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Journal : Journal of Civil Engineering, Planning, and Design (JCEPD)

Evaluation of Bozem and Drainage Channels of Jade Hamlet Residential in Gresik Jenny Caroline; Arintha Indah Dwi Syafiarti
Journal of Civil Engineering, Planning and Design Vol 1, No 2 (2022): Journal of Civil Engineering Planning and Design
Publisher : Faculty of Civil Engeneering and Planning - ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jcepd.2022.v1i2.3760

Abstract

Drainage refers to a vital component for water disposal so that a region or area can hinder potential puddle due to excessive water on the land surface. Therefore, a good plan adjusting the land condition of residential area belongs to a fundamental matter. Jade Hamlet Residence is located on Hulaan highway, Hulaan Urban Village, Menganti District, Gresik Regency, covering an area ±20 hectares and consisting of housing area, park, public facility, and catchment area. The drainage channel at this residence serves as the drainage for rain water and household dirty water disposal. During the rainy season in 2018 and 2019, the channel and bozem or drainage basin of this residence encountered overflowing and eventually caused puddle. To overcome this problem, the capacities of bozem and channel are in need of analysis and evaluation so as to figure out the runoff volume that can be accommodated in the bozem and investigate the discharge planned in the drainage channel by employing Log Person III method, chi-square distribution fit test, Kolmogorov-Smirnov test, rational formula, and exponential method. The results of analysis and evaluation demonstrated that the bozem capacity could not afford the runoff discharge (298.35 m3 309.55 m3), thereby demanding additional length and depth against the existing bozem. Meanwhile, the calculation of flood discharge planned for the drainage channels of S4.Ry3, S6.Ry1, S6.D1, S6.I2, S6.Cs1, S6.Rc1, S6.Rc2 indicate that they need redesigning by altering the channel dimension as the discharge capacity exceeds the channel.
Study of Inundation Management on Tertiary Drainage Channels in Keputih Tegal Surabaya City Nurhayati, Dyan Eka; Caroline, Jenny; Kusumaningrum, Dewi
Journal of Civil Engineering, Planning and Design Vol 1, No 1 (2022): May
Publisher : Faculty of Civil Engeneering and Planning - ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jcepd.2022.v1i1.3053

Abstract

In the case of heavy rain, several places in Surabaya are still submerged. The Keputih Tegal region is one of them. The Jalan Keputih Tegal channel is a tertiary drainage channel that drains into a secondary drainage channel on Jalan Raya Keputih before emptying into the Wonokromo river. The flood on Jalan Keputih Tegal occurred at a depth of 20 cm. The drainage channel on Jalan Keputih Tegal is the subject of this study, and the data utilized are secondary data in the form of rainfall data collected from the Public Works Department of Highways Surabaya and the SDMP (Surabaya Drainage Master Plan) map obtained from BAPPEKO Surabaya. The dimensions of the channel are 1.5 x 1.5 m with a capacity of 0.9 m3/s based on the flood flow from the CA region and the drainage system of the Keputih Tegal channel, which is impacted by the height of the secondary channel MAB. The channel's proportions allow for both flood discharge and backwater discharge. With a flow velocity of 0.4 m/s, the channel slope is planned to be 0.04 percent. This condition exceeds the allowed speed criteria for concrete channels, which are 1.5 m/s.
Identify The Factors Causing Cost Overrun in Waringin Group Office Projects Febriansyah, Firman; Caroline, Jenny
Journal of Civil Engineering, Planning and Design Vol 2, No 2 (2023): November
Publisher : Faculty of Civil Engeneering and Planning - ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jcepd.2023.v2i2.4747

Abstract

Infrastructure development in this globalization era has increased rapidly in line with the need for residential space, businesses, and buildings. Building construction projects have limitations, including cost limits or cost overruns. The conditions of proper use that are less efficient due to the development plan’s location can lead to several risks during construction work. This study aims to identify and analyze the factors influencing cost overruns and determine the most dominant causal factor in cost overruns. By giving questionnaires to 40 respondents, the data were collected and then treated for validity, reliability, normality, and statistical tests through SPSS software. The analysis of the data tested indicated that all variables were declared valid because the results of the correlation between the respondents' answers to each question item obtained a significant value, namely rcount rtable. The reliability test showed that the Cronbach alpha value of all variables was above 0.600. In conclusion, it was very reliable and could be trusted to be used as a variable measuring tool. The most dominant factors causing cost overruns in the Office Waringin Group project consisted of new work items at a mean of 4.33.
Evaluation of Bozem and Drainage Channels of Jade Hamlet Residential in Gresik Caroline, Jenny; Syafiarti, Arintha Indah Dwi
Journal of Civil Engineering, Planning and Design Vol 1, No 2 (2022): November
Publisher : Faculty of Civil Engeneering and Planning - ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jcepd.2022.v1i2.3760

Abstract

Drainage refers to a vital component for water disposal so that a region or area can hinder potential puddle due to excessive water on the land surface. Therefore, a good plan adjusting the land condition of residential area belongs to a fundamental matter. Jade Hamlet Residence is located on Hulaan highway, Hulaan Urban Village, Menganti District, Gresik Regency, covering an area ±20 hectares and consisting of housing area, park, public facility, and catchment area. The drainage channel at this residence serves as the drainage for rain water and household dirty water disposal. During the rainy season in 2018 and 2019, the channel and bozem or drainage basin of this residence encountered overflowing and eventually caused puddle. To overcome this problem, the capacities of bozem and channel are in need of analysis and evaluation so as to figure out the runoff volume that can be accommodated in the bozem and investigate the discharge planned in the drainage channel by employing Log Person III method, chi-square distribution fit test, Kolmogorov-Smirnov test, rational formula, and exponential method. The results of analysis and evaluation demonstrated that the bozem capacity could not afford the runoff discharge (298.35 m3 309.55 m3), thereby demanding additional length and depth against the existing bozem. Meanwhile, the calculation of flood discharge planned for the drainage channels of S4.Ry3, S6.Ry1, S6.D1, S6.I2, S6.Cs1, S6.Rc1, S6.Rc2 indicate that they need redesigning by altering the channel dimension as the discharge capacity exceeds the channel.