钢花管注浆法在高速公路路基处治中的应用

Treatment of Roadbed Defects of Expressway Using Perforated Steel Pipe Grouting Technique

针对某高速公路拼宽工程中新旧路基结合处产生纵向裂缝的问题,详细介绍了钢花管注浆在处理该问题中的应用,在实际工程中采用动力触探试验方法对注浆和未注浆区域进行了对比检测,发现钢花管注浆加固路基达到了预期的效果.

Based on the case study of an expressway widening project, which tackles the problem with lengthways fissures emerged along the connecting lines between new and old roadbeds, this paper introduces the grouting technique using perforated steel pipe that is applied in the project. By comparing the treatment results for grouted area and non-grouted area using the dynamic probe method, it is concluded that roadbed reinforcement by means of perforated steel pipe grouting fully measures up to desired technical standards, and the result may serve as a reference for relevant engineering applications.