高压旋喷处理人工挖孔桩流砂层的应用

The application of high-pressure rotating pile to manage with drift sand stratum in manual-excavation pile Kunming Metallurgy College

本文通过对某砖混住宅人工挖孔桩采用高压旋喷处理流砂层的总结，分析了人工挖孔桩施工产生流土、流砂渗透破坏的水文地质条件，介绍了高压旋喷的设计方法、施工技术参数和处理后的试验检测结果。

Through summarizing the brick-concrete house project which apply high-pressure rotating process to manage with drift sand stratum in manual-excavation pile constructio, analyse thehydrogeological condition to produce drift sand and drift soil seepage failure, and introduce the design method, construction technical parameter and testing results.