Allowable Height Difference between Adjacent Monoliths with Spherical Surface Key Groove in Transverse Joints

Abstract:

The calculation method of the minimum aperture of transverse joints with spherical surface key groove was introduced in this study. Based on the computation theory of allowable height difference between adjacent monoliths proposed by Bofang Zhu, the analytical model of allowable height difference of Xiluodu arch dam was established with consideration of the effect of main factors on the transverse joints deformation, including the temperature, autogenous volume deformation, self-weight and foundation. After the horizontal and vertical deformations of transverse joints was required, according to the form of spherical surface key groove, the aperture of each part of key groove and the minimum aperture were obtained at several height difference between adjacent monoliths. The allowable height difference was determined on the condition of meeting the grouting requirements of transverse joints. The result shows that the allowable height difference for Xiluodu arch dam should not be more than 30m.

• Periodical: Applied Mechanics and Materials (Volumes 438-439)
• Pages: 624-628
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.438-439.624
• Online since: October 2013
• Authors: Dan Ni Luo, Yu Hu, Qin Bing Li
• Keywords: Height Difference, High Arch Dam, Hydraulic Structure, Key Groove, Transverse Joints

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