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Earthquake-induced landslides involve excessive movement of slopes, usually along slip surfaces. This seismic movement of slopes may depend crucially on (a) the soil response along the slip surface, which may include strain softening; (b) the rotation of the sliding mass with displacement towards a gentler configuration; and (c) the dynamic response of the soil profile above the underlying bedrock. Ordinary finite element methods cannot be applied to predict large localized movement along slip surfaces. Even though effects (a)–(c) above have been studied in the bibliography, a cost-effective method for simultaneous simulation to predict the seismic displacement along slip surfaces has not been found in the bibliography. The present work proposes such a cost-effective method. For this purpose, first a new sliding element is introduced which simulates effects (a) and (b) above. For effect (b), a new empirical expression is proposed and validated, while effect (a) is simulated by a previously proposed constitutive model. Then, this element replaces the slip-stick constant resistance element at a previously proposed one-dimensional non-linear dynamic model. A numerical solution of the new model is developed and applied at the well-documented Nikawa landslide. The application illustrated that the method is able to predict the displacement of the landslide, as well as the manner that (i) the stiffness of the soil profile, (ii) the shear stress–displacement response along the slip surface, and (iii) the rotation of the sliding mass affect this displacement.
Baofeng Di; Loukas Katsenis; Constantine A. Stamatopoulos; Vassilis P. Panoskaltsis. Sliding element simulating the response of slip surfaces and its application for the prediction of earthquake-induced landslide movement using one-dimensional dynamic analyses. Landslides 2021, 18, 2297 -2307.
AMA StyleBaofeng Di, Loukas Katsenis, Constantine A. Stamatopoulos, Vassilis P. Panoskaltsis. Sliding element simulating the response of slip surfaces and its application for the prediction of earthquake-induced landslide movement using one-dimensional dynamic analyses. Landslides. 2021; 18 (6):2297-2307.
Chicago/Turabian StyleBaofeng Di; Loukas Katsenis; Constantine A. Stamatopoulos; Vassilis P. Panoskaltsis. 2021. "Sliding element simulating the response of slip surfaces and its application for the prediction of earthquake-induced landslide movement using one-dimensional dynamic analyses." Landslides 18, no. 6: 2297-2307.
Debris flow susceptibility mapping is considered to be useful for hazard prevention and mitigation. As a frequent debris flow area, many hazardous events have occurred annually and caused a lot of damage in the Sichuan Province, China. Therefore, this study attempted to evaluate and compare the performance of four state-of-the-art machine-learning methods, namely Logistic Regression (LR), Support Vector Machines (SVM), Random Forest (RF), and Boosted Regression Trees (BRT), for debris flow susceptibility mapping in this region. Four models were constructed based on the debris flow inventory and a range of causal factors. A variety of datasets was obtained through the combined application of remote sensing (RS) and geographic information system (GIS). The mean altitude, altitude difference, aridity index, and groove gradient played the most important role in the assessment. The performance of these modes was evaluated using predictive accuracy (ACC) and the area under the receiver operating characteristic curve (AUC). The results of this study showed that all four models were capable of producing accurate and robust debris flow susceptibility maps (ACC and AUC values were well above 0.75 and 0.80 separately). With an excellent spatial prediction capability and strong robustness, the BRT model (ACC = 0.781, AUC = 0.852) outperformed other models and was the ideal choice. Our results also exhibited the importance of selecting suitable mapping units and optimal predictors. Furthermore, the debris flow susceptibility maps of the Sichuan Province were produced, which can provide helpful data for assessing and mitigating debris flow hazards.
Ke Xiong; Basanta Raj Adhikari; Constantine A. Stamatopoulos; Yu Zhan; Shaolin Wu; Zhongtao Dong; Baofeng Di. Comparison of Different Machine Learning Methods for Debris Flow Susceptibility Mapping: A Case Study in the Sichuan Province, China. Remote Sensing 2020, 12, 295 .
AMA StyleKe Xiong, Basanta Raj Adhikari, Constantine A. Stamatopoulos, Yu Zhan, Shaolin Wu, Zhongtao Dong, Baofeng Di. Comparison of Different Machine Learning Methods for Debris Flow Susceptibility Mapping: A Case Study in the Sichuan Province, China. Remote Sensing. 2020; 12 (2):295.
Chicago/Turabian StyleKe Xiong; Basanta Raj Adhikari; Constantine A. Stamatopoulos; Yu Zhan; Shaolin Wu; Zhongtao Dong; Baofeng Di. 2020. "Comparison of Different Machine Learning Methods for Debris Flow Susceptibility Mapping: A Case Study in the Sichuan Province, China." Remote Sensing 12, no. 2: 295.
In the present work a new cost-effective dynamic method predicting large seismic displacement along slip surfaces is proposed. For this purpose, the 1-D propagation of horizontal shear waves on a soil stratum with a horizontal stick-slip element at some depth is considered. State-of-the-art equations modeling (a) the coupled 1-dimesional dynamic response of soils with slippage both above and below the slip element, (b) the rotation of the sliding mass with displacement effect and (c) the non-linear soil response for both the dry and saturated cases are combined in a unique manner. No other cost-effective dynamic method was found in the bibliography that simulates all the above effects. The new method is applied for some particular geometries for both the linear and non-linear cases. In the linear case the effects of the stiffness of the soil layers both above and below the slip element and of the rotation of the sliding mass on the permanent seismic displacement are illustrated and interpreted. Likewise, in the non-linear case, the effects of (i) the shear modulus degradation in dry soil profiles and (ii) the additional effect of excess pore pressure build-up in saturated soil profiles on the permanent seismic displacement are illustrated and interpreted.
Loukas C. Katsenis; Constantine A. Stamatopoulos; Vassilis P. Panoskaltsis; Baofeng Di. Prediction of large seismic sliding movement of slopes using a 2-body non-linear dynamic model with a rotating stick-slip element. Soil Dynamics and Earthquake Engineering 2019, 129, 105953 .
AMA StyleLoukas C. Katsenis, Constantine A. Stamatopoulos, Vassilis P. Panoskaltsis, Baofeng Di. Prediction of large seismic sliding movement of slopes using a 2-body non-linear dynamic model with a rotating stick-slip element. Soil Dynamics and Earthquake Engineering. 2019; 129 ():105953.
Chicago/Turabian StyleLoukas C. Katsenis; Constantine A. Stamatopoulos; Vassilis P. Panoskaltsis; Baofeng Di. 2019. "Prediction of large seismic sliding movement of slopes using a 2-body non-linear dynamic model with a rotating stick-slip element." Soil Dynamics and Earthquake Engineering 129, no. : 105953.
The paper considers a rigid block on an inclined plane. First, the typical response measured along slip surfaces of sands and clays under both drained and undrained conditions is identified. Then, for any expression simulating this change in shear stress with displacement along the boundary between the block and the plane, the paper derives an equation which predicts the equivalent friction angle which, when applied, computes the same seismic displacement of the block. The paper also proposes, validates and calibrates a simple constitutive equation which simulates the typical shear stress-displacement response measured in ring shear tests for both sands and clays sheared under both drained and undrained conditions. Next, the paper for the constitutive law above simulating the change in shear stress with displacement along the slip surface, derives equations which predict the equivalent friction angle which, when applied, computes the same seismic displacement of the block. Finally, based on these equations, the paper proposes an easy-to-apply methodology predicting the seismic displacement of slopes along slip surfaces with strain softening with the aid of the seismic displacement predicted by the conventional sliding-block model and applies this methodology in order (a) to validate it against results of elaborate numerical analyses and (b) to modify the Ambraseys-Menu expressions predicting the seismic displacement of the conventional sliding-block model for soils exhibiting strain softening.
Constantine A. Stamatopoulos; Baofeng Di; Petros Sidiropoulos; Maria C. Stamatopoulou. The seismic displacement of a block sliding on an inclined plane with resistance varying with the distance moved. Soil Dynamics and Earthquake Engineering 2018, 114, 69 -84.
AMA StyleConstantine A. Stamatopoulos, Baofeng Di, Petros Sidiropoulos, Maria C. Stamatopoulou. The seismic displacement of a block sliding on an inclined plane with resistance varying with the distance moved. Soil Dynamics and Earthquake Engineering. 2018; 114 ():69-84.
Chicago/Turabian StyleConstantine A. Stamatopoulos; Baofeng Di; Petros Sidiropoulos; Maria C. Stamatopoulou. 2018. "The seismic displacement of a block sliding on an inclined plane with resistance varying with the distance moved." Soil Dynamics and Earthquake Engineering 114, no. : 69-84.
Constantine A. Stamatopoulos. Discussion of “Simplified Procedure for Coupled Seismic Sliding Movement of Slopes Using Displacement-Based Critical Acceleration” by Yaser Jafarian and Ali Lashgari. International Journal of Geomechanics 2017, 17, 07017008 .
AMA StyleConstantine A. Stamatopoulos. Discussion of “Simplified Procedure for Coupled Seismic Sliding Movement of Slopes Using Displacement-Based Critical Acceleration” by Yaser Jafarian and Ali Lashgari. International Journal of Geomechanics. 2017; 17 (9):07017008.
Chicago/Turabian StyleConstantine A. Stamatopoulos. 2017. "Discussion of “Simplified Procedure for Coupled Seismic Sliding Movement of Slopes Using Displacement-Based Critical Acceleration” by Yaser Jafarian and Ali Lashgari." International Journal of Geomechanics 17, no. 9: 07017008.
The work considers critical slopes located at regions with high danger and proposes a method which approximately predicts the risk of earthquake-induced excessive movement of these slopes, in the case where relevant soil strength data along their slip surface do not exist. The method utilizes (1) simplified constitutive equations predicting soil response along slip surfaces and (2) a multi-block sliding system model, both recently proposed. It involves the following steps: (a) collect relevant topographic information and laboratory test results of past landslides at the region of interest, (b) (i) analyze the relevant laboratory tests to estimate the soil constitutive parameters and (ii) estimate the mobilized residual soil strength by back analysis of relevant past landslides, (c) select constitutive model parameters for future applications at the region based on step (b) and validate them based on analysis of the triggering of the past landslides and (d) apply the selected constitutive model parameters in critical slopes in the region under consideration to predict not only whether triggering occurs, but also the post-triggering slide deformation. The paper, after describing in detail the proposed method, applies it at the Wenchuan region, where the 12th May 2008 earthquake triggered many landslides. During the application, four ring shear test results and twelve landslides of the 12th May 2008 earthquake were considered. The application was successful and the following were observed: (i) in the back analyses, the multi-block model predicted reasonably well the final configuration of all slides, (ii) apart from two significantly larger back-estimated values of the residual soil strength, small scatter existed in the other back-estimated values and (iii) the selected model parameters were duly validated under step (c). Furthermore, as the back-estimated friction angle of most landslides was less than 18°, and the materials along the slip surface have a Liquid Limit value less than 25 %, it is inferred that some, or all of the slip surface during these slides, was sheared in an undrained manner.
Baofeng Di; Constantine A. Stamatopoulos; Miranda Dandoulaki; Eleni Stavrogiannopoulou; Meng Zhang; Persefoni Bampina. A method predicting the earthquake-induced landslide risk by back analyses of past landslides and its application in the region of the Wenchuan 12/5/2008 earthquake. Natural Hazards 2016, 85, 903 -927.
AMA StyleBaofeng Di, Constantine A. Stamatopoulos, Miranda Dandoulaki, Eleni Stavrogiannopoulou, Meng Zhang, Persefoni Bampina. A method predicting the earthquake-induced landslide risk by back analyses of past landslides and its application in the region of the Wenchuan 12/5/2008 earthquake. Natural Hazards. 2016; 85 (2):903-927.
Chicago/Turabian StyleBaofeng Di; Constantine A. Stamatopoulos; Miranda Dandoulaki; Eleni Stavrogiannopoulou; Meng Zhang; Persefoni Bampina. 2016. "A method predicting the earthquake-induced landslide risk by back analyses of past landslides and its application in the region of the Wenchuan 12/5/2008 earthquake." Natural Hazards 85, no. 2: 903-927.
This article presents an assessment of the effects of pore water pressure generation of the soil foundation on the seismic road embankment response. Numerical simulations were carried out to study the preloading technique as an improvement method for reducing the liquefaction potential and the induced settlements in a sandy soil profile. The analyses showed that the use of preloading reduces the induced settlements mostly because of the increase in lateral confinement in the superficial soil layers that results from an increase of the coefficient of lateral earth pressure at rest (ko). The research also showed that the efficiency of the countermeasure method was limited to cases in which earthquakes produced a liquefaction zone lower than the depth of the overconsolidated soil.
Fernando Lopez-Caballero; Arezou Modaressi-Farahmand-Razavi; Constantine A. Stamatopoulos. Numerical Evaluation of Earthquake Settlements of Road Embankments and Mitigation by Preloading. International Journal of Geomechanics 2016, 16, C4015006 .
AMA StyleFernando Lopez-Caballero, Arezou Modaressi-Farahmand-Razavi, Constantine A. Stamatopoulos. Numerical Evaluation of Earthquake Settlements of Road Embankments and Mitigation by Preloading. International Journal of Geomechanics. 2016; 16 (5):C4015006.
Chicago/Turabian StyleFernando Lopez-Caballero; Arezou Modaressi-Farahmand-Razavi; Constantine A. Stamatopoulos. 2016. "Numerical Evaluation of Earthquake Settlements of Road Embankments and Mitigation by Preloading." International Journal of Geomechanics 16, no. 5: C4015006.
Constantine A. Stamatopoulos. Corrigendum to "Limit sliding-block seismic displacement for landslide triggering along slip surfaces consisting of saturated sand". Soil Dynamics and Earthquake Engineering 79 (2015) 265–277. Soil Dynamics and Earthquake Engineering 2016, 87, 181 -182.
AMA StyleConstantine A. Stamatopoulos. Corrigendum to "Limit sliding-block seismic displacement for landslide triggering along slip surfaces consisting of saturated sand". Soil Dynamics and Earthquake Engineering 79 (2015) 265–277. Soil Dynamics and Earthquake Engineering. 2016; 87 ():181-182.
Chicago/Turabian StyleConstantine A. Stamatopoulos. 2016. "Corrigendum to "Limit sliding-block seismic displacement for landslide triggering along slip surfaces consisting of saturated sand". Soil Dynamics and Earthquake Engineering 79 (2015) 265–277." Soil Dynamics and Earthquake Engineering 87, no. : 181-182.
The Eastern Thessaly Plain presents an area of severe settlement phenomena, owing to the over-exploitation of the underground aquifer systems, causing significant damages to national infrastructures and private properties annually. Herein, both Persistent Scatterers (PS) and Small Baselines (SB) interferometric techniques were applied to study the history of ground deformation along the entire plain. Although the area consisted mostly of agricultural land, a sufficient number of point targets was obtained, well-distributed over the entire plain, permitting the recognition of spatial variations of the displacement field in addition to temporal trends. Our findings outline the southern part of the basin as the mostly affected area, whereas local subsidence patterns of lower magnitude were also recognized elsewhere. Episodes of significant ground subsidence, reaching several centimetres within a few months, characterize the deformation pattern of the area. Although average ground deformation rates do not exceed 2 cm year−1, line-of-sight (LOS) displacements of up to 13 cm were observed, occurring during the summer–autumn periods. A geographic information system (GIS)-based post-processing approach for the analysis of synthetic aperture radar (SAR) time series is presented, by which these abrupt settlement episodes can be identified in both temporal and spatial domains. The analysis allows the separation between rapid subsidence phenomena during the summer–fall season and annual deformation rates, thereby providing valuable information regarding the actual deformation pattern of the area. The results confirm in situ geological observations, highlighting the unique behaviour of the area due to intense water pumping. The study underlines that average SAR displacement rate maps might be inadequate to describe complex deformation scenarios and could lead to misinterpretations. Exploitation of the full capacity of SAR time series by detailed examination of the displacement histories, through a tailored data-mining strategy, could provide valuable information to geotechnical engineers and planners.
Michael Foumelis; Elena Papageorgiou; Constantine Stamatopoulos. Episodic ground deformation signals in Thessaly Plain (Greece) revealed by data mining of SAR interferometry time series. International Journal of Remote Sensing 2016, 37, 3696 -3711.
AMA StyleMichael Foumelis, Elena Papageorgiou, Constantine Stamatopoulos. Episodic ground deformation signals in Thessaly Plain (Greece) revealed by data mining of SAR interferometry time series. International Journal of Remote Sensing. 2016; 37 (16):3696-3711.
Chicago/Turabian StyleMichael Foumelis; Elena Papageorgiou; Constantine Stamatopoulos. 2016. "Episodic ground deformation signals in Thessaly Plain (Greece) revealed by data mining of SAR interferometry time series." International Journal of Remote Sensing 37, no. 16: 3696-3711.
Constantine A. Stamatopoulos. Erratum to “Constitutive and multi-block modeling of landslides on saturated sands along slip surfaces” [Soils Found. 55 (4) (2015) 703–719]. Soils and Foundations 2015, 55, 1519 .
AMA StyleConstantine A. Stamatopoulos. Erratum to “Constitutive and multi-block modeling of landslides on saturated sands along slip surfaces” [Soils Found. 55 (4) (2015) 703–719]. Soils and Foundations. 2015; 55 (6):1519.
Chicago/Turabian StyleConstantine A. Stamatopoulos. 2015. "Erratum to “Constitutive and multi-block modeling of landslides on saturated sands along slip surfaces” [Soils Found. 55 (4) (2015) 703–719]." Soils and Foundations 55, no. 6: 1519.
Highlights•An equation predicting when enormous seismic displacement occurs is derived.•It is based on the sliding-block model and a recently proposed constitutive model.•Based on this, a method is proposed to predict when landslide triggering along any slip surface occurs.•The method was applied successfully in four well-documented earthquake-induced slides. AbstractSlopes consisting of saturated sand have recently moved rapidly down-slope tens or hundreds of meters as a result of the action of earthquakes. In the seismic risk assessment of such slopes, typically the conventional sliding-block model is utilized. However, this model assumes constant strength along the slip surface and predicts co-seismic displacement, which typically is less than tens of centimeters. The landslide risk described above is associated with post-seismic very large displacement. It occurs when static failure occurs, as a result of loss of soil strength, under the applied earthquake loading. The paper first derives simple analytical expressions predicting when enormous displacement may occur along a planar homogeneous slip surface of saturated sand during earthquakes. For this purpose, the sliding-block model and a recently proposed simple constitutive model simulating saturated sand response along a slip surface are utilized. The paper then validates the proposed analytical expressions by extensive parametric numerical analyzes using the sliding-block model with the proposed constitutive model, and based on these analytical expressions, proposes an easy-to-apply method predicting earthquake-induced landslide triggering of any potentially two-dimensional unstable mass along slip surfaces consisting of saturated sand. Finally, the proposed equations and method are applied (a) to predict the observed triggering of four well-documented earthquake-induced landslides and (b) to establish relations giving characteristics of the seismic motion causing triggering of landslides.
Constantine A. Stamatopoulos. Limit sliding-block seismic displacement for landslide triggering along slip surfaces consisting of saturated sand. Soil Dynamics and Earthquake Engineering 2015, 79, 265 -277.
AMA StyleConstantine A. Stamatopoulos. Limit sliding-block seismic displacement for landslide triggering along slip surfaces consisting of saturated sand. Soil Dynamics and Earthquake Engineering. 2015; 79 ():265-277.
Chicago/Turabian StyleConstantine A. Stamatopoulos. 2015. "Limit sliding-block seismic displacement for landslide triggering along slip surfaces consisting of saturated sand." Soil Dynamics and Earthquake Engineering 79, no. : 265-277.
C.A. Stamatopoulos; F. Lopez-Caballero; A. Modaressi-Farahmand-Razavi. The effect of preloading on the liquefaction cyclic strength of mixtures of sand and silt. Soil Dynamics and Earthquake Engineering 2015, 78, 189 -200.
AMA StyleC.A. Stamatopoulos, F. Lopez-Caballero, A. Modaressi-Farahmand-Razavi. The effect of preloading on the liquefaction cyclic strength of mixtures of sand and silt. Soil Dynamics and Earthquake Engineering. 2015; 78 ():189-200.
Chicago/Turabian StyleC.A. Stamatopoulos; F. Lopez-Caballero; A. Modaressi-Farahmand-Razavi. 2015. "The effect of preloading on the liquefaction cyclic strength of mixtures of sand and silt." Soil Dynamics and Earthquake Engineering 78, no. : 189-200.
A multi-block sliding model has been proposed in order to simulate the actual geometry of landslides and their rotation with displacement. The governing equation of motion was formulated with the force equilibrium approach and solved by numerical integration in terms of time. The present work derives the formulation of the multi-block model based on another perspective, the energy conservation principle. This approach, in contrast to the force equilibrium approach, has the ability to derive analytical equations predicting the distance moved of masses sliding with resistance exhibiting both cohesional and frictional components. The most general geometry, where analytical solution predicting post-failure displacement can be obtained, is considered. Then, and as this equation is complex, a simple special case geometry is considered in order to derive easy-to-apply simple expressions which predict post-failure landslide displacement in terms of soil resistance and geometric parameters of the sliding mass. The accuracy of this approximate for general geometries expression is validated by extensive parametric analyses.
Constantine A. Stamatopoulos; Baofeng Di. Analytical and approximate expressions predicting post-failure landslide displacement using the multi-block model and energy methods. Landslides 2015, 12, 1207 -1213.
AMA StyleConstantine A. Stamatopoulos, Baofeng Di. Analytical and approximate expressions predicting post-failure landslide displacement using the multi-block model and energy methods. Landslides. 2015; 12 (6):1207-1213.
Chicago/Turabian StyleConstantine A. Stamatopoulos; Baofeng Di. 2015. "Analytical and approximate expressions predicting post-failure landslide displacement using the multi-block model and energy methods." Landslides 12, no. 6: 1207-1213.
The paper first proposes and validates a constitutive model simulating the change of resistance along slip surfaces in sands both for the undrained and drained cases, measured in ring shear tests. The proposed model is based on (a) the critical state theory and (b) the assumption that the critical state changes as a result of grain crushing, in terms of shear displacement. Model parameters depend only on sand type. Then, the developed constitutive model is implemented in the recently-proposed multi-block sliding system model for the prediction of the triggering and deformation of earthquake-induced landslides. The improved model is applied successfully at a simple slope and at the well-documented Nikawa slide triggered by the 1995 Hyogoken-nambu earthquake. Parametric analyses illustrated the ability of the improved model to simulate the effect of the applied motion, sand density, saturation conditions and geometric rearrangement on the seismic displacement of slopes
Constantine Stamatopoulos. Constitutive and multi-block modeling of landslides on saturated sands along slip surfaces. Soils and Foundations 2015, 55, 703 -719.
AMA StyleConstantine Stamatopoulos. Constitutive and multi-block modeling of landslides on saturated sands along slip surfaces. Soils and Foundations. 2015; 55 (4):703-719.
Chicago/Turabian StyleConstantine Stamatopoulos. 2015. "Constitutive and multi-block modeling of landslides on saturated sands along slip surfaces." Soils and Foundations 55, no. 4: 703-719.
Issaak Parcharidis; Michael Foumelis; George Benekos; Penelope Kourkouli; Constantine Stamatopoulos; Salvatore Stramondo. Time series synthetic aperture radar interferometry over the multispan cable-stayed Rio-Antirio Bridge (central Greece): achievements and constraints. Journal of Applied Remote Sensing 2015, 9, 96082 .
AMA StyleIssaak Parcharidis, Michael Foumelis, George Benekos, Penelope Kourkouli, Constantine Stamatopoulos, Salvatore Stramondo. Time series synthetic aperture radar interferometry over the multispan cable-stayed Rio-Antirio Bridge (central Greece): achievements and constraints. Journal of Applied Remote Sensing. 2015; 9 (1):96082.
Chicago/Turabian StyleIssaak Parcharidis; Michael Foumelis; George Benekos; Penelope Kourkouli; Constantine Stamatopoulos; Salvatore Stramondo. 2015. "Time series synthetic aperture radar interferometry over the multispan cable-stayed Rio-Antirio Bridge (central Greece): achievements and constraints." Journal of Applied Remote Sensing 9, no. 1: 96082.
Constantine A. Stamatopoulos; Baofeng Di. Simplified multi-block constitutive model predicting earthquake-induced landslide triggering and displacement along slip surfaces of saturated sand. Soil Dynamics and Earthquake Engineering 2014, 67, 16 -29.
AMA StyleConstantine A. Stamatopoulos, Baofeng Di. Simplified multi-block constitutive model predicting earthquake-induced landslide triggering and displacement along slip surfaces of saturated sand. Soil Dynamics and Earthquake Engineering. 2014; 67 ():16-29.
Chicago/Turabian StyleConstantine A. Stamatopoulos; Baofeng Di. 2014. "Simplified multi-block constitutive model predicting earthquake-induced landslide triggering and displacement along slip surfaces of saturated sand." Soil Dynamics and Earthquake Engineering 67, no. : 16-29.
Constantine A. Stamatopoulos. Effect of preloading on the amplification characteristics of soil profiles. Soil Dynamics and Earthquake Engineering 2014, 65, 189 -205.
AMA StyleConstantine A. Stamatopoulos. Effect of preloading on the amplification characteristics of soil profiles. Soil Dynamics and Earthquake Engineering. 2014; 65 ():189-205.
Chicago/Turabian StyleConstantine A. Stamatopoulos. 2014. "Effect of preloading on the amplification characteristics of soil profiles." Soil Dynamics and Earthquake Engineering 65, no. : 189-205.
Constantine Stamatopoulos; P. Petridis; M. Bassanou; S. Allkja; N. Loukatos; A. Small. Improvement of dynamic soil properties induced by preloading verified by a field test. Engineering Geology 2013, 163, 101 -112.
AMA StyleConstantine Stamatopoulos, P. Petridis, M. Bassanou, S. Allkja, N. Loukatos, A. Small. Improvement of dynamic soil properties induced by preloading verified by a field test. Engineering Geology. 2013; 163 ():101-112.
Chicago/Turabian StyleConstantine Stamatopoulos; P. Petridis; M. Bassanou; S. Allkja; N. Loukatos; A. Small. 2013. "Improvement of dynamic soil properties induced by preloading verified by a field test." Engineering Geology 163, no. : 101-112.
The sliding-block model is often used for the prediction of permanent coseismic displacements of natural slopes and earth structures. This model assumes motion in an inclined plane but does not consider the decrease in inclination of the sliding soil mass as a result of its downward motion, which is the usual condition in the field. The paper studies the above effect and proposes an empirical equation correcting the predictions of the sliding-block model. The investigation is performed by using a recently developed multiblock model. The equation correcting the predictions of the sliding-block model depends on the slip length, the difference in inclinations of the upper and lower part of the slip surface, the seismic displacement predicted by the sliding-block model and the maximum value of the applied horizontal acceleration.
Constantine A. Stamatopoulos; Constantine Mavromihalis; Sarada Sarma. Correction for Geometry Changes during Motion of Sliding-Block Seismic Displacement. Journal of Geotechnical and Geoenvironmental Engineering 2011, 137, 926 -938.
AMA StyleConstantine A. Stamatopoulos, Constantine Mavromihalis, Sarada Sarma. Correction for Geometry Changes during Motion of Sliding-Block Seismic Displacement. Journal of Geotechnical and Geoenvironmental Engineering. 2011; 137 (10):926-938.
Chicago/Turabian StyleConstantine A. Stamatopoulos; Constantine Mavromihalis; Sarada Sarma. 2011. "Correction for Geometry Changes during Motion of Sliding-Block Seismic Displacement." Journal of Geotechnical and Geoenvironmental Engineering 137, no. 10: 926-938.
Constantine Stamatopoulos. An experimental study of the liquefaction strength of silty sands in terms of the state parameter. Soil Dynamics and Earthquake Engineering 2010, 30, 662 -678.
AMA StyleConstantine Stamatopoulos. An experimental study of the liquefaction strength of silty sands in terms of the state parameter. Soil Dynamics and Earthquake Engineering. 2010; 30 (8):662-678.
Chicago/Turabian StyleConstantine Stamatopoulos. 2010. "An experimental study of the liquefaction strength of silty sands in terms of the state parameter." Soil Dynamics and Earthquake Engineering 30, no. 8: 662-678.