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All Journal Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil BANGUN REKAPRIMA Teras Jurnal SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Abdimas Bina Bangsa Teknika Cakrawala: Jurnal Pengabdian Masyarakat Global Jurnal Informasi Pengabdian Masyarakat
Anik Kustirini, Anik
Jurusan Teknik Sipil, Fakultas Teknik, Universitas Semarang
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REDUCTION OF FLOOD DISCHARGE USING PERFORATED HORIZONTAL RECHARGE PIPES Susilo, Edy; Budiningrum, Diah Setyati; Kustirini, Anik
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 28 No. 1 (2023): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v28i1.4794

Abstract

Despite implementing many recharge wells, the groundwater recharge with wells is still minimal. The hydrostatic pressure of the recharge well is only experienced at the bottom of the well which caused surface runoff. This study aims to formulate water recharge with Type T Perforated Horizontal Recharge Pipes (PHRP-T) to analyze the need for reducing surface runoff discharge. Water recharge with PHRP-T is greater than recharge wells. Using the experimental method, the recharge test was carried out with the independent variables of soil permeability (K), pipe wall porosity (P), pipe diameter (D), the length of the perforated horizontal pipe (L), and water pressure level (H). The recharge was observed from lowering the water level in the vertical pipe PHRP-T. A statistical program was performed to analyse the relationship between water absorption (Q) as the dependent variable with a regression equation. PHRP-T implementation to reduce surface runoff discharge can be applied to the hydrograph and rational methods. The findings of PHRP-T are significant for reducing flooding and increasing groundwater availability.
STUDI EXPERIMENTAL KUAT TEKAN BETON GEOPOLIMER BERBAHAN DASAR FLY ASH PLTU TANJUNGJATI B JEPARA Budiningrum, Diah Setyati; Kustirini, Anik; Purnijanto, Bambang; Mahasukma, Devinda; Utama, Tegar Yogha
Bangun Rekaprima Vol. 7 No. 2 (2021): Oktober 2021
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.377 KB) | DOI: 10.32497/bangunrekaprima.v7i2.2997

Abstract

Proses pembuatan beton memakai semen portland menghasilkan gas CO2 (carbon dioksida) dalam jumlah besar dan mengakibatkan emisi karbondioksida meningkat, maka perlu dicarikan upaya untuk menekan angka produksi gas yang mencemari lingkungan. Geopolimer merupakan material ramah lingkungan yang bisa dikembangkan sebagai alternatif pengganti beton semen di masa mendatang. Jenis material beton baru “Geopolimer” ini merupakan beton yang ramah lingkungan karena material yang digunakan tersusun dari sintesa bahan-bahan non organik melalui polimerisasi Metode penelitian yang digunakan adalah eksperimental, dengan menggunakan benda uji silinder ukuran 10/20 sebanyak 6 silinder. Diuji pada umur 14 hari dan 28 hari. Hasil kuat tekan beton geopolymer 19,45 MPa pada umur 14 hari dan 22,99 MPa pada umur 28 hari. Kenaikan tren kuat tekan beton geopolymer sebesar 18,2%.
KARAKTERISTIK MARSHALL TERHADAP PENGGUNAAN ASBUTON BUTIR B5/20 DENGAN SUBSTITUSI DASPAL DAN ASPAL PENETRASI 60/70 Sulistyaningsih, Ainaya; RA, Andi Ainun Zuqny Nurin; Kustirini, Anik; Purnijanto, Bambang
Bangun Rekaprima Vol. 8 No. 2 (2022): Oktober 2022
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.031 KB) | DOI: 10.32497/bangunrekaprima.v8i2.3966

Abstract

Peningkatan pembangunan di dunia industri maupun non industri tidak luput dari penggunaan material bahan bangunan, dimana material tersebut salah satunya adalah aspal, yang sering digunakan dalam pembuatan jalan. Asbuton merupakan salah satu sumber daya alam Indonesia yang kualitasnya tidak perlu diragukan lagi, namun ada kekhawatiran konsumsi Asbuton di Indonesia terlalu tinggi, maka jumlahnya menipis. Oleh karena itu, dilakukan penelitian untuk mengkaji pengaruh penggunaan Asbuton Butir B5/20 dengan substitusi Aspal pen 60/70 dan daspal yang terdiri dari (damar, fly ash, dan minyak goreng). Pengujian pada benda uji menggunakan Marshall Test dengan variasi presentase benda uji 0%, 1%, dan 3% per 1.200 gram berat Asbuton Butir B5/20. Pengujian menghasilkan rata ”“ rata nilai stabilitas pada benda uji 0%, 1%, dan 3% adalah 641,52 kg; 748,44 kg; dan 588,06 kg. Sedangkan nilai kelelehan yang dihasilkan pada benda uji 0%, 1%, dan 3% adalah sebesar 0,825 mm; 3,6 mm; dan 5,8 mm.
PEMBERDAYAAN WARGA MASYARAKAT AKAN PENTINGNYA SANITASI BAGI LINGKUNGAN DI KELURAHAN PINDRIKAN LOR, SEMARANG TENGAH, SEMARANG Muldiyanto, Agus; Budiningrum, Diah Setyati; Kustirini, Anik
Jurnal Abdimas Bina Bangsa Vol. 5 No. 2 (2024): Jurnal Abdimas Bina Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jabb.v5i2.1174

Abstract

Sanitation, both household sanitation and environmental sanitation, are related units that influence each other. Some of the problems in Pindrikan Lor Village include a relatively dense population of ±5,930 people, some areas where the houses are close together, rubbish, puddles of water or flooding when it rains and still stunting in the area, this will of course have a big impact sanitation. This PkM aims to provide a correct understanding of the importance of sanitation for both the household and the environment, as well as providing prevention of the causes, impacts and ways of preventing it. Qualitative and quantitative methods, qualitative include observation stages in the field looking at the condition of the housing environment, drainage and waste, as well as asking directly to local residents, while for quantitative the test method is used regarding understanding both tests, before / pretest and after the material is explained / post-test, before the event closes. The activity was carried out on May 14 2024, on Floor 2 of the Village Office, attended by representatives of RT, RW, PKK and Village Heads and their staff, totaling around 40 participants. The results of the discussion, pre-post-test on Community Service included residents being enthusiastic in asking questions according to the theme and responding well, while the results of the pre-post-test were for understanding of sanitation to 84.63%, understanding of the impact of poor sanitation increased to 76.90%.
PENDAMPINGAN PENGELOLAAN PENYEDIAAN AIR BERSIH MASYARAKAT DUSUN MUJO DESA SUMOGAWE KABUPATEN SEMARANG Tutuko, Bambang; Wanto, Sri; Purwanto, Purwanto; Kustirini, Anik
Jurnal Abdimas Bina Bangsa Vol. 6 No. 1 (2025): Jurnal Abdimas Bina Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jabb.v6i1.1658

Abstract

In Mujo Hamlet, Sumogawe Village, Getasan District, there has been no effort to organize an institutional clean water supply program. So far, the community has held it independently, either individually or in groups of around five heads of families. The aim of this community service activity is to form an organizing institution for the management of clean water supply for the community and to create an initial design for the distribution of clean water networks to residents' homes. The implementation method begins with a location survey, outreach and audience with the community, monitoring and evaluation. The results of this activity are maps of the distribution of clean water pipe networks from springs to people's homes. By having a map of the distribution of clean water pipe networks, it is hoped that the community will participate together in forming an institution that organizes clean water supply and can carry out its implementation well.
Pendampingan Perencanaan Talitha Zhafira; Ahmad Hakim Bintang Kuncoro; Anik Kustirini; Mentari S Sitorus
Jurnal Informasi Pengabdian Masyarakat Vol. 1 No. 2 (2023): Mei: Jurnal Informasi Pengabdian Masyarakat
Publisher : Institut Nalanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47861/jipm-nalanda.v1i2.395

Abstract

Sidorejo Village, Bandongan sub-district, Magelang Regency, according to data from the Agriculture Service, has beef cattle which continues to increase every year. This made the village community continue to improve cattle farming. A good farm must have a conceptual and sustainable building infrastructure. The partner's problem with community service is that they want to plan a modern farm. The community service team is here to provide assistance and direction so that the site plans and enclosures are divided according to their respective functions. In the future the location of this farm will be used as a container for fermented cattle feed from straw by utilizing the surrounding straw waste. The result of the assistance from the PKM team is increased understanding and information on land layout and space placement in accordance with the concept of modern cattle farming. This can be seen from the increase in the percentage of pre-test and post-test from 35% to 65%.
Studi Perilaku Tiang Group Pada Lapisan Tanah Terlikuifaksi Situmorang, Adolf; Kustirini, Anik; Purwanti, Hani
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 1 (2024): Volume 14 Nomor 1, Maret 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i1.983

Abstract

Abstrak Likuifaksi merupakan satu fenomena yang terjadi pada lapisan tanah akibat gempa bumi. Pada saat terjadi likuifaksi tanah mengalami peningkatan tekanan air pori yang menyebabkan tanah kehilangan kuat geser sehingga mengalami penurunan tegangan efektif dan secara linier mengakibatkan penurunan kuat geser. Penelitian ini dibuat untuk mengetahui perubahan perilaku tiang akibat lapisan tanah terlikuifaksi disepanjang tiang. Semua analisa perubahan perilaku tiang dibandingkan dengan kondisi atau kondisi tidak ada lapisan terlikuifaksi, sehingga dapat diketahui perubahan perilaku tiang ketika ada lapisan teriluifaksi. Dari hasil analisa defleksi diketahui bahwa terjadi perubahan defleksi yang besar jika dibandingkan antara lapisan tidak terlikuifaksi dengan lapisan terlikuifaksi, yaitu dari 0,16 mm menjadi 4,32 mm atau meningkat sebesar 4.16 mm. Perubahan momen untuk lapisan tidak terlikuifaksi 23 kN menjadi 219 kN untuk kondisi lapisan terlikuifaksi atau meningkat sebesar 196 kN.m, hal yg sama pada perubahan daya dukung yang mengalami penurunan ketika terjadi likuifaksi, sehingga disimpulkan bahwa ada perubahan perilaku tiang jika terdapat lapisan terlikuifaksi. Kata kunci: likuifaksi, sondir, daya dukung tiang, defleksi   Abstract Liquefaction is a phenomenon that occurs in soil layers due to earthquakes. When liquefaction occurs, the water pressure of soil has increased which causes the soil to lose shear strength, resulting in a decrease in effective stress and linearly resulting in a decrease in shear strength. This research was conducted to determine changes of pile behavior due to liquefaction of the soil layer along the pile. All analyses of changes of pile behavior are compared with conditions where there is no liquefaction layer, so that changes of pile behavior can be seen when there is liquefaction layer of soil. The results of the deflection analysis, it is known that there is a large change in deflection when compared between the non-liquefaction layer and the liquefaction layer, namely from 0.16 mm to be 4.32 mm or increases 4.16 mm. The change in moment for the liquefaction layer is 23 kN to be 219 kN for the liquefaction layer condition or increases 196 kN.m, the same thing as the change in bearing capacity which decreases when liquefaction occurs, so it is concluded that there is a change of pile behavior if there is a liquefaction layer. Keywords: liquefaction, CPT, bearing capacity of pile, deflection
Modulus Elastisitas Beton Geopolimer Berbasis Fly ash PLTU Tanjungjati B Jepara Kustirini, Anik; Susilo, Edy; Widorini, Trias; Purnijanto, Bambang
Teknika Vol. 19 No. 1 (2024): Maret
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/teknika.v19i1.8748

Abstract

Beton geopolimer adalah beton yang dibuat tanpa menggunakan semen. Sebaliknya, fly ash—bahan sisa pembakaran batu bara di pembangkit listrik tenaga uap—dimanfaatkan (PLTU). Pada penelitian ini fly ash dari PLTU Tanjungjati B Jepara digunakan untuk menguji modulus elastisitas beton geopolimer sehingga diperoleh pemahaman yang jelas mengenai sifat-sifatnya. Tiga benda uji silinder 15/30 digunakan untuk menguji modulus elastisitas beton. Rata-rata modulus elastisitas beton geopolimer umur 28 hari sebesar 20.560,797 MPa. Model modulus elastisitas dan kuat tekan beton geopolimer dengan persamaan Ec = 12761 (f’c) 0,4657 diperoleh dari hasil regresi daya. Validasi dilakukan dengan korelasi, angka R2 = 0,9944 mendekati satu, artinya hubungan kuat tekan dengan modulus elastisitas sangat kuat atau valid. Nilai modulus elastisitas hasil laboratorium berbeda 0,338% dengan nilai modulus elastisitas SNI dan selisih nilai modulus elastisitas Hukum Hookes sebesar 0,018%. Grafik hasil laboratorium dan Hooke berimpit
Numerical and Field-Based Analysis of Soil Nailing for Slope Stability Adolf Situmorang; Anik Kustirini; Kukuh Wisnuaji Widiatmoko
Teknika Vol. 20 No. 2 (2025): Oktober
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/teknika.v20i2.12918

Abstract

Landslide occurrences in Indonesia are predominantly associated with soft soils and inadequate drainage conditions during periods of high-intensity rainfall. Nevertheless, the country’s diverse geological settings pose significant challenges for implementing effective landslide mitigation strategies, particularly as most existing studies are concentrated on specific islands, each characterized by distinct geotechnical and geomorphological conditions. In certain areas of Flores Island, landslides have been observed at relatively shallow depths and steep slope angles, often occurring in remote locations. Additionally, the tectonic setting of Flores Island—surrounded by multiple active seismic sources—increases the susceptibility to both rockfalls and earthquake-induced landslides. Soil nailing has emerged as a promising stabilization technique in such conditions, particularly where subsurface materials exhibit high resistance to penetration (N-SPT > 60). Despite the steep terrain, the technique remains viable due to its adaptability and minimal disturbance to the existing slope geometry. Stability analyses conducted using both the FEM and LEM under static loading conditions indicate that soil nailing is effective in reinforcing the slope without inducing significant deformation. Furthermore, the reinforced slopes demonstrate sufficient stability under seismic loading, satisfying the design earthquake criteria stipulated by the Indonesian Standard. 
Co-Authors Adolf Situmorang afrida ranu l Agus Muldiyanto, Agus Ahmad Hakim Bintang Kuncoro Bagus Acung Billahi Bambang Tutuko Budiningrum, Dyah Setyati Cahyono, Dhamang Budi Chatarina Umbul Wahyuni Dhamang Budi Cahyono Dyah Setyati Budiningrum Edy Susilo Edy Susilo, Edy galuh cahyo n.w Kukuh Wisnuaji Widiatmoko l, afrida ranu Mahasukma, Devinda Mentari S Sitorus n.w, galuh cahyo pratiwi, yesina intan Purnijanto, Bambang Purnijanto, Bambang Purwanti, Hani Purwanto Purwanto Purwanto Purwanto RA, Andi Ainun Zuqny Nurin Setyati Budiningrum, Diah Sulistyaningsih, Ainaya Suwiyono, Timbul Catur Talitha Zhafira Talitha Zhafira Timbul Catur Suwiyono Trias Widorini Utama, Tegar Yogha yesina intan pratiwi