TY - JOUR
T1 - Determination of soil–water characteristic curves by using a polymer tensiometer
AU - Wijaya, Martin
AU - Lim, Aswin
AU - Rahardjo, Paulus Pramono
AU - Satyanaga, Alfrendo
AU - Hamdany, Abdul Halim
AU - Adiguna, Glenn Adriel
N1 - Publisher Copyright:
© 2024 the author(s), published by De Gruyter.
PY - 2024/1/1
Y1 - 2024/1/1
N2 - Recently, rainfall-induced slope failure has struck Cimanggung village, West Java province, Indonesia. In order to anticipate future slope failures due to rainfall, an unsaturated slope stability analysis is compulsory. Precise information on the soil–water characteristic curve (SWCC) is required to conduct an accurate unsaturated soil analysis. In this article, a procedure to obtain SWCC by using a polymer tensiometer for Cimanggung village is proposed. Considering the long period of time needed to obtain the measured data, some prediction methods are available. The measured SWCCs are then compared with SWCCs based on two prediction methods. Chin’s 1-point and Perera et al.’s methods are applied as the prediction methods and then compared with the measured SWCCs. It could be concluded that Chin’s 1-point method yields a close estimation within the suction range. Meanwhile, the Perera et al. method underestimates the air entry value, and the predicted curve deviates significantly with the measured SWCC. Hence, Chin’s 1-point method is recommended for predicting SWCCs in Cimanggung Village.
AB - Recently, rainfall-induced slope failure has struck Cimanggung village, West Java province, Indonesia. In order to anticipate future slope failures due to rainfall, an unsaturated slope stability analysis is compulsory. Precise information on the soil–water characteristic curve (SWCC) is required to conduct an accurate unsaturated soil analysis. In this article, a procedure to obtain SWCC by using a polymer tensiometer for Cimanggung village is proposed. Considering the long period of time needed to obtain the measured data, some prediction methods are available. The measured SWCCs are then compared with SWCCs based on two prediction methods. Chin’s 1-point and Perera et al.’s methods are applied as the prediction methods and then compared with the measured SWCCs. It could be concluded that Chin’s 1-point method yields a close estimation within the suction range. Meanwhile, the Perera et al. method underestimates the air entry value, and the predicted curve deviates significantly with the measured SWCC. Hence, Chin’s 1-point method is recommended for predicting SWCCs in Cimanggung Village.
KW - Cimanggung
KW - polymer tensiometer
KW - suction measurement
KW - SWCC
KW - unsaturated soil
UR - http://www.scopus.com/inward/record.url?scp=85200437203&partnerID=8YFLogxK
U2 - 10.1515/jmbm-2024-0007
DO - 10.1515/jmbm-2024-0007
M3 - Article
AN - SCOPUS:85200437203
SN - 0334-8938
VL - 33
JO - Journal of the Mechanical Behavior of Materials
JF - Journal of the Mechanical Behavior of Materials
IS - 1
M1 - 20240007
ER -