Terzaghi's principle
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Geomechanics of subsurface water withdrawal and injection Open
Land subsidence and uplift, ground ruptures, and induced seismicity are the principal geomechanic effects of groundwater withdrawal and injection. The major environmental consequence of groundwater pumping is anthropogenic land subsidence.…
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Swelling phenomena and effective stress in compacted expansive clays Open
The central aim of this paper is to discuss the applicability of the effective stress principle as defined by Terzaghi (total stress minus pore-water pressure) to predict the behaviour of expansive clay aggregates. Phenomena occurring betw…
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The enhanced local pressure model for the accurate analysis of fluid pressure driven fracture in porous materials Open
In this paper, we present an enhanced local pressure model for modelling fluid pressure driven fractures in porous saturated materials. Using the partition-of-unity property of finite element shape functions, we describe the displacement a…
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Ultimate seismic bearing capacities and failure mechanisms for strip footings placed adjacent to slopes Open
Assessment of the ultimate bearing capacity of foundations adjacent to slopes is complex as it is highly dependent on the slope geometry and soil properties. Seismic loading may impact both the critical failure mechanism and its associated…
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Measurement and evaluation of the stress sensitivity in tight reservoirs Open
The revised details of SY/T5358—2010 of National Energy Administration Standard from five aspects are put forward, it is aimed at existing flaws of the standard, including measurement procedures, evaluation method and discrimination criter…
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Time‐Dependent Deformations of Sandstone During Pore Fluid Pressure Oscillations: Implications for Natural and Induced Seismicity Open
In tectonically active regions, natural seismicity is often correlated with the seasonal hydrology, suggesting that cyclic loading variations might trigger seismicity. Moreover, recent field observations suggest that cyclic fluid injection…
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Growth model for large branched three-dimensional hydraulic crack system in gas or oil shale Open
Recent analysis of gas outflow histories at wellheads shows that the hydraulic crack spacing must be of the order of 0.1 m (rather than 1 m or 10 m). Consequently, the existing models, limited to one or several cracks, are unrealistic. The…
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Calibration of coupled hydro-mechanical properties of grain-based model for simulating fracture process and associated pore pressure evolution in excavation damage zone around deep tunnels Open
The objective of this paper is to develop a methodology for calibration of a discrete element grain-based model (GBM) to replicate the hydro-mechanical properties of a brittle rock measured in the laboratory, and to apply the calibrated mo…
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Assessment of empirical formulae for determining the hydraulic conductivity of glass beads Open
Empirical formulae are often used in practice to quickly and cheaply determine the hydraulic conductivity of soil. Numerous relations based on dimensional analysis and experimental measurements have been published for the determination of …
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A Theoretical Model to Predict the Critical Hydraulic Gradient for Soil Particle Movement under Two-Dimensional Seepage Flow Open
The soil particle movement under seepage flow is one of the predominant mechanisms responsible for incidents and failures of dams and streambanks. However, little attention has been paid to the critical hydraulic gradient under two-dimensi…
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Field Data Based Method for Predicting Long-Term Settlements Open
The estimation of the long-term foundation settlement in soft soil is very complex, which is attributed to a number of uncertainties associated with various factors, such as: (i) The compressibility parameters obtained in the laboratory fr…
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Monitoring and Predicting the Subsidence of Dalian Jinzhou Bay International Airport, China by Integrating InSAR Observation and Terzaghi Consolidation Theory Open
Dalian Jinzhou Bay International Airport (DJBIA) is an offshore artificial island airport, where the reclaimed land is prone to uneven land subsidence due to filling consolidation and construction. Monitoring and predicting the subsidence …
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Pore-water pressure development in a frozen saline clay under isotropic loading and undrained shearing Open
A systematical testing program on frozen Onsøy clay under isotropic loading and undrained shearing at different temperatures (− 3 ~ − 10 °C), strain rates (0.2~5%/h) and initial Terzaghi effective stress (20~400 kPa) was conducted with the…
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Soil Reinforcement with Geosynthetic for Localized Subsidence Problems: Experimental and Analytical Analysis Open
International audience
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Prediction of Friction Resistance for Slurry Pipe Jacking Open
Friction resistance usually constitutes one of the two main components for the calculation of required jacking force. This paper provides a new approach to predict the friction resistance of slurry pipe jacking. First, the existing predict…
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Bearing Capacity Evaluation of Footing on a Layered‐Soil using ABAQUS Open
In this paper, finite element method (FEM) is applied to calculate bearing capacity of a strip footing on one-layer and two-layer soil. Computations are carried out using commercial finite element software, ABAQUS to assess effect of vario…
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A Finite Element Method Integrated with Terzaghi’s Principle to Estimate Settlement of a Building Due to Tunnel Construction Open
This study presents the application of the finite element method integrated with Terzaghi’s principle. The definition of a model in oedometric or confinement conditions for settlement estimation of a building after the construction of a tu…
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Analytical solution for one-dimensional consolidation of double-layered soil with exponentially time-growing drainage boundary Open
In this article, the exponentially time-growing drainage boundary is introduced to study the one-dimensional consolidation problem of double-layered soil. First, the one-dimensional consolidation equations of soil underlying a time-depende…
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Confined compressive strength model of rock for drilling optimization Open
The confined compressive strength (CCS) plays a vital role in drilling optimization. On the basis of Jizba's experimental results, a new CCS model considering the effects of the porosity and nonlinear characteristics with increasing confin…
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Comparison of Coupled and Uncoupled Consolidation Equations Using Finite Element Method in Plane-Strain Condition Open
In the current paper, the consolidation settlement of a strip footing over a finite layer of saturated soil has been studied using the finite element method. In Biot's coupled consolidation equations, the soil deformation and excess pore p…
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MPeat—A fully coupled mechanical‐ecohydrological model of peatland development Open
Mathematical models of long‐term peatland development have been produced to analyse peatland behaviour. However, existing models ignore the mechanical processes that have the potential to provide important feedback. Here, we propose a one‐…
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2021 Terzaghi Lecture: Geotechnical Systems, Uncertainty, and Risk Open
Risk assessment for large engineered systems involving geotechnical uncertainties—such as dams, coastal works, industrial facilities, and offshore structures—has matured in recent decades. This capability is becoming an ever more pressing …
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Evaluation of hydro-mechano-chemical behaviour of bentonite-sand mixtures Open
Bentonite-sand mixtures are widely used in engineering barrier of deep geological disposal of high-level radioactive nuclear waste and anti-seepage barrier of civil geotechnical engineering. Under the action of groundwater solution infiltr…
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An analytical solution for two-dimensional vacuum preloading combined with electro-osmosis consolidation using EKG electrodes Open
China is a country with vast territory, but economic development and population growth have reduced the usable land resources in recent years. Therefore, reclamation by pumping and filling is carried out in eastern coastal regions of China…
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Face Stability Analysis of Shield Tunnels in Homogeneous Soil Overlaid by Multilayered Cohesive-Frictional Soils Open
In order to better interpret failure features of the failure of soil in front of tunnel face, a new three-dimensional failure mechanism is proposed to analyze the limit support pressure of the tunnel face in multilayered cohesive-frictiona…
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New observational method for prediction of one-dimensional consolidation settlement Open
The Chapman–Richards model is adopted in this paper to best fit the Terzaghi's one-dimensional consolidation curve. The obtained formula fits the theoretical solution well, with a regression coefficient R 2 of 0·9995 and an error of less t…
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The ultimate bearing capacity of shallow strip footings using slip-line method Open
Based on the limit equilibrium theory, an accurate approach is proposed to solve the ultimate bearing capacity of shallow strip footings under general conditions. The foundation soil is considered to be an ideal elastic-plastic material, w…
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Chemo-mechanical coupling constitutive model for chalk considering chalk–fluid physicochemical interaction Open
Chalk shows a pronounced water-weakening effect, which can be attributed to the microscopic physicochemical interactions between the pore fluid and the chalk matrix. In this paper a conceptual elastoplastic model is developed for describin…
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Ultimate Bearing Capacity of Strip Foundations in Unsaturated Soils considering the Intermediate Principal Stress Effect Open
The reasonable determination of ultimate bearing capacity is crucial to an optimal design of shallow foundations. Soils surrounding shallow foundations are commonly located above the water table and are thus in an unsaturated state. The in…
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Evaluation of soil spring methods for response spectrum analysis of pile-supported structures via dynamic centrifuge tests Open
Response spectrum analysis is a linear dynamic method that efficiently determines the maximum response of a structure according to its natural period. It is mainly used as a preliminary design technique in the seismic design of pile-suppor…