地基处理中后压浆混凝土灌注桩技术应用初探

Application of post grouting concrete pile technology in foundation treatment

以某地基处理项目试验桩工程为依托,对1#、2#混凝土灌注试验桩进行后压浆技术处理,3#、4#混凝土灌注试验桩不进行后压浆处理,做静载对比试验。结果显示,1#、2#桩的承载力明显高于3#、4#桩,说明后压浆混凝土灌注桩可以显著提高地基承载力。

Based on the test pile engineering of a foundation treatment project,the post grouting technology is applied to the concrete cast-in-place test pile 1 and pile 2,and the static load contrast test is carried out on the pile 3 and pile4 without post grouting treatment.According to the static load contrast experiment,the bearing capacity of pile 1 and pile 2 is significantly higher than that of pile 3 and pile 4.It shows that the post grouting concrete pile can significantly improve the bearing capacity of the foundation.