DYNAMIC RESPONSE ANALYSIS BASED ON FOUNDATION DIMENSIONS AND MACHINE CAPACITY ON BLOCK-TYPE MACHINE FOUNDATION

S N Fitri^[1],2*, N S Surjandari¹, Y M Purwana¹, B Setiawan¹, G Chrismaningwang¹, and H Dananjaya¹

¹UNS Geoscience Research Group, Civil Engineering Department, Universitas Sebelas Maret, Jebres, Surakarta 57126, Indonesia.

²Disaster Research centre, Universitas Sebelas Maret, Jebres, Surakarta 57126, Indonesia.

[1]^,2* Corresponding author: [email protected]

DOI: https://doi.org/10.20885/icsbe.vol4.art8

ABSTRACT

The development of Indonesia’s economic sectors and populations leads to huge regional problems, which provide the large community’s electricity needs in several areas. The common solution to this issue is to offer the potential natural resources that are safe for the environment and can be used as a source of electricity, such as a small-scale hydroelectric power plant or a Micro-Hydro Power Plant. This structure requires the dynamic foundations to accept dynamic loads caused by machine movements such as rotation, vertical movement, horizontal movement, and torque. The main objective of this work is to analyse the effect dimension of machine foundation and machine capacity in several conditions. This research was conducted on numerous machine capacity, namely machine 1, 2, and 3, which offers different frequency and weight. The foundation length was designed to range between 4 and 6m, which design a similar embedded foundation at 1m and width of 0.5m. The soil properties were conducted in secondary data with CPT results. The outcome provides that the addition of foundation area reduces the amplitude. The results show a similar trend in three categories; vertical, horizontal, and rocking aspects which generate values of approximately 57%, around 40%, and about 50%, respectively, in all machine types. The higher area and length of the foundation, the smaller amplitude will be.

Keywords: Machine; Block-type; Dynamic; Amplitude; Foundation

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