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Flood Control On Secondary Sub Catchment Cerme Kidul In Drainage Systems Of Primary Canal Cerme Kidul kec. Cerme kab. Gresik Muhammad Rangga Setya; Adi Prawito
Journal of World Conference (JWC) Vol. 2 No. 1 (2020): January 2020
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/prd.v2i1.129

Abstract

Cerme District is located in South Gresik area which has an area of 71.73 km2. This area is located above the height of ± 4m sea level. While the slopes of the Cerme District are in the range 0-2% with a slope to the north. The land-use plan map of Cerme sub-district should be designated as an industrial area and residential area which is still inundated at several points. One of these puddles is in the left-hand cerme drainage system, especially in the secondary sub-catchment cerme kidul. The inundation height is between 20-30cm with inundation ± 2-4 hours. This final project can find out the results of the planned debit calculation using existing land use and land use plans, the difference in the calculation of the debit reaches 60%. While the calculation of canal capacity using planned land use can be known that 2 "safe" and 8 channel segments "need normalization".
Analysis of Boezem Kalidami Pump Capacity To Cope With Floods East Surabaya Region R. Dandy Jurindra Pratama; Adi Prawito; Farida Hardaningrum
Journal of World Conference (JWC) Vol. 3 No. 3 (2021): May 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Kalidami river has a length of 4.2 kilometers with a stretch of channels from the Airlangga, Manyar, Kertajaya, to Kejawan Putih Tambak areas. Boezem Kalidami is located at the downstream of the Kalidami river which is also equipped with a pump house and a water gate. The Log Pearson III method produces a design rainfall of 127.38 mm / 24 hours so that the rainfall is very heavy. So that it will produce a maximum flood discharge of 40.3 m³ / s and when compared to the capacity of Boezem Kalidami which is only 49,440 m³, Boezem Kalidami will fill very quickly. Coupled with the total efficient pump capacity of only 15.33 m³ / s, Boezem is only able to accommodate the first 2 hours and an overflow of 1.58 meters from Boezem Kalidami's riverside at 2.14.
Evaluation of Flood Control in Pakal District With The Construction of The Sumber Rejo Flood Pump in Surabaya City Bob Sandy Rahardjo; Adi Prawito; Ronny Durrotun Nasihien Nasihien
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Flood has always been expected in the rainy season at the Pakal District before 2019, where rainwater flows from Benowo channel to the Sumber Rejo channel and backwater flows from Lamong river to the Sumber Rejo channel. These water “attacks” from the two sides of the water bodies made Sumber Rejo flood every rainy season. In this analysis the maximum water flow rate in Sumber Rejo channel within the 20-year period (Q20) is 22,57 m3/second. To eleminate flood in Sumber Rejo channel, a flood pump station is needed to pump the waterflow from Benowo channel dan stop the backwater infiltrating from the Lamong river. Two flood pumps with a total flow rate of 6 m3/second are already installed and running at the moment, while the optimal capacity of this flood pump station should be 12 m3/second. A large water storage with capacity around 88.712 m3 is already built to keep the water elevation low enough to not overflow the Sumber Rejo channel.
Evaluation of The Capacity of The Araya Pump House in Managing Flood of Kalibokor Channel Sisi Jl. Arief Rachman Hakim Kelvin Gilang Romadhon; Adi Prawito; Farida Hardaningrum
Journal of World Conference (JWC) Vol. 4 No. 1 (2022): Januari 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Kalibokor Channel is one of the primary channels in East Surabaya. This channel overflows during the rainy season. The inundation height that occurs is between 0-15 cm. Some of the flood-prone areas that the channel passes through are Manyar, Klampis, Gebang Putih, and JL. Arif Rahman Hakim. The Surabaya City Government built the araya pump house as a helper for the Kalibokor channel in order to reduce inundation on Jl. Arief Rachman Hakim and reduce the load on the Kalibokor pump house. The study was conducted by calculating the value of the planned rain and flood discharge, then analyzing the existing one and ending by recommending a new pump capacity design. The results of the analysis calculation obtained that the planned discharge entered the Kalibokor primary channel on the side of Jl. Arief Rachman Hakim is 18.56 m3/s while the existing capacity of the Kalibokor primary channel on the side of Jl. Arief Rachman Hakim can only accommodate a capacity of 16.6 m3/s.
Comparative Analysis of the Performance of Using Kisdam Jumbo Bag with Portadam on Costs and Implementation Time as Dewatering Banur Hudah Roseantoro; Adi Prawito
IJESEMS : International Journal of Engineering Science Educatioon and Management System Vol 5 No 1 (2022): March 2022
Publisher : LPPM NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/ijieeb.v5i1.1809

Abstract

Dewatering (drying work) is a civil work that aims to control water (ground/surface water) so as not to interfere/impede the process of implementing a construction work, especially for the implementation of structural parts that are in the ground and below the ground water level. Dewatering work is closely related to kisdam. kisdamis a temporary barrier or barrier between water and the construction site for irrigation construction There are several methods used in the implementation of a project, one of which is the conventional/jumbo bag kisdam method which is carried out at the project site. There is also a portadam/non-conventional kisdam method which is basically the same asa temporary barrier or barrier between water and the construction site but what distinguishes it is that the installation/application process is carried out in dry and wet places, then brought to the project site to be assembled into a unified structure. In this final project, the analytical data needed for the comparison of these two systems is secondary data. Secondary data is data obtained from the implementing party in the form of unit price analysis. In this final project, an alternative design for non-conventional design is planned by comparing the cost analysis and implementation time. With a comparative analysis of the performance of the kisdam jumbo bag method/conventional and kisdam portadam/non-conventional, the results obtained that the jumbo bag/conventional kisdam method requires implementation time of 63 days at a cost of Rp. 44,409,856, - and the portadam/non-conventional kisdam method takes 102 days to implement and costs Rp. 28. 084.442,-.
Analysis of Urban Drainage System: (Darmo Satellite Channel Case Study) Surabaya City Wahyu Joko Pramono; Adi Prawito
Journal of World Conference (JWC) Vol. 4 No. 2 (2022): March 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

rainage channel designed to accommodate plans with precipitation data, safe based on the use of, land and the dimensions. channelDrainage channel in water catchment areas along a channel darmo satellite is one of infrastructures supporting functioning of an urban system in the city surabaya.Changes in land over the function of the green space into land settlement and trade services responsible for the runoff of the surface in several locations in the city of surabaya. The problem a runoff a surface that often happens when the rainy season resulting from increased discharge of water drainage channel water catchment areas in the rain along a channel darmo, satellite causing the need for a study to analyze the performance of drainage channel. The data used in this study is secondary data, namely: the last 10 years of rainfall data obtained from rain stations (gunungsari rain stations, simo, and cages) and drainage channel data. While the methods used are hydrological analysis, arithmetic methods, and gumble methods. The data obtained is then analyzed to find out the plan discharge and drainage channel capacity. The analysis conducted in this study includes hydrological and hydraulic analysis. Hydrological analysis includes: 1) calculation of planned rainfall with Gumbel distribution with a re-period of two and five years, and 2) calculation of plan discharge using HSS Nakayasu.
Effect of Kandangan Pump House on Long Storage Diversi Gunungsari in Sememi Retsadika Kusriardi; Adi Prawito; Farida Hardaningrum
Neutron Vol 21 No 1 (2021): JULY 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

The Surabaya City Government has built a box culvert in the Gunungsari Diversi channel for the Sememi segment to Banjar Sugihan and the Kandangan pump house. The purpose of this study is to describe and analyze the operational impact of the Kandangan pump on the Sememi box culvert capacity. Therefore, the Surabaya City Government built the Sememi box culvert as a long storage in the primary channel of the Gunungsari diversion in order to reduce inundation as well as function as a road that can overcome congestion in the area. The Surabaya City Government has also built a Kandangan pump house as an outlet rather than a long storage at the Gunungsari version. The reduction of inundation and congestion can increase the wheels of the economy which have a global impact on cities around Surabaya as well as a smoother access road for the people in West Surabaya to the middle of the city.
Dimension Analysis Of The Emergency Spillway Of Tirawan Dam With The Application Of The System Dynamic Model Awan Risdiyanto; Adi Prawito
U Karst Vol 6, No 1 (2022): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2988.53 KB) | DOI: 10.30737/ukarst.v6i1.2477

Abstract

Tirawan Dam emergency spillway is planned to be able to drain the initial flood discharge when the gate above the main spillway is closed so that there will be sufficient time to open the gate to pass the peak flood discharge through the spillway safely. The emergency spillway elevation is designed to accommodate maximum water as a natural reserve during the dry season. This study aims to analyze the factors that play a role in emergency spillway design in meeting the availability of optimal raw water storage and increasing the safety factor against flooding using a simulation modeling method with the help of the Vensim PLE program. The modeling is made in three stages. The first is the analysis of the system model, the second is the creation of a caustic diagram, and the third stage is the simulation of the model and scenario model. The simulation results of this model scenario obtained an effective emergency spillway elevation of +69.50 m and a width of 20 m. The spillway can pass the Q1000 design flood without the control gate operation with a freeboard of 0.41 m with a raw water reserve of 240,649.69 m3. From the simulation results, it is also known that the operation of the main spillway serves to add a safety factor to the discharge capacity of the flood discharge during an emergency condition and cannot be operated to optimize the reservoir.
Study of Agung Sleman Mosque Minaret Construction Design: Errors and Solutions Ala Ali Qasem Alraimi; Muhammad Ikhsan Setiawan; Adi Prawito
Neutron Vol 22 No 01 (2022): JULY 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/neutron.v22i01.171

Abstract

This study helps to solve the problem at the minaret of Agung Mosque which costs about (Rp16.000.000.000), located in Yogyakarta city, Indonesia, Sleman street, where its high sixty seven meters from the ground and it consists of fifty floors, where analyze and prove the safety of the minaret dome, replace the dome, repair the fallen parts from middle floors, and calculate the total cost of replacing the dome and repairing fallen parts of the minaret. This study proved that the existing design reinforcement of the dome is totally safe, estimated the total cost of solving the minaret problems which (Rp2, 281,873,633.54). Where the total costs of replacing the dome were (Rp2, 073,135,813), the total costs of fixing the damaged “fallen” parts of the middle floors were (Rp1, 294,762.24), and the total of the unexpected costs were (Rp207, 443,057.59)
Analysis of The Implementation of The Excavation Work of Blasting Stone in The Quarry For Rockfill Pile of The Beringin Sila Dam Construction Work Project Package-1 Sumbawa Regency, NTB. Ikhwan Sholihuddin; Adi Prawito
Journal of World Conference (JWC) Vol. 4 No. 3 (2022): May 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Embankment dams based on the grain size of the embankment material used are divided into 2 types, namely rock filled dams and earth fill dams. The Beringin Sila Dam is a random and rock fill dam with an upright core which is in the process of being built by stockpiling materials such as stone, gravel, clay, and soil. Blasting is an activity of breaking up a material (rock) using explosives or the process of an explosion, in blasting one of the important things that must be considered is the fragmentation of rock resulting from blasting. The method is carried out by observing the realization in the field and analyzing project data. The purpose of this study was to determine the productivity of heavy equipment, to analyze the realization costs of excavation and heap of blasted rock at the quarry location. The results of this study indicate that the productivity of drilling tools for drilling tools, with the Crawler Rock Drill (CRD) tool, it gets 5 holes/hour, while with the Hydraulic Crawler Drill (HCR) it gets 4 holes/hour. Productivity of loading and unloading equipment on excavation work and blasting heaps of rock at the quarry location, with an average of 25 units of transportation equipment and 4 units of CAT 330 excavator as loading equipment. For loading equipment, the production yield is 41.40 m3/hour, while for transportation equipment the production yield is 6.62 m3/hour. The realization cost for excavation work and rock heap from blasting at the quarry location in July – September required a cost of Rp.11,124,373,500.00 including the cost of wages, materials, and tools.