Application of Pneumatic Flow Mixing Method to the Reclamation Works
in Central Japan International Airport
A0112Tsuneo Sato Central Japan International Airport Co.,Ltd. Construction Office
A0113Hideo Kato Central Japan International Airport Co.,Ltd. Construction Office
Construction work of Central Japan International Airport was initiated
in August 2000. It will open in March 2005. The shallow water site
offshore Tokoame City in Ise Bay was selected for the airport
Dredged soil from Port of Nagoya is used for reclamation as well as
mountain soil. The reason to use dredged soil is that on one hand it
becomes difficult to obtain mountain soil of good quality but on the
other hand, it becomes difficult to secure disposal site for dredged
soil recently. So if we use dredged soil for reclamation, these two
problems will be solved and at the same time economical reclamation
can be realized.
The dredged soil is delivered by compressed air using "Pneumatic Flow
Mixing Method " which enables preparation of strong ground in a short
period in large scale,through the mixing of the soil and cement slurry
in a pipeline. Here the authors report application of this method to
the reclamation work that was initiated in June 2001.
Through this method, the dredged soil is mixed with the cement slurry
in the pipeline by the turbulent mixing effect of the compressed air.
Therefore the mix-ing device can be minimized and as a result,
economical improvement of dredged soil can be achieved.
The reclamation work of Central Japan International Airport is the
first case of application of this mixing method in large scale. The
result of this mixing method is favorable so far. This mixing method
is expected to be applied to many future land development projects in