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All Journal Jurnal Sains dan Teknologi ISTP Jurnal Studi dan Aplikasi Teknik Sipil (JSATS)
Surta Ria Nurliana Panjaitan
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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PENGARUH PEMERAMAN TERHADAP KUAT TEKAN TANAH LEMPUNG PATUMBAK DESA SUKA TENANG KABUPATEN DELI SERDANG YANG DISTABILISASI DENGAN ABU BATUBARA Surta Ria Nurliana Panjaitan; Semangat Marudut Tua Debataraja
Jurnal Sains dan Teknologi ISTP Vol. 22 No. 02 (2025): JANUARI
Publisher : LPPM ISTP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59637/jsti.v22i2.470

Abstract

The Patumbak clay soil of Deli Serdang Regency from North Sumatra is a type of fine-grained soil with low bearing capacity and is sensitive to changes in water content so that the soil is unstable. This is very detrimental if clay is used as base soil to support building construction. So to overcome this problem it is necessary to stabilize clay soil as the base soil. One way is to add coal ash to clay soil. The research was carried out on clay soil from Patumbak, the Unconfined Compression Test value was 0.1702 kg/cm2. The tests carried out are preliminary tests to obtain the physical and mechanical properties of clay and clay soils that have been stabilized. Testing continued with the addition of coal ash and curing. The percentage of coal ash content used is 0, 5, 10, 15 and 20% and the curing variations used are 0, 1, 4, 7 and 14 days and then an Unconfined Compression Test is carried out to determine the compressive strength value using the optimum water content obtained in the compaction test. The results of the research show that curing and adding coal ash content to clay soil with optimum water content will increase the compressive strength value of the clay soil. The maximum Unconfined Compression Test value was obtained on a 20% coal ash mixture with a value of 0.6371 kg/cm2 at 14 days of curing. The results of the research can be concluded that curing and stabilization using coal ash on clay soil can sufficiently improve the physical and mechanical properties of the soil.
Analisis Kinerja Dinding Penahan Tanah dengan Menggunakan Teknologi Soil Nailing Redo Sitompul; Surta Ria Nurliana Panjaitan
Jurnal Studi dan Aplikasi Teknik Sipil (JSATS) Vol. 1 No. 1 (2025): Ferbruari
Publisher : Marasofi International Media and Publishing (MIMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64123/jsats.v1.i1.4

Abstract

Stabilisasi lereng dan konstruksi dinding penahan tanah merupakan bagian penting dalam pembangunan infrastruktur, khususnya pada wilayah perbukitan dan daerah rawan longsor. Salah satu teknologi yang semakin berkembang dalam bidang ini adalah soil nailing, yaitu teknik perkuatan tanah dengan pemasangan batang baja tulangan (nail) yang ditanam ke dalam tanah dan dikombinasikan dengan facing beton semprot (shotcrete). Penelitian ini bertujuan untuk mengevaluasi kinerja sistem dinding penahan tanah berbasis soil nailing menggunakan simulasi numerik berbasis elemen hingga (Finite Element Method/FEM). Model simulasi dilakukan pada berbagai kondisi geoteknik, seperti variasi jenis tanah, panjang dan kemiringan paku tanah, serta tinggi lereng. Parameter yang dianalisis meliputi faktor keamanan (FS), deformasi lateral, dan tegangan maksimum pada paku tanah. Hasil penelitian menunjukkan bahwa konfigurasi optimal dapat meningkatkan FS hingga 1,65 dibandingkan struktur konvensional. Selain itu, teknologi soil nailing terbukti efektif dalam mengurangi deformasi lereng dan distribusi tegangan berlebih. Studi ini memberikan kontribusi penting dalam perencanaan dinding penahan modern yang efisien dan adaptif terhadap kondisi tanah dan beban dinamis
Co-Authors Debataraja, Semangat Marudut Tua Redo Sitompul