Some aspects of ‘characterization’ problems in geomechanics

Cividini, Annamaria; Jurina, Lorenzo; Gioda, Giancarlo

doi:10.1016/0148-9062(81)90513-1

Cited by 91 publications

(48 citation statements)

References 5 publications

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“…Some examples of the application of LSE in geomechanical applications include the work of Gioda and Maier [44], Cividini et al [45], Cividini et al [46], Arai et al [47], Arai et al [48], Arai et al [49], Gioda and Sakurai [50], Shoji et al [51], Shoji et al [52], Anandarajah and Agarwal [53], Murakami et al [54], Beck and Woodbury [55], and Xiang et al [56].…”

Section: The Least Square Estimation (Lse)mentioning

confidence: 99%

“…Some examples of optimization algorithms used in geotechnical studies include the Newton method [73], quasiNewton method [53], Gauss-Newton method [56,73], conjugation gradient method [47], simplex method [45,54], complex method [74], random search method [75,76], and more recently evolutionary algorithms, such as the genetic algorithm [77][78][79][80] and the particle swarm optimization method [81].…”

Section: Optimizationmentioning

confidence: 99%

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Nonparametric Monitoring for Geotechnical Structures Subject to Long-Term Environmental Change

Yun

Reddi

2011

Advances in Civil Engineering

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A nonparametric, data-driven methodology of monitoring for geotechnical structures subject to long-term environmental change is discussed. Avoiding physical assumptions or excessive simplification of the monitored structures, the nonparametric monitoring methodology presented in this paper provides reliable performance-related information particularly when the collection of sensor data is limited. For the validation of the nonparametric methodology, a field case study was performed using a full-scale retaining wall, which had been monitored for three years using three tilt gauges. Using the very limited sensor data, it is demonstrated that important performance-related information, such as drainage performance and sensor damage, could be disentangled from significant daily, seasonal and multiyear environmental variations. Extensive literature review on recent developments of parametric and nonparametric data processing techniques for geotechnical applications is also presented.

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Section: The Least Square Estimation (Lse)mentioning

confidence: 99%

Section: Optimizationmentioning

confidence: 99%

Nonparametric Monitoring for Geotechnical Structures Subject to Long-Term Environmental Change

Yun

Reddi

2011

Advances in Civil Engineering

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“…Previously Cividini, et al, [1] suggested a successful approach leading to a comparative study of the rock and tunnel lining behavior and the reality in terms of internal parameters (material properties). The paper presents a discussion on some of the aspects of parameter "characterization" problems (or back analyses) in the field of geomechanics.…”

Section: Introductionmentioning

confidence: 99%

Tunnel face stability as a function of the purchase length

Trckova¹,

Procházka²,

Pešková³

2008

Underground Spaces I

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In geomechanical engineering the stability of the tunnel face appears to be one of the most decisive items in the list of assessments needed for verification of bearing capacity of the system tunnel -surrounding rock. Studies following from on site measurements are very expensive and depend strictly on the nature of material being involved in the study. Experiments conducted on scale models in stands which are filled by physically equivalent materials are more promising and complex, as instrumentation of smaller samples is richer and more flexible than in the case of treatment on real site. Moreover, numerical modeling, which requires a particular description of material behavior of the structures coming into the computational models, can be derived from physical models in an easier way than from real tunnel behavior. A numerical approach is proposed in such a way that internal parameters of a mathematical physically nonlinear model are evaluated using partial results of experimental scale models from equivalent materials. Although basically strongly nonlinear problems are solved, solution of linear algebraic equations is the final step of the approach for identification of values of internal parameters characterizing material properties in mathematical simulation of reality. Tunnel face stability in dependence of a length of work-out space is solved in this paper using coupled modeling, as an example of application of the procedure envisaged.

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“…La méthode de rétro-analyse a été introduite et développée en géotechnique il y a plus d'une vingtaine d'années Cividini et al, 1981 ;Sakurai et Takeuchi, 1983;Gioda et Sakurai, 1987 ;Aku tagawa, 1991 ;Yang, 1996). Mais il reste encore beau coup d'améliorations à attendre, surtout pour les pro blèmes non linéaires.…”

Section: Introductionunclassified

“…Comme l'expression analytique de l'écart F ne peut pas être définie, l'algorithme de minimisation ne doit pas exiger l'évaluation analytique du gradient de la fonction (Cividini et al, 1981). Même si le problème est linéaire, l'écart F défini par l'équation (1) est une fonc tion non linéaire complexe des quantités inconnues (Sakurai et al, 1994).…”

Section: Introductionunclassified

Identification en géotechnique par une méthode basée sur le théorème des travaux virtuels

Deng

Nguyen-Minh

2004

Rev. Fr. Geotech.

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Identification in geotechnical engineering by a method based on the virtual work principle AbstractA new back analysis method based on the virtual work principle is proposed, with establishment of a new identification criterion, the minimization of the error on the virtual work principle. This method is simple and easy to program, efficient and robust. It allows to identify mechanical and loading parameters, and can be applied to non linear elasto-plastic problems. Application of this methode to a history case illustrate its practical feasibility in geotechnical engineering.

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Some aspects of ‘characterization’ problems in geomechanics

Cited by 91 publications

References 5 publications

Nonparametric Monitoring for Geotechnical Structures Subject to Long-Term Environmental Change

Nonparametric Monitoring for Geotechnical Structures Subject to Long-Term Environmental Change

Tunnel face stability as a function of the purchase length

Identification en géotechnique par une méthode basée sur le théorème des travaux virtuels

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