Evaluation of soil liquefaction potential using energy approach: experimental and statistical investigation

Javdanian, Hamed

doi:10.1007/s10064-017-1201-6

Cited by 46 publications

(12 citation statements)

References 52 publications

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“…Where CRR is the cyclic resistance ratio based on in-situ test data from SPT or CPT tests, and CSR is the cyclic stress ratio (earthquake load) prompted in the soil by seismic tremors. The liquefaction potential index (LPI) evaluates the seriousness of phase transition of soil and consequent surface signs of this physical change, harming this phase change or potential failure of a liquefaction-inclined region [33]. The classification based on the probability of liquefaction by [34] is shown in Table 4.…”

Section: E Liqit Softwarementioning

confidence: 99%

Evaluation on the Soil Flexibility of the Largest HEP Dam Area in East Malaysia using 1-D Equivalent Linear Analysis

Ahmadi¹,

Suhaili²,

Najar³

et al. 2021

International Journal on Advanced Science, Engineering and Information Technology

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This paper presents the evaluation of soil flexibility at the vicinity of the Bakun HEP Dam, the largest in East Malaysia. The dam is located in the Belaga District of Sarawak, approximately 50 km from the active Tubau and Bukit Mersing fault lines. This area experienced earthquakes of magnitudes ranging between 3.5 and 5.4 during the period from 1994 and 2010. This study used global and local earthquake records to evaluate the site-specific seismic hazard using a 1-D equivalent linear analysis. SPT data from 15 boreholes are utilized. Soil flexibility, factor of safety, liquefaction probability and potential index are evaluated to find the ground settlement and soil liquefaction effects. The results show that the ground amplification of Belaga District is between 2.445 and 5.146, while the peak ground accelerations (PGA) at ground surface are at a maximum average of 0.25g PGA. The soil factors for Bakun District range from 2.6 -3.0, for 2% POE in 50 years. This corresponds to a 2475-year return period. The response spectra are found matching with the target design response spectra for Sarawak as reported in the Malaysia National Annex (MS EN 1998-1:2015). The effects of soil liquefaction are found to be insignificant, as a result the nearby Bakun HEP dam is considered safe from any ground settlement. This study highlights the importance of evaluating the ability of new or existing structures in Belaga District to withstand up to 0.25g PGA in case any seismic event should occur in the future.

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Section: E Liqit Softwarementioning

confidence: 99%

Evaluation on the Soil Flexibility of the Largest HEP Dam Area in East Malaysia using 1-D Equivalent Linear Analysis

Ahmadi¹,

Suhaili²,

Najar³

et al. 2021

International Journal on Advanced Science, Engineering and Information Technology

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“…The energy-based database was developed by taking in new test results [8,9,12,28], and these tests were undrained with k p = 0. Whether before or post consolidation, relative density is almost the same for saturated sand under undrained conditions.…”

Section: Energy-based Analysis and Database Buildingmentioning

confidence: 99%

“…With all the research mentioned above, the corresponding database of 217 test results was built containing input parameters, such as initial effective mean confining pressure (σ'm0, kPa), Dr0, kp, Cu, and Cc and target parameter Wliq (J/m 3 ). Since the complex nonlinear relationship remains disputable between FC and Wliq [11,15,28], only the data with FC = 0 were chosen to build the database. With all the research mentioned above, the corresponding database of 217 test results was built containing input parameters, such as initial effective mean confining pressure (σ' m0 , kPa), D r0 , k p , C u , and C c and target parameter W liq (J/m 3 ).…”

Section: Mlp-based and Nf-based Nn Modelmentioning

confidence: 99%

Evaluation of Liquefaction Potential in Saturated Sand under Different Drainage Boundary Conditions—An Energy Approach

Yao

Wang

Liu

et al. 2019

JMSE

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Drainage conditions are supposed to have significant influence on sand liquefaction behavior. An infiltration device was utilized in cyclic triaxial tests to reproduce different drainage conditions by altering dry density of the within silt. Permeability coefficient ratio (kp) was utilized for quantifying the drainage boundary effect. Cyclic triaxial tests were conducted on saturated Fujian standard sand samples. Test results were used to evaluate the liquefaction potential by using the energy approach. It can be concluded that, if kp increases slightly bigger than zero, excess pore water pressure (EPWP) will respond more fiercely, and the dissipated energy that triggers sand liquefaction will be less. By considering kp, an energy-based database was built by taking kp into consideration and different neural network (NN) models were constructed to predict liquefaction potential by energy approaches accurately under different drainage boundary conditions. It was suggested that the neuro-fuzzy (NF)-based NN model has more satisfactory performance.

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“…In more recent studies of soil liquefaction, many scholars have used uniform or uniformly mixed soils as their experimental objects or samples (e.g., Ecemis et al 2015;Mandokhail et al 2017;Javdanian 2019;Dammala et al 2019). In order to determine the liquefaction properties of soils, a number of shaking table liquefaction tests (e.g., Carey et al 2017;Jin et al 2018;Chen et al2019), cyclic triaxial tests (e.g., Pan and Yang 2018;Wang et al 2018) and numerical simulations (e.g., Ye and Wang 2016;Lei and Matthew 2018) were carried out with various forms of soil samples.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on liquefaction and post-liquefaction deformation of stratified saturated sand under cyclic loading

Xiu

Wang

et al. 2019

Bull Eng Geol Environ

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Evaluation of soil liquefaction potential using energy approach: experimental and statistical investigation

Cited by 46 publications

References 52 publications

Evaluation on the Soil Flexibility of the Largest HEP Dam Area in East Malaysia using 1-D Equivalent Linear Analysis

Evaluation on the Soil Flexibility of the Largest HEP Dam Area in East Malaysia using 1-D Equivalent Linear Analysis

Evaluation of Liquefaction Potential in Saturated Sand under Different Drainage Boundary Conditions—An Energy Approach

Experimental investigation on liquefaction and post-liquefaction deformation of stratified saturated sand under cyclic loading

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