Research on a Method of Releasing Pinch Pressure in Collapsed Houses Caused by an Earthquake

―Understanding of the Basic Mechanical Properties Pertaining to “Fracture / Pushing Down of the Lower Side of the Person in Need of Rescuing”―

Abstract

In order to improve rescue activities from collapsed houses caused by earthquakes, rescue organizations such as fire departments and police departments have been studying and verifying ways to quickly and accurately release pressure from a rescuer who is trapped under a beam or other object in a collapsed house. In this study, we conducted a demonstration experiment to understand the basic mechanical properties (slab stiffness) of the floor slab around the rescuer. As a result, five findings that could be useful for improving rescue practice were compiled. The experimental method (test jig, experimental procedure, etc.) developed through this study is expected to provide useful knowledge for further investigation and verification in the future, and is expected to contribute to the reduction of human casualties from collapsed houses caused by earthquakes.