›› 2017, Vol. 38 ›› Issue (1): 237-246.doi: 10.16285/j.rsm.2017.01.030

• Numerical Analysis • Previous Articles     Next Articles

Inversion of mechanical parameters of super-high arch dam based on deformation monitoring during construction period

FENG Fan1, 2, QIU Xin-jiao2, ZHANG Guo-xin1, GUAN Jun-feng3, WANG Dan3   

  1. （1. State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; 2. Center of Construction Management & Quality & Safety Supervision, The Ministry of Water Resources, Beijing 100038, China; 3. School of Civil Engineering and Communication, North China University of Water Conservancy and Electric Power, Zhengzhou, Henan 450011, China
  • Received:2014-09-01 Online:2017-01-11 Published:2018-06-05
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (51579252), the Key Program of the National Natural Science Foundation of China (51439005), the Young Foundation of the National Natural Science of China (51209094), the National Program on Key Basic Research Project of China (973 Program) (2013CB035904, 2013CB036406,) and the Fund for Outstanding Young Teacher of Higher Education in Henan Province (2013GGJS-084).

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Abstract: To deduce the real mechanical parameters of 300 m super-high arch dam inversely based on the various observation data during construction period, is of great engineering and research significance. In this paper, an inversion hybrid model of super-high arch dam is proposed based on simulating stress during construction period, which aims to deduce the real mechanical parameters inversely based on the vertical compressive deformation of dam and foundation detected in the period of construction. The practicality and feasibility of this model are validated by an case study of Xiluodu super-high arch dam. The elastic modulus of the dam body is inverted based on the observation of precise leveling instrument during construction, and the deformation modulus of its foundation is inverted according to the observation of multi-point extensometer during construction. The results show that the values obtained by the inversion hybrid model agree well with the actual measured elastic modulus and deformation modulus. The results in this current paper can provide research references for similar problem of super-high arch dams.

Key words: super-high arch dam, construction period, observation data, inversion, hybrid model, simulation stress, mechanical parameters

CLC Number: 

  • TV 223

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