Study On The Assessment Of Building Foundation In The Whole Process From An Energy Consumption And Carbon Emission Perspective

The development of economy and advance of society is silently changing our environment while improving our life. The energy shortage and global warming problem is becoming more and more severe and is threatening human life. As know, the carbon emission of architecture industry constitutes one third of the global carbon emission. The carbon emission reduction in architecture industry is of great urgency.This thesis focuses on the under part of architecture from a whole process view. The energy consumption and carbon emission is divided into four stages:construction material production stage, construction material transportation stage, construction stage, destruction and rejecting material treatment stage. The economic costs of various architecture foundation construction methods are calculated. Together with energy consumptions and carbon emissions, the economic costs are put into Gray Decision Theory to carry out a selection and assessment of these architecture foundation construction methods.As a demonstration, a farm house project in Yuhang district is analyzed. Based on energy consumption, carbon emission and economic cost, The five typical foundation treatment technology ranks as follows:Cement-fly-ash-gravel pile, High pressure jet grouting, Cement deep mixing, Vibroflotation and Sand gravel pile. After that, two engineering projects are calculated to compare the energy consumptions, carbon emissions and economic costs between Bored pile method and Precast tubular pile method. The result shows that Precast tubular pile is better than Bored pile not only in energy consumption and carbon emission, but also in economic cost. It implies that precast assembly construction is promising for its great advantage in architecture industry.With theoretical models and demonstrations, the energy consumptions, carbon emissions and economic costs of foundation treatment methods are analyzed and assessed. It is expected to provide a novel view and routine to the engineers in design and construction process.