Settlement prediction for an embankment on soft clay

Müthing, Nina; Zhao, Chenyang; Hölter, Raoul; Schanz, Tom

doi:10.1016/j.compgeo.2017.06.002

Cited by 46 publications

(18 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 3 summarized the engineering properties of the different construction and building materials Thirty brick samples and specimens have been collected from different locations in the structure of Abu Serga church, and the physical and mechanical testing have been achieved in the Laboratory of Building Materials in Faculty of Engineering in Cairo University by the author. The averaged results indicated that; (1) Physical properties, for specific gravity (Gs) it is ranged between 1.8 and 2.0 g/cm 3 Red bricks and the hydraulic mortars were of the most important construction materials used in the Coptic churches including the subject of the present study "Abu Serga church" in the old Cairo. Generally the studied fired brick is formed mainly of quartz and feldspar grains.…”

Section: Engineering Properties Of Building Materialsmentioning

confidence: 85%

“…For Sand Layers: Atterberg limits, liquid limit (WL) = 20, plastic limit (Wp) = 0, dry unit weight γ dry = 18 kN/m 3 By the dewatering project in 2000, differential soil consolidation settlements were recorded between different parts of the subsoil and structures of Abu Serga church and other surrounding churches and chapels in the area. Settlements have been calculated up to 0.9 cm at the areas of filter wall in the old Cairo archaeological area.…”

Section: Geotechnical Conditions and Monitoringmentioning

confidence: 99%

“…Structural damage to the architectural heritage is often caused by the displacement of the earth's soil, its differential settlement, its rotation, or any other effect of the interaction between the structure and the soil. Although it is necessary to examine both the shear resistance and the underlying settlements of any structure, the research is very limited and focuses on mechanisms of failure of superstructures only [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

3D finite element coupled analysis model for geotechnical and complex structural problems of historic masonry structures: conservation of Abu Serga church, Cairo, Egypt

Hemeda

2019

Herit Sci

View full text Add to dashboard Cite

This research presents the damage mechanism of a historical masonry architecture induced by differential settlement based on 3D FE analysis. The purpose of the study was to investigate the behavior fully-saturated soft clays subjected to self-weight loading from an old masonry structure of Abu Serga church which is the oldest church in Egypt dating back to the fifth century A.D and located in old Cairo area in Cairo city. The church gains its high prestige to having been constructed upon the Holy crypt of the Holy Family where they stayed during their sojourn in Egypt. The main objective of the present study is too accurately record and analysis the geotechnical problems and induced structural failure mechanisms observed and calculated in the field, experimental and numerical studies. The land area is also susceptible to floods. Numerical analysis for such geotechnical problems is largely expected to contribute to the conservation of cultural heritages. The present research presents an attempt and pilot study to design the PLAXIS 3D FE model to simulate ground problems, and to distort and analyze the stress of the complex structure of the Abu Serga church, which is loaded on plane level. Plastic modeling or Mohr-Coulomb model in advanced soil was used during the various stages of numerical analysis. Results are recorded and discussed with respect to stress and volumetric behavior of soil. Finally, the study represents the design studies and implementation of the inter-organizational retrofitting intervention and strengthening project for the oldest Coptic church in Egypt.

show abstract

Section: Engineering Properties Of Building Materialsmentioning

confidence: 85%

Section: Geotechnical Conditions and Monitoringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

3D finite element coupled analysis model for geotechnical and complex structural problems of historic masonry structures: conservation of Abu Serga church, Cairo, Egypt

Hemeda

2019

Herit Sci

View full text Add to dashboard Cite

show abstract

“…In this paper, variance‐based (VB) method of GSA is applied to study the model response uncertainty due to input parameters uncertainty. This method has been applied to different engineering problems by Miro et al, Müthing et al, Zhao et al, the total effect index S T i is calculated to show the relative importance of model input parameters. The equation is given as:

S_{T i} = \frac{{((), y_{B} - y_{Ci})}^{T} ((), y_{B} - y_{Ci})}{2_{boldy boldB}^{T}_{boldy boldB} - 2 n {((), {\overset{y}{true}}_{B})}^{2}},

where A and B are two independent ( n , k ) matrices, each contains n random samples of the input parameters vector Z = Z 1 , Z 2 ,…, Z k .…”

Section: Sensitivity Analysismentioning

confidence: 99%

“…In this paper, variance-based (VB) 50 method of GSA is applied to study the model response uncertainty due to input parameters uncertainty. This method has been applied to different engineering problems by Miro et al, 51 Müthing et al, 52 Zhao et al, 53 the total effect index S Ti 54 is calculated to show the relative importance of model input parameters. The equation is given as:…”

Section: Sensitivity Analysismentioning

confidence: 99%

Mechanized tunneling induced ground movement and its dependency on the tunnel volume loss and soil properties

Zhao

Lavasan

Thomas³

et al. 2019

Num Anal Meth Geomechanics

Self Cite

View full text Add to dashboard Cite

Summary This study investigates the ground movements due to mechanized tunnel excavation by applying two‐dimensional finite element analyses. To assess the contribution of the compressibility and plasticity of the soil on the ground movements, different constitutive models are employed to describe the soil behavior. The influence of volume loss around the tunnel on the surface volume loss is investigated, and a quadratic correlation between them is proposed. Consequently, the empirical Gaussian distribution curve, which is generally used to determine the tunneling induced settlement trough, is improved by applying the proposed quadratic correlation between surface volume loss and tunnel volume loss. Furthermore, the settlement trough width parameter has been derived by a linear function of tunnel volume loss as well. The proposed equations are validated via a case study of centrifuge tests from the literature. The results show that the proposed modification enhances the empirical solution by having better knowledge on the model parameters. Additionally, tunnel overburden and coefficient of lateral earth pressure at rest (K0) are taken into account to study their influence on the tunneling induced surface settlements. Finally, global sensitivity analysis is applied to evaluate the relative importance of corresponding model parameters in terms of their influence on the ground movements.

show abstract

3D FE Analysis Model for Geotechnical Problems of Historic Masonry Structures

Hemeda

2018

Advanced Research on Shallow Foundations

View full text Add to dashboard Cite

Settlement prediction for an embankment on soft clay

Cited by 46 publications

References 20 publications

3D finite element coupled analysis model for geotechnical and complex structural problems of historic masonry structures: conservation of Abu Serga church, Cairo, Egypt

3D finite element coupled analysis model for geotechnical and complex structural problems of historic masonry structures: conservation of Abu Serga church, Cairo, Egypt

Mechanized tunneling induced ground movement and its dependency on the tunnel volume loss and soil properties

3D FE Analysis Model for Geotechnical Problems of Historic Masonry Structures

Contact Info

Product

Resources

About