摘要
现场碾压工艺是影响级配碎石层压实特性的重要因素。文章基于大量现场跟踪检测数据,研究了级配碎石层碾压过程中混合料空间结构组成、压实度、厚度随碾压遍数增加的变化规律。研究表明,合理的碾压次数能使级配碎石混合料形成"骨架-密实"空间结构体;级配碎石层压实度随碾压次数的增加呈"自然对数式"增长;级配碎石摊铺层越厚越易获得较高的压实度,宜取20 cm。
On-field compaction technology is a important factor that affect the compaction property of unbound aggregate.Based on massive tracking and investigation data, the article studies the composition, compaction degree, thickness of unbound aggregate.The result shows that a reasonable number of times of compaction can help the unbound aggregate form a ＂bone-dense＂ space structure.The compaction degree increases exponentially with the number of times.The thicker of the paving layer, the higher the compaction degree is obtain（optimum level is 20cm）.
出处
《西部交通科技》
2011年第5期30-33,共4页
Western China Communications Science & Technology
关键词
级配碎石
压实特性
研究
Unbound aggregate
Compaction property
Study
