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Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
Published on: May 1, 2018
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Construction waste landfill volume estimation using ground penetrating radar
Tianyue Zhang1, Di Zhang2, Dongyang Zheng1
1College of Resources Environment and Tourism, Capital Normal University, Beijing, China.
Summary
Ground penetrating radar (GPR) accurately estimates construction waste depth and volume in underground landfills. This technology aids in effective waste management and environmental protection.
Area of Science:
- Geophysics
- Environmental Engineering
- Waste Management
Background:
- Underground landfills are a common disposal method for construction waste, posing environmental risks.
- Accurate estimation of waste depth and volume is crucial for proper disposal and recycling.
Purpose of the Study:
- To assess the applicability of ground penetrating radar (GPR) for estimating construction waste depth and volume in underground landfills.
- To provide a reliable method for managing and recycling construction waste.
Main Methods:
- Ground penetrating radar (GPR) surveys were conducted to delineate landfill boundaries and map subsurface structures.
- Waste depth was inverted using GPR data and electromagnetic wave velocity, employing the complex refractive index model.
- Spatial interpolation techniques, particularly Kriging, were used for accurate depth estimation.
- Construction waste volume was calculated using numerical integration methods (trapezoid, Simpson, Simpson 3/8 rules) on a 3D model.
Main Results:
- GPR effectively identified boundaries between construction waste and surrounding strata, with generated topography matching actual landforms.
- Depth inversion using GPR data and the complex refractive index model yielded highly accurate results.
- Kriging interpolation proved most accurate for waste depth estimation.
- Numerical integration rules accurately estimated waste volume, and the 3D model precisely represented the landfill structure.
Conclusions:
- GPR technology is a viable tool for assessing underground construction waste landfills.
- Accurate depth and volume estimation using GPR supports improved waste management, recycling, and environmental impact assessment.
- The study offers valuable references for the sustainable management of construction waste.
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