scholarly journals Preliminary study of soil liquefaction hazard at Terengganu shoreline, Peninsular Malaysia

2017 ◽  
Vol 210 ◽  
pp. 012020
Author(s):  
H. Hashim ◽  
M. Suhatril ◽  
R. Hashim
Keyword(s):  
Peninsular Malaysia ◽  
Soil Liquefaction ◽  
Liquefaction Hazard ◽  
Preliminary Study

scholarly journals Probabilistic assessments of soil liquefaction hazard

2008 ◽  
Author(s):  
Tareq Salloum
Keyword(s):  
Soil Liquefaction ◽  
Liquefaction Hazard

scholarly journals Davalliaceae in Peninsular Malaysia, a preliminary study based on trnL-F region

2009 ◽  
Vol 54 (1) ◽  
pp. 203-206 ◽  
Author(s):  
H. Maideen ◽  
R.I. Milne ◽  
M. Gibby
Keyword(s):  
Peninsular Malaysia ◽  
F Region ◽  
Preliminary Study

scholarly journals Assessment of liquefaction hazard along shoreline areas of Peninsular Malaysia

2017 ◽  
Vol 8 (2) ◽  
pp. 1853-1868 ◽  
Author(s):  
Huzaifa Hashim ◽  
Meldi Suhatril ◽  
Roslan Hashim
Keyword(s):  
Peninsular Malaysia ◽  
Liquefaction Hazard

scholarly journals PROTECTION EFFECTS OF BURIED STRUCTURES FROM SOIL LIQUEFACTION HAZARD BY MEANS OF CUTOFF WALLS

2006 ◽  
Vol 62 (1) ◽  
pp. 12-21
Author(s):  
Nobuhiko HAMADA ◽  
Shigeru GOTO ◽  
Hideyuki MANO ◽  
Yuzo OHNISHI
Keyword(s):  
Soil Liquefaction ◽  
Buried Structures ◽  
Liquefaction Hazard ◽  
Cutoff Walls

scholarly journals Introduction and Application of a Simple Probabilistic Liquefaction Hazard Analysis Program: HAZ45PL Module

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Jui-Ching Chou ◽  
Pao-Shan Hsieh ◽  
Po-Shen Lin ◽  
Yin-Tung Yen ◽  
Yu-Hsi Lin
Keyword(s):  
Hazard Analysis ◽  
Probabilistic Approach ◽  
Soil Liquefaction ◽  
Shallow Foundation ◽  
Evaluation Procedure ◽  
Liquefaction Potential ◽  
Probability Map ◽  
Liquefaction Hazard ◽  
Potential Map ◽  
The Government

The 2016 Meinong Earthquake hit southern Taiwan and many shallow foundation structures were damaged due to soil liquefaction. In response, the government initiated an investigation project to construct liquefaction potential maps for metropolitans in Taiwan. These maps were used for the preliminary safety assessment of infrastructures or buildings. However, the constructed liquefaction potential map used the pseudo-probabilistic approach, which has inconsistent return period. To solve the inconsistency, the probabilistic liquefaction hazard analysis (PLHA) was introduced. However, due to its complicated calculation procedure, PLHA is not easy and convenient for engineers to use without a specialized program, such as in Taiwan. Therefore, PLHA is not a popular liquefaction evaluation procedure in practice. This study presents a simple PLHA program, HAZ45PL Module, customized for Taiwan. Sites in Tainan City and Yuanlin City are evaluated using the HAZ45PL Module to obtain the hazard curve and to construct the liquefaction probability map. The liquefaction probability map provides probabilities of different liquefaction potential levels for engineers or owners to assess the performance of an infrastructure or to design a mitigation plan.

scholarly journals Exposure and loss assessment of soil liquefaction in coastal area of Kulon Progo, Indonesia

2020 ◽  
Vol 200 ◽  
pp. 02008
Author(s):  
Ghiffari Rizki ◽  
Rachmawati Rini ◽  
Rijanta Raden
Keyword(s):  
Residential Buildings ◽  
Vertical Displacement ◽  
Lateral Spreading ◽  
Soil Liquefaction ◽  
Transport Infrastructure ◽  
Susceptibility Map ◽  
Loss Assessment ◽  
High Exposure ◽  
Liquefaction Hazard ◽  
Study Results

Soil Liquefaction is a phenomenon of loss of strength of the granural soil layers due to increased pore water stress caused by earthquake shocks. Soil liquefaction can cause material and life damage if occurs in the developed area. Kulon Progo Regency based on the Atlas of Liquefaction Susceptibility Zones in 2019, has high susceptibility zones, which has the potential for flow liquefaction, lateral spreading, vertical displacement, and sand boil. This study aims to assess the exposure and loss index in liquefaction hazard zone based on the characteristics of land use and social demographic. The exposure index is obtained from overlaying between susceptibility map and liquefaction exposure variables, when the loss assessment is done by simulating the losses in several earthquake moment magnitude scenarios. Study results show that high exposure surrounding the residential zone in the south of the Wates Urban Area and the construction location of the Yogyakarta International Airport. There are settlement areas potentially affected by lateral spreading in Glagah, Karangwuni, Banaran, and Karangsewu Villages. While the results of the loss assessment show that transport infrastructure and residential buildings are the most affected objects when liquefaction phenomena occur due to the earthquake. Managing the expansion of settlement area through zoning regulation and technical engineering approach is needed to reduce losses due to future liquefaction phenomenon.

scholarly journals Liquefaction hazard assessment and ground failure probability analysis in the Kathmandu Valley of Nepal

2022 ◽  
Vol 9 (1) ◽  
Author(s):  
Mandip Subedi ◽  
Indra Prasad Acharya
Keyword(s):  
Soil Liquefaction ◽  
Kathmandu Valley ◽  
Borehole Data ◽  
Gorkha Earthquake ◽  
Engineering Structures ◽  
Liquefaction Potential ◽  
Ground Failure ◽  
2015 Gorkha Earthquake ◽  
Scenario Earthquakes ◽  
Liquefaction Hazard

AbstractDuring the 2015 Gorkha Earthquake (Mw7.8), extensive soil liquefaction was observed across the Kathmandu Valley. As a densely populated urban settlement, the assessment of liquefaction potential of the valley is crucial especially for ensuring the safety of engineering structures. In this study, we use borehole data including SPT-N values of 410 locations in the valley to assess the susceptibility, hazard, and risk of liquefaction of the valley soil considering three likely-to-recur scenario earthquakes. Some of the existing and frequently used analysis and computation methods are employed for the assessments, and the obtained results are presented in the form of liquefaction hazard maps indicating factor of safety, liquefaction potential index, and probability of ground failure (PG). The assessment results reveal that most of the areas have medium to very high liquefaction susceptibility, and that the central and southern parts of the valley are more susceptible to liquefaction and are at greater risk of liquefaction damage than the northern parts. The assessment outcomes are validated with the field manifestations during the 2015 Gorkha Earthquake. The target SPT-N values (Nimproved) at potentially liquefiable areas are determined using back analysis to ascertain no liquefaction during the aforesaid three scenario earthquakes.

scholarly journals Malay Heritage Houses Design via the Principle of “Form Follows Function” by Louis Sullivan

2019 ◽  
Vol 8 (2S11) ◽  
pp. 582-588
Keyword(s):  
Built Environment ◽  
19Th Century ◽  
Peninsular Malaysia ◽  
Late 19Th Century ◽  
Preliminary Study ◽  
Selection Of

The uniqueness of the Malay heritage house architecture lies in the diversity of carving forms of various motifs. The motif was chosen based on the image of the environment at the time. This paper discusses the selection of carving motifs in Malay houses based on the principle of form follows function introduced by a Western architect Louis Sullivan in the late 19th century. The meaning of form follows function in this study refers to the selection of the shape of a carving motif adjusted according to the function of the space in the Malay heritage house. A preliminary study was conducted on 10 Malay heritage houses in Peninsular Malaysia built in the 1800s. It aimed to get the types of commonly used motifs during the century of the principle was introduced. The selected houses were located in 10 states in Peninsular Malaysia obtained from measured drawings from the Center for the Study of Built Environment in The Malay World (KALAM) in Universiti Teknologi Malaysia (UTM). The selected houses were based on the most widely used carving motifs. For the purpose of this study, three houses were selected from the initial 10 houses to be further analyzed and mapped in terms of shape and placement of carving motifs based on the principle of form follows function. The study focused on the carving motifs in serambi and rumah ibu of the Malay heritage house as these two spaces had the most carving motifs. The mapping of the motifs in the two spaces shows four main motifs of flora, fauna, geometry, and calligraphy. The motifs of each home will be described from the angle of symbolism, layout, and carving style that can describe the principle of form follows function

scholarly journals GIS based approach to analyze soil liquefaction and amplification: A case study in Eskisehir, Turkey

2018 ◽  
Vol 10 (1) ◽  
pp. 855-865
Author(s):  
Volkan Okur
Keyword(s):  
Structural Model ◽  
Ground Surface ◽  
Soil Formation ◽  
Response Spectra ◽  
Soil Liquefaction ◽  
Geographical Information ◽  
Earthquake Hazards ◽  
Liquefaction Hazard ◽  
Borehole Logs

Abstract This study involves gathering the geological and geotechnical data and processing them in 3D structural model for the assessment of the likelihood of liquefaction hazard. A total of 467 borehole logs up to 30 m of depth were analyzed. Based on engineering characteristics of the soil formation, Geographical Information System based subsurface model maps and liquefaction hazard maps were prepared. Also microtremor measurements have been taken on different locations to assess the amplification of the alluvial formation. By obtaining amplification spectrum between the soil layers and response spectra at the top of the bedrock and at ground surface, a thematic map on amplification factor is produced. It is believed such kind of visual models will help engineers and designers on all aspects of future development of the cities especially transportation, infrastructure, and land uses against possible earthquake hazards.

scholarly journals LPI Based Earthquake Induced Soil Liquefaction Susceptibility Assessment at Probashi Palli Abasan Project Area, Tongi, Gazipur, Bangladesh

2018 ◽  
Vol 10 (2) ◽  
pp. 105-116
Author(s):  
A. H. Farazi ◽  
N. Ferdous ◽  
A. S. M. M. Kamal
Keyword(s):  
Threshold Value ◽  
Flood Plain ◽  
Standard Penetration Test ◽  
Soil Liquefaction ◽  
Cumulative Frequency ◽  
Liquefaction Potential ◽  
Project Area ◽  
Potential Index ◽  
Liquefaction Hazard ◽  
Simplified Procedure

This study aims at evaluation of seismic soil liquefaction hazard potential at Probashi Palli Abasan Project area of Tongi, Gazipur, exploiting standard penetration test (SPT) data of 15 boreholes, following Simplified Procedure. Liquefaction potential index (LPI) of each borehole was determined and then cumulative frequency distribution of clustered LPI values of each surface geology unit was determined assuming cumulative frequency at LPI = 5 as the threshold value for liquefaction initiation. By means of geotechnical investigation two surface geological units—Holocene flood plain deposits, and Pleistocene terrace deposits were identified in the study area. We predicted that 14% and 24% area of zones topped by Pleistocene terrace deposits and zones topped by Holocene flood plain deposits, respectively, would exhibit surface manifestation of liquefaction as a result of 7 magnitude earthquake. The engendered hazard map also depicts site specific liquefaction intensity through LPI values of respective boreholes, and color index, which was delineated by mapping with ArcGIS software. Very low to low, and low to high liquefaction potential, respectively, was found in the areas covered by Pleistocene terrace deposits and Holocene flood plain deposits. LPI values of both units are such that sand boils could be generated where LPI > 5.

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