Geophysical investigation of a landslide: The Altındağ landslide site, İzmir (western Turkey)

Göktürkler, Gökhan; Balkaya, Çağlayan; Erhan, Zülfikar

doi:10.1016/j.jappgeo.2008.05.008

Cited by 69 publications

(46 citation statements)

References 43 publications

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“…Hickin et al (2009) used a combination of groundpenetrating radar and electrical methods (as well as trenching) to simultaneously derive structural and textural information for fluvial deposits. Other examples are found in the study of, amongst others, karst features , ephemeral stream sediments (Burrell et al, 2008), landslides Göktürkler et al, 2008;Naudet et al, 2008;Sass et al, 2008;Jongmans et al, 2009), and buried paleo-landscapes and incised valleys (Gabriel et al, 2003;Ahmad et al, 2009;Burval Working Group, 2009;Barnaba et al, 2010).…”

Section: Multiple Methodsmentioning

confidence: 99%

Landform characterization using geophysics—Recent advances, applications, and emerging tools

Dam

2012

Geomorphology

105

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Section: Multiple Methodsmentioning

confidence: 99%

Landform characterization using geophysics—Recent advances, applications, and emerging tools

Dam

2012

Geomorphology

105

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“…According to [19], [20] and [29], the using concept of seismic refraction in locating weakness plane (slip surface /shear plane) is that the materials above the weakness plane consist of great difference properties such as a slipped mass will exhibit lower seismic velocity than those underlying in situ strata. The seismic refraction is capable to represent a landslide mass by low P-wave velocity while the high P-wave velocity represents the landslide bedrock [11]. As reported by [7], slip surface zone was located at depth of 15 20 m from the ground surface based on borehole exploration consists of standard penetration test (SPT), inclinometer and geology condition at the area.…”

Section: Southwest (Sw) Zonementioning

confidence: 99%

“…Furthermore, the reliability performance of any individual geophysical methods will always depends on fundamental physical constraints, e.g. penetration, resolution, and signal to-noise ratio [10] and [4] According to [10], [11], [4] and [13], geophysical method such as the seismic methods can be practically adopted to determine the internal distribution of materials within a slope, identifying sliding surface geometry, water effect on slope, landslide material physical properties and mass movement. In its application to ground damage through landslides, seismic refraction method will detect the reduction of stiffness or rigidity of the sliding mass relative to the underlying undisturbed sediments or bedrock [14].…”

Section: Introductionmentioning

confidence: 99%

“…The application of electrical resistivity and seismic methods can help in the identification of clay layer and the fault zone associated with the landslide failure to be successfully being mapped [18]. The application of seismic refraction can also be successfully being used in the determination of landslide properties such as depth and dip of a slip surface/shear plane [19], [11] and [20].…”

Section: Introductionmentioning

confidence: 99%

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Seismic Refraction Investigation on Near Surface Landslides at the Kundasang Area in Sabah, Malaysia

Abidin

Saad²,

Ahmad³

et al. 2012

Procedia Engineering

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Surface geophysical method was used in studying the effect of natural disaster impact and subsurface physical changes located in an active geohazard zone at the Kundasang area in Sabah, Malaysia. The natural disaster impact was a previous surface and subsurface ground damage caused by a landslides activity, and the consequent civil engineering infrastructure failure. 2D seismic refraction tomography (2DSRT) was used in evaluating the continuous subsurface ground damage with particular reference to geomaterials and landslide features based on compressional wave (Primary velocity, vp) results. A total of four spread lines were conducted in two different zones (Northeast and Southwest zone) in Kundasang Secondary School (SMK Kundasang). Primary velocity data was acquired and recorded using ABEM Terraloc MK6 seismograph with the seismic wave being triggered by an impact and detected by arrays of sensitive devices called geophones. 2D seismic refraction primary velocity results representing subsurface profile for each survey line were calculated to determine time and depth of the subsurface profile investigated based on linear and delay time analysis supplied by Optim software package and supported by previous borehole data. The seismic refraction method identified three main layers of geomaterials which contained a subsurface landslides anomaly within the layers. The results consist of top soil/residual soil (330 600 m/s) 0 6 m, weathered zone with a mixture of soil, boulder and rock fractured (500 1900 m/s) 2 25 m and fresh rock/bedrock (> 2300 m/s) from 8 m depth. The landslides geometry was determined inconsistently within the survey line from 3 25 m (thickness), 57 and 75 m (width) and 100 m and more (length) with a primary velocity of 700 1800 m/s. The seismic refraction profiles obtained also revealed that the landslide occurrence extends from the southeast zone and continuously heading towards the northeast zone. A good matching seismic refraction results was obtained and calibrated using borehole results which shows that this technique was appropriate to be applied in near-surface landslide assessment which can further substantiates and compliments borehole data and others physical mapping * Corresponding author. Tel.: +6-013-3738-707; fax: +6-07-453-6588 . E-mail address: hazreek@uthm.edu.my .Available online at www.sciencedirect.com 517 Mohd Hazreek Zainal Abidin et al. / Procedia Engineering 50 ( 2012 ) 516 -531 data rapidly in a lower cost. Furthermore, this geophysical method adopts a surface technique that can minimise the disruption and damage to the site thus preserving a sustainable environment during the site investigation data acquisition stages.

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“…In the application of surface geophysical exploration to landslides, electrical resistivity sounding and seismic refraction surveys have been the methods most commonly employed with the primary aim of providing information about the geological framework and the mechanism of landslide (Bogoslovsky and Ogilvy 1977;McCann and Forster 1990;Caris and Van Asch 1991;McGuffey et al 1996;Hwang et al 2000;Mauritsch et al 2000;Bichler et al 2004;Otto and Sass 2006;Göktürkler et al 2008;Jongmans et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Surface geophysical investigations of landslide at the Wiri area in southeastern Korea

Kim

et al. 2010

Environ Earth Sci

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A geophysical survey was undertaken at Wiri area of the Andong in southeastern Korea to delineate subsurface structure and to detect the fault zone, which affected the 1997 mountain-hill subsidence and subsequent road heaving initiated by the intense rainfall. Electrical resistivity methods of dipole-dipole array profiling and Schlumberger array sounding and seismic methods of refraction and reflection profiling were used to map a clay zone, which was regarded as the major factor for the landslide. The clay zone was identified in electrical resistivity and seismic sections as having low electrical resistivity (\100 Xm) and low seismic velocity (\400 m/s), respectively. The clay zone detected by using geophysical methods is well correlated with its distribution from the trench and drill-core data. The results of the electrical and seismic surveys showed that slope subsidence was associated with the sliding of saturated clay along a fault plane trending NNW-SSE and dipping 10°-20°S W. However, the road heaving was caused by the slope movement of the saturated clay along a sub-vertical NNEtrending fault.

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Geophysical investigation of a landslide: The Altındağ landslide site, İzmir (western Turkey)

Cited by 69 publications

References 43 publications

Landform characterization using geophysics—Recent advances, applications, and emerging tools

Landform characterization using geophysics—Recent advances, applications, and emerging tools

Seismic Refraction Investigation on Near Surface Landslides at the Kundasang Area in Sabah, Malaysia

Surface geophysical investigations of landslide at the Wiri area in southeastern Korea

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