Specifications

Author affiliation:
1 Institute of Getechnical Engineering, Xi'an University of Technology, Xi'an 710048, China
2 Hydrochina Xibei Engineering Corporation, Xi'an 710065, China
3 Heihe Administration Bureau, Xi'an 710061, China
Corresponding author: He, M. ([e-mail])
Source title: Yantu Lixue/Rock and Soil Mechanics
Abbreviated source title: Rock Soil Mech
Volume: 34
Issue: 1
Issue date: January 2013
Publication year: 2013
Pages: 259-264
Language: Chinese
ISSN: 10007598
Document type: Journal article (JA)
Publisher: Academia Sinica, Wuhan, 430071, China
Abstract: The safety evaluation of high earth core rockfill dam through deformation and
seepage measurement and analysis is one of most important problem in nowdays soil mechanics
at present. Due to the influences of construction method, construction quality and management
during and after construction, the real parameters of the dam become quite different from the
original designing parameters. So it is of great significance to get real parameters and real
running state of the dam based on back analysis in order to evaluate the dam stability exactly and
comprehensively. To get the real mechanics parameters of the dam soils, the investigation on
stress, deformation and seepage behavior by the in-situ measurement in Heihe clay core rockfill
dam in Xi'an are executed based on analysis of the time property and space property. Then the
relationship between the deformation and load is built; and a back analysis method for the soil
parameters during construction and operation based on the theory of nearly saturated soils using
the 3-D finite element simulation is suggested, from which the DUCAN parameters, seepage
coefficients and wetting parameters of the core clay of the dam can be determined directly and
realistically. And the method proposed is useful for design and back analysis of these type
projects.
Number of references: 9
Main heading: Dams
Controlled terms: Deformation - Rock mechanics - Rocks - Seepage - Soil
mechanics - Soils - Wetting
Uncontrolled terms: 3D finite-element simulation - Back analysis - Back analysis
method - Back analysis of displacements - Clay cores - Construction method -
Construction quality - Dam stability - During construction - Earth core - In-situ
measurement - Measurement and analysis - Nearly saturated soils - Observed data -
Rock-fill dam - Safety evaluations - Seepage coefficient - Soil parameters - Time
properties - Wetting parameters
Classification code: 483.1 Soils and Soil Mechanics - 481.1 Geology - 441.1 Dams -
931.2 Physical Properties of Gases, Liquids and Solids - 441 Dams and Reservoirs; Hydro
Development - 421 Strength of Building Materials; Mechanical Properties - 407 Maritime