Specifications

Publication year: 2013
Pages: 873-879
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Document type: Journal article (JA)
Publisher: China Water Power Press, no. 1 Xikang Road, Nanjing, 210024, China
Abstract: Duncan-Chang E-B model can reflect the relationship of stress and deformation of
rockfill materials under different confining pressures, therefore it has been widely applied in the
numerical calculation of stress and deformation of the concrete faced rockfill dam. Based on the
orthogonal test method, the concrete faced rockfill dam is taken as examples in this paper to
conduct the sensitivity analysis of Duncan-Chang E-B model parameters, and study the sensitivity
of various parameters to the vertical settlement displacement of the dam and the horizontal
displacement of upstream and downstream. The results of the study show that among the
Duncan-Chang E-B model parameters, the sensitivity of Kb, φ0 and K are relatively large on the
vertical displacement of the dam; φ0, K and Rf have a relatively appreciable influence on the
horizontal displacement of upstream; Kb, φ0 and K have a relatively great influence on the
horizontal displacement of downstream; the value of model parameters have the most significant
effect on the horizontal displacement of upstream; the sensitivity of m, Δφ and n have a relatively
small influence on the results of dam deformation. The research methods and results of this
paper can provide a reference for selecting the Duncan-Chang E-B model parameters of concrete
faced rockfill dam.
Number of references: 13
Main heading: Rock mechanics
Controlled terms: Concretes - Dams - Deformation - Rocks - Sensitivity
analysis - Testing
Uncontrolled terms: Concrete faced rockfill dam - Different confining
pressures - Horizontal displacements - Numerical calculation - Orthogonal test
method - Rock fill materials - Stress and deformation - Vertical displacements
Classification code: 502.1 Mine and Quarry Operations - 481.1 Geology - 441.1
Dams - 921 Mathematics - 422.2 Strength of Building Materials : Test Methods - 421
Strength of Building Materials; Mechanical Properties - 412 Concrete - 422 Strength of
Building Materials; Test Equipment and Methods
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
8.
Accession number: 20133516666508
Title: Research on optimal scheduling of agricultural reservoir group in Shenzhen
Authors: Lu, Shi-bao1, 3 ; Qu, Ji-hong2 ; Liu, Ren-yuan4/;;;
Author affiliation:
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 North China University of Water Resources and Electric Power, Zhengzhou 450011, China