Taking the foundation treatment work of the sluice gates in Nianpanshan Water Conservancy and Hydropower Project as an example,the application of long spiral-drilling pressure grouting piles in deep sand and gravel foundation with high groundwater level is explored.The bearing capacity and settlement of the composite foundation of the sluice gates with long spiral-drilling pressure grouting piles are calculated.The experimental pile tests and the actual settlement monitoring data are analyzed.The results show that the long spiral-drilling pressure grouting piles can effectively improve the bearing capacity of the deep sand and gravel foundation and reduce the structure settlement,which is of significant promotion value.
关键词
长螺旋钻孔压灌桩/砂砾石地基/地基承载力/沉降
Key words
long spiral-drilling pressure grouting pile/sand and gravel foundation/bearing capacity of foundation/set-tlement
维普
万方数据