Experimental Study on Highway Tunnel Surrounding Rock Reinforced by Small Pipe Pre-Grouting
Small pipe of staggered by length leading-drilling and grouting support technology was adopted for per-reinforcement of Lion-shaped Tunnel typeII rock, cement paste filled into loose rock mass rock fracture for adglutinate broken rock into a integrality, thus enhance the coherence and solidity of rock. Thesis introduced process flow of small pipe drilling grouting, grouting equipment, grouting parameters selection and practical applications. Through tunnel deformation monitoring and analysis, grouting reinforcement has achieved very good effect.
Guangfan Li, Yong Huang and Chaohe Chen
H. B. Wang et al., "Experimental Study on Highway Tunnel Surrounding Rock Reinforced by Small Pipe Pre-Grouting", Advanced Materials Research, Vols. 250-253, pp. 2617-2621, 2011