ANALISIS PENGARUH HGI (HARDGROVE GRINDABILITY INDEX) BATUBARA TERHADAP WAKTU GALI BACKHOE CAT 6015 DI PIT INUL EAST PT KALTIM PRIMA COAL

REGAR, SARAH BR and Pebrianto, Rosihan and Oktarinasari, Eva (2024) ANALISIS PENGARUH HGI (HARDGROVE GRINDABILITY INDEX) BATUBARA TERHADAP WAKTU GALI BACKHOE CAT 6015 DI PIT INUL EAST PT KALTIM PRIMA COAL. Undergraduate thesis, Sriwijaya University.

	Text RAMA_31201_03021182025016.pdf - Accepted Version Restricted to Repository staff only Download (2MB) | Request a copy
	Text RAMA_31201_03021182025016_TURNITIN.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (13MB) | Request a copy
	Text RAMA_31201_03021182025016_0010029003_0015109006_01_front_ref.pdf - Accepted Version Available under License Creative Commons Public Domain Dedication. Download (807kB)
	Text RAMA_31201_03021182025016_0010029003_0015109006_02.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (575kB) | Request a copy
	Text RAMA_31201_03021182025016_0010029003_0015109006_03.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (272kB) | Request a copy
	Text RAMA_31201_03021182025016_0010029003_0015109006_04.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (369kB) | Request a copy
	Text RAMA_31201_03021182025016_0010029003_0015109006_05.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (115kB) | Request a copy
	Text RAMA_31201_03021182025016_0010029003_0015109006_06_ref.pdf - Bibliography Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (136kB) | Request a copy
	Text RAMA_31201_03021182025016_0010029003_0015109006_07_lamp.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (979kB) | Request a copy

Abstract

Coal has different HGI (Hardgrove Grindability Index) values, in the Inul East pit of PT Kaltim Prima Coal which has 15 coal seams, some of which are seams K1, K4, K6, K12, K14 and K17LR which are divided into 3 products namely: Melawan, Pelikan 4800, and Pelikan 4300. This research aims to see the effect of coal HGI value on Cat 6015 backhoe digging time. The data processing used in this research is to analyze the correlation coefficient and determination of the HGI value of coal to the digging time and productivity of Cat 6015 backhoe. From the results of the correlation coefficient analysis of the HGI value of coal to digger digging time, a correlation value of -0.88 is obtained, which means that the HGI value of coal and backhoe has a strong correlation and the direction of the correlation is inversely proportional. The result of the coefficient of determination of coal HGI on digging time is 0.77, which means that the accuracy of predicting the value of digging time from the HGI value of coal reaches an accuracy of up to 77%. The results of the correlation coefficient analysis and the value of coal HGI to the productivity of Cat 6015 backhoe obtained a correlation value of 0.86 which means that the value of coal HGI and productivity has a strong correlation and the direction of the correlation is directly proportional and the result of the determination value is 0.75 which means that the accuracy in predicting the value of productivity from the existing coal HGI value reaches up to 75% accuracy. So that the results of the correlation and determination coefficient analysis indicate that the HGI value of coal does have a considerable influence on digging time and productivity.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	HGI, Waktu Gali, Produktivitas
Subjects:	T Technology > TN Mining engineering. Metallurgy > TN799.5-948 Nonmetallic minerals > TN817.S6 Bituminous coal.
Divisions:	03-Faculty of Engineering > 31201-Mining Engineering (S1)
Depositing User:	Sarah Br Regar
Date Deposited:	01 Aug 2024 04:34
Last Modified:	01 Aug 2024 04:34
URI:	http://repository.unsri.ac.id/id/eprint/153572

Actions (login required)

View Item