A SIMPLE BACK-ANALYSIS IN A SEISMIC SUBSOIL CONTEXT
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概要
- 論文の詳細を見る
This note proposes a numerical procedure in which the material parameters affecting soil dynamics are back-calculated from the acceleration response monitored in the field. By assuming the values of soil parameters, the acceleration response of the dynamical system is calculated by a finite element analysis in time domain. Because the direct comparison in time domain between the calculated and monitored accelerations has less reasonable meaning, the Fourier coefficients both of the accelerations are calculated. And the least squares method is applied to the Fourier coefficients corresponding to the calculated and observed quantities respectively. The formulated problem is successfully solved by mathematical programming technique. As the first phase of the research, the back-analyzed soil parameters are Young's modulus and damping coefficients by assuming the linear elastic behavior and the viscous damping of subsoil. The proposed procedure is applied to hypothetical case studies and its validity is verified. Subsequently the trial application of the procedure to actual case study is discussed which is concerned with the parameter estimation in soil deposit during an earthquake.
- 社団法人地盤工学会の論文
- 1990-12-15
著者
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荒井 克彦
Department Of Architecture And Civil Engineering Fukui University
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近者 淳史
Tobishima Construction Co. Ltd.
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飯田 貴久男
Toyama Branch of NTT Corporation
関連論文
- PARAMETER ESTIMATION OF UNCONFINED AQUIFER BY MEASURING CHANGE OF GROUNDWATER LEVEL
- A LOWER-BOUND APPROACH TO ACTIVE AND PASSIVE EARTH PRESSURE PROBLEMS
- TWO-DIMENSIONAL CONSOLIDATION BACK-ANALYSIS
- A UNIFIED APPROACH TO TIME EFFECTS IN ANISOTROPICALLY CONSOLIDATED CLAYS
- RELATIONSHIP BETWEEN TIME EFFECTS IN TRIAXIAL TEST AND SECONDARY COMPRESSION
- BACK-ANALYSIS OF DEFORMATION AND MOHR-COULOMB STRENGTH PARAMETERS BASED ON INITIAL STRAIN METHOD
- ACTIVE EARTH PRESSURE FOUNDED ON DISPLACEMENT FIELD
- APPLICATION OF BACK-ANALYSIS TO SEVERAL TEST EMBANKMENTS ON SOFT CLAY DEPOSITS
- 地盤の動的物性定数の逆解析(『土質工学会論文報告集』Vol.30,No.4 (1990年12月発行)掲載論文の概要)
- A SIMPLE BACK-ANALYSIS IN A SEISMIC SUBSOIL CONTEXT
- A NEW LIMIT EQUILIBRIUM ANALYSIS OF SLOPE STABILITY BASED ON LOWER-BOUND THEOREM
- INFLUENCE OF STRENGTH ANISOTROPY ON THE SEARCH FOR CRITICAL NONCIRCULAR SLIP SURFACE
- ESTIMATION OF NONLINEAR CONSTITUTIVE PARAMETERS BASED ON MONITORED MOVEMENT OF SUBSOIL UNDER CONSOLIDATION
- ESTIMATION OF SOIL PARAMETERS BASED ON MONITORED MOVEMENT OF SUBSOIL UNDER CONSOLIDATION
- SIMPLE OPTIMIZATION TECHNIQUES FOR EVALUATING DEFORMATION MODULI FROM FIELD OBSERVATIONS
- DETERMINATION OF NONCIRCULAR SLIP SURFACE GIVING THE MINIMUM FACTOR OF SAFETY IN SLOPE STABILITY ANALYSIS
- LIMIT ANALYSIS OF GEOTECHNICAL PROBLEMS BY APPLYING LOWER-BOUND THEOREM
- DETERMINATION OF NONCIRCULAR SLIP SURFACE GIVING THE MINIMUM FACTOR OF SAFETY IN SLOPE STABILITY ANALYSIS