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路基是公路的承重主体。公路路基由宽度、高度和边坡坡度三者所构成。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及其压实的程度。施工准备着重从组织、设备、技术、清理场地、地基处理、试验段的填筑工作着手。对路基范围内的地质、水文情况进行详细调查,通过取样、试验确定其性质和范围,了解附近既有建筑物对特殊土的处理方法。从现有条件出发,改进填土要求和压实条件是保证路基质量最有效和经济的方法。
Subgrade is the main load-bearing road. Highway subgrade by the width, height and slope of the composition of the three. The strength and stability of highway subgrade depend very much on the nature of the subgrade filler and the extent of its compaction. Construction preparation focuses on organization, equipment, technology, clean-up site, foundation treatment, test section of the filling work to start. The geological and hydrological conditions within the subgrade are investigated in detail. The nature and extent of sampling are determined by sampling and testing to understand the treatment method of special soil in existing buildings nearby. From the existing conditions, improving the filling requirements and compaction conditions are the most effective and economical ways to ensure the quality of roadbed.