Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reliability-Based Design for Allowable Bearing Capacity by Considering Differential Settlement on Highly Fractured Rock Masses
This study addresses the impact of spatial variability of rock masses on the differential settlement between two footings. A simple elastic perfectly plastic model based on the Hoek-Brown criterion and calibrated by a rock mass database is utilized to reproduce the spatial variation of the key rock mass properties in the finite element analyses and to simulate the deformation behavior of rock masses. With Monte Carlo simulations, stochastic samples of load-deformation curves of the two footings are obtained, which are further used to derive reliability-based allowable bearing stresses based on the design criteria of allowable angle of distortion. The analysis results show that the geological strength index (GSI) of rock masses and the uniaxial compressive strength of intact rock are the two dominant factors that affect the reliability-based design. Comparisons to the existing codes show that they are appropriate for poor to fair rock masses, conservative for good to very good rock masses and un-conservative for very poor rock masses.
Reliability-Based Design for Allowable Bearing Capacity by Considering Differential Settlement on Highly Fractured Rock Masses
This study addresses the impact of spatial variability of rock masses on the differential settlement between two footings. A simple elastic perfectly plastic model based on the Hoek-Brown criterion and calibrated by a rock mass database is utilized to reproduce the spatial variation of the key rock mass properties in the finite element analyses and to simulate the deformation behavior of rock masses. With Monte Carlo simulations, stochastic samples of load-deformation curves of the two footings are obtained, which are further used to derive reliability-based allowable bearing stresses based on the design criteria of allowable angle of distortion. The analysis results show that the geological strength index (GSI) of rock masses and the uniaxial compressive strength of intact rock are the two dominant factors that affect the reliability-based design. Comparisons to the existing codes show that they are appropriate for poor to fair rock masses, conservative for good to very good rock masses and un-conservative for very poor rock masses.
Reliability-Based Design for Allowable Bearing Capacity by Considering Differential Settlement on Highly Fractured Rock Masses
Ching, Jianye (Autor:in) / Hu, Yu-Gang (Autor:in) / Yang, Zon-Yee (Autor:in) / Shiau, Jang-Quang (Autor:in)
Georisk 2011 ; 2011 ; Atlanta, Georgia, United States
GeoRisk 2011 ; 178-185
21.06.2011
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
| British Library Conference Proceedings | 2011
ALLOWABLE BEARING CAPACITY OF STRIP FOOTINGS ON JOINTED ROCK MASSES: A RELIABILITY BASED APPROACH
| British Library Conference Proceedings | 2015
Differential settlement of foundation on fractured rock
| British Library Conference Proceedings | 2002
Modelling of fractured rock masses
| British Library Conference Proceedings | 2002
| British Library Conference Proceedings | 1994