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公路路基的强度和稳定性很大程度取决于路基填料的性质、压实时的含水量及其压实的程度。路基工程性质除受土体本身具有不均匀性的特点影响之外,还有在投入使用过程中受环境条件变化的影响,因此是1个非常复杂的实际工程难题,特别是对于细粒土。目前,我国公路早期病害严重,除施工原因外,现行路基压实标准不当也是原因之一。本文以不同特性的土样为研究对象,进行室内试验,研究细粒土的特征参数与其对应的回弹模量之间的关系,为路基施工提供更加合理的控制依据。
The strength and stability of highway subgrade depend largely on the nature of the subgrade filler, the water content at compaction and the degree of compaction. Subgrade engineering properties are affected by the heterogeneity of the soil itself, as well as being affected by environmental conditions during its operation. Therefore, it is a very complicated practical engineering problem, especially for fine grained soil. At present, the road disease in our country is very serious at the early stage. In addition to the reasons for the construction, the inappropriate standard of subgrade compaction is also one of the reasons. In this paper, different characteristics of soil samples for the study, the laboratory tests to study the relationship between the characteristic parameters of fine-grained soil and its corresponding resilience modulus, to provide a more reasonable basis for the control of subgrade construction.