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All Journal RACIC : Rab Construction Research Civil Engineering Journal Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Bandar: Journal of Civil Engineering Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Rita Tahir Lopa
Departemen Teknik Sipil, Fakultas Teknik, Universitas Hasanuddin
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Transportation

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Analisis Pemecah Gelombang (Breakwater) Di Bamballoka Kabupaten Pasangkayu anri rusady; Rita Tahir Lopa; Imam Rohani
BANDAR: JOURNAL OF CIVIL ENGINEERING Vol 1 No 1 (2018): BANDAR: JOURNAL OF CIVIL ENGINEERING
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/bjce.v1i1.170

Abstract

Abstrak Analisis skripsi ini bertujuan untuk mengetahui aman atau tidaknya bangunan pengaman pantai yang berada di Bambaloka Kabupaten Pasangkayu, terhadap stabilitas kuat dukung tanah, geser dan guling dan studi ini bertujuan untuk mengetahui tipe bangunan pengaman pantai yang cocok untuk pantai Bambaloka. Dari hasil yang di dapatkan berdasarkan analisis yang di lakukan dapat di simpulkan beberapa hal mengenai analisis stabilitas bangunan pengaman pantai ( Breakwater ) yang berada pada pantai Bambaloka, Kecamatan Baras Kabupaten Pasangkayu, Sulawesi Barat. Dapat di simpulkan sebagai berikut, Gaya terhadap gelombang, = 0,7 m, = 0,17 m, Stabilitas bangunan pengaman pantai terhadap kuat dukung tanah = - 44,4 kN/m² < = 7,393 kN/m² ( Aman ) Stabilitas Pemecah Gelombang terhadap geser dan penggulingan Terhadap geser = 0 < 2 ( Aman ) Terhadap guling = 0,116 < 2 ( Aman ). Kata Kunci : Analisis, Breakwater, Geser, Guling, Stabilitas, Pengaman Pantai. Abstrak The analysis this thesis aims to determine whether or not a safe beach building located in Bambaloka Pasangkayu Regency, to the strong stability of soil support, shear and rolling and this study aims to determine the type of beach safety building suitable for Bambaloka beach. From the results obtained based on the analysis carried out, it can be concluded that there are several things concerning the stability analysis of the beach safety building (Breakwater) located on the coast of Bambaloka, Baras District, Pasangkayu Regency, West Sulawesi. It can be summarized as follows, force against wave, l_c = 0.7 m, l_t = 0.17 m, stability of coastal protection building against soil bearing strength σ_maks = - 44.4 kN / m² <q_a = 7.393 kN / m² (safe ) Stability of Breakwaters to shear and rolling Against shear = 0 <2 (Safe) Against rolling = 0.116 <2 (Safe). Keywords : Analysis, Breakwater, Slide, Bolster, Stability, Beach Safety.
Sosialisasi Peraturan Daerah Sempadan Sungai Dalam Rangka Pengendalian Banjir Sungai Maros Rita Tahir Lopa
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 3 No 1 (2020): Penguatan Masyarakat melalui Pemanfaatan Teknologi
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v3i1.120

Abstract

Maros Regency is one of the regencies in South Sulawesi Province whose river management system is not optimal yet. Based on this case, the Maros River flooding problem in Maros Regency must be dealt with as soon as possible in a good and correct manner and community participation is needed in terms of understanding river border regulations. The purpose of this activity is to provide socialization to the community to increase community knowledge about river border regulations. The method is used to achieve the stated goals and targets is to carry out river schools which are expected to be useful for the local community. Activities undertaken will involve the community. The implementation of this community service activity, in the form of socialization of river boundary regulations in the context of flood control, is expected that community knowledge about river border will increase and patterns of community behavior regarding the handling of river border areas can be increased and will have a positive impact on improving river management by the community. The knowledge that is possessed is expected to be transmitted and become an example for the community around Maros Regency
Penyuluhan Mitigasi Bencana pada Kawasan Sempadan Pantai Galesong Utara Kabupaten Takalar Riswal karamma; Muh Saleh Pallu; Muh Arsyad Thaha; Farauk Maricar; Rita Tahir Lopa; Mukhsan Putra Hatta; Silman P Manda; A Subhan Mustari; Bambang Bakri; Farid Maricar; A Ilda Puspita
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 4 No 2 (2021): Community Empowerment through Health Awareness in the New Normal
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v4i2.215

Abstract

Coastal community education is needed to maintain the balance of coastal border areas. The purpose of this activity is to increase public awareness in dealing with and reducing disaster risk and provide a basic understanding of disaster mitigation in coastal border areas. Disaster mitigation is an activity to reduce the impact of disasters. The main components that need to be considered in understanding disasters are hazard, vulnerability, resilience, and risk. An understanding of the four main components will determine how the approach and action to disaster must be taken. The data collection method was carried out by observing the coastal border area in the Takalar area, then conducting a review of data or documents related to the border area and discussions with the community who live around the coastal border in North Galesong District to complete the results of the data review. In this service activity, counseling is carried out, one of which describes the level of danger of abrasion and the efforts made to reduce the risk. The step taken as an effort to reduce the risk of abrasion is to carry out disaster mitigation efforts. Implementation of disaster mitigation counseling in coastal border areas is a form of non-structural disaster mitigation in terms of strengthening community capacity. This outreach activity motivates the community to strengthen capacity and protect the environment around the coastal border, especially to prevent abrasion.
PENGATURAN ZONASI DI DAERAH SEMPADAN SUNGAI MANDAR, KECAMATAN TINAMBUNG KABUPATEN POLEWALI MANDAR Ali Akbar Tasrif; Rita Tahir Lopa; Farouk Maricar
Racic : Rab Construction Research Vol 7 No 2 (2022): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i2.2997

Abstract

Mandar River is one of the rivers in West Sulawesi Province which is located in Polewali Mandar Regency and comes from one of the foot of the mountain with a length of about 150 km. The use of Mandar River water, apart from being a source of air for the surrounding community, is also used as a power plant, so that the Mandar River cannot be separated from the lives of some people who live in the border areas of the Mandar River. Over time, activities in the Mandar River border area have increased, especially in the construction of residences and other buildings such as residential buildings. This study aims to identify the use of space in the Mandar River border area and provide recommendations for spatial planning by zoning the use of space in the area and reducing the impact of flooding. The method used in this research is descriptive qualitative with spatial analysis. The results of this study are the zoning arrangements for regional activities in the form of conservation areas and border areas, while the zoning of cultivation areas are river conservation areas and agricultural and plantation areas. The border area of ​​the Mandar River for structuring more arrangements is right on the edge, where the area is a flood-prone area with relocation development or river normalization.
Dam-Break Energy of Porous Structure for Scour Countermeasure at Bridge Abutment Ira Widyastuti; M. Arsyad Thaha; Rita Tahir Lopa; Mukhsan Putra Hatta
Civil Engineering Journal Vol 8, No 12 (2022): December
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2022-08-12-019

Abstract

The aim of the study is to determine the structure for energy absorption in order to countermeasure the scouring on the bridge abutment. Consider a porous structure for energy absorption, which can reduce flow velocity and depth of scouring due to its porosity. The energy absorber plate demonstrated in triangular shape with several porous as submerged barrier. The investigation was conducted in laboratory and placed the abutment in the middle of the channel with a distance of 3Lb, 5Lb, 7Lb and 9Lb. The plate area consists of 0% (MP1), 5% (MP2), and 10% (MP3). The scour depth measurement (ds) is carried out at 6 crucial points in the abutment area. Comparisons between experimental measurements and a numerical prediction model are presented. The experimental results show that the percentage of frictional velocity in the inhibition area for each pore opening before the obstacle, 31.42% (decreasing), - 9.27% (increasing), and -32.92% (increasing), respectively. Furthermore, the optimum position of the porous energy absorber at 9Lb to the abutment. The magnitude decreases of scour depth obtained from MP2. It can be concluded that the placement of energy absorbers can lead to damping forces. It also found that the porous structures could be beneficial for motion damping and absorber of the scouring. Doi: 10.28991/CEJ-2022-08-12-019 Full Text: PDF
Penggunaan Blok Pracetak Heksagonal dan Vegetasi Rumput untuk Mengurangi Limpasan Permukaan Pada Tebing Arsyuni Ali Mustary; Muh Saleh Pallu; Rita Tahir Lopa; Arsyad Thaha
Retii Prosiding Seminar Nasional ReTII ke-12 2017
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Curah hujan merupakan faktor penting dalam laju  limpasan permukaan (runoff) apalagi jika lahan tersebut tidak tertutupi oleh Vegetasi , berbagai  metode  untuk mengurangi limpasan permukaan yang selama ini digunakan namun metode yang ada belum mampu menjawab seluruh permasalahan dan cenderung tidak memperhatikan efek terhadap lingkungan, namun seiring dengan berkembangnya konsep restorasi sungai dan restorasi lereng,  menjadi sebuah tuntutan dalam perlindungan lereng  agar karakteristik ekologi tetap terjaga. Berbagai jenis pelindung tebing  memiliki kelebihan dan kekurangan baik itu yang murni vegetasi maupun yang murni struktur, untuk itu kami mengevaluasi dan mendesain model pelindung tebing dari kedua metode tersebut, yaitu dengan mendisain  Blok pracetak berlubang  dan memvariasikan dengan vegetasi rumput sehingga diperoleh manfaat dari kedua metode tersebut.Tujuan dari penelitian ini adalah mengetahui besarnya debit limpasan aliran permukaan (run off) yang terjadi pada variasi tutupan tanah dengan Blok Pracetak Berlubang dan Vegetasi rumput pada kemiringan permukaan tanah  15°, 25° dan 40°.Pengambilan sampel dilakukan  diawali dengan kalibrasi Curah hujan sehingga diperoleh 3 (tiga) jenis Curah Hujan, selanjutnya membuat skala model  dengan  kemiringan tanah  15°, 25° dan 40° pada Bak Rainfallsimulator, selanjutnya variasi model tutupan tanah termasuk juga model Blok Pracetak Berlubang di susun pada model  tebing dan dilakukan running dengan 3 Varian Curah Hujan , 4 (empat) varian  model tutupan lahan, dengan 3 (tiga) varian kemiringan , dari ketiga varian Curah Hujan jumlah limpasan rata-rata menunjukkan tutupan tanah menggunakan  Blok Pracetak Berlubang kombinasi vegetasi rumput dapat menurunkan limpasan permukaan secara signifikan yaitu sebesar 41.06 % pada kemiringan 15° , pada kemiringan 25° penurunan limpasan yang terjadi sebesar 45.41 %, sedangkan pada kemiringan 40° penurunan limpasan yang terjadi sebesar 41.77 % dari tanah tanpa tutupan , juga semakin curam kemiringan tanah maka jumlah limpasan permukaan juga semakin tinggi. Kata Kunci : limpasan, Tebing , Blok Pracetak Hexagonal, Vegetasi, Rainfallsimulator.
Co-Authors A Ilda Puspita Ali Akbar Tasrif anri rusady Arsyad Thaha Arsyuni Ali Mustary Bambang Bakri Farauk Maricar Imam Rohani Ira Widyastuti M. Arsyad Thaha Maricar, Farouk Muh Arsyad Thaha Muh Saleh Pallu Muhammad Farid Maricar Mukhsan Putra Hatta, Mukhsan Putra Mustari, Andi Subhan Riswal Karamma Silman P Manda