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All Journal Jurnal RISET Geologi dan Pertambangan International Journal of Disaster Management Jurnal Teknik Sipil Journal of The Civil Engineering Student
Khaizal Jamaluddin
Department Of Civil Engineering, Syiah Kuala University
Humanities Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Environmental Science Social Sciences Transportation

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ANALISIS KESTABILAN LERENG BATU DI JALAN RAYA LHOKNGA KM 17,8 KABUPATEN ACEH BESAR Ibnu Rusydy; Nafisah Al-Huda; Khaizal Jamaluddin; Devi Sundary; Gartika Setiya Nugraha
JURNAL RISET GEOLOGI DAN PERTAMBANGAN Vol 27, No 2 (2017)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (926.66 KB) | DOI: 10.14203/risetgeotam2017.v27.452

Abstract

Penelitian kestabilan lereng batuan menggunakan metode analisis kinematik lereng dan klasifikasi massa batuan dilakukan di lereng pinggir jalan Banda Aceh – Calang di Km 17,8 di Kecamatan Lhoknga Kabupaten Aceh Besar. Penelitian ini bertujuan untuk mengetahui jenis longsoran yang akan terjadi di masa yang akan datang, menilai kualitas massa batuan pembentuk lereng, dan tingkat kestabilannya berdasarkan klasifikasi SMR. Akuisisi data struktur massa batuan dilakukan di sepanjang lereng menggunakan metode scanline. Data yang diambil berupa arah kemiringan bidang diskontinuitas, arah bidang, dan kondisi bidang diskontinuitas bidang berupa kemenerusan, kekasaran, bukaan, isian, luahan air dan tingkat perlapukan. Analisis kinematik lereng didapatkan berdasarkan hasil proyeksi stereografi dan analisis kualitas serta kestabilan lereng batuan berdasarkan parameter RMR dan SMR. Hasil analisis kinematik lereng menunjukkan jenis longsoran yang akan terjadi di lereng 1 berupa longsoran  baji dan planar. Di lereng 2 dimungkinkan terjadinya longsoran gulingan/toppling karena bidang joint set yang berlawanan dengan arah lereng. Nilai RMR di lereng 1 sebesar 63 dengan kategori batuan Bagus dan RMR lereng 2 sebesar 57 kategori batuan sedang. Nilai SMR terendah di lereng 1 sebesar 29 (kategori Buruk) untuk longsoran planar dan 53 (kategori Sedang) di lereng 2 longsoran gulingan. Lereng 1 memiliki probabilitas kejadian longsor planar sebesar 60%.Rock slope stability was assessed using the slope kinematic analysis method and rock mass classification on the roadside slope of Banda Aceh - Calang at 17.8 Km in Lhoknga Sub-district, Aceh Besar District. This study aims to determine the types of landslides that will occur in the future by determining the Rock Mass Rating (RMR) and analyzing stability based on the Slope Mass Rating (SMR). The data acquisition of rock mass structures performed the scan line method along the slope. The data taken are the dip and the strike of the discontinuity plane, and the conditions of discontinuity in the form of persistence, aperture, roughness, infilling, weathering and Groundwater conditions. Slope kinematic analysis was conducted based on stereographic projection and analyses of both rock slope quality and stability were based on RMR and SMR parameters. The result of the slope kinematic analysis shows that landslides that occur in slope 1 will be in wedge and planar forms. On slope 2, possible failure is in the form of toppling due to the joint set positioned opposite to the slope direction. The RMR value in slope 1 is 63, categorized as Good rock and the RMR in slope 2 is 57, which is in the medium rock category. The lowest SMR value in slope 1 was 29 as a Bad class for planar failure, and 53 as a Normal category in slope 2 is toppling failure. Slope 1 has a 60 % probability of a planar failure event.
Estimation of Site Amplifications from Shear-Wave Velocity at Pyroclastic Deposits and Basins in Aceh Tengah and Bener Meriah District, Aceh Province, Indonesia Ibnu Rusydy; Khaizal Jamaluddin; Eldina Fatimah; Syafrizal Syafrizal; Fauzi Andika; Yoshinori Furumoto
International Journal of Disaster Management Vol 1, No 1 (2017): June
Publisher : TDMRC, Universitas Syiah Kuala

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Abstract

Earthquake on July 2, 2013, destroyed several buildings in Aceh Tengah district and Bener Meriah district of Aceh Province. This earthquake gives Aceh government a clue that the seismic hazard map must become the reference in development plan in future. To respond this idea, we conduct the research and try to estimate the amplification factor for developing seismic hazard maps of those districts. This study aims to determine the average shear wave velocity up to the depth of 30 meters (Vs30) and the amplification factor of Aceh Tengah district and Bener Meriah district, to build the seismic hazard map of both districts. In this study, we use the MASW (Multi-Channel Analysis of Surface Waves) with 24 geophones in the frequency of 10 Hz at 10 locations to determine the Vs30 beneath the surface. The soil and rock classification from ASCE 2010 and SNI 1726:2012 used to classify the soil/rock based on Vs30 and calculate the predicted amplification factor using the Borcherdt Eeri equation. The result of this study reveals that the range of Vs30 in the study area is 76 m/s – 308 m/s. The loosest sediment has 76 m/s located at point 2 in Aceh Tengah district. The shear wave velocity of 76 m/s classifies as soft soil (SE). Based on the calculation, the pyroclastic deposit and sediment in the basin of the study area will be amplified the seismic wave in the range of 2.9 to 3.3 times. In the future, we suggest conducting another geophysical survey to determine the correct amplification factor to improve the quality of seismic hazard map.
STUDI AWAL: ANALISA KECEPATAN GELOMBANG GESER (Vs) PADA CEKUNGAN TAKENGON DALAM UPAYA MITIGASI GEMPA BUMI Ibnu Rusydy; Khaizal Jamaluddin; Eldina Fatimah; Syafrizal Syafrizal; Fauzi Andika
JURNAL TEKNIK SIPIL Vol 6, No 1 (2016): Volume 6, Nomor 1, September 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

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Abstract

Abstract: MASW survey to determine the shear wave velocity (Vs) had been conducted in Takengon basin, Aceh Tengah district. The survey aims to identify sediment layers based on Vs analysis and its correlation with the amplification factor. The Vs yielded from MASW survey was based on the dispersion of Rayleigh wave generated by 4 kg sledgehammer and recorded on 24 geophones with 10 Hz. There are 3 locations of MASW measurement in Takengon basin, the first one located on the edge of the basin, the second location was in the middle of the basin, and the last one was located in the southern. The results of Vs from MASW then compared with soil type classification from ASCE 2010 and SNI 1726: 2012. The Vs in the first location dominated by a layer of soft soil (SE) with the Vs less than 175 m/sand indicate as the young sediment in the edge of the basin. The amplification factor is estimated to be 1.2 times of bedrock acceleration. On the second location, Vs ranged between 275-283 m/s and categorized as stiff soil (SD). This category concluded that, in the middle of the Takengon basin, the sediment was consolidated, and the amplification factor would be smaller compared to the first location. On the thirst location, in depth of 6.3 meter and constantly down to 30 meter, there is very dense soil or soft rock (SC) with Vs 372 m/sec in the form of sandstone. The Construction of high-rise buildings is possible around this third location as long as the foundation of the building should reach the depth of very dense soil (SC) at 6.3 meters.Keywords : Shear wave velocity, Vs, Takengon Basin, MASWAbstrak: Survei MASW untuk mengetahui kecepatan gelombang geser (Vs) telah dilakukan di Cekungan Takengon Kabupaten Aceh Tengah. Survei tersebut bertujuan untuk mengetahui kondisi tanah berdasarkan analisa Vs dan hubungannya dengan penguatan gelombang gempa bumi (faktor amplifikasi). Nilai Vs yang didapatkan dari MASW dengan cara memanfaatkan dispersi gelombang permukaan rayleigh dari sumber seismik berupa palu 4 kg dan terekam pada 24 geophone vertikal 10 Hz. Terdapat 3 titik pengamatan Vs di Cekungan Takengon, titik pertama di pinggir cekungan dekat perbukitan, kedua di tengah-tengah cekungan dan ke-tiga di sisi selatan. Hasil pengukuran Vs dari MASW akan dibandingkan dengan pengkelasan jenis tanah dari ASCE 2010 dan SNI 1726:2012. Hasil MASW menunjukkan bahwa nilai Vs di titik pertama didominasi oleh lapisan tanah lunak (SE) dengan nilai Vs kurang dari 175 m/det yang mengindikasi lapisannya masih muda. Di titik pertama ini, efek amplifikasi diperkirakan sebesar 1,2 kali dari nilai percepatan batuan dasar. Di titik kedua, nilai Vs antar 275 – 283 m/det dan masuk dalam kategori tanah sedang (SD). Kategori SD menunjukkan bahwa di tengah-tengah Cekungan Takengon endapannya lebih tua dan terkonsolidasi sehingga efek amplifikasi akan lebih kecil dibandingkan dengan titik pertama. Pada titik ketiga, dari kedalaman 6,3 meter sampai menerus ke bawah ditemukan lapisan tanah keras atau batuan lunak (SC) dengan nilai Vs 372 m/det berupa batupasir. Pembangunan gedung bertingkat tinggi dimungkinkan di sekitar titik ke-tiga ini dengan syarat pondasinya mencapai kedalaman tanah keras (SC) di 6,3 meter.Kata kunci : Kecepatan Gelombang Geser,Vs, Cekungan Takengon, MASW
PERBANDINGAN KUAT TEKAN SILINDER TAK TERKEKANG DENGAN CONE INDEKS PADA TANAH DICAMPUR DENGAN SEMEN Khaizal Jamaluddin
JURNAL TEKNIK SIPIL Vol 3, No 2 (2014): Volume 3, Nomor 2, Januari 2014
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

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Abstract

Since 1981, Indian geotechnical expert have been introduced shear strength of soil is cone index (CI). Recently, common existing shear strength index in soil mechanic studies such as N-SPT, qc-CPT.However, the cone index (CI) parameter till in this time not yet been made by standard of the testing of soil sample in the soil mechanics laboratory. Pursuant to this problem, we have correlated cone index (CI) with unconfined compression strength (qu). The research used two  measurement are unconfined compression and penetration ofcone bar silinder into soil sample. Diameter cone bar penetration is 0.5 cm, high 7 cm and cone angle part of 60 degree. The soil samples for research from Indrapuri sub district, Aceh Besar. For strength variation soil sample mixed cement with content 0%, 3%, 6% and 9% with waiting periode of samples 0, 2 and 4 days. The results of research showed good and strong correlation between cone index (CI) and unconfined compression strength (qu). Parameters with R2 80% from linear comparison.
KARAKTERISTIK GEOTEKNIK LAPISAN SEDIMEN DI KECAMATAN KUTA ALAM, BANDA ACEH MENGGUNAKAN METODE GELOMBANG PERMUKAAN Khaizal Jamaluddin; Muhammad Budi; Syukri Syurbakti; Hendra Gunawan
JURNAL TEKNIK SIPIL Vol 4, No 3 (2015): Volume 4, Nomor 3, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

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Abstract

Abstract : Surface wave is the latest method that can estimate the depth, stiffness of the soil.This method has been developed and intensive used in geotechnical at the end of 1999.The study focused on three sites: Beurawe site, Lampulo and Lambaro Skep district of Kuta Alam in Banda Aceh.Field tests using the Multi-channel analysis of surface waves (MASW).In thetest, the sediment layers were characterized by depth and shear wave velocity parameters.The results suggests thatcharacteristics of the soil layer through shear wave velocity parameters per depthcan provide subsurface geotechnical information.It can complement data from the conventional method which has been used.Keywords : Geotechnic, MASW, Shear wave velocityAbstrak : Gelombang permukaan merupakan metode terkini yang dapat mengestimasi kedalaman, kekakuan dari lapisan tanah. Metode ini telah dikembangkan dan mulai digunakan di dalam geoteknik di akhir tahun 1999. Penelitian fokus pada tiga site penyelidikan yaitu site Beurawe, Lampulo dan Lambaro Skep di Kecamatan Kuta Alam Banda Aceh. Pengujian lapangan menggunakan Multichannel Analysis of Surface Waves (MASW). Di dalam pengujian, lapisan sedimen dikarakteristik dengan kedalaman dan parameter kecepatan gelombang geser. Hasilnya memberikan gambaran bahwa karakteristik lapisan tanah melaluiparameter kecepatan gelombang geser per kedalaman dapat memberikan informasi geoteknik bawah permukaan. Hal ini dapat melengkapi data dari metode konvensional yang selama ini digunakan.Kata kunci : Geoteknik, MASW, Kecepatan gelombang geser
Model Lapisan Geologi Teknik Permukaan Menggunakan Metode Gelombang Geser Di Kecamatan Darul Imarah Aceh Besar Fergy Hafiz Utama Simatupang; Khaizal Jamaluddin; Irwandi Irwandi
Journal of The Civil Engineering Student Vol 4, No 3 (2022): Volume 4 Nomor 3 Desember 2022
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/journalces.v4i3.19224

Abstract

AbstrakAceh Besar, salah satu Kabupaten di Provinsi Aceh, merupakan daerah dengan potensi pembangunan infrastruktur yang baik. Dalam perencanaan pembangunan, parameter kekerasan tanah menjadi salah satu factor yang sangat menentukan kualitas infrastruktur yang akan dibangun, dikarenakan lapisan tanah lunak memiliki daya dukung yang lemah dalam perencanaan bangunan sipil yang aman. Tujuan dari penelitian ini adalah untuk memperoleh data dari lapisan bawah permukaan berdasarkan parameter kecepatan gelombang geser (Vs). Penelitian ini dilakukan pada 12 titik di Kecamatan Darul Imarah Kabupaten Aceh Besar. Nilai kecepatan gelombang geser (Vs) yang digunakan untuk menentukan parameter kekerasan tanah dapat diperoleh dengan menggunakan metode MASW (Multichannel Analysis of Surface Waves). Hasil yang diperoleh dari penelitian ini menyatakan bahwa pada 12 titik yang dilakukan penelitian pada Kecamatan Darul Imarah Kabupaten Aceh Besar terdapat tiga kategori klasifikasi tanah, yaitu Tanah Lunak (SE), Tanah Sedang (SD), dan Tanah Keras (SC). Rentang nilai Vs30 terendah adalah sebesar 62 m/s dan nilai Vs30 tertinggi sebesar 672 m/s. Dari penelitian ini dapat disimpulkan bahwa klasifikasi tanah berdasarkan SNI 1726-2019 pada Kecamatan Darul Imarah Kabupaten Aceh Besar terbagi menjadi tiga kategori yaitu, 4 titik dengan klasifikasi tanah lunak (SE) yaitu, titik 4 (Garot), titik 5 (Lamreung), titik 6 (Ulee Tuy), dan titik 10 (Geundring), 6 titik dengan klasifikasi tanah sedang (SD) yaitu, titik 1 (Lampeuneurut Ujong Blang), titik 3 (Bayu), titik 8 (Lamkawe), titik 9 (Ajun Jeumpet), titik 11 (Lambheu), dan titik 12 (Gue Gajah), dan 2 titik dengan klasifikasi tanah keras (SC) yaitu, titik 2 (Leu Ue), dan titik 7 (Deunong).
Co-Authors Devi Sundary Eldina Fatimah Fauzi Andika Fergy Hafiz Utama Simatupang Gartika Setiya Nugraha Hendra Gunawan Ibnu Rusydy Irwandi Irwandi Muhammad Budi Nafisah Al Huda Syafrizal Syafrizal Syafrizal Syafrizal Syukri Syurbakti Yoshinori Furumoto