大型承压板复合地基平板载荷试验实践应用

Practice and Application of Plate Load Test for Large-scale Bearing Plate Composite Foundation

鉴于大型承压板复合地基平板载荷试验在实际工程中实践应用不多,积累工程经验较少,通过对复合地基增强体采用等于其分摊面积与少于其分摊面积2种面积的承压板,进行载荷试验时的受力情况进行分析研究,结合实际工程项目中大型承压板复合地基平板载荷试验的实施过程和试验结果进行分析总结,得出对于桩间距较大的复合地基采用与增强体分摊面积相当的大型承压板进行复合地基平板载荷试验的承载力检测结果更加可靠,值得推广应用。

In view of the fact that the large-scale bearing plate composite foundation plate load test is not widely used in practical engi‐neering,and the accumulated engineering experience is less,this paper analyzes and studies the stress situation of the composite foundation reinforcement when using the bearing plate with equal to its apportioned area and less than its apportioned area for load test,combined with the large-scale bearing plate composite foundation plate in the actual engineering project.Based on the analysis and summary of the imple‐mentation process and test results of the load test,it is concluded that for the composite foundation with large pile spacing,the bearing ca‐pacity test results of the composite foundation plate load test by using the large bearing plate with the same area as the reinforcement appor‐tionment are more reliable,which is worthy of popularization and application.