Abstract
Abstract This paper presents a holistic approach for safety and protection of historical buildings adjacent to tunneling excavation. A finite element model is built to simulate the impact of tunneling excavation on the distribution of structural stress of historical buildings, in order to determine stress concentration regions in materials and structures subjected to forces or loads. Some corresponding reinforcement measures are proposed according to simulative results, aiming to improve its structural integrity and rigidity of historical buildings to satisfy the load-bearing requirements prior to construction. The effectiveness of the adoption of reinforcement measures against tunnel-induced building damage is validated using a two-stage numerical simulation process, where the impact of the tunneling excavation on the deformation of surrounding soils and building foundations is simulated separately, given the reinforcement measures are implemented. A case in relating to the protection of a historical building of Roots’ formal residence (RFR) adjacent to the construction of a twin tunnel, Wuhan Yangtze River Tunnel (WYRT) in China, is presented, where the tunnel in the east line passes under the foundation of RFR, and the nearest receiving shaft foundation in the west line is only 1.4 m away from the building foundation edge of RFR. Results demonstrate the feasibility of the proposed approach, as well as its application potential. The proposed approach can be used as a decision tool to provide some positive guidelines on the protection of historical buildings, and thus increase the likelihood of a successful project in tunneling environments.
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