›› 2013, Vol. 34 ›› Issue (S2): 252-256.

• Geotechnical Engineering • Previous Articles     Next Articles

Empirical models of creep settlements of concrete-faced rockfill dam and their applications

LI Shou-ju1，YU Shen1，ZHANG Jun2，TIAN Ze-run1   

  1. 1. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, Liaoning 116024, China; 2. Liaoning Pushihe Pumped Storage Company Limited, Dandong, Liaoning 118000, China
  • Received:2013-03-20 Online:2013-11-11 Published:2013-11-19

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Abstract: Based on the basic characteristics of Merchant, Bergers and Butterfield creep models, three kinds of empirical models for predicting creep settlements of concrete-faced rockfill dam are proposed. Taking Pushihe concrete-faced rockfill dam for example, the sequential placement processes of concrete-faced rockfill dam are simulated by using nonlinear finite element method. The empirical model parameters are determined by using regression analysis procedure according to observed data of creep settlements in-situ. The relationships between creep settlements and times are presented. The engineering practical applications show that the fitting settlements agree well with observed values. The creep settlements of concrete-faced rockfill dam are related to not only times, but also stress state, location and elastic modulus of observing points.

Key words: concrete-faced rockfill dam, creep settlement, empirical model, parameter estimation, engineering application

CLC Number: 

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