Treatment and Measurement of Water Inrush during Highway Tunnel Construction
As a special geological condition of highway tunnels,water inrush will cause difficulties in engineering construction technology and management.Unnecessary disputes and management difficulties will emerge when different construction units hold different views about the treatment measures of water inrush,which leads to distributed provisions in the specification and a long treatment period.In view of key problems about the water inrush during highway tunnel construction,including water inrush treatment concept,investigation and estimation,measurement and pricing,and on-site confirmation,this paper systematically sorted out the current regulations and other guiding documents and investigated the treatment methods of tunnel water inrush and reverse slope pumping in China's highway and railway industries.Besides,based on the existing practical experience,this paper pointed out important issues including reasonable labor division that should be considered by development units,investigation and design units,supervision units,and construction units,which can provide a useful reference for the construction management of water inrush treatment in highway tunnels in the future.
tunnel water inrushhydrogeologyreverse slope pumping capacitywater plugging and drainageproject costcontract management