Soil Investigation at Wet World Hot Spring Complex for Future Development using Active Multichannel Analysis of Surface Waves

Khalil, Amin Esmail; Nawawi, Mohd; Arifin, Mohd Hariri; Abdullah, Fathi M.; Kayode, John Stephen; Usman, Nuraddeen; Arisona,

doi:10.17576/jsm-2017-4604-04

Cited by 9 publications

(4 citation statements)

References 15 publications

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“…This suture zone represents the part of the Paleo-Tethys before the collision of the Sibumasu and Indochina terranes of SE Asia [66]. Meanwhile, the Seremban Fault Zone is a curvilinear NW-SE striking fault zone which lies within the granite intrusion of the Western Belt in the south of KLFZ [67]. Shuib [60] elaborated that the fault shows a distinct sinistral strike-slip displacement.…”

Section: Kuala Pilah Area (Zone C)mentioning

confidence: 99%

Intraplate earthquake occurrence and distribution in Peninsular Malaysia over the past 100 years

Nazaruddin

Düerrast

2021

SN Appl. Sci.

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Peninsular Malaysia is tectonically situated on a stable craton (intraplate) and so far experiences relatively little earthquake activities, thus considered as a region with low seismicity. This study uses earthquake data from 59 events obtained from various sources in the period 1922 to 2020. The overall seismicity in the study area is low as expected due to the general intraplate setting. Earthquakes occurred onshore and offshore of Peninsular Malaysia between latitudes 1° and 7° N and longitudes 99° and 105° E. The seismicity pattern shows that the epicenters are distributed spatially in some parts of the peninsula and in the Malacca Strait with several epicenter zones. Most of earthquakes are associated with several preexisting faults and fault zones indicating that they are the major contributor to the local seismicity. Meanwhile, some further earthquakes were caused by activities related to reservoirs. Magnitudes are ranging from Mw 0.7 to 5.4 with the majority is Mw 1.0 + and 2.0 +. Hypocenters are located in between 1 and 167 km deep (shallow to intermediate earthquakes) with the majority being shallow earthquakes (1–70 km). The deepest earthquake located in the Straits of Malacca can be associated with a slab detachment broken off from the Sumatran Subduction Zone. Finally, this study contributes to the understanding of the intraplate seismicity of Peninsular Malaysia as a basis for seismic hazard and risk assessment.Article Highlights Earthquake assessment over the last 100 year reveals low but clear seismicity with an associated seismic hazard and risk for certain areas. Shallow, low-magnitude earthquakes associated with reservoir activities and preexisting faults reactivated by the nearby subduction zone. A deeper, low-magnitude earthquake can be related to slab detachment from the Sumatran subduction zone toward the east.

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Section: Kuala Pilah Area (Zone C)mentioning

confidence: 99%

Intraplate earthquake occurrence and distribution in Peninsular Malaysia over the past 100 years

Nazaruddin

Düerrast

2021

SN Appl. Sci.

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“…The MASW method, a non-destructive seismic technique developed primarily for shallow geophysical inquiries, has been widely applied over the last two decades for soil characterization (Park et al, 1999;Park et al, 2004;Socco and Strobbia, 2004;Foti et al, 2011;Khalil et al, 2017;Geraldine C et al, 2018). Its popularity stems from its ease of generation, recording, and processing, as well as its effectiveness and reliability.…”

Section: Introductionmentioning

confidence: 99%

Estimating shear wave velocity and site characterization of western Riyadh City, Saudi Arabia based on multichannel analysis of surface waves

Abdelrahman,

Saadon,

Qaysi

2024

Front. Earth Sci.

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The site characterization process is vital for the engineering structures and earthworks. In the current study, a Multi-Channel Analysis of Surface Waves (MASW) was carried out in western Riyadh City, Saudi Arabia. This aimed to determine subsurface geology, material stiffness, and potential weak zones approximately down to a depth of 30 m, and to propose the suitable seismic site characterization for precise foundation design. A total of 30 MASW lines were executed utilizing the Geode digital seismograph equipped with a 24-geophone array of 4.5 Hz. The data acquisition, processing, and inversion were meticulously calibrated to derive shear velocities representing subsurface geological conditions. The Vs30 map, based on estimated values ranging from 443.71 m/s to 639.78 m/s for soil, was prepared for the area. The results of the 1D and 2D Vs profiles tinted small Vs values at shallow depths. The resulting geological model is composed of sand, gravel, moderately weathered limestone, and hard limestone sequence. Analysis of shear wave velocities shows variations, indicating low shear velocity (representing sediments or rocks of low stiffness) juxtaposed with higher velocity layers (indicating rocks of higher stiffness) at depths greater than 10 m. This could imply the presence of a cavity or weak zone. The topmost shear wave velocity zone indicated materials with low Vs values (ranging from 180 m/s to 360 m/s), predominantly associated with stiff materials such as silty sand, gravel, and sandy deposits. The subsequent zone, with 3 to about 10 m depth, was characterized by medium to very dense soil with shear wave velocity values ranging from 360 m/s to 760 m/s, attributed to layers of silty clay and silty sand. At approximately 12 m, a high shear velocity layer (ranging from 760 m/s to 1,500 m/s) was identified, extending to a maximum depth of 22 m, potentially indicative of less weathered or fractured bedrock associated with limestone. While the deepest layer, with very high shear velocity (exceeding 1,500 m/s) beyond 22 m, indicated bedrock associated with hard limestone. The average Shear-wave velocity of soil for the whole study area (Vs30 = 551.2 m/s) suggests that the site can be classified as Class C (Very Dense Soil and Soft Rock) according to the National Earthquake Hazard Reeducation Program NEHRP (National earthquake hazards reduction program, 2001). These results will support, to a great extent, the design of engineering structures in the area of study.

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“…In recent years, using comprehensive exploration geophysical methods to carry out geological exploration has gradually become the norm (Bedair et al, 2021). The two geophysical methods used in this paper are multichannel analysis of surface waves (MASW) and electrical resistivity tomography (ERT), both have proved to be the efficient methods for landslide research among all geophysical methods, (Loke et al, 2015;Khalil et al, 2017;Marciniak et al, 2021). We use a combination of these two methods because a single geophysical method is non-unique in the interpretation of the results, which limit us to make accurate judgments about the subsurface structural information obtained from the inversion, MASW is a good match for ERT in terms of detection depth, and the combination of their inversion results can provide more complete information to the subsurface structural of the landslide.…”

Section: Introductionmentioning

confidence: 99%

Application of geophysical prospecting methods ERT and MASW in the landslide of Daofu County, China

Zhang

Tang

et al. 2023

Front. Earth Sci.

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Natural disasters such as debris flow caused by earthquakes seriously threaten the local infrastructure and economy, as well as the lives of people in the area. As the material source of debris flow, it has significance to accurately and effectively study the underground structure of the landslide to prevent debris flow disasters. A landslide has a complex structural system, and its underground characteristics play an important role in its stability. The early identification of fracture surfaces and unstable bodies, and assessment of potential hazards are essential for prevention and protection. The research object of this paper is a landslide that occurred in Yige Village, Xianshui Town, Daofu County, which is on the Xianshui River Earthquake Zone, an area subject to frequent earthquakes. In western Sichuan, the frequent occurrence of landslides has caused considerable economic losses. Developing methods for efficient and accurate risk assessment is a top priority. The Daofu landslide is a typical example of a landslide directly threatening the road below and forming a debris flow channel. The lithology is composed of Jurassic sedimentary rocks, such as marl and clay, covered by limestone. In this study, we combined traditional methods (drilling and field investigation) with two geophysical techniques, multichannel analysis of surface waves (MASW) and electrical resistivity tomography (ERT) to effectively determine the electrical characteristics, velocity characteristics and spatial structure of the landslide. It is found that the buried depth of the sliding surface of the landslide is about 16–20 m. The sliding body above the sliding surface forms a low velocity and low resistivity Quaternary cover. The rock mass below the sliding surface is Triassic Zhuwo Formation sandstone and slate with high velocity and high resistivity. According to comprehensive analysis, the landslide lacks sufficient stability under rainstorm. Our study shows that the use of MASW and ERT can quickly and effectively characterize the subsurface of landslides to assess landslide risk and prevent debris flow hazards.

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Soil Investigation at Wet World Hot Spring Complex for Future Development using Active Multichannel Analysis of Surface Waves

Abstract: Development of hot spring touristic projects receives more interest in Malaysia in

Cited by 9 publications

References 15 publications

Intraplate earthquake occurrence and distribution in Peninsular Malaysia over the past 100 years

Intraplate earthquake occurrence and distribution in Peninsular Malaysia over the past 100 years

Estimating shear wave velocity and site characterization of western Riyadh City, Saudi Arabia based on multichannel analysis of surface waves

Application of geophysical prospecting methods ERT and MASW in the landslide of Daofu County, China

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