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为准确反映和评价石料路用性能的优劣,从当前公路实践中出现的几种误区出发,分析了料场选择的关键环节.将XRD技术应用到筑路材料的岩性识别,并结合工程实例介绍了这种方法的实用性和可操作性.认为不能片面追求石料单项指标,应遵循高品质优先原则、定性与定量相结合原则;运用XRD技术有助于提高岩性识别的准确性和料场选择的工作效率;材料路用性能最终体现在各种试验指标是否满足标准要求,当石料不满足某项要求时,可采取必要的技术措施,以避免或降低不利影响.可为公路建设选择优质筑路材料,以及为类似条件下公路料场勘察提供借鉴和参考.
In order to accurately reflect and evaluate the pros and cons of stone road performance, the paper analyzes the key aspects of the yard selection from several misunderstandings in the current highway practice.Combining XRD technology with lithology identification of road construction materials, The practicality and operability of this method are introduced in this paper.It is argued that one-sided pursuit of single indicators of stone should be followed, and the principle of combining high-quality first principles with qualitative and quantitative methods should be followed. The use of XRD technology can help improve the accuracy of lithology identification and The efficiency of materials yard selection; the road performance of materials is finally reflected in whether all kinds of test indexes meet the standard requirements. When the stone does not meet certain requirements, the necessary technical measures can be taken to avoid or reduce the adverse effects. Choose high-quality road construction materials, and provide reference and reference for the survey of highway yard under similar conditions.