A new empirical equation of shear wave velocity to predict the different peak surface accelerations for Jakarta city

Munirwansyah, Munirwansyah; Fulazzaky, Mohamad Ali; Yunita, Halida; Munirwan, Reza Pahlevi; Jonbi, Jonbi; Sumeru, Kasni

doi:10.1016/j.geog.2020.05.003

Cited by 7 publications

(5 citation statements)

References 82 publications

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“…Munirwansyah et al, in 2020 [138], highlighted that the prediction of V s is a key for the evaluation of the stability of coastal protective structures, including seawalls, revetments, and piers, thereby enabling engineers to design coastal defenses capable of withstanding waves and storm surge.…”

Section: Coastal Engineeringmentioning

confidence: 99%

Exploring Shear Wave Velocity—NSPT Correlations for Geotechnical Site Characterization: A Review

Abbas,

Al-Jeznawi,

Al-Janabi

et al. 2024

CivilEng

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Shear wave velocity (Vs) is a critical parameter in geophysical investigations, micro-zonation research, and site classification. In instances where conducting direct tests at specific locations is challenging due to equipment unavailability, limited space, or initial instrumentation costs, it becomes essential to estimate Vs directly, using empirical correlations for effective site characterization. The present review paper explores the correlations of Vs with the standard penetration test (SPT) for geotechnical site characterization. Vs, a critical parameter in geotechnical and seismic engineering, is integral to a wide range of projects, including foundation design and seismic hazard assessment. The current paper provides a detailed analysis of the key findings, implications for geotechnical engineering practice, and future research needs in this area. It emphasizes the importance of site-specific calibration, the impact of geological background, depth-dependent behavior, data quality control, and the integration of Vs data with other geophysical methods. The review underlines the continuous monitoring of Vs values due to potential changes over time. Addressing these insights and gaps in research contributes to the accuracy and safety of geotechnical projects, particularly in seismic-prone regions.

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Section: Coastal Engineeringmentioning

confidence: 99%

Exploring Shear Wave Velocity—NSPT Correlations for Geotechnical Site Characterization: A Review

Abbas,

Al-Jeznawi,

Al-Janabi

et al. 2024

CivilEng

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“…Furthermore, building quality is related to the resilience of the building as a function of residence. Hence, the number of impermanent houses will affect the opportunities for homelessness [16]. The proportion of areas with high and very high impermanent houses were located in the northwestern part of Bengkulu City or coastal areas with high population density.…”

Section: B Sensitivitymentioning

confidence: 99%

“…PGA is generally utilized to describe ground-motion in a particular zone [15]. This research used peak ground acceleration (PGA) for the seismic data to observe bedrock depths deeper than 30 m under the Earth's surface [16]. Research on PGA in Bengkulu City was conducted in 2012 [17], but the data used was restricted to the occurrence of earthquakes in Bengkulu City.…”

Section: Introductionmentioning

confidence: 99%

Spatial Analysis of Social Vulnerability to Earthquake Hazard in Bengkulu City

Lestari¹,

Susiloningtyas²

2022

Int. J. Adv. Sci. Eng. Inf. Technol.

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As a province on Sumatera's west coast, Bengkulu is prone to earthquakes. The region lies on the meeting of the Indo-Australian Plate, the Eurasian Plate, and the Sumatra Fault. Additionally, it is affected by the Mentawai Fault. Various attempts were made to reduce the impact of an earthquake, for instance, by identifying the region's vulnerability. Variables used in this study were based on Social Vulnerability Index (SOVI) by Susan L. Cutter, such as the number of people working in the informal sector and the population density to determine exposure. Other variables in the index include the proportions of vulnerable age population, impermanent houses to determine sensitivity, wealthy households, high school graduates and above, and social capital to determine adaptive capacity. This research aimed to map the vulnerability of the region. It followed social indicators connected to the Peak Ground Acceleration of ≥ 5.0 RS earthquake in 2000-2015. The overlay approach and scoring were used to conduct this village-based study. If the regions were farther from the city center, vulnerability levels tended to be lower; the south is an exception. The research also found an interesting pattern of vulnerability levels to earthquakes. The vulnerability level in the high PGA region was high and very high when the magnitude ranged between 5.0 and 5.9 RS. Meanwhile, the region's vulnerability was high and very high in the low PGA region if the magnitude reached 6.0 to 7.9 RS.

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“…Additionally, Aceh-Indonesia has one of the highest rates of seismic activity in the world [22,23]. Notably in the aftermath of multiple historic big earthquakes in Aceh, such as the 8.9 Mw earthquake-tsunami of 2004 that caused death and destroyed numerous structures [24], it is critical to conduct a comprehensive analysis of the concrete used in construction [25].…”

Section: Introductionmentioning

confidence: 99%

Effect of Coral Aggregates of Blended Cement Concrete Subjected to Different Water Immersion Condition

Bunyamin

Kurniasari

Munirwan

et al. 2022

Advances in Civil Engineering

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The increasing use of concrete in construction has caused an increase in the need for resources for concrete mixtures and driving wide-scale mining. One alternate material that can be used for aggregates replacement is coral. Coral aggregates (CA) have similar chemical characteristics to cement. The compressive strength and tensile splitting strength tests of concrete coral aggregates were performed based on the ASTM and ACI standards. This study aims are to investigate the usage of CA as a partial replacement of cement and fine aggregate to increase the strength of concrete at substitution percentages of 0, 5, 10, and 15%. Two different water submerged scenarios of distilled water and salt sea water immersion were applied. The concrete strength test was carried out after 28 days of curing time, with the specified concrete quality of 17 MPa. The results showed that immersion in distilled water has a higher concrete strength than immersion in sea water. The maximum compressive strength of concrete for distilled and sea water immersion is for 0% CA content of 18.47 and 14.89 MPa, respectively. Moreover, the highest value of the split tensile strength of concrete with distilled and sea water immersion is for CA substitution of 5% of 2.52 and 2.5 MPa, respectively. The addition of 5% coral aggregates to cement and fine sand is the optimum combination since it increases the maximum split tensile strength of concrete.

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A new empirical equation of shear wave velocity to predict the different peak surface accelerations for Jakarta city

Cited by 7 publications

References 82 publications

Exploring Shear Wave Velocity—NSPT Correlations for Geotechnical Site Characterization: A Review

Exploring Shear Wave Velocity—NSPT Correlations for Geotechnical Site Characterization: A Review

Spatial Analysis of Social Vulnerability to Earthquake Hazard in Bengkulu City

Effect of Coral Aggregates of Blended Cement Concrete Subjected to Different Water Immersion Condition

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