Abstract Design, construction and monitoring should be taken into consideration during shield tunnelling in order to ensure micro disturbance to the surrounding environment. Under the main runway of an airport, shield tunnelling in soft clay was successfully completed with micro disturbance to the environment due to the help of the numerical analysis of long- and short-term settlements induced by the shield construction and the proposed construction parameters from a test section, a new synchronous grouting slurry with great specific gravity, and real-time automatic scan monitoring with no prism. The results show that the proposed parameters satisfy the requirements of micro disturbance and the runway settlement was under control one year later after adopting the new synchronous grouting slurry.
Abstract：
Design, construction and monitoring should be taken into consideration during shield tunnelling in order to ensure micro disturbance to the surrounding environment. Under the main runway of an airport, shield tunnelling in soft clay was successfully completed with micro disturbance to the environment due to the help of the numerical analysis of long- and short-term settlements induced by the shield construction and the proposed construction parameters from a test section, a new synchronous grouting slurry with great specific gravity, and real-time automatic scan monitoring with no prism. The results show that the proposed parameters satisfy the requirements of micro disturbance and the runway settlement was under control one year later after adopting the new synchronous grouting slurry.
.Application of the Micro-Disturbance Technique for Shield Tunnelling under the Main Runway of an Airport[J] MODERN TUNNELLING TECHNOLOGY, 2016,V53(3): 164-169
2016, Vol. 53 