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路基最小填土高度是确保在潮湿的第2第3地带类型条件下,路基能维持基本稳定所必须的重要措施之一,这种措施是一般认为比较经济合理,而且行之有效的办法。但是要定出适合我国具体情况的路基最小填土高度,从而为修正公路设计准则中的填土高度值提供依据,必须通过大量而比较长期的调查研究工作,才可以提出建议值。为此,在58年的基础上,结合路基综合调查,1959年全国各省区又进行了极为广泛的调查工作,大量收集了各个地区不同土类、不同地带类型和不同填
The minimum subgrade fill level is one of the most important measures that must be taken to ensure that the subgrade remains essentially stable under humid Category 2, Zone 3 conditions and is generally considered to be more economical and effective. However, it is necessary to set the minimum embankment height suitable for the specific conditions of our country so as to provide the basis for the amendment of the embankment height value in the highway design guidelines. Only through a large amount of long-term investigation and research work can we propose the recommended values. To this end, on the basis of 58 years and in combination with comprehensive survey of subgrade, 1959 the provinces and autonomous regions throughout the country carried out a very extensive investigation and collected a large number of different types of soil, different types of land and different types of landfill