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

2021 ◽  
Vol 81 (1) ◽  
Author(s):  
Salisa Chaiyaput ◽  
Nut Sutti ◽  
Taweephong Suksawat ◽  
Jiratchaya Ayawanna
Keyword(s):  
Electrical Resistivity ◽  
Shear Strength ◽  
Undrained Shear Strength ◽  
Electrical Resistivity Survey ◽  
Resistivity Survey ◽  
Undrained Shear

scholarly journals Geological and engineering analysis of residual soil for forewarning landslide from highland area in northern Thailand

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Thanakrit Thongkhao ◽  
Sumet Phantuwongraj ◽  
Montri Choowong ◽  
Thanop Thitimakorn ◽  
Punya Charusiri
Keyword(s):  
Electrical Resistivity ◽  
Shear Strength ◽  
Moisture Content ◽  
Engineering Properties ◽  
Main Stream ◽  
Residual Soil ◽  
Northern Thailand ◽  
Electrical Resistivity Survey ◽  
Resistivity Survey ◽  
Landslide Event

AbstractOne devastating landslide event in northern Thailand occurred in 2006 at Ban Nong Pla village, Chiang Klang highland of Nan province after, a massive amount of residual soil moved from upstream to downstream, via creek tributaries, into a main stream after five days of unusual heavy rainfall. In this paper, the geological and engineering properties of residual soil derived fromsedimentary rocks were analyzed and integrated. Geological mapping, electrical resistivity survey and test pits were carried out along three transect lines together with systematic collection of undisturbed and disturbed residual soil samples. As a result, the average moisture content in soil is 24.83% with average specific gravity of 2.68,whereas the liquid limit is 44.93%, plastic limit is 29.35% and plastic index is 15.58%. The cohesion of soil ranges between 0.096– 1.196 ksc and the angle of internal friction is between 11.51 and 35.78 degrees. This suggests that the toughness properties of soil change when moisture content increases. Results from electrical resistivity survey reveal that soil thicknesses above the bedrock along three transects range from 2 to 9 m. The soil shear strength reach the rate of high decreases in the range of 72 to 95.6% for residual soil from shale, siltstone and sandstone, respectively. Strength of soil decreaseswhen the moisture content in soil increases. Shear strength also decreases when the moisture content changes. Therefore, the natural soil slope in the study area will be stable when the moisture content in soil level is equal to one, but when the moisture content between soil particle increases, strength of soil will decrease resulting in soil strength decreasing.

Delineation of sinkhole in evaporite deposits using electrical resistivity survey: a case study of southern Kohat Plateau, Pakistan

2021 ◽  
Vol 14 (4) ◽  
Author(s):  
Muhammad Waqar Azeem ◽  
Khaista Rehman ◽  
Nazeer Ur Rehman ◽  
Afrasiab ◽  
Umar Farooq ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Electrical Resistivity Survey ◽  
Resistivity Survey

scholarly journals Evaluation of Undrained Shear Strength of Miocene Clay from the Weight Sounding Test (WST)

2017 ◽  
Vol 62 (2) ◽  
pp. 367-384
Author(s):  
Sebastian Olesiak
Keyword(s):  
Shear Strength ◽  
Field Testing ◽  
Field Investigation ◽  
Undrained Shear Strength ◽  
Cohesive Soils ◽  
Strength Parameters ◽  
Additional Measurement ◽  
Carpathian Foredeep ◽  
Innovative Solution ◽  
Undrained Shear

Abstract Soil strength parameters needed for the calculation of bearing capacity and stability are increasingly determined from field testing. This paper presents a method to determine the undrained shear strength cuWST of the soil, based on the Weight Sounding Test (WST). The innovative solution which allows for a significant reduction of equipment needed for geotechnical field investigation is presented. The proposed method is based on an additional measurement of the torque during testing. It then becomes possible to estimate the undrained shear strength, cuWST of the soil, using the correlation given in this paper. The research results presented in this paper were carried out on selected cohesive soils, Miocene clays from the Carpathian Foredeep.

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