Liquefaction Potential Assessment Based on Laboratory Test

Hakam, Abdul; Ismail, Febrin Anas

doi:10.21660/2016.26.5253

Cited by 11 publications

(14 citation statements)

References 9 publications

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“…3 shows the proposed ranges of grain size distribution for potentially liquefiable soil and most liquefiable soil [11]. This chart has been used widely such as [9], [13], [15] and [16] to indicate liquefaction potential. However, this chart limited to clean sand which containing a little or no fine contents.…”

Section: Factors Influencing Liquefaction Resistancementioning

confidence: 99%

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A Liquefaction Resistance of Sand-Fine Mixtures: Short Review with Current Research on Factors Influencing Liquefaction Resistance

Othman

Marto²

2019

IJIE

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Sand is well understood as susceptible material to liquefy under seismic condition. In many cases of liquefaction, the loss of property and damages occurred due to the earthquake phenomenon are caused by sandy soils. Thus, many laboratory experiments and field tests on soil liquefaction engineering have been mandatorily focusing on the liquefaction resistance of sand-fine mixtures. The interaction between sand and fines particles appears to be well studied subject. However, there are some contradictory findings on some factors influencing liquefaction resistance in sand-fine mixtures. Therefore, this paper aim to present results and current findings from previous researchers which focused on sand-fine mixtures using various type of sand to interpret liquefaction resistance and its behaviour. In addition, microstructure test needs to be conducted for verification and analysis of the results on grading and particle sizes characteristics. It has been identified that recent findings on the particle size distribution and grading characteristics of sand in sand-fine mixtures are still contradicting. It has also been found that there are no study using different types of sand to reconstitute tropical sand-fine mixtures; and limited study focused on the coefficient uniformity, CU and coefficient of curvature, CC on liquefaction resistance relationship.

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Section: Factors Influencing Liquefaction Resistancementioning

confidence: 99%

“…On the other hand, some researchers show the D50 of 0.08 mm are more susceptible to liquefy. Evaluation on field case histories of liquefaction potential for 50 years around the world have been figured out by [13] based on research done by [16]. From Fig.…”

Section: Microstructure Of Clay and Sand-fine Mixturesmentioning

confidence: 99%

A Liquefaction Resistance of Sand-Fine Mixtures: Short Review with Current Research on Factors Influencing Liquefaction Resistance

Othman

Marto²

2019

IJIE

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“…In this study, both specimens were tested by using a horizontal uniaxial movement type of shaking table in Soil Mechanic Laboratory of Andalas University [11]. The input motions with varying the frequency of earthquake, such as the Medium earthquake (ME), Strong earthquake (SE), and Very Strong Earthquake (VSE) ( The specimens were tested in three stages.…”

Section: Test Proceduresmentioning

confidence: 99%

Experimental Study on Masonry Building Strengthened With Ferrocement Layers

2018

GEOMATE

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ABSTRACT:In the last ten years, Indonesia has suffered from moderate to severe building damages due to big earthquakes such as Yogyakarta and West Sumatra earthquakes in 2006 and 2009, respectively. Most of the damages are non-engineered buildings such as residential houses and schools, which are unreinforced masonry (URM) buildings made of brick without any reinforcements. These URM constructions are using a half clay thick brick method which is not compatible with the standards. In order to strengthen these URM buildings, a retrofitting method using ferrocement layers has been developed. An experimental study on URM building strengthened by ferrocement layers was conducted. Two specimens of a quarter scale house building models consisted of four walls with size 90cm x 110cm were constructed. The first model (M1) is the original unreinforced masonry structure with mortar plaster, and the second (M2) is the same masonry structure strengthened by providing full ferrocement layers on both sides of the walls which are acting as sandwich structures. Both specimens were tested by using a shaking table (304x190) cm 2 with input motions up to 1g. The test results show that the ferrocement layers can significantly improve the performance of the URM building model and effective in preventing the collapse of masonry walls when it is shaken by earthquakes. It is concluded that this retrofitting model is applicable to retrofit the URM houses in seismic regions.

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“…From the research results, some researchers claim that mean grain size (D 50 ) of 1.0 mm to 0.1 mm causes decreasing in liquefaction resistance, while some researchers show that the D 50 = 0.08 mm is more susceptible to liquefaction. Based on the research done by previous researcher, evaluation on field case histories of liquefaction potential for 50 years around the world have been figured out by [18]. From Figure 1, [18] concluded that about 78 % liquefaction out of 155 incidents occur when the mean grain size, D 50 is lied between 0.113 mm to 0.338 mm.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the research done by previous researcher, evaluation on field case histories of liquefaction potential for 50 years around the world have been figured out by [18]. From Figure 1, [18] concluded that about 78 % liquefaction out of 155 incidents occur when the mean grain size, D 50 is lied between 0.113 mm to 0.338 mm. [17] show that there is no relationship can be concluded between the coefficient of uniformity, C U and coefficient of curvature, C C with the cyclic resistance.…”

Section: Introductionmentioning

confidence: 99%

Influence of Grain Sizes on Undrained Strength of Sand Mixtures

Othman¹,

Marto²,

Pakir³

et al. 2019

IJITEE

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Sand is known as the main material in land reclamation works to develop and widen an area. It is important for the Geotechnical Engineer to ensure the sand used can accommodate the burden imposed from the structures to be built on it. Previous researchers have conducted studies on the strength of sand, whether focusing on the sand itself or with the presence of fines. However, the study of sand grain size effects in sand mixtures in affecting sand behavior is extremely limited. The sizes and angularity of the sand particle are believed to contribute to the behavior of sand mixtures soil. Hence, the study to investigate the effect of sand grain size on sand mixtures in term of undrained strength is being carried out. The sand was sieved to coarse sand, medium sand and fine sand then each size was mixed with kaolin at 0 %, 20 % and 40 %. The undrained strength was obtained from triaxial test on undrained condition. As a result, it is found that the maximum deviator stress, qmax increases with the decrease of fines (kaolin) content. On the other hand, at the same fines content, increased of sand size leads to the increased of qmax, which means the increased of undrained shear strength. In addition, the angular shape of sand particle was thought to contribute to the high value of undrained shear strength for the sand mixtures.

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Liquefaction Potential Assessment Based on Laboratory Test

Cited by 11 publications

References 9 publications

A Liquefaction Resistance of Sand-Fine Mixtures: Short Review with Current Research on Factors Influencing Liquefaction Resistance

A Liquefaction Resistance of Sand-Fine Mixtures: Short Review with Current Research on Factors Influencing Liquefaction Resistance

Experimental Study on Masonry Building Strengthened With Ferrocement Layers

Influence of Grain Sizes on Undrained Strength of Sand Mixtures

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