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What factors should be considered when selecting a load transfer mechanism for tunnel initial and final linings? 


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When selecting a load transfer mechanism for tunnel initial and final linings, several key factors should be considered. These include the reinforcement concept to improve load transfer in the longitudinal joint using butt-jointed reinforcement , the importance of frictions between segments for controlling bending moment and segment deformation , the influence of elastic modulus and thickness of CFRP on stress transfer in pressure tunnels , and the time-dependent deformation of primary linings due to shotcrete interaction with surrounding rock mass and steel arch frame . Additionally, for water pressure resistance in mined railway tunnel linings, factors such as drainage lining versus waterproof lining and their ultimate water head capacities are crucial considerations . These factors collectively impact the effectiveness and durability of the load transfer mechanisms in tunnel linings.

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The factors to consider for selecting a load transfer mechanism for tunnel linings include shotcrete hardening, rheological properties of rock mass, and structural interaction with steel arch frame.
Factors to consider when selecting a load transfer mechanism for tunnel linings include CFRP elastic modulus and thickness, crucial for optimizing stress distribution and internal water pressure transfer efficiency.
Factors to consider when selecting a load transfer mechanism for tunnel linings include longitudinal force impact, joint opening control, friction between segments, and deformation coordination ability.
Factors to consider when selecting load transfer mechanisms for tunnel linings include water pressure resistance, stress distribution, deformation, crack development, failure modes, and the type of surrounding rock.
Factors to consider when selecting a load transfer mechanism for tunnel initial and final linings include joint design, load-bearing capacity, and the effectiveness of the load introduction system.

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