Jurnal Rekayasa Sipil dan Desain
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Analysis of Traffic Accident Factors on The Road of Tarahan Lampung Selatan
No full text The purposes of this study were to analyze the factors causing of the traffic accident using correlation analysis with SPSS program and analyze the relationship between the characteristics of accidents and road safety facilities such as road signs, road markings, and lighting lights the road of Tarahan. The secondary data were obtained from the Ditlantas Polda Lampung in the form of accident data per month from 2014-2018. Then from National Road Planning and Supervision were obtained form of geometric data for the Tarahan Road in 2019. The results showed that there were still inadeguate road safety facilities on the Tarahan road, such as lighting, road markings and rescue path. In terms of the geometric conditions of the Tarahan Road it has a maximum slope exceeding the Bina Marga standard of 10,83%, it affects traffic accidents. The characteristics of accidents based on the factors that cause the accidents were vechicle factors (46,7%) with the result of correlation analysis of ,943* significance ,016. The types of accidents were are single accidents (35,5%) with the result of correlation analysis of ,934* significance ,020. Keywords: Accident Characteristics, Correlation, Road Safety Facilitie
Analysis Factor Safety of Slopes With Sandy Loam Soil Types on Conditions Not Saturated, Saturated Conditions and Partially Saturated Conditions Using Computing Program
No full textNatural disasters often occur in hilly areas in Lampung Province, namely landslides. Landslides that occur due to increased pore water pressure. The 2012 GeoStudio SLOPE / W program can analyze slope stability that can be modeled according to the original conditions in the field and can know the value of the safe slope factor. In this study, there were three cross section slopes with three groundwater conditions, namely the condition of the groundwater level at the base of the slope, half the height of the slope and following the maximum height of the cross section of the slope. Land property data needed include : cohesion, shear angle in soil and weight of soil contents. Slope stability is achieved when the retention force is greater than the driving force. The results of the analysis of slope stability show that the condition of the groundwater is very influential on slope stability, can be seen from the results of GeoStudio SLOPE / W 2012 analysis in simulation 1 and simulation 2 safe factor values obtained >1.25 that is slopes are in safe status, while in simulation 3 the saturated condition has a safe factor <1,25 that is unsafe slopes or landslides, it is recommended to take care to prevent landslides. Key words : soil, slope stability, safety factor, geostudio slope/w 201
Aplikasi hasil Eksperimen Pemadatan Tanah Untuk Konstruksi Embung Berdasarkan Metode Tekanan
Get PDFPeningkatan akan kebutuhan air untuk irigasi maupun kebutuhan air baku, membuat Pemerintah Provinsi Lampung perlu meningkatakan insfrastruktur pada bidang pengairan atau irigasi, maka perlu dilakukan pembuatan Bendungan. Di Universitas Lampung sendiri telah di bangun Embung digunakan untuk mengatur atau menampung aliran air hujan, meningkatkan kualitas air serta dapat menjaga kualitas air tanah dan mencegah banjir. Pada dasarnya untuk membangun sebuah konstruksi sangat berkaitan erat dengan sifat fisik dan mekanis pada tanah. Hal tersebut dikarenakan tanah adalah material yang berperan sangat penting sebagai pendukung suatu konstruksi. Pada penelitian ini menggunakan dua pemadatan, yaitu pemadatan dengan menggunakan tumbukan dan pemadatan dengan menggunakan tekanan yang menggunakan standard proctor. Penelitian ini bertujuan untuk mengetahui perbandingan dengan menggunakan tumbukan dan menggunakan metode tekanan. Pemadatan dilakukan berdasarkan metode tumbukan dan tekanan. Metode tekan digunakan alat tekan modifikasi dengan tekanan 5 MPa, 10 MPa, dan 15 MPa. Dari hasil penelitian dilaboratorium dengan metode tumbukan didapatkan berat volume kering sebesar 1,7 gr/cm³. bila dikonversi terhadap uji tekan modifikasi didapatkan nilai sebesar 7 MPa. Kata Kunci : Pemadatan Metode Standard, Pemadatan Metode Tumbukan, Ydalik
Analisis Percepatan Durasi Proyek Dengan Menggunakan Metode Crashing
Get PDFThere are possible problems arise during construction of project that can cause delays. Delays can cause losses in the form of fines, overhead costs, additional salaries and rental tools and other. To overcome the problems, there are some ways to achieve project completion in due time. The purpose of this study was to analyze the acceleration of the project duration by utilizing crashing method and its impact on project cost. The object of the case study was the construction of Lampung Regional Police Headquarter. The scenario utilized was increased the number of workers by 35% and the added working hours by four hours. The results show by increasing the number of workers across eleven project activities, the project duration was crashed to 252 days or two days earlier than the scheduled time and the project cost was decrease to Rp. 23,964,647,646.00 or 0.908% lower than the scheduled cost. The results also show by adding four more working hours across ten project activities, the project duration was crashed to 253 days or one day earlier than the scheduled time and the project cost was decreased to Rp. 23,995,417,215.00 or 0.781% lower than the scheduled budget. Keywords: Project Acceleration, Crashing method, increase of the number of workers, the addition of working hour
Perencanaan Sistem Jaringan Air Limbah di Fakultas Teknik Universitas Lampung
Get PDFFakultas Teknik adalah salah satu fakultas terbaik di Universitas Lampung, dan menjadi pusat penelitian di bidang teknologi. dengan bertambahnya civitas maka akan bertambah juga volume air limbah cair domestik yang di hasilkan, sehingga berpotensi terjadinya pencemaran lingkungan.Pembuangan air limbah tanpa melalui proses pengolahan terlebih dahulu akan menjadi sebab terjadinya pencemaran lingkungan. Oleh karena itu perencanaan sistem jaringan air limbah di Fakultas Teknik Universitas Lampung perlu mendapat perhatian yang penting guna menghidari penurunan kualitas air baku akibat pencemaran lingkungan. Penelitian ini bertujuan untuk mengetahui jumlah debit air limbah cair domestik yang dihasilkan di Fakultas Teknik Universitas Lampung dan mendesain sistem jaringan air limbah cair domestik sesuai dengan ketentuan.Berdasarkan penelitian yang telah dilakukan, diperoleh kapasitas air limbah domestik di Fakultas Teknik Universitas Lampung sebesar 12600 liter/hari atau 0,1447 liter/detik, dan debit puncak 0,2170 liter/detik, ukuran desain bak pengolahan air limbah adalah panjang 6 meter, lebar 1 meter. sistem pengolahan air limbah menggunakan sistem terpusat dengan metode aerob-anaerob. Saluran pembawa air limbah di desain dengan pipa diameter 6 inci / 150 milimeter menggunakan bahan PolyvinilChloride(PVC) Kata kunci:Air Limbah domestik, Aerob-anaerob, Bak pengolahan
Analisa Kelongsorang Lereng Akibat Dari Peningkatan Kadar Air YangTinggi
Get PDFThe level of slope safety is influenced by several factors. Such as slope conditions with largeloads, steep slopes and heavy rain conditions. This often results in landslides around the TransSumatra toll road, Pematang Panggang. So that around the slopes reinforcement is needed so thatthe slopes are more stable.Based on the results of laboratory tests and research in the field, the results of the calculation ofthe slope safety value program with a 30% saturation degree condition, the safe factor value is1.2946, the degree of saturation 40%, the safe factor value is 1.2881 and the degree of saturationis 60%, the safety factor value is equal to 1,2761. Because the lowest safe factor value is at 60%saturation degree, slope stability is handled at 60% saturation degree, which is strengthened bythe cutting method on the slope body and using sheet pile to get slope reinforcement. Two methodsof handling slope stability were carried out. From the comparison of slope stability handling with60% degree of saturation, the safe slope conditions are in handling one because there is nosubsidence and soil displacement to the free slope area
Perbaikan tanah dasar jalan dengan substitusi material pasir terhadap kemampuan daya dukung tanah dengan uji tekan pemadatan modifikasi (modified proctor)
Get PDFTanah lempung dengan plastisitas tinggi, kohesifitas yang besar berakibat fluktuasi kembang susut yang relatif besar. Hal ini yang menyebabkan kondisi jalan yang dibangun diatas tanah lempung mengalami kerusakan. Oleh karena itu dalam penelitian ini dilakukan perbaikan tanah dengan cara memperbaiki gradasinya yaitu mencampur tanah asli dengan pasir. Sampel tanah yang digunakan pada penelitian ini berasal dari Ruas Jalan R.A.Basyid, Kecamatan Jati Agung, Lampung Selatan pada STA 3+100 dengan variasi pasir 0%, 5%, 10% dan 15 % dari berat tanah. Pengujian pada penelitian ini adalah pengujian CBR dari efek pegembangan tanah, lalu dilakukan perhitungan tebal perkerasan dengan metode analisa komponen SKBI 2.3.26.1987 dan metode manual desain perkerasan jalan 2017. Pada penelitian inisampel tanah yang digunakan termasuk kelompok A-7-6(tanah yang buruk). Setelah penambahan variasi pasir, batas plastis tanah tersebut meningkat sedangkan batas cair dan indeks plastisitas menurun, hal ini mengakibatkan pengembangan tanah terjadi penurunan pada 15% pasir yaitu dari 0,62% menjadi 0,17%, sedangkan nilai CBR mengalami peningkatan yang signifikan pada pasir 15% yaitu dari 2,6% menjadi 26,0%. Dengan hal ini pada perhitungan dengan metode analisis komponen SKBI 2.3.26.1987 tebal lapis menjadi lebih tipis, pada 0% pasir yaitu tebal D1=7,5 cm, D2=25 cm dan D3=44 cm, sedangkan pada 15% pasir tebal D1=5 cm, D2=17 cm dan D3 tidak digunakan. Perhitungan dengan menggunakan metode manual desain perkerasan jalan 2017 pada variasi pasir 5%, 10%, dan 15% tidak perlu perbaikan jalan karena nilai CBR ≥6
Flyover Development Effectiveness In The Road Of Teuku Umar - Za Pagar Alam Bandar Lampung
No full textCongestion problems are common in transportation, congestion can be caused by several things. The construction of the flyover is expected to be able to overcome congestion in the long term. This research was conducted to determine the effectiveness of the flyover construction on the Teuku Umar - ZA Pagar Alam road. This research was conducted during busy hours on Monday at the Teuku Umar road, ZA Pagar Alam and the nearest intersection.. From the results of calculations and analysis, it can be seen that the construction of an elevated bridge has no significant impact on the decomposition of the congestion problem in the Kedaton area and its surroundings, this can be seen from the level of service on all roads in the study area with a value of V / C Ratio <0.75. Meanwhile, the average degree of saturation obtained from the analysis of intersections with signal and no signal> 0.75. Construction of a flyover which illustrates that it will unravel traffic jams, in fact the performance of the flyover and the main road underneath has not increased. This needs to be addressed immediately considering the current traffic flow in Kedaton and its surroundings is already saturated. Therefore, the growth of vehicles is on time, and public transportation facilities need to be improved. So that people begin to switch to public transportation in order to reduce the incidence of congestion on these roads. Keywords : Road Performance, Degree of Saturation, Level of Road Servic
Evaluasi Kinerja Struktur Gedung Bertingkat dengan Metode Analisis Time History (Studi Kasus: Apartemen Kingland Avenue Serpong)
Get PDFThe high level of seismic activities in Indonesia causes the planning of building structures to be taken into account against the acceleration of the earthquake on the ground. Earthquake acceleration on the ground is an earthquake parameter that has a direct impact on the structure. Time history dynamic analysis can represent the dynamic properties of earthquake acceleration and structural response. So that this analysis method can provide a more complete description and information on structural responses. Earthquake recording data uses actual 3 earthquake accelerograms which are scaled with the planned earthquake response spectrum. From the results of this study, it is found that according to ATC-40 the building structure is included in the damage control category. Meanwhile, according to SNI 1726 (2019), the Chi-Chi and El Centro earthquakes met the requirements for deviation bricks between permit floors, but in the Kobe earthquake, the building structure did not meet the deviation requirements between permit floors on the 3rd floor
Analisis Kinerja Redaman Gelombang pada Breakwater Tenggelam Tipe Berlubang Dengan Pemodelan Fisik 2D
Get PDFLoss of land due to coastal erosion that occurs naturally by wave abrasion. Therefore, to protect the coast from erosion or other matters, a breakwater is needed which destroys the energy of the waves before reaching the shore. This is the background of the author in taking the title of the thesis about the Performance Analysis of Wave Attenuation in the Hollow Type Breakwater Submerged Type 2-D Physical Modeling. The variables used in this study were incident wave height (Ho), calm water level (ds), and breakwater type. The results of this study indicate that the damping coefficient (Cr) was obtained using a sinking breakwater without a hole with a calm water level (ds) of 2 cm of 0.479 which is the most effective damping produced in an experiment using a breakwater that is free from calm water surface (ds). 2 cm. The wave attenuation obtained from the wave defraction test using 2 types of breakwaters resulted that the breakwater without the damping hole was greater than using a perforated breakwater