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首页> 外文期刊>Journal of materials in civil engineering >Highway Subgrade Construction In Expansive Soil Areas
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Highway Subgrade Construction In Expansive Soil Areas

机译：膨胀土地区的公路路基建设

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摘要

Engineering problems with expansive soils in subgrades complicate highway construction in expansive soil areas of China. To research and solve the engineering problems, a Chinese research group carried out extensive research as part of the construction of a highway in Ningming Basin, a typical expansive soil area in China. The research on Ningming expansive soils is presented, including laboratory studies of soil properties, modified California bearing ratio tests for evaluating the bearing capacity, and wet compaction tests for obtaining the parameters to control field compaction when using expansive soils as embankment fill. The field investigations of slope failures also are introduced, including analysis of the investigations. New techniques for using expansive soils in embankments, and stabilizing cut slopes consisting of expansive soils, were developed and applied into the trial sections of the highway by the research group, based on their research and investigations. The measures proved successful and were used to solve the technical problems related to the Nan You Highway subgrade construction. The outcomes of the research also may prove useful in the construction of such projects as railway and hydraulic works.
机译：路基膨胀土的工程问题使中国膨胀土地区的公路建设复杂化。为了研究和解决工程问题，作为宁夏盆地公路建设的一部分，中国研究小组进行了广泛的研究，宁夏盆地是中国典型的膨胀土壤区。介绍了宁明膨胀土的研究，包括对土壤性质的实验室研究，用于评估承载力的改良加州承载比试验以及用于获得参数的湿压实试验，以控制使用膨胀土作为路堤填土时的压实。还介绍了边坡破坏的现场调查，包括调查分析。在研究和调查的基础上，研究小组开发了使用膨胀土在路堤中稳定土坡的新技术，并将其应用于公路试验段。这些措施被证明是成功的，并被用来解决与南有公路路基建设有关的技术问题。研究结果也可能对铁路和水利工程等项目的建设有用。

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