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在粉砂土质地带,修建公路,如何保持路基稳定,是个问题。现将我们采取的办法介绍于下:一、新建的粉砂土路基不宜填土过高,一般高出地面0.3～0.5米为宜。在这种填土高度内,地面下毛细水能够作用到路基土壤内,使路基保持适量的湿度。尤其在多风砂地带,低填路基粉砂土,不易被大风吹跑,始终保持稳定。例如睢宁至宿迁县的皂河公路睢宁段8k 至16k+60,全部为粉砂土低填路基,常年路基的保持适量湿度,几年来路基使用情况很好。二、对已修成粉砂土路基防治冲坏办法:
In the silty soil zone, the construction of roads, how to maintain the stability of the roadbed is a problem. Now we take the approach introduced in the next: First, the new silt subgrade should not fill too high, generally higher than the ground 0.3 to 0.5 meters is appropriate. Within this filling height, capillary water under the ground can act in the subgrade soil, allowing the subgrade to maintain a moderate amount of humidity. Especially in the windy sand zone, low-filled silt subsoil is not easy to run by strong winds and always maintains a stable condition. For example, from Suining to Suqian County Suining Section Suining section 8k to 16k +60, all for silt sand low embankment, perennial subgrade to maintain the appropriate amount of humidity, the subgrade use in recent years is very good. Second, have been built into silt sand embankment prevention and control methods: