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Penggunaan Vermikulit Dan Kapur Pada Kuat Tekan Bebas Dan Kuat Geser Tanah Lempung Saputrah, Yosrin Adi; Sariman, Syahrul; Yusuf, A. Rumpang
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.5117

Abstract

Clay soil is a soil that has a high potential for shrinkage if there is a change in the soil water content system. Expansive soil has a large shrinkage. Stabilization of clay soil is an important step in geotechnical engineering to improve the physical and mechanical properties of the soil, especially in supporting building structures. This study aims to evaluate the effect of adding vermiculite and lime on the unconfined compressive strength (UCS) and shear strength of clay soil. Vermiculite, as a mineral additive material that has high expansion and cation exchange capacity, combined with lime which is chemically able to improve soil stability and strength through pozzolanic reactions. One method of improving expansive clay soil is by adding vermiculite and lime as soil stabilization materials. In this study, shear strength and compressive strength tests will be carried out on soil samples stabilized with vermiculite and lime. This study used 6% vermiculite and variations of lime at 0%, 5%, 10%, 15% which were then tested using the UCS test and direct shear test. The results of the study showed that the highest shear strength, cohesion, and friction angle values were obtained with the addition of 6% vermiculite and 15% lime, namely 0.9247% for shear strength, 0.4392% for cohesion, and 27.57% for friction angle. Similarly, in the compressive strength test, the highest increase occurred with the addition of 6% vermiculite and 15% lime with a stress value of 1.155%.
Alternatif Perancangan Pondasi Tiang Pancang Jembatan Maros : Jalur Akses Menuju Stasiun Kereta Api Maros II Fatia, Salsa Purmadani; Sariman, Syahrul; Yuniarto, Eka
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.5136

Abstract

This research discusses the alternative design of pile foundations on the Maros Bridge, as an access route to the Maros II Railway Station. In the existing foundation condition used is the bored pile type with a total of 18 piles for each abutment, which has a bearing capacity of 1038.02 kN (abutment 1) and 1400.18 kN (abutment 2) with a diameter of 0.8 m respectively. This alternative pile foundation design considers the comparison of the number, depth, and diameter of the foundation to achieve adequate bearing capacity and determine the shifts that occur using the Displacement Method. Based on the results of the design of the pile foundation design requires 22 piles with a diameter of 0.5 m for each abutment, with a pile foundation depth of 7 m at abutment 1 and 12 m at abutment 2 and with a horizontal shift value (Hi) 968.38, vertical (Vi) 2501.66, and moment (Mi) 3939.02. The bearing capacity of a single pile obtained is 788.3 kN for abutment 1 and 1278.52 kN for abutment 2, so the total bearing capacity that can be borne by the entire foundation in carrying the load of the upper structure has met the required requirements. The configuration of the existing bored pile foundation is 18 piles, while the alternative configuration plan results in a pile configuration of 22 piles with planned dimensions that are able to withstand the loads and forces acting on the bridge even though it requires a larger number of piles compared to the existing bored pile foundation.