Unified Approach toward Evaluating Bearing Capacity of Shallow Foundations near Slopes

Yang, Shangchuan; Leshchinsky, Ben; Cui, Kai; Zhang, Fei; Gao, Yufeng

doi:10.1061/(asce)gt.1943-5606.0002178

Cited by 47 publications

(14 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…e incorporation of rubber makes the interface between rubber and mortar form a transaction zone similar to that between aggregate and mortar. However, the strength of the R-M ITZ zone is lower than that of A-M ITZ and much lower than that of mortar [16,[23][24][25].…”

Section: Constitutive Behavior Of Constituentsmentioning

confidence: 80%

“…Several mesoscale models, considering the mesostructure and the local failure mechanisms in concrete, have been proposed in the last few decades, aiming at a better understanding of structural on the longer-scale response of concrete [14][15][16]. Continuumbased finite element models are the main approaches employed in the literature [17][18][19][20][21][22].…”

Section: Constitutive Behavior Of Constituentsmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Rubberized Self‐Compacting Concrete under Uniaxial Tension by 3D Mesoscale Models

Diao

Wang

Cui

et al. 2020

Advances in Civil Engineering

View full text Add to dashboard Cite

Damage and failure of rubberized self-compacting concrete (RSCC) are studied by mesostructural models. The models include six phases: mortar, aggregates, rubber particles, aggregate-mortar interfacial transaction zones (A-M ITZs), rubber-mortar interfacial transaction zones (R-M ITZs), and voids. Thin layers between mortars and aggregates and between mortars and rubber particles represent A-M ITZs and R-M ITZs, , respectively. Aggregates and rubber particles are modeled with linear elastic, while mortars, A-M ITZs, and R-M ITZs are with different damage-plasticity behaviors. The mesoscale models are validated by the comparison of numerical results and experimental results. The effects of essential phase parameters on the composite’s strength are evaluated, and empirical laws for these effects are established by data regression. It is demonstrated that the effect of porosity, size, and content of rubber particles affect strength and toughness, which provides guidance to the design of such composites for practical applications.

show abstract

Section: Constitutive Behavior Of Constituentsmentioning

confidence: 80%

Section: Constitutive Behavior Of Constituentsmentioning

confidence: 99%

Analysis of Rubberized Self‐Compacting Concrete under Uniaxial Tension by 3D Mesoscale Models

Diao

Wang

Cui

et al. 2020

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…Based on the above analysis, the purpose of this paper is to extend the UBLA method of slope stability with tension crack by Michalowski [5] and Utili and Abd [11] into slopes reinforced with prestressed anchor cables and seismic condition. A rotational failure mechanism (log-spiral surface) was considered to find the critical results [4,[31][32][33][34]. By comparison and analysis of existing slope examples, the correctness and feasibility of the proposed UBLA method have been verified.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Stability of Fissured Slopes Reinforced with Anchor Cables under Seismic Action

Zhang

Jiang

et al. 2021

Mathematical Problems in Engineering

View full text Add to dashboard Cite

Based on the upper bound theorem of limit analysis (UBLA) combined with the pseudostatic methods, this paper elaborates on a calculated procedure for evaluating fissured slope stability under seismic conditions reinforced with prestressed anchor cables. An existing simple slope case is presented as a case study in this work. The comparison is given to verify that the solution derived from this study is correct and feasible. By means of a numerical optimization procedure, the critical location of the crack is determined from the best upper bound solutions. The results demonstrate a significant influence of the depth of crack and seismic acceleration coefficient on the critical location distribution of the cracks. Meanwhile, the axial force of anchor cables is investigated via parametric studies. It is shown that the variation of the crack depth has little effect on the axial force of anchor cables. Moreover, this paper also illustrates the variation in the axial force of anchor cables under the impact of five marked factors (crack depth, anchor arrangement, anchor inclination angle, slope angle, and seismic conditions). Finally, the required critical length of the free section of anchor cables is determined to ensure the stability of fissured slopes subjected to seismic action.

show abstract

“…Bearing capacity and settlement are primary factors in the design of several types of geotechnical structures such as bridge foundations, building foundations close slopes, and roads in mountainous areas. Design of foundations adjacent to soil slopes depends significantly on a variety of factors such as foundation properties (shape, width, and depth), soil mechanical properties (friction angle, shear properties, and density), and distance of a foundation from the soil slope [1][2][3][4][5][6][7]. Since there are many situations where the bearing capacity of the footings adjacent to the sloping surfaces, are significantly reduced from that of footings located on horizontal ground, solutions such as improving the geometry of sloping surfaces, injections, or use of soil reinforcers are required to improve the bearing capacity of foundations under such conditions.…”

Section: Introductionmentioning

confidence: 99%

Bearing Capacity of Shallow Footings Reinforced with Braid and Geogrid Adjacent to Soil Slope

Satvati

Alimohammadi

Rowshanzamir

et al. 2020

Int. J. of Geosynth. and Ground Eng.

View full text Add to dashboard Cite

One of the common features used for improving the bearing capacity of footings adjacent to a soil slope is reinforcement by geosynthetics. These elements may somehow isolate the soil inside of the geosynthetic and eliminate shear-stress mobilization. In this study, a new kind of three-dimensional geosynthetics called expandable braided sleeve (braid) and geogrid have used a laboratory modeling approach to investigate the effects of different variables on the bearing capacity of footings on soil slopes. Some parameters, including relative density and soil compaction, were assumed constant in all tests. In contrast, other variable parameters, including the vertical distance between the surface and the first layer of geosynthetics, the distance of a footing from the slope edge, and planar and tabular shapes of braid and geogrid were investigated. Results demonstrated that for the same conditions of some parameters, cylindrical reinforcement has a more significant effect than the planar form of the reinforcement concerning enhancing bearing capacity and settlement reduction. Inclusion of geosynthetic reinforcement can also reduce stress concentration and distribute the applied load, resulting in settlement reduction. Moreover, braid material was found to result in somehow better performance than geogrids in reducing settlement.

show abstract

Unified Approach toward Evaluating Bearing Capacity of Shallow Foundations near Slopes

Cited by 47 publications

References 25 publications

Analysis of Rubberized Self‐Compacting Concrete under Uniaxial Tension by 3D Mesoscale Models

Analysis of Rubberized Self‐Compacting Concrete under Uniaxial Tension by 3D Mesoscale Models

Investigation on the Stability of Fissured Slopes Reinforced with Anchor Cables under Seismic Action

Bearing Capacity of Shallow Footings Reinforced with Braid and Geogrid Adjacent to Soil Slope

Contact Info

Product

Resources

About