Instrumented Cone Penetrometer for Dense Layer Characterization
Jong-Sub Lee1, Yong-Hoon Byun2
1School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Korea.
Abstract:
Subsurface characterization is essential for a successful infrastructure design and construction. This paper demonstrates the use of an instrumented cone penetrometer (ICP) for a dense layer characterization at two sites. The ICP consists of a cone tip and rods equipped with an accelerometer and four strain gauges, which allow dynamic driving, in addition to quasi-static pushing of the cone. The force and velocity of the cone are measured using the ICP instrumentation and compared with the N value, dynamic cone penetration index, and static cone resistance. A strong correlation has been observed between the total cone resistance estimated from the ICP and the dynamic cone penetration index and static cone resistance. After the correction of the dynamic cone resistance effect, the static component of the total cone resistance can be used as an alternative to a static cone resistance. This novel approach of soil resistance estimation using the ICP may be useful for dense layer characterization.
Related Concept Videos
Non-destructive Tests for Concrete Strength
Slump Test
Concrete is poured into the mold in three layers to conduct the test. Each layer is compacted 25 times with a steel tamping rod, which has a five-eighths-inch diameter and a rounded end, to ensure even distribution and eliminate...
Vebe Test
To conduct the test, concrete is placed into the slump cone. The concrete is filled in layers and...
Measurement of Air Content in Concrete
The pressure method,...
Compacting Factor test
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
Permeability of Concrete


