大厚度水稳基层一次摊铺碾压成型碾压工艺研究

Study on One-time Paving and Rolling Process of Large-thickness Water Stabilized Base

大厚度水稳基层一次摊铺碾压成型技术具有提高路面基层结构整体性、加快工程进度、节省施工成本的突出优势,而其质量控制的重点和难点在于碾压成型。文章采用不同碾压机械组合和碾压方式,依托大厚度水稳基层试验段工程,对比分析了三种不同碾压方式下的大厚度水稳基层压实度、平整度的质量控制水平。试验段质量检测结果表明:采用双钢轮初压一遍+32T单钢轮振压3遍+37T胶轮搓揉2遍+双钢轮收光1遍的碾压机械组合和碾压方式可以保证理想的压实效果和平整度水平。

The one-time paving and rolling of large-thickness water-stabilized base has the outstanding advantages such as improving the structural integrity of pavement base, speeding up the project pro- gress and saving the construction cost, and the key and difficult points of its quality control are the rolling forming.By adopting the different rolling mechanical combination and rolling methods, relying on the test section engineering of large-thickness water-stabilized base, this article compared and ana- lyzed the quality control level of compaction and flatness of large-thickness water-stabilized base un- der three different rolling modes.The quality inspection results of test section showed that： the rolling mechanical combination and rolling method of one primary rolling by double steel wheel＋ rolling 3 times by 32T single-drum vibration＋ rubbing 2 times by 37T rubber-wheel ＋ one polishing by double steel wheel can guarantee the ideal compaction effect and flatness level. ;