Influence of Red Clay Compaction on the Bearing Characteristics of Piles
In order to study the influence of the compactness of red clay on the bearing characteristics of pile foundations,this article conducted indoor model load tests on pile foundations,and analyzed the performance characteristics of lateral resistance and end resistance of pile foundations under different compaction degrees.The results showed that the load-displacement curve of the test pile as a whole exhibited a steep change,at the beginning of loading,the displacement of the pile top increased slowly with load,showing a nearly horizontal linear increase;The axial force of the pile increased gradually with the increase of load,and gradually decreased with the increase of burial depth;The lateral resistance and end resistance increased continuously with the increase of load,and the growth rate of end resistance was much higher than that of lateral resistance;Under the same level of load,the lateral resistance of the pile body gradually increased with the increase of burial depth;As the load increased;the pile end resistance gradually played a role,and the proportion of load borne also gradually increased;The ultimate bearing capacity of the test pile gradually increased from 86%to 92%with the increase of the compactness of red clay,showing a gradual increase,however,the proportion of load borne by the pile side gradually increased from 54.8%to 67.8%,and the proportion of load borne by the pile end gradually decreased from 45.2%to 32.2%,the ratio of load borne by the pile end to that borne by the pile side also gradually decreased from 0.825 to 0.476.
red claycompaction degreecompressive pilebearing characteristicsmodel test
万方数据
维普
