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All Journal Matriks Teknik Sipil
Niken Silmi Surjandari
Program Studi Teknik Sipil, Fakultas Teknik, Universitas Sebelas Maret
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Materials Science & Nanotechnology

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POTENSI KEMBANG SUSUT TANAH EKSPANSIF DI WILAYAH SOLO RAYA (Studi Kasus di Trucuk, Pedan, dan Nogosari) Siti Nurlita Fitri; Niken Silmi Surjandari; Noegroho Djarwanti; Yusep Muslih Purwana; Bambang Setiawan; Harya Dananjaya; Brilian Budi Prakosa
Matriks Teknik Sipil Vol 9, No 4 (2021): Desember
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1453.98 KB) | DOI: 10.20961/mateksi.v9i4.55171

Abstract

Expansive soil has commonly found in several areas around infrastructure projects such as; highways, irrigation systems, buildings, and bridges. The behavior of expansive soils affects the strengths and durability of the upper structure. The main characteristic of expansive soil is the swell-shrinkage influenced by water content. Moreover, the negative trait harms the structure. For example,  the cracks of the highway pavement and building wall and differential settlements in bridges abutment are the damage phenomena caused by expansive soil. The soil spread in several area near Surakarta residency namely Nogosari, Boyolali , Cawas Pedan, Klaten Regency, Bendosari Gentan, Sukoharjo and Purwodadi. Therefore, these areas have high vulnerability damage of Expansive soil. The study for determining and collecting data on the potential for shrinkage, which is a characteristic of expansive soil, is necessary conduct. This research aims to identify the swell-shrinkage potential in laboratory tests. The test had carried out with property index(water content and Atterberg limit) following code standards (SNI and ASTM). The liquid limit values for the Trucuk, Padan, and Nogosari areas are 84.75%, respectively; 73.56% and 49.05%. The plasticity index values for the Trucuk, Padan, and Nogosari regions are as follows: 66.97%; 45.72%; and 28.74%. Activity (AC) values for the 3 Pedan, Trucuk, and Nogosari locations are as follows: 1.61; 1.67; and 1.28. The value results are based on laboratory tests output, were 3 locations in the Klaten area, namely Trucuk, Pedan, and Nogosari. In summary, the zones have high susceptibility area damage by expansive soil. The result of this study is expected to be preliminary mapping guidance surround the Surakarta Residency
PENGARUH DIMENSI PONDASI DAN KAPASITAS MESIN TERHADAP RESPON STATIS PONDASI MESIN DANGKAL Addina Salam Arrasyidi; Niken Silmi Surjandari; Siti Nurlita Fitri
Matriks Teknik Sipil Vol 10, No 3 (2022): September
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v10i3.64113

Abstract

Pertumbuhan ekonomi dan penduduk di Indonesia mengakibatkan kebutuhan listrik yang meningkat. Salah satu cara mengatasi kebutuhan listrik yang terus meningkat adalah dengan membangun pembangkit listrik tenaga mikro hidro. Mesin PLTMH Ketika digunakan akan mengalami getaran yang dapat membahayakan mesin itu sendiri maupun lingkungan disekitarnya. Sehingga dibutuhkan pondasi mesin yang dapat meredam getaran mesin dan aman terhadap respon statis mesin PLTMH. Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh dimensi pondasi dan kapasitas mesin terhadap respon statis pondasi mesin. Dengan variasi panjang dan lebar pondasi sebesar 0,5 m. Untuk variasi mesin yang digunakan adalah mesin dengan kapasitas 1000, 1500, dan 1200 rpm. Metode analisa yang digunakan adalah metode meyerhof. Hasil yang didapatkan dari penelitian ini adalah semakin besar panjang pondasi, maka akan terjadi penurunan daya dukung sebesar 6,67%, sedangkan semakin besar luas penampang pondasi maka akan terjadi penurunan tegangan statis sebesar 3% untuk semua mesin.
Co-Authors Addina Salam Arrasyidi Bambang Setiawan Brilian Budi Prakosa Harya Dananjaya Noegroho Djarwanti Siti Nurlita Fitri Yusep Muslih Purwana