原位触探法与载荷试验法检测振冲碎石桩复合地基承载力的差值及原因分析

On Errors of Bearing Capacity Measured with In-situ Penetration & Load Tests for Composite Foundation Supported with Vibrofloated Crushed Stone Piles and Its Causes

介绍京唐港务局在住宅建设中 ,地基经振冲碎石桩处理后 ,采用复合地基载荷试验与原位触探两种方法对地基承载力做对比检测。通过检测结果的对比分析 ,初步探讨了原位触探检测结果偏低的原因 。

The Jingdang Port Authority used both load tests and in situ penetration tests in its residential building construction for comparative analyses of the bearing capacities of the composite foundation supported with vibrofloated crushed stone piles. This paper gives an introduction to such tests. By analyzing the testing results, it discusses preliminarily why the resulting values measured with the in situ penetration are likely lower, which presents experience and data for the future foundation improvement and testing efforts at the similar regions.