Abstract

Sinkhole is a symptom where the surface area collapses due to lack of supporting power and this is caused by erosion of rocks under the ground or washing away of soil. It is very difficult to say that this sinkhole happening in the downtown is natural but rather resulted from development of underground water, water leakage from the old water pipes buried, and subway construction. As this symptom cannot be predicted visually by looking at the surface it happens unexpectedly and thus has a high possibility of causing a lot of damage. However, active research on developing prevention system by using a special laser video or sound has been carried out. In regards to this, this study suggests methods of preventing downtown sinkhole by analyzing sound. The special feature that classifies sound made from tapping the normal surface and surface of the potential sinkhole is the resonance. If we can have a focused control over these surfaces with high potential of sinkhole we will be able to prevent any accidents taking from this.

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