Development and Application of an Enclosed Demolition Method with Environmental Consideration for High-Rise Buildings

This method features an “enclosed demolition space” constructed on top of the building, where all demolition work is carried out. This helps exclude noise propagation and prevents dust from being scattered throughout the city neighborhood. In addition, it can achieve a better work environment. There are trade-off relations among these factors, so it is important to design natural ventilation appropriately. Two demolition projects helped prove the ability to reduce noise levels (by 20dB), prevent the dispersion of dust (by about 80%) and improve the thermal environment (by minus 2 degree in WBGT).