Evaluation of the road failure using resistivity and screw driving sounding testing techniques: A case study in Ang Thong province, Thailand

Chaiyaput, Salisa; Suksawat, Taweephong; Ayawanna, Jiratchaya

doi:10.1016/j.engfailanal.2020.105171

Cited by 9 publications

(6 citation statements)

References 13 publications

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“…Hence, the SDS machine was customized to increase its ability to penetrate those layers. Many studies have explained the working procedure of the machine in detail [2,8,9,11,15]. Fig.…”

Section: Sds Equipmentmentioning

confidence: 99%

“…Now, its application is broadened to various Engineering projects related to reclaimed lands, dams, canals, roads, housing projects, landslide-prone areas, and many more in Thailand and other parts of the world [3,[6][7][8][9]. Researchers from New Zealand, Malaysia, Thailand, and Japan have used this technique for their study [6,[8][9][10][11][12][13][14][15]. The future scope and applications of this research are broad, and can be used in numerous geotechnical projects.…”

Section: Introductionmentioning

confidence: 99%

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Soil Strength Estimation Using Screw Driving Sounding Technique for Bangkok Clay Layers

Soralump

2023

GEOMATE

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The Screw Driving Sounding (SDS) test is an improvised and modified version of the Swedish Weight sounding (SWS) test. It is an emerging technique for in-situ field characterization used to estimate strength parameters from field tests directly, rather than by obtaining samples from the field and performing laboratory tests. For this research, several boreholes with standard penetration tests (SPTs) were conducted in the central region of Bangkok. SDS tests and field vane shear tests were performed in the vicinity of these boreholes. The undrained shear strengths from these tests were correlated separately to the SDS torque for marine and intertidal clay deposits. These equations differed slightly due to the difference in the shearing during failure of soil. These empirical equations are supported by an analytical equation that is derived based on the shearing mechanism of soil when the SDS screw head is penetrated into the soil. The correlation to estimate the SPT N was developed for stiff and hard alluvium clay, and compared with the equation from past research. Plots of SDS penetration energy with the consistency index showed that the clays could be clustered as two distinct groups based on their state and consistency. The SDS penetration resistance parameters were extremely affected by differences in the state of clay, which depended on the soil's depositional history and depositional environment. The past researches were mainly empirical and dealt with sand or Japanese clay, formed in different depositional environment. Those equations do not give reliable results when applied directly to Bangkok clay. Hence, from this research, the undrained shear strength of soft clay and SPT N of stiff clay of the Bangkok deposit can be estimated directly from the equations.

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“…Hence, the SDS machine was customized to increase its ability to penetrate those layers. Many studies have explained the working procedure of the machine in detail [2,8,9,11,15]. Fig.…”

Section: Sds Equipmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soil Strength Estimation Using Screw Driving Sounding Technique for Bangkok Clay Layers

Soralump

2023

GEOMATE

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“…The finite element method (FEM) was chosen to confirm the number of effective layers and the position of the RSS-reinforced road embankment. PLAXIS (American Bentley Systems, Inc., Exton, PA, USA) ennsylvania is the most reliable software for FEM modeling and solving problems in geotechnical work using two-dimensional (2D) FEM under plane strain conditions [38,39]. Moreover, several previous works revealed that the simulation results from PLAXIS software are aligned with the actual situation in complex ground conditions [40][41][42].…”

Section: Numerical Simulationmentioning

confidence: 99%

Natural Para Rubber in Road Embankment Stabilization

Chaiyaput

Arwaedo²,

Jamsawang

et al. 2022

Applied Sciences

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This is the first study on “ribbed smoked sheets (RSS)” as a geogrid reinforcement in geotechnical engineering. An RSS is a kind of natural para rubber. RSS (grade 3) was designed as a biaxial geogrid with an aperture size of 20 mm × 20 mm and a spacing of 20 mm. The RSS was found to be a significant functional layer when applied to the subbase lateritic soil layer. The lateritic soil with an RSS reinforcing layer was greatly improved regarding the California bearing ratio (CBR). Numerical simulation using two-dimensional finite element software was used to determine the optimal number and positions of the RSS reinforcing layers in road embankment stabilization. The simulation data in terms of horizontal displacement of unreinforced road embankments was validated by the collected data from the actual construction site. The RSS reinforced layer was varied from one to three layers under 61 analysis conditions. The highest safety factor was obtained with two layers of RSS at 0.1H below the top of the road embankment and 0.4H below the first RSS layer, suggesting a suitable installation of the RSS reinforcing layer. The RSS is thus strongly recommended as a reinforcing material in low CBR lateritic soil for the road embankment.

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“…From the earlier works, the resistivity survey method shows itself to be as effective as an alternative technique for evaluating the unconfined compressive strength of soil, which is an important soil strength parameter that helps the engineer to design the required structure foundation. Moreover, the thickness of the soil layer from the resistivity survey was successfully mapped with the undrained shear strength parameter from the screw driving sounding test (Chaiyaput et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Electrical resistivity survey for evaluating the undrained shear strength of soft Bangkok clay at some of the canal-side road investigation sites

Chaiyaput

Sutti²,

Suksawat³

et al. 2021

Bull Eng Geol Environ

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A resistivity-undrained shear strength equation was proposed in this work to investigate the relationship between the undrained shear strength and electrical resistivity of soft Bangkok clay. The field vane shear and screw driving sounding tests were used to evaluate the undrained shear strength of the soft Bangkok clay from 10 field investigations of the canal-side roads. Meanwhile, the electrical resistivity was collected by the low-cost nondestructive resistivity survey method. The relationship between the measured resistivity corresponding to the undrained shear strength was expressed as a linear equation of S u = 7.061ρ with a high statistical correlation (96.20%) between the undrained shear strength and resistivity. The validation between the predicted undrained shear strength from the equation and the measured undrained shear strength from the field sites confirmed the statistically significant relation of data and the reliability of the proposed equation. By using this equation, it successfully predicted the undrained shear strength of the soft Bangkok clay at a depth of 4.00-10.00 m below the ground surface of canal-side roads (zones C, D, and E in the zonation map). The proposed new equation from the resistivity survey in this work, therefore, serves as an alternative tool to fast estimate the shear strength of soft soil in the large area for the preliminary evaluation of road construction.

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Evaluation of the road failure using resistivity and screw driving sounding testing techniques: A case study in Ang Thong province, Thailand

Cited by 9 publications

References 13 publications

Soil Strength Estimation Using Screw Driving Sounding Technique for Bangkok Clay Layers

Soil Strength Estimation Using Screw Driving Sounding Technique for Bangkok Clay Layers

Natural Para Rubber in Road Embankment Stabilization

Electrical resistivity survey for evaluating the undrained shear strength of soft Bangkok clay at some of the canal-side road investigation sites

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