IJOG : Indonesian Journal on Geoscience
Vol. 9 No. 1 (2022)

Behaviour of Friction Resistance of Pile Groups on Clay Soil During Loading Tests: Case Study in Semarang and Temanggung, Central Java, Indonesia

Muhammad Mukhlisin (Civil Engineering Department, Politeknik Negeri Semarang, Jln. Prof. Soedarto, SH., Tembalang, Semarang, Central Java,)
Budi Hamdani (Civil Engineering Department, Politeknik Negeri Semarang, Jln. Prof. Soedarto, SH., Tembalang, Semarang, Central Java,)
Erna Novita (Civil Engineering Department, Politeknik Negeri Semarang, Jln. Prof. Soedarto, SH., Tembalang, Semarang, Central Java,)
Sukoyo Sukoyo (Civil Engineering Department, Politeknik Negeri Semarang, Jln. Prof. Soedarto, SH., Tembalang, Semarang, Central Java,)
Aiun Hayatu Rabinah (Civil Engineering Department, Politeknik Negeri Semarang, Jln. Prof. Soedarto, SH., Tembalang, Semarang, Central Java,)



Article Info

Publish Date
15 Dec 2021

Abstract

DOI:10.17014/ijog.9.1.61-69Shear strength parameters influence the bearing capacity of pile foundations, i.e. internal friction angle (ϕ) and cohesion (c). Soil parameters are affected by water content, which can be altered by climate change. Clay soils have high swelling and shrinking potential, caused by changes in water content, and this can affect the failure of foundations. Analysis of the influence of moisture content on the friction resistance of piles needs to be carried out, especially in clay soils. This research uses laboratory experiments to model four piles, with diameters of 16 mm. The pile group models are modeled in soil samples taken from three different locations, i.e. Tembalang, Pengaron, and Pingit, in Central Java. The samples were treated (soaking and drying) for one, three, and seven days. The USCS categorization of the soil samples were OH (organic clay with medium plasticity) and CH (inorganic clay with high plasticity). Friction resistance in piles within soaking conditions, decrease in proportion to an increase in moisture content. On the other hand, friction resistance increases under drying conditions. However, the friction resistance of the soil that had been treated (by soaking and drying) was not equal to the initial conditions.

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Journal Info

Abbrev

IJOG

Publisher

Subject

Earth & Planetary Sciences

Description

The spirit to improve the journal to be more credible is increasing, and in 2012 it invited earth scientists in East and Southeast Asia as well as some western countries to join the journal for the editor positions in the Indonesia Journal of Geology. This is also to realize our present goal to ...