| Creep phenomena have considerable influence on rock engineering. Further research on creep characteristic issue is of great importance in both theory and practice. However, due to the adverse factors such as the complexity of issue and difficulties in carrying out experiment, the research on this issue is still quite inadequate. The paper is supported by Westward traffic construction research item of ministry of communications-"Numerical Emulation Analysis on Siduhe Suspension Bridge's Tunnel-type-anchor". Rock creep and stabilization of tunnel-type-anchor wall rock are studied:1) creep theories in existence are summarized comprehensively and compared. Aim at the Siduhe Bridge, two kinds of creep models(Time hardening form and Kelvin-Voigt) are adopted and the parameters in models are fitted according to the creep experiment results; 2) Based on the two models, ABAQUS is applied to respectively carry out viscoelastomeric analysis of Siduhe bridge tunnel-type-anchor wall rock at two levels: (1) Rock stand surface level: most primary strain, displacement along the bridge and most primary stress of rock at different times is gained; (2) manipulative spot level: firstly, most primary stress, most primary strain and vertical displacement of five relevant manipulative spots are gained. Afterwards, strain-time and displacement-time curve of one spot are worked out; 3) based on the above work, analytical results based on the two models are contrasted. Subsequently, the effect of models on results is analyzed. The research productions in this paper directly provide reliable reference for safe degree evaluation of Siduhe suspension bridge tunnel-type-anchor-system.
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