湿陷性黄土地区路基施工技术要点

Key Points of Roadbed Construction Technology in Collapsible Loess Areas

在我国西北存在着大量黄土,在黄土区进行路基工程施工应注意路基的压实。尤其是对于湿陷性黄土,由于其本身的特点,导致在路基修建完成后经常发生路基沉降、路面开裂等病害。在进行湿陷性黄土路基施工时,主要是消除黄土的湿陷性,消除的方法有很多,如灰土挤密桩法、强夯法、冲击碾压法等,上述方法在湿陷性黄土处理中都能起到很好的效果。

There is a large amount of loess in the northwest of China,and special attention should be paid to the compaction of the roadbed during roadbed construction in loess areas.Especially for collapsible loess,due to its inherent characteristics,it often causes diseases such as roadbed settlement and pavement cracking after the completion of roadbed construction.When carrying out the construction of collapsible loess subgrade,the main goal is to eliminate the collapsibility of loess.There are many methods to eliminate it,such as lime soil compaction pile method,dynamic compaction method,impact compaction method,etc.The above methods can all play a good role in the treatment of collapsible loess.