In-plane transversal normal stresses in the concrete face of CFRD induced by the first-dam reservoir filling

doi:10.1007/s11709-016-0378-2

Frontiers of Structural and Civil Engineering

2018, Vol. 12

Issue (1): 81-91 https://doi.org/10.1007/s11709-016-0378-2

本期目录

In-plane transversal normal stresses in the concrete face of CFRD induced by the first-dam reservoir filling

Neftalí SARMIENTO-SOLANO(

), Miguel P. ROMO

1Institute of Engineering, National University of Mexico, Mexico City, 04510, Mexico

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Abstract：

To evaluate the effects of dam height, valley narrowness and width of concrete slabs on the first-dam reservoir filling in-plane transversal normal stresses in the concrete face of CFRD´s, 3D finite difference analyses were carried out. Behavior of rockfill dams considered in this study was defined from the monitoring of a number of 3D sets of pressure cells and extensometers installed in three large dams in Mexico. The 3D analyses results show that high in-plane transversal compressive stresses develop within the concrete panels located in the central concrete face zone upon dam reservoir filling loading. Likewise, in-plane induced tensile transversal stresses in the zones near the abutments increase the potential of slabs cracking and damaging the waterstops in-between the vertical and perimetral joints. From the results of the 3D finite difference analyses, a simple method to estimate in-plane normal stresses in the concrete face is advanced and through comparisons with the results of a 3D case numerical study, its accuracy assessed.

Key words： concrete face CFR dams reservoir filling slab in-plane stresses

收稿日期: 2016-07-07 出版日期: 2018-03-08

Corresponding Author(s): Neftalí SARMIENTO-SOLANO

引用本文:

. [J]. Frontiers of Structural and Civil Engineering, 2018, 12(1): 81-91.
Neftalí SARMIENTO-SOLANO, Miguel P. ROMO. In-plane transversal normal stresses in the concrete face of CFRD induced by the first-dam reservoir filling. Front. Struct. Civ. Eng., 2018, 12(1): 81-91.

链接本文:

https://academic.hep.com.cn/fsce/CN/10.1007/s11709-016-0378-2
https://academic.hep.com.cn/fsce/CN/Y2018/V12/I1/81

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