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在我国已建成的高等级公路中,有些还未达到设计年限就已产生早期破坏,其中有相当一部分是由于路基原因而引起的,如因路基不均匀沉降导致路面局部沉陷及纵向裂缝等。对发生这些问题的原因,应当引起重视,并从试验手段和技术标准方面进行深层次的分析。1.我国土质路基压实控制的方法在我国的《公路路基施工技术规范》(JTJ033—95)中规定,土质路基的压实度应不低于表1标准。从表1可看出,凡适合填筑路基的土,无论
Among the high-grade highways built in our country, some have not yet reached the early design damage, of which a considerable part is caused by subgrade causes such as partial subsidence and longitudinal cracks caused by uneven subgrade settlement. The causes of these problems should be taken seriously, and from the experimental means and technical standards for in-depth analysis. 1. China’s soil embankment compaction control method In our country “Highway Subgrade Construction Technical Specifications” (JTJ033-95) provides that the compaction degree of soil subgrade should not be less than Table 1 standard. As can be seen from Table 1, no matter what the soil is suitable for roadbed filling