Method for Measuring Seismic Ground Subsidence via Filling Material Descent
This technology relates to a method for measuring cavities caused by ground subsidence by installing an outer pipe, an inner pipe, and a filling material into a drilled pavement.
Previously, it was difficult to quantitatively measure cavities formed beneath the ground due to events such as earthquakes.
To address this, the technology calculates cavity volume based on the amount of filling material that descends when a cavity occurs, allowing for the quantitative measurement of ground subsidence.
Key Features:
- Drilling the pavement vertically down to the ground level
- Inserting and embedding an outer pipe, which features markings on its sidewall to indicate the height of the filling material, into the drilled pavement
- Filling the outer pipe with filling material up to the marked height and inserting an inner pipe into the top of the outer pipe
- When a cavity occurs due to ground subsidence, the filling material descends to fill the cavity, and the volume of the subsidence is measured accordingly
