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All Journal Jurnal Ilmu Lingkungan PROMINE Jurnal Geosains dan Teknologi MINERAL

Narulita Santi

Departemen Teknik Geologi Fakultas Teknik Universitas Diponegoro

Author-ID : 3641421

Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology

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Analisis Pengaruh Getaran Peledakan Terhadap Kestabilan Lereng Pada Tambang Batubara Pit Roto Selatan Site Kideco, Kecamatan Batu Sopang, Kabupaten Paser, Provinsi Kalimantan Timur Mukhammad Sofyan Rizka A; Fahrudin Fahrudin; Narulita Santi
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

In PT. BUMA site, there are some landslide which affected by blasting activity. Blasting activity iscarried out to destroy overburden material. The purpose of this research is to know the type oflandslide, the coefficient value of vibration decay from Peak Particle Acceleration (PPA), rock masscondition constant value from Peak Particle Acceleration (PPA), the Peak Particle Acceleration (PPA)value and the maximum acceleration (amax) which is at a point of safe in South Roto Pit. The researchmethods which used are the window mapping method in several sections at South Roto Pit.Description of rock mass that includes type of rock, rock strength, degree of weathering, block shape,type and shape of discontinuity, discontinuity filler and roughness level of discontinuity. ThisDescription of rock mass use Geological Strength Index (GSI) classification as a parameter to knowthe mechanical properties of rock mass (cohesion and internal shear angle). The research area has atype of toppling failure with eastward avalanche. The value of coefficient of vibration decay from PPA(k) is 44,66. The rock mass condition constant (α) is 1,802. The safe value of PPA highwall slopesarea of B STA 1 value is 0,184 g and the maximum acceleration (amax) value is 0,12 g. Highwall slopesarea B STA 2 with PPA value is 0,0769 g and maximum acceleration (amax) value is 0,05 g. Highwallslopes area C5 STA 3 with PPA value is 0,153 g and the maximum acceleration (amax) value is 0,1 g.Highwall slopes area C5 STA 4 with PPA value is 0,0307 g and the maximum acceleration (amax) valueis 0,02 g. Overall slopes area with PPA value is 0,0307 g and maximum acceleration (amax) value is0,02 g.

Kajian Penyebaran Akuifer Menggunakan Geolistrik Dengan Metode Schlumberger Kompleks RRI Cisalak, Sukmajaya, Kota Depok, Jawa Barat Izza H. Hanani; Wahju Krisna Hidajat; Narulita Santi
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The research was conducted in Cisalak area, Sukmajaya district, Depok city, West Java. The researchwas committed in order to search for water source as a purpose to support the planning in built privateuniversity in West Java. The research aims to know the spreading of the aquifer. The used method isby observing the regional geology of the area and supported by geoelectric measuring and water tabledata.. This research used Schlumberger method which spreaded in 10 measuring points. From thismethod, the assessed litologi were clay, tuff sandy, and conglomerat. The underground correlationwas committed in four sections. The aquifer generally tend to spread from the central from west toeast of the area and from north to south.

Zonasi Potensi Airtanah Akuifer Bebas Di Cekungan Airtanah Majenang, Kabupaten Cilacap, Jawa Tengah Mahira Anaqah Huwaina; Thomas Triadi putranto; Narulita Santi
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Majenang Groundwater Basin is located in Cilacap Regency, Central Java. There is an increase of itsusage every year. Because of that, it is necessary to make groundwater zonation to get an overview ofthe potential zonation, specifically in unconfined aquifer. The methods used in this study is measuringwater table, sampling 17 samples of groundwater and pumping test to get the quantity of groundwater.Based on the measurement of known water table, it flows from the side of basin to the center of basin.It has a value of water level between 0.1-4.5 mbgl and water table 33.3-119.9 masl. Pumping test dataprocessing generates characteristic data aquifers, with value of transmisivity (T) is 2.9-11.3 m2/day,hidrolic conductivity (K) is 0.7-4.9 m/day, maximum debit is 2.3-3.6 L/day and optimum debit is 2.0-2.9L/day. Based on the result of quantity data, it has a medium potential zone for the unconfined aquifer.

Co-Authors Athik Dina Nashihah Devina Trisnawati Dinar Astari Fahrudin Fahrudin Izza H. Hanani Mahira Anaqah Huwaina Mukhammad Sofyan Rizka A Najib Najib Nur Adillah Nurakhmi Qadaryati Reza Afrizona Fauzih Thomas Triadi Putranto Thomas Triadi Putranto, Thomas Triadi Umi Cahyani Rahayuningtyas Wahju K Hidajat Wahju Krisna Hidajat Wilfridus FS Banggur Zainun Zainun

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