Browsing by Author "Akbar, Sandy Radhitya"

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    ANALYSIS OF BASIC SOIL SUPPORT BASED ON FIELD CBR AND CBR LABORATORY FOR ROAD REHABILITATION LINGKAR KARAWANG, WEST JAVA
    (Solid State Technology Volume: 63 Issue: 3, 2020) Setiawan, Asep; Akbar, Sandy Radhitya; Agustian, Yanyan
    Bearing capacity and density level are factors that affect the stability of the subgrade, therefore it is necessary to test the bearing capacity and soil density to be used as subgrade whether it meets the required conditions. This needs to be done to avoid the instability of the pavement layer which can disturb comfort and even endanger road users and the surrounding community. pavement. The method used was to determine the bearing capacity of the subgrade based on the CBR of the field with the DCP tool and to know the carrying capacity of the subgrade stability based on the CBR of the submerged laboratory. From the research results, it was found that the soil in the optimum moisture content condition, the more compacted it will increase the CBR (carrying capacity). In the CBR test in the field using the DCP tool, it was found that the CBR segment was 8.16%. While the subgrade bearing capacity obtained based on the correlation graph between the subgrade bearing capacity and CBR is 5.7 cm2. So the type of soil in this test MH (clay silt / high plasticity silt) is classified in the classification of good soil / very good soil.
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    A CASE STUDY OF CANTILEVER CONCRETE WALL FOR SLOPE REINFORCEMENT AT BATUJAJAR, WEST BANDUNG
    (Solid State Technology Volume: 63 Issue: 3, 2020) Akbar, Sandy Radhitya
    Areas with high rainfall often encounter problems in the form of landslides and the like. In order not to cause damage to the slope, various methods were used. Strengthen to the soil by adding an additional structure in the form of a retaining wall is one of the most common examples. Jalan Batujajar in Bandung is an area west of Bandung, in an area with steep cliffs and frequent landslides. This study was conducted to evaluate the use of cantilevered concrete retaining walls for slope reinforcement in overcoming landslides on Jalan Batujajar, West Bandung. Soil properties parameters obtained from laboratory experiments from samples taken in the field are used as parameters in determining the design of the retaining wall. When viewed from three factors, namely: resistance to rolling, shear and bearing capacity of the soil where the retaining wall will be built, the calculation results show that based on the properties of the soil, the selected retaining wall, the type of cantilevered concrete wall, are the desired safety factors.
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    EFFECT OF WORK SAFETY AND HEALTH KNOWLEDGE ON CONSTRUCTION WORKERS IN CAWANG-TOMANG CENGKARENG TOLL ROAD PROJECTS
    (Horizon Research Publishing, 2019) Setiawan, Asep; Akbar, Sandy Radhitya; Istambul, Muhammad Rozahi; Agustian, Yanyan; Saudi, Mohd Haizam Bin Mohd
    Safety at the location of road works is an important part that is often overlooked in the construction and maintenance of roads. Management of the safety of the road work location is the responsibility of the road manager. In general, knowledge about Occupational Health and Safety (OSH) is very broad, but there are several OHS components that are considered important to be used as a benchmark for understanding OSH. These components are K3 Definition and Initiation, K3 Management System (SMK3), Personal Protective Equipment (PPE), K3 Facilities and Infrastructure, OHS Risk. Research on the influence of occupational safety and health knowledge on occupational health on construction worker behavior was carried out to determine the effect of K3 knowledge variables together on the behavior of construction workers. And to know the effect of K3 knowledge variables partially on the behavior of construction workers. From the results of the study it can be concluded that there is a relationship or a low level of correlation between K3 Knowledge and Workers' Behavior while the value of the Determination Coefficient (adjusted r square) is 0.033 which means only 3.3% of K3 Knowledge aspects that affect Construction Worker Behavior and the remaining 96.7% is influenced by other variables. Based on the results of the T-test calculation using the method of calculation of Multiple Linear Regression the value of t count
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    THE USE OF CERC FORMULA AS LATERAL FORCE OF PILE IN SEA WATER INTAKE’S PILE ANALYSIS
    (Solid State Technology Volume: 63 Issue: 3, 2020) Widyanto, Bambang Eko; Akbar, Sandy Radhitya; Hasan, Fuad
    Offshore structure is different with on shore structure, in onshore structure the lateral pressure help piles to be more powerful, it different with offshore structure, the lateral pressure decrease safety factor of pile. One of structure which need an offshore design structure is pump house in offshore of island. It need special calculation because it placed in offshore. To calculate the wave pressure, the formula that used is from CERC in Shore Protection Manual. In pile calculation, we use Meyerhof Calculation.