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All Journal Journals Mining Engineering : Bina Tambang BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) JIPF (Jurnal Ilmu Pendidikan Fisika)

Rusli HAR

Universitas Negeri Padang

Author-ID : 2720285

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Physics

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Studi Penempatan Sumur Resapan Berdasarkan Nilai Laju Infiltrasi, Kualitas Fisik Air, dan Tekstur Tanah pada DAS Air Dingin dan Batang Kandis Bagian Tengah-Hilir, Kota Padang Rizka Mutiara; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Spontaneous resettlement of people to the eastern part of Padang City which is a catchment area and the development continues so that open land shifts function to residential land, offices, etc. This causes a reduction in catchment areas which can result in flooding and decreasing environmental quality, especially groundwater. To minimize the occurrence of flooding in the Air Dingin and Batang Kandis Watershed a placement study of infiltration wells based on the infiltration rate, physical quality of water, and soil texture. This research was conducted in 41 points in the middle to downstream of the Air Dingin and Batang Kandis Watershed. Data obtained in the form of physical quality data of water, soil texture, and other supporting data. Based on infiltration rate data, the average infiltration rate in the study area of 0.11826 cm / minute is classified of low recharge areas (<0.5 cm / minute). After doing the research by looking at statistical analysis, physical quality of water, soil texture, lithological of rocks, and land use in the Air Dingin and Batang Kandis watersheds. Then the placement of infiltration wells is spread over 20 points in the Air Dingin and Batang Kandis Watershed in Padang City. Keywords: Infiltration Wells, Infiltration Rate, Physical Quality of Groundwater, Soil Texture, Rock Lithology

Analisis Debit Air Limpasan Permukaan (Run Off) Akibat Perubahan Tata Guna Lahan Pada DAS Kuranji Dan DAS Batang Arau Kota Padang Madhatillah Madhatillah; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 5, No 1 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Changes in land use from catchment areas to densely populated areas are the main factors causing high runoff discharge values. This is because vegetation that serves to absorb water into aquifers is not optimal. So that rainwater that falls to the surface of the land continues to wave into lakes, rivers, and seas without entering and seeping into aquifers. As a result, the value of the runoff until it reaches the sea becomes large. For this reason, a study needs to be carried out to determine the volume of runoff discharge due to landuse changes such as what has been done in the Kuranji and Batang Arau Watersheds of Padang City. This research was conducted in 2 watersheds in the Padang City watershed and made into several subwatersheds to get more specific results. The data obtained are secondary in the form of daily rainfall data in 8 active rainfall measuring stations in the city of Padang for the past 10 years (2009-2018), planned discharge data in 2000, map data in the form of shapefiles. Based on data processing using the Rational large discharge method for the 25 year return period in the Kuranji watershed with a watershed area of 220,687 km2 and a runoff coefficient of 0,64 amounted to 1315,70 m3/second. This discharge value has increased by 445 m3/second compared to the value of the existing discharge plan in 2000 of 870 m3/second. In Batang Arau watershed, the discharge value with an area of 177,1386 km2 and a large runoff coefficient of 0,68 is 1192,57 m3/second. This debit value increased by 492,57 m3/second from the planned discharge in 2000 of 700 m3/second.Keywords: RunOff,Landuse, Kuranji’s Watersheds, Batang Arau’s Watersheds, and Rational

Kajian Laju Infiltrasi Akhir pad DAS Batang Kandih Kota Padang Ditinjau dari Perbedaan Litologi Batuan, Tutupan Lahan,Kadar Air, Porositas Batuan, Konduktivitas Hidrolik Jenuh, Kepadatan, dan Matric Suction Ermaningsih Ermaningsih; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Infiltration flow is quantity of water that enters soil per unit time. This is an important part in hydrology cycle that gives an effect o quantity of water in land. This study is purposed to find out final-filtration speed which is reviewed from differences in rock lithology, land covering, water concentration, rock porosity, saturated hydraulic conductivity, density, and metric suction. This study was conducted in alluvial of Batang Kandih Koto Tangah district Padang city in 15 locations with grid of 1.5 km x 1.5 km. Study method was used double ring infiltrometer for filtration speed; hand-boring for rock lithology; falling head testing and constant head for saturated hydraulic conductivity; sandcone testing for land density; tensiometer for metric suction; and physical sampling testing in laboratory. Data was analyzed by spatial model and statistical analysis, so that it was resulted in filtration speed distribution model in alluvial of Batang Kandih, and also relationship between water concentration, rock porosity, saturated hydraulic conductivity, density, and metric suction toward number of filtration speed. This study showed that final-filtration speed in alluvial is 0.128 cm/minute; it means that absorption zone is in category of VI/E with very low absorption capability. With statistical modeling, it is obtained that Y = 57.585 X1 + 0.014 X2 + 0.621 X3 – 0.001 X4 + 0.000 X5 + 0.493 with Y = filtration speed, X1 = conductivity, X2 = rock porosity, X3 = density, X4 = water concentration, X5 = metric suction. While R2 is 0.83 means that 0.83 or 83 % of filtration speed score is influenced by these variables and another 17% is influenced by other variables. Water rate of flow that can enter the soil in alluvial is 76,775.58 m3/hour/km2, so that water volume that can enter soil per hour is 76,775.58 m3.Keywords: Infiltration speed, water concentration, land covering, statistical modeling, hydraulic conductivity

Kajian Teknik Dan Nilai Ekonomi Pengolahan Batu Kapur Pada Pertambangan Batu Kapur Rakyat Bukit Tui, Padang Panjang, Sumatera Barat Randa Septian Putra; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 5, No 2 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract.The people’s limestone mining in Bukit Tui has a mineable reserve of 12,826,641.60 MT. This study analyzes the limestone processing techniques in the Bukit Tui people's limestone mining and also analyzes the economic feasibility of the processing using the Discounted Cash Flow method. The efficiency of the limestone furnace at the Bukit Tui processing plant is very low, at 26.63% for each ton of lime produced with fuel consumption of 336.18 kg/ton of lime which generated. This is due to the incomplete combustion process. To increase the combustion efficiency, a furnace modification is needed, in the form of adding fans and recuperators. In the case of Bukit Tui limestone processing, the air needed is 8,928.42 kg. Therefore to complete the combustion process, a fan is needed to supply air to the furnace with a discharge of 0.07 m3/s. And if combustion takes place completely, fuel consumption will be reduced to 89.49 kg / ton of lime produced. Based on an analysis of economic value, it can be seen that the economic value of the Bukit Tui limestone processing can be declared economically feasible. However, it still needs to be adjusted to the processing technique to match the good mining practice rules (GMP).Keywords: Limestone, GMP, Processing Techniques, Furnace Efficiency, Economic Value

Kajian Laju Infiltrasi pada DAS Air Dingin Kota Padang Ditinjau dari Perbedaan Litologi Batuan, Kemiringan Lahan, Jenis Tutupan Lahan, dan Sifat Fisik Tanah Rendra Aulia Pratama; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. The new land clearing for residential area will be cause a reduction in open area as a place for infiltration of rainwater into the soil. The functional shift of the land can increase run off and give rise flooding. It is necessary to do a study about infiltration rate, mapping of infiltration zone, and calculation of water discharge that can be infiltrate by soil has be done at DAS Air Dingin Padang City. This research was carried out on 16 measurement points that spread at middle and downstream area of DAS Air Dingin. The data obtained is infiltration rate data, lithology description, slope of the land, type of land cover, and physical properties of soil data. Based on the result of data processing used kostiakov method, then the average of infiltration rate at research area is 0.10852 cm/s, this value is include of very low infiltration area (0.1-0.2 cm/s). The mapping of infiltration zone has divide research area into 6 zone that is the low zone infiltration 0.000599482-0.019298148 cm/s and the highest zone infiltration 0.224955543-0.569651067 cm/s. At the other, water discharge can be infiltrate by soil at research area is very low (65.402,5331 m3/hour/km2) with an area of infiltration is 20,844km2.Keywords: Infiltration Rate, Kostiakov Method, Lithology, Physical Properties of Soil, Infiltration Zone

Analysis Of JHA, JSA and Management K3 At KIP 16 Bangka Ocean Mining Units PT Timah (Persero) Tbk Province Bangka Belitung Islands Riri Rahmahwati Joni; Rusli HAR; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

This research discuss about safety and health occupational control inBangka Ocean KIP Timah 16 Units using some risk management methodes. Themethodes are Job Hazard Analysis (JHA), Job Safety Analysis (JSA), and HazardIdentification Risk Assesment Determining Control (HIRADC). Purpose of theresearch is to explain safety and health occupational in KIP Timah 16 Unit it isfor get the improvement of productivity work, production, welfare andcomfortability workers and achievment of zero accident.The type pf the research is descriptive. There are two data had collected.They are primary and secondery data. Primary data get from interview with theemployees and secondary data get from K3 documents in thecenter company ofPT. Timah UPLB and KIP 16.Based on result of research can get some conclutions. First, explain safetyand health occupational system. Second, the implementation formula of FR, SRand IR to count total accident that lost from day work, percentage of accident fora month. Third, to use methode JHA, JSA and HIRADC for identification andcontrol occupational accident. And last, to arrange new SOP from analysis resultJHA, JSA, HIRADC and earlier SOP.

Evaluation of Actual Condition and Planning of Drainage System in Gold Mining at Pit Durian, Site Bakan PT. J Resources Bolaang Mongodow, Lolayan Sub-district, Kotamobagu, North Sulawesi Dian Kurnia; Rusli HAR; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Based on analysis of rainfall data in 2007-2016, rainfall is obtained from the plan of 149,70 mm/day with different rain intensity in each catchment area. 5-year rain recharge period and hydrogeological risk of 67.23%. At the research location, Pit Durian PT. JRBM, in 2017 has 4 catchment areas with different area, total discharge equal to 11.913,206 m3/hour, there are 2 sumps that is South 1 Sump and North Sump with maximum capacity of 12.702 m3 and 29.596 m3 and there is one Volvo KSB LCC-H 200-610 on each sump, there are three open channels and one main setling pond with different compartment capacity. After an evaluation of the mine drainage system in 2017, South 1 Sump requires an additional 2 units of Volvo KSB LCC-H 200-610 and North Sump pumps requiring additional pumps of 1 unit of Volvo KSB LCC-H 200-610 pump.In the planning of Pit Durian mine drainage system in 2018, Pit Durian has 7 catchment areas with different area with total discharge of 14,393,101 m3/hour, there is addition of sump to 5 sump namely South 1 Sump, South 2 Sump, South 3 Sump, North 1 Sump and North 2 Sump with capacity of each sump is planned for 33,485 m3, 40,745 m3, 35,399 m3, 11,565 m3 and 20,193 m3 and requires 1 unit of Volvo KSB LCC-H 200-610 pump on each sump. The of mine drainage system in 2018 is planned to have an open channel as well as a setling pond similar to 2017.

Studi Penempatan Sumur Resapan Berdasarkan Nilai Laju Infiltrasi, Kualitas Fisik Air, dan Tekstur Tanah pada DAS Air Timbalun dan Sungai Pisang Kota Padang Fajar Inaqtiyo; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 5, No 4 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v5i4.109226

Abstract. Groundwater is a vital natural resource for humans whose availability is diminishing due to population growth. Where the infiltration area located east of the city of Padang began to changes into housing, offices, etc. This causes a reduction in catchment areas, flooding and decreasing environmental quality, especially groundwater in the Air Timbalun and Sungai Pisang Watershed. To reduce flooding in the Air Timbalun and Sungai Pisang Watershed, a study of placement of infiltration wells was conducted based on infiltration rate values, physical quality of groundwater, and soil texture.The study was conducted at 26 points in the alluvium area of the Air Timbalun and Sungai Pisang watershed. With the data obtained of groundwater physical quality data, soil texture, and other supporting data.Based on the data obtained the average value of infiltration rate in the study area of 0.058828 cm/minute is classified as a low absorption area (<0.5 cm/minute). After conducting research by observant statistical analysis of linear regression, physical quality of water, soil texture, lithology conditions, and land use in the Air Timbalun and Sungai Pisang Watershed. So the placement of absorption wells is spread over 14 points in the Air Timbalun and Sungai Pisang Watershed, Padang City. Keywords: Absorption Wells, Infiltration Rate, Physical Quality of Groundwater, Soil Texture, Lithology

Analisis Stabilitas Lereng Ruas Jalan Sicincin–Malalak Km 31 Kecamatan Malalak, Kabupaten Agam, Provinsi Sumatera Barat Evansharsal Suedi; Raimon Kopa; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Landslide natural disasters are one of the natural disasters that cause fatalities and property. Based on the frequency of events, intensity, and geological conditions, the area of Kabupaten Agam Sumatera is an area that must be aware of the potential for landslidesthis is shown in the vulnerability map of soil movement by the Dinas Energi dan Sumberdaya Kabupaten Agam Sumatra Barat. Malalak District Agam Regency is one of the zones that has a high vulnerability to soil movement. This is shown in the Agam Regency Landslide Hazard Map which needs to consider slope security because it has many factors triggering landslides, especially in its purpose as road access.This research is classified into applied research. Slope stability in this study will use slope geometry data, physical properties, mechanical properties, Rock Quality Designation (RQD) rock mass classification, Rock mass Rating (RMR) and using the Bishop Simplified method (FK or Safety Factor) supported by software. analysis of avalanche types and security factor analysis.As a result of the research carried out on the Malalak KM 31 road section, it can be concluded the following points. The rock type of the slope compiler is andesite with the value of rock mass classification with a value of RMR of 68 including in the second (II) class rocks with good rock categories. The results of kinematic analysis indicate the potential for Baji avalanches. Ground vibration that is received by the slope affects the stability value with the value of the earthquake vibration based on the Indonesian seismic map of 0.6 g. In determining the value of the actual slope safety factor using security factor analysis software obtained FK value in dry conditions of 4,000, natural conditions of 3,979, saturation conditions of 3,966 this shows the condition of the water in the rock does not significantly affect the value of slope safety factor. Whereas the value of the safety factor with the influence of vibration is obtained in a dry condition is 2,659, the natural condition is 2,642, the saturation condition is 2,638 from the result of the vibration effect on the stability of the slope has a considerable decrease in the safety value of the slope but shows that the slope condition is still stable. Keywords: Slope Stability,Road ,Ground Vibration ,RMR, Safety Factor

Kajian Laju Infiltrasi Akhir pada Daerah Aliran Sungai (DAS) Batang Arau Kota Padang Ditinjau dari Perbedaan Litologi, Tata Guna Lahan, dan Sifat Fisik Tanah Yosia Yoandika Zulvi; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

The change of forest or agricultural land function into a habitation made the diminished or rainwater infiltration into the soil (infiltration). This causes the groundwater reserves to decrease and the larger surface flow. In addition, infiltration is also influenced by several other things such as the condition of lithology, topography, and soil physical characteristic. For that reason, it is necessary to study the final infiltration rate, as it has been tested in the Batang Arau watershed of Padang. This research was conducted on 31 measurement points, from the upstream into the downstream of watershed which mostly located in alluvium area. The data obtained are the primary data in the form of direct observation in the field, they are infiltration rate estimation (double ring infiltrometer), description of lithology (handbor), matric suction (tensiometer) ¸ and the measurement of soil physical characteristic (sand cone). Based on data processing using Kostiakov model, the mean of final infiltration rate in the study area was 0,0914 cm / min, belong to the very low recharge classification (<0,1 cm/min). The high infiltration rates occur in sand lithology, and the low one occur in clay and silt lithology with agricultural land use. Based on statistical analysis, the soil physical characteristic simultaneously have a very strong correlation with the infiltration rate (0,894). The infiltration zonation mapping is divided into 6 zones, with the lowest infiltration rate zone 0,000808 – 0,058093 cm/min, and the highest infiltration rate zone 0,991835 – 1,46157 cm/min. In addition, the water debit that can be absorbed by the soil in the research area with an area of 96,187 km2 is very small, 54.000,0437 m3/jam/km2.Keywords: Infiltration Rate, Lithology, Land Use, Soil Physical Characteristic, Infiltration Zonation

Co-Authors Abdul Razak Admizal Nazki Ahmad Fauzan Alviansyah Alviansyah ANGGA YUJA WIGUNA Aprisal Aprisal, Aprisal Aulia Mutiara Chakti Denny Akbar Tanjung Dian Kurnia Dicky Maryand Dwi Hariana Pane Ermaningsih Ermaningsih Evansharsal Suedi Fadhilah Fadhilah Faiz Ramadhan Fajar Inaqtiyo Fajar Inaqtiyo Zalaff Fajar Rofiescha Hafizurahman Dwi Saputra Hanifa Octaviani Harizona Aulia Rahman Heri Prabowo Hero Willy Ikhsan Ordheo Ilham Yufahmi Isril Berd Lambok M. Hutasoit Madhatillah Madhatillah Mendoza Mendoza Mona Mona Muhammad Fadli Mulya Gusman Qiratul Aini Rahma Febriani Raimon Kopa Randa Septian Putra Randi Alvino Zulfa Rendra Aulia Pratama Resty Prasuryani Riri Rahmahwati Joni Rizka Mutiara Rizky Ananda Rudy Anarta Saldy, Tri Gamela Tamrin Kasim Welly Handa Nuraga Yosia Yoandika Zulvi

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