EVALUASI KAPASITAS SALURAN DRAINASE DESA SARIHARJO NGAGLIK SLEMAN YOGYAKARTA

2017 ◽  
Vol 14 (1) ◽  
pp. 47
Author(s):  
Bambang Sulistiono ◽  
Aditya Ferry Ardiyanto
Keyword(s):  
Rational Method ◽  
Flood Mitigation ◽  
Hydraulic Calculation ◽  
Channel Height ◽  
Drainage Network ◽  
Drainage Channel ◽  
Rainfall Runoff ◽  
Flood Discharge ◽  
Areal Rainfall ◽  
Discharge Method

Along Palagan Tentara Pelajar Street, rainfall runoff floods Sariharjo area regularly.The inundation is triggered by drainage channel that cannot convey rainfall runoff therefore itfloods street and settlement. Flood mitigation is conducted by evaluating existing channelcapacity. Several analyses were carried out such as evaluation of existing drainage network,calculation of flood discharge, and channel hydraulic calculation. Flood discharge is analyzed byusing rational method, and channel conveyance discharge is calculated by using Manningequation. Forty masonry channels were evaluated to determine their discharge conveyance. Theywere evaluated by using areal rainfall discharge method, and street drainage method at 5 yearsreturn flood discharge. All of channels cannot convey areal rainfall discharge. Moreover therewere 5 channels that cannot convey flood discharge calculated by using street drainagemethod. Dimension improvement is needed to overcome inundation. Channel width must beincreased from 0.30 m to 0.60 m, and channel height must be improved 0.60 m to 0.90 m.Abstrak: Banjir dan genangan pada badan jalan masih terjadi di kawasan desa Sariharjo, lokasi terparah pada jalan Palagan Tentara Pelajar. Genangan disebabkan oleh saluran drainase yangtidak mampu lagi menampung air hujan, sehingga melimpas ke badan jalan dan pemukimanpenduduk, menyebabkan kerugian berupa terganggunya arus lalulintas (kemacetan). Oleh karenaitu, perlu dilakukan penelitian untuk mengevaluasi kapasitas saluran yang ada. Data sekunderdiperlukan meliputi peta Rupa Bumi Indonesia (RBI), data hujan harian, sedangkan data primeradalah pengukuran langsung dari semua saluran drainase pada wilayah penelitian, kondisi saluran,dan lokasi saluran yang sering meluap. Analisis yang dilakukan meliputi pola jaringan drainaseeksisting, banjir rancangan, dan hidraulika saluran. Banjir rancangan dihitung dengan cararasional, sedangkan debit dihitung dengan persamaan kontinuitas, dengan menggunakanpersamaan kecepatan Manning’s. Berdasarkan RBI dan pengamatan lapangan pola jaringanmerupakan pola jaringan campuran, dengan jumlah penggal saluran 40 buah (S1 sampai S40),dengan kondisi saluran yang masih relatife baik dengan jenis dinding pasangan batu kali diplester,berbentuk segiempat. Berdasar analisis banjir wilayah hampir semua saluran tidak mampumenampung banjir 5-tahunan, sedangkan pada analisis drainase jalan terdapat 5 saluran yang tidakmampu menampung banjir 5-tahunan. Kelima saluran tersebut adalah S10, S16, S24, S31, danS36. Untuk dapat menampung debit banjir, maka kelima saluran tersebut di disain ulang sehinggadiperoleh dimensi baru untuk saluran S10, S16 dan S24 dengan lebar 0,30 m dan tinggi 0,60 m,saluran S31dengan lebar 0,45 dan tinggi 0,9 m, dan S36 dengan lebar 0,3 dan tinggi 0,6.Kata kunci: banjir, genangan, drainase, kapasitas saluran

Evaluasi Sistem darinase Bandar Udara Internasional Kualanamu – Medan

WARTA ARDHIA ◽  
2012 ◽  
Vol 38 (1) ◽  
pp. 1-16
Author(s):  
Ali Murtadho
Keyword(s):  
Drainage System ◽  
Safety Evaluation ◽  
Rational Method ◽  
Rain Water ◽  
Water Runoff ◽  
Drainage Channel ◽  
The South ◽  
Flood Discharge ◽  
Extensive Evaluation ◽  
Calculation Results

Adequate drainage system for disposal of water on the surface and subsurface is important for the safety of aircraft and pavement age. In the context of penerbanga safety, evaluation of the effectiveness of the implementation of the drainage system in Kualanamu-Medan airport, is important. Extensive evaluation was conducted by comparing the dimensions of the channel with the channel dimensions calculated using n formula field with a rational method of flood discharge. Calculation results show that the dimensions of the main drainage channel Kualanamu airport lines 1, 2, 3, 4 5 and the South line has been quallfied as having a greater dimension of the calculation. The results confirms that the drainage system Kualanamu-Medan airport able to accommodate the rain water runoff as well. Sistem drainase yang memadai untuk pembuangan air pada permukaan dan dibawah permukaan adalah penting bagi keselamatan pesawat dan umur perkerasan. Dalam konteks keselamatan penerbangan, evaluasi efektifitas penerapan system drainase di Bandar udara Kualanamu- Medan, adalah penting. Evaluasi dilakukan dengan membandingkan luas dimensi saluran hasil perhitungan dengan dimensi saluran dilapangan menggunakan rumus debit banjir metode rasional serta menurut kaidah-kaidah teknis dalam perencanaan saluran. Hasil perhitungan menunjukkan bahwa dimensi saluran drainase utama bandara Kualanamu jalur 1, 2, 3, 4, 5 dan jalur Selatan telah memenuhi syarat karena mempunyai dimensi yang lebih besar dari hasil perhitungan. Hal tersebut menegaskan bahwa system drainase Bandar udara Kualanamu-Medan mampu untuk menampung limpasan air hujan dengan baik. 

scholarly journals SIDOARJO MUD DRAINAGE SYSTEM

CI-TECH ◽  
2020 ◽  
Vol 1 (01) ◽  
pp. 31-37
Author(s):  
Achmad Baydhowi ◽  
Soebagio
Keyword(s):  
Drainage System ◽  
Soil Condition ◽  
Drainage Channel ◽  
The South ◽  
The West ◽  
South Side ◽  
Flood Discharge ◽  
Discharge Plan ◽  
Embankment Height

Sidoarjo or Lusi mud has an area of ​​640 ha and an average embankment height of 10 meters and submerges three sub-districts, namely Porong District, Jabon District and Tanggulangin District. In 2018, the Sidoarjo mud embankment has decreased or subsided by up to 8.5 meters at several points, which was caused by the condition of the embankment which was almost full and caused the soil condition of the embankment to become unstable. For this problem, it is necessary to build a drainage channel at the edge of the embankment to overcome the overflow of the embankment and flow it to the Porong river which is on the south side of the Sidoarjo mud embankment. From the calculation of the planned rain discharge, it is found that R2 = 72.95 mm after the planned rainfall is obtained, then the next is to look for the flood discharge plan which then plans the dimensions of the channel on the west and east sides of the embankment after obtaining the dimensions of the channel, then the next is planning the resistance pond and draining it to the porong river. with Siphon Network Pipe

scholarly journals Analysis of urban flood using synthetic unit hydrograph (SUH) and flood mitigation strategies along way Halim River: a case study on Seroja street, Tanjung Senang District

2021 ◽  
Vol 331 ◽  
pp. 07015
Author(s):  
Dian Pratiwi ◽  
Arniza Fitri ◽  
Arlina Phelia ◽  
Nabila Annisa Amara Adma ◽  
Kastamto
Keyword(s):  
Mitigation Strategies ◽  
Flood Mitigation ◽  
Trigger Factor ◽  
Urban Flooding ◽  
Unit Hydrograph ◽  
Urban Flood ◽  
Flood Discharge ◽  
Absorption Area ◽  
Synthetic Unit Hydrograph

In the urban area, flooding becomes the most common disaster that has not been resolved until today. The utilization of river border area into housing and lack of absorption area becomes the trigger factor of urban flooding, as what is happening around Way Halim River on Seroja street. In this area, floods often happen during the rainy season, with the latest events recorded on January 21st, 2021. Analysis of flood intensities and discharges can be parameters for the decision-making of flood mitigation strategies. This study aims to analyze the flood discharges along Way Halim River, Seroja street by comparing the flood discharges resulting from three analysis methods of Synthetic Unit Hydrograph (SUH) including Gama I SUH, Nakayasu SUH, and Snyder SUH. Finally, suitable flood mitigation strategies were also proposed in this study based on the flood discharges and rain intensities. The results showed that Nakayasu SUH had the highest peak flood discharge than Snyder SUH and Gama I SUH. Based on the results of the investigation of land suitability; and analysis of rainfall intensities and flood discharges, the proposed flood mitigation in Seroja street is by installing biopore infiltration holes along Seroja street for storing water and reducing the risk of flooding in the area.

scholarly journals Evaluation of Dimensions and Drainage Performance Office in the Aceh Tamiang Area Kuala Simpang

2021 ◽  
Vol 3 (1) ◽  
pp. 20-32
Author(s):  
Kamaluddin Lubis
Keyword(s):  
Channel Capacity ◽  
Discharge Capacity ◽  
Return Period ◽  
Rainfall Intensity ◽  
Drainage Channel ◽  
Flood Discharge ◽  
Discharge Plan ◽  
Runoff Discharge ◽  
High Degree

The Aceh Tamiang office area is one of the office areas in Kuala Simpang which consists of various offices in the Aceh Tamiang area. The purpose of this research is to identify the drainage condition of the existing primary drainage channel which accommodates runoff discharge, the shape and direction of the flow in the inundation channel in the Aceh Tamiang Kuala Simpang office area, which is expected to help solve the problem of flooding in the 832 m3 / second. And for the channel capacity in this primary drainage drainage of 0.829 m3 / sec, the value is smaller than the planned flood discharge (Qr). Rainfall intensity (I) of 126,432 mm / hour. The plan flood discharge (Qr) for a 5-year return period yields 2,551 m3 / second and the value for channel discharge capacity (Qs) is obtained from the calculation of 2,216 m3 / second. This value is smaller than the value of the planned flood discharge.area. From the results of research conducted by the Aceh Tamiang Kuala Simpang office area is a location with a fairly high degree of rainfall, with a rainfall intensity (I) of 126,432 mm / hour and a flood discharge plan for a 5-year return period obtained a result of 0.

Progress in the use of drainage network indices for rainfall-runoff modelling and runoff prediction

1994 ◽  
Vol 18 (4) ◽  
pp. 539-557 ◽  
Author(s):  
Geraldene Wharton
Keyword(s):  
Drainage Basin ◽  
Dynamic Network ◽  
Network Routing ◽  
Future Research ◽  
Drainage Network ◽  
Rainfall Runoff ◽  
Widespread Application ◽  
Digital Format ◽  
Drainage Networks ◽  
Runoff Prediction

Traditional catchment-based approaches to runoff prediction suffer from the problem that it is difficult to interpret the collective physical significance of a large number of intercorrelated drainage basin variables. This has highlighted the need for a sensitive and meaningful index to relate the basin character to the discharge produced. Network routing models also require an appropriate descriptor of drainage basin form to relate to hydrologic response characteristics. An index of the drainage network is potentially the most valuable because it responds to precipitation, reflects the characteristics of the basin and affects runoff. Although a large number of drainage network indices have been developed they have proved inadequate in their failure to describe the dynamic nature of drainage networks. Future research into the use of drainage networks for rainfall- runoff modelling and runoff prediction needs to have as its central aim the development of a dynamic network index which has physical meaning for drainage basins of all sizes and which is quick and easy to calculate from data that are rapidly obtainable. Despite the improved resolution of satellite imagery its high cost still prevents the widespread application of satellite remote sensing techniques to monitoring storm-specific drainage network changes. However, the increased availability of topographic data in digital format and the recent developments in digital elevation models (DEMs) have demonstrated the potential for the rapid derivation of both perennial and extended drainage networks from which network expansion potential can be calculated.

Analisa Kapasitas Penampang Sungai Kali Gunting Di Kabupaten Jombang

2018 ◽  
Vol 9 (2) ◽  
pp. 80-85
Author(s):  
Saiful Arfaah ◽  
Iswinarti
Keyword(s):  
Water Level ◽  
River Water ◽  
Cross Section ◽  
Return Period ◽  
Flood Mitigation ◽  
Mitigation Measures ◽  
Flood Water ◽  
Flow Parameters ◽  
Flood Discharge ◽  
Level Profile

The cause of flooding in the watershed area, one of which is caused by the inability of the river profile to accommodate the existing discharge (overflow). This research is intended to examine flood discharge and flood water level profile of Kali Gunting as a first step to determine flood mitigation solutions. Analysis of flood water level profiles using the Hec-Race 4.0 modeling program. With the help of this program, it is expected to be able to accommodate the flow parameters that are so complex. After modeling and knowing the capabilities of each part (cross section), this result will be a technical reference in determining flood mitigation measures. From the results of the study, the analysis of the potential for flooding in the scissor area was obtained as a result of the flood discharge capacity at scissors times = 301.00m3 / dt, and the emission times = 136.66m3 / dt for the 50th return period. The results of the Q50th calculation show that the condition of K. Scissors P0-P36 river water overflows / floods because the flood water level is above the eksesting embankment, while P36-P46 does not overflow / does not flood because the flood water level is below the eksesting dike. K. Panir condition P0-P48 river water overflows / floods because the flood water level is above the eksesting embankment, while P48-P60 does not overflow / does not flood because the flood water level is below the eksesting embankment

scholarly journals ANALYSIS OF DRAINAGE CHANNEL CAPACITY AT SINDANG STREET IN SINDANG HOUSE PUMP AREA

ASTONJADRO ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 132
Author(s):  
Mohammad Imamuddin ◽  
Dwi Cahyanto
Keyword(s):  
Channel Capacity ◽  
Rainfall Intensity ◽  
Rational Method ◽  
Drainage Channel ◽  
Distribution Method ◽  
Rainfall Station ◽  
Storage Pool ◽  
Using Data ◽  
Pump House ◽  
Pearson Iii Distribution

<p>Sindang street, which is located in North Rawabadak Sub-district, Koja District, is one of the areas in North Jakarta Administrative City which is an area that is prone to flooding. Even though a working pump house is available, there are still puddles in several places. One of the problems that occur is the channel that drains water into the storage pool narrowing due to sedimentation in the channel. By analyzing the channel using the Log Pearson III distribution method using data obtained from the STA Tanjung Priok Rainfall Station, the rainfall intensity that occurs in a 5 year cycle is 170.748 mm, the Mononobe equation is used to find the intensity of rain per hour that occurs. Then it can be searched for the planned rain discharge using a Rational Method so that it is known that there are 2 channels, namely (P and Q) unable to accommodate the rainfall that occurs.</p>

scholarly journals NUMERICAL METHOD APPROACH TO ANALYSIS OF DRAINAGE CHANNELS OF PIT-3 WEST BANKO TANJUNG ENIM

2021 ◽  
Vol 3 (1) ◽  
pp. 021-031
Author(s):  
Arif Satria Rusmana ◽  
Achmad Syarifudin ◽  
Henggar Risa Destania
Keyword(s):  
Mine Drainage ◽  
Water Discharge ◽  
Network System ◽  
Drainage Network ◽  
Drainage Channel ◽  
Normal Flow ◽  
Flow Rates ◽  
Drainage Channels ◽  
Safe Condition ◽  
Method Approach

The drainage network system should be designed to accommodate normal flow rates, especially during the rainy season. This means that the capacity of the drainage channel has been calculated to accommodate the water discharge that occurs so that the area in question does not experience puddles or the channel can to be function properly. For this reason, research is needed to analyze the ability of the ex-coal mine drainage channel in PIT-3 West Banko Tanjung Enim. The research was carried out with the help of the HEC-RAS software program to see the changes in the water level in the drainage channel where the water was overflowing from the channel body. The results showed that all the section profiles of the drainage channel (P1) till (P10) were still in the safe condition or the channel was still stable (stable channel).

scholarly journals Application of Remotely Sensed Rainfall Data in Rainfall-Runoff Modelling. A Case of Pangani River Basin, Tanzania

2014 ◽  
Vol 35 (1) ◽  
pp. 1-14
Author(s):  
Joel Nobert ◽  
Patric Kibasa
Keyword(s):  
River Basin ◽  
Average Method ◽  
River Flow ◽  
Tropical Rainfall Measuring Mission ◽  
Rainfall Data ◽  
Coefficient Of Determination ◽  
Rainfall Runoff ◽  
Data Set ◽  
Satellite Rainfall ◽  
Areal Rainfall

Rainfall runoff modelling in a river basin is vital for number of hydrologic applicationincluding water resources assessment. However, rainfall data from sparse gauging stationsare usually inadequate for modelling which is a major concern in Tanzania. This studypresents the results of comparison of Tropical Rainfall Measuring Mission (TRMM)satellite rainfall products at daily and monthly time-steps with ground stations rainfalldata; and explores the possibility of using satellite rainfall data for rainfall runoffmodelling in Pangani River Basin, Tanzania. Statistical analysis was carried out to find thecorrelation between the ground stations data and TRMM estimates. It was found thatTRMM estimates at monthly scale compare reasonably well with ground stations data.Time series comparison was also done at daily and annual time scales. Monthly and annualtime series compared well with coefficient of determination of 0.68 and 0.70, respectively.It was also found that areal rainfall comparison in the northern parts of the study area hadpoor results compared to the rest of areas. On the other hand, rainfall runoff modellingwith ground stations data alone and TRMM data set alone was carried out using five Real-Time River Flow Forecasting System models and then outputs combined by Models OutputsCombination Techniques. The results showed that ground stations data performed betterduring calibration period with coefficient of efficiency of 76.7%, 81.7% and 89.1% forSimple Average Method, Weight Average Method and Neural Network Method respectively.Simulation results using TRMM data were 59.8%, 73.5% and 76.8%. It can therefore beconcluded that TRMM data are adequate and promising in hydrological modelling.

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