Comparison and selection of long tunnel construction schemes for Guangxi Water Resources Allocation Project around Beibu Gulf
Guangxi Water Resources Allocation Project around Beibu Gulf has 44 water conveyance tunnels with a total length of 167.36km.The terrain and geological conditions are complex.In order to accelerate the construction progress and reduce the construction difficulty of the tunnel,combined with the layout of main tunnel,construction adits are designed to increase the working face and achieve the goal of long tunnel being constructed by short boring length,which is conducive to tunnel ventilation,smoke exhaust,slag discharge,and shorten the construction period.Taking the Zhoucun to Taoyuan tunnel in the Binyang subzone of Guangxi Water Resources Allocation Project around Beibu Gulf as an example,an introduction was made on different tunnel construction methods such as drill-ing and blasting method,TBM method,shield tunneling method,pipe jacking method,and cantilever tunneling ma-chine method.The tunnel construction schemes were compared and selected from the aspects of terrain and geologi-cal conditions adaptability,excavation speed,impact on surrounding buildings,safety and engineering investment.
long tunnelconstruction schemecomparison and selection of schemesGuangxi Water Resources Allo-cation Project around Beibu Gulf
万方数据
维普
