific situations in various places, further research and application will be a valuable work. Chuan Yun West Road 617.3 kilometers, the original one with a culvert about 8 meters high masonry stone retaining wall was destroyed in 1978, forming more than 10 meters deep gully, endangering traffic. In the case of difficulties in moving the route, the construction of a 14-meter-high mortar and stone retaining wall to restore the original route. According to the topography and geology, with 2 meters thick concrete to expand the base, from the toe down 10 meters high, according to the terrain made of 1.5 to 3.5 meters wide mortar rubble, a total of more than 1,000 workers in Miriam, 50,000 investment Yu Yuan. After approval of the construction, it was found that excavation of the foundation pit would cut off most of the road surface, failing to guarantee safety, and therefore the retaining wall had to be relocated, thus resulting in a large increase in the project volume and investment. In view of the project in the region has a certain representation, it was selected for the lime-soil structure of the pilot project, design and construction are required by the experimental study.