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All Journal Faktor Exacta STRING (Satuan Tulisan Riset dan Inovasi Teknologi)
Hari Hadi S
Universitas Nasional
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mathematics

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Sistem Pemantauan Getaran Pada Jalur Soft Track Secara Online Erna Kusuma Wati; Hari Hadi S; Ayu Maharani; Fraska Anagga
STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Vol 5, No 2 (2020)
Publisher : Universitas Indraprasta PGRI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (641.986 KB) | DOI: 10.30998/string.v5i2.7828

Abstract

Along with the development of toll road infrastructure, we need to anticipate and monitor the effects it causes, especially for residents living around toll roads. The impact of vibrations caused by passing vehicles can disturb the health of the population if it crosses the Maximum Threshold. Based on this, during this research, we will design a vibration measuring device that can be monitored online by the vibration (acceleration). The vibration meter has been designed using the MMA7361 accelerometer sensor. Data transmission is carried out online using the ESP8266 WiFi module and using a portable WiFi hotspot source from a cellular phone. The measurement was carried out for about 30 minutes at the edge of the Jakarta-Serpong toll road, precisely at Km-11. By using four vibration measurement sensors, the sensor distance variations are carried out on toll roads, the distance between each sensor is as far as 3 meters. The results of measurement and testing of vehicle vibrations passing on the Sepong-Jakarta toll road on the four sensors show an acceleration value of <0.45m / s². The measurement results of the vibration of vehicles passing on the Jakarta-Serpong Km 11 toll roadshow that the resulting acceleration value is <0.45m / s². Based on the level of risk of exposure to vibration for health, the acceleration value is in a low category so that the toll lane distance is in a safe zone for the health of the surrounding population.
ANALISIS GROUND VIBRATION DENGAN METODE PEAK PARTICLE VELOCITY (PPV) Hari Hadi S; Erna Kusuma Wati; Tomas Kristiono
Faktor Exacta Vol 14, No 1 (2021)
Publisher : LPPM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/faktorexacta.v14i1.7833

Abstract

Measurement of Peak Particle Velocity (PPV) mm / sec in the Sabo dam construction project was carried out using seismic accelerometers. This study is to determine the value of PPV produced by construction equipment and then compared with the BS 6472-2: 2008 standard. The measurement method is carried out based on the applicable rules. PPV measurement results produced by each machine are different. In heavy equipment dump trucks, excavators, and front end loaders show PPV values at distances of 50 m, 100 m, 150 m and 200 m under safe conditions referring to the standard which is still in the range of 0.2 - 0.4 mm / sec. while for the pile driving device, demolition, vibrator pile driver at a distance of 50 meters are in unsafe conditions, because more than the range of 0.2 - 0.4 mm / sec, but at a distance of 100, 150, and 200 m PPV values are at safe conditionKey words: PPV, Ground Vibration, Dam sabo 
Co-Authors Ayu Maharani Erna Kusuma Wati Erna Kusuma Wati Fraska Anagga Tomas Kristiono