Large-scale Mechanized Construction Technology of Extra-long Highway Tunnel with Full-section Drilling and Blasting
The construction of an extra-long and large cross-section highway tunnel is the key for entire construction period in expressway.To ensure construction quality and improve construction progress,the principles for supporting large-scale mechanized equipment,such as matching with geological conditions,low environmental pollution,performance matching,reliable function,advanced technology,controllable cost,and strong universality,were proposed based on Yangjiawopu Tunnel project of G95 Chengde-Pinggu section of capital ring expressway.The performance and efficiency of mechanical equipment used in drilling and blasting,initial support,inverted arch construction,and secondary lining construction were analyzed.The construction progress of Yangjiawopu Tunnel is one month ahead of schedule after adopting the large-scale mechanized construction technology with drilling and blasting.
roadstunnelsfull sectiondrilling and blasting methodmechanized construction
万方数据
维普
