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Analisis Stabilitas Lereng Bendungan Terhadap Beban Gempa sebagai Upaya Pengurangan Bencana (Studi Kasus: Bendungan Jlantah) Nurul Chayati; Muhammad Hasan Wicaksono; Fadhila Muhammad Libasut Taqwa
Jurnal Ilmiah Universitas Batanghari Jambi Vol 23, No 1 (2023): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v23i1.2249

Indonesia is a country that has quite high seismic activity and is prone to earthquake hazards, so the construction of embankment dams in Indonesia needs to pay attention to stability against collapse due to soil mass and earthquake loads. Jlantah dam is located in Karanganyar, Central Java. This dam is planned for irrigation needs of 1493 hectares and raw water of 150 liters/second. This study aims to determine the safety factor (Fs) on the Jlantah Dam body. The method used is a quantitative data analysis method, the calculation of the earthquake coefficient corrected by OBE and MDE, carried out with the help of a computer program, namely GeoStudio 2012. Meanwhile, if the earthquake coefficient is known not to be Fs 1.5. The method used is based on references from KP 02-Planning Criteria for Main Building Section and KP 06-Planning Criteria for Parameters Section, and Pd T-14-2004-A. The terms (Fs 1,2) which are used as the theoretical basis are quoted from the theory of Prof. Hoek (1981) stated that by knowing the earthquake coefficient, Fs 1.2 can be used, while if the earthquake coefficient is not known Fs 1.5 Analysis of Earthquake Backfill Type Dam Stability. From the results of the study, it was found that at the time of maximum water and the earthquake for the road dam body was declared from a good structural failure. The results of the bottom study on MDE earthquake conditions from the maximum water level obtained Fk > 1.0 Fk minimum, the maximum water level obtained Fk > 1, 2 Fk minimum with OBE earthquake conditions.

ANALISA PEKERJAAN TIMBUNAN COVERDAM PROYEK PEMBANGUNAN BENDUNGAN JLANTAH KABUPATEN KARANGANYAR Rohmad Fitri Yadi; Purwanti Sri Pudyastuti; Muhammad Hasan Wicaksono
Jurnal Education and Development Vol 11 No 2 (2023): Vol.11 No.2.2023
Publisher : Institut Pendidikan Tapanuli Selatan

Bendungan merupakan salah satu bangunan infrastruktur bidang sumber daya air yang penting dan memberikan manfaat bagi masyarakat setempat. Saat ini masyarakat sudah dihadapkan pada kenyataan bahwa ketersediaan sumber daya air sudah sangat kritis karena kondisi iklim yang fluktuatif antara debit hujan yang besar dan air yang semakin hari semakin menurun. Salah satu penanganan yang terbaik adalah dengan pendekatan struktural, yaitu membangun penampung–penampung air seperti bendungan.Penelitian dilkukan dengan cara survey lapangan dengan kegiatan wawancara dan observasi di lapangan. Analisa yang digunakan pada penelitian ini,yaitu analisa mengenai topik yang menyangkut tentang pekerjaan timbunan coverdam pada zona inti,zona filter,zona random,dan zona rip-rap proyek pembangunan bendungan jlantah jatiyoso. Dari perhitungan volume yang telah dilakukan dengan menggunakan metode potongan melintang rata-rata bahwa kebutuhan timbunan pada bangunan coverdam zona inti adalah 31.826,9970 m3 ,zona filter sebanyak 20.363,5303 m3 ,zona random sebanyak 546.874,987 m3, serta zona rip-rap sebanyak 34.384,15 m3.Pengujian kepadatan lapangan dengan menggunakan metode sandcone test dan water replcement test.Pengujiann permeabilitas dengan menggunakan metode falling head test.

STABILITAS PROTECTION LERENG SPILLWAY BENDUNGAN JLANTAH Muhammad Hasan Wicaksono; Redho Muktadir
TAPAK [Teknologi Aplikasi Konstruksi] : Jurnal Program Studi Teknik Sipil Vol 13, No 2 (2024): Mei 2024
Publisher : Prodi Teknik Sipil Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/tp.v13i2.3394

Pekerjaan konstruksi pada area spillway harus sangat diperhatikan. Slope di sekitar lereng spiilway perlu diperhatikan stabilitasnya. Hal ini dikarenakan terdapat litologi batuan penyusun dari muda ketua Tuff Lapili, Aglomerat dan Breksi Vulkanik. Jenis litologi ini memiliki tingkat pelapukan yang berbeda beda maka dari itu perlu ada proteksi lereng galian dimana proteksi lereng). Dengan menganalisis stabilitas slope kita dapat mengetahui factor keamanan, dan slope protection galian spiilway yang aman di area spillway. analisis dilakukan dengan bantuan program komputer yaitu GeoStudio 2018. Berdasarkan hasil analisis pemodelan numerik slope protection pada proteksi lereng spillway, menggunakan 4 tipe proteksi lereng. Proteksi lereng tipe 1 menggunakan Shotcrete 10 cm + Single Wiremesh Rockbolt 6m tanpa Waller, Proteksi lereng tipe 2 menggunakan Shotcrete 10 cm + Single Wiremesh Rockbolt 9m tanpa Waller, Proteksi lereng tipe 3 menggunakan Shotcrete 15 cm + Single Wiremesh Rockbolt 9m Waller 4D13 dan Proteksi lereng tipe 4 menggunakan geomat . Dari hasil analisis protection pada galian spillway, dengan menggunakan 4 tipe pada kondisi Tanpa gempa nilai FK ≥ 1.5 dan pada kondisi dengan gempa nilai FK ≥ 1.1.

STABILITAS PROTECTION LERENG SPILLWAY BENDUNGAN JLANTAH Wicaksono, Muhammad Hasan; Muktadir, Redho
TAPAK [Teknologi Aplikasi Konstruksi] : Jurnal Program Studi Teknik Sipil Vol 13, No 2 (2024): Mei 2024
Publisher : Prodi Teknik Sipil Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/tp.v13i2.3394

Pekerjaan konstruksi pada area spillway harus sangat diperhatikan. Slope di sekitar lereng spiilway perlu diperhatikan stabilitasnya. Hal ini dikarenakan terdapat litologi batuan penyusun dari muda ketua Tuff Lapili, Aglomerat dan Breksi Vulkanik. Jenis litologi ini memiliki tingkat pelapukan yang berbeda beda maka dari itu perlu ada proteksi lereng galian dimana proteksi lereng). Dengan menganalisis stabilitas slope kita dapat mengetahui factor keamanan, dan slope protection galian spiilway yang aman di area spillway. analisis dilakukan dengan bantuan program komputer yaitu GeoStudio 2018. Berdasarkan hasil analisis pemodelan numerik slope protection pada proteksi lereng spillway, menggunakan 4 tipe proteksi lereng. Proteksi lereng tipe 1 menggunakan Shotcrete 10 cm + Single Wiremesh Rockbolt 6m tanpa Waller, Proteksi lereng tipe 2 menggunakan Shotcrete 10 cm + Single Wiremesh Rockbolt 9m tanpa Waller, Proteksi lereng tipe 3 menggunakan Shotcrete 15 cm + Single Wiremesh Rockbolt 9m Waller 4D13 dan Proteksi lereng tipe 4 menggunakan geomat . Dari hasil analisis protection pada galian spillway, dengan menggunakan 4 tipe pada kondisi Tanpa gempa nilai FK ≥ 1.5 dan pada kondisi dengan gempa nilai FK ≥ 1.1.

Evaluasi Jaringan Drainse Perkotaan di Jalan Raya Kemang, Kabupaten Bogor Sungkana, Bagas Krya; Heryansyah, Arien; Wicaksono, Muhammad Hasan; Syaja'ah, Siti Kholifah
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 10 No. 1 (2026)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v10i1.21917

Inundation on Jalan Raya Kemang (the Parung-Bogor road section in the Kemang area) is a common problem, especially during the high-intensity rainy season, disrupting public mobility and causing traffic congestion. This study aims to identify the factors causing the inundation and to evaluate the existing conditions of the drainage network system in the area. The methods used include hydrological and hydraulic analysis. Hydrological analysis is utilized to calculate the design flood discharge, while hydraulic analysis is used to analyze the capacity of the existing drainage channels.The results of the hydrological analysis show that the total design flood discharge from upstream to downstream is 1.08 m³/s. The hydraulic analysis on the existing channel dimensions of (1.2 x 1) meters indicates a channel capacity of 1.51 m³/s. Theoretically, the channel dimensions are capable of accommodating the design discharge. However, field observations show that the main factor causing the inundation is the presence of mud and sand sedimentation, approximately 30 cm high, inside the channels. This sedimentation causes a significant reduction in flow capacity. After accounting for the sedimentation, the channel capacity decreases to 0.962 m³/s, which is smaller than the design discharge at the inundation point (0.977 m³/s), causing water to overflow onto the road. Furthermore, the lack of drainage inlets is also a contributing factor to the inundation.It is concluded that the inundation on Jalan Raya Kemang is not caused by inadequate channel dimensions but rather by high sedimentation and a lack of drainage inlets

Analisis Potensi Keruntuhan Bendungan Bringe Akibat Overtopping dan Pemetaan Area Terdampak dengan Menggunakan HEC-RAS 6.6.0 Fahrezi, Muhamad Azmi; Wicaksono, Muhammad Hasan; Hariati, Feril
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 10 No. 1 (2026)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v10i1.22015

Dams are vital infrastructure that play an important role in irrigation water supply, flood control, and water resource conservation. However, dam failure can lead to catastrophic flooding that threatens human lives and causes significant material losses. This study aims to analyze the potential failure of Bringe Dam due to the overtopping mechanism and to identify the characteristics and distribution of flood inundation in downstream areas using the HEC-RAS 6.6.0 software. The simulation results show that the dam failure due to overtopping produced a peak outflow discharge of 103.69 m³/s with a breach formation time of approximately 1.24 hours. The maximum inundation area reached 77.49 hectares, affecting several villages downstream, with a maximum water depth of 8.11 m and an average depth of 2.07 m in the affected areas. Based on these results, it can be concluded that Bringe Dam poses a high hazard potential in the event of a failure caused by overtopping. Therefore, mitigation measures such as increasing spillway capacity, monitoring water surface elevation regularly, and developing an emergency response plan and evacuation routes for downstream communities are highly recommended.

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