EVALUATION OF DRAINAGE CHANNELS IN JOGOROTO VILLAGE
JOGOROTO SUB-DISTRICT, JOMBANG DISTRICT
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Institusion
Universitas Darul ulum
Author
Afani, Mohamad
Subject
TA Engineering (General). Civil engineering (General)
Datestamp
2024-10-09 08:38:42
Abstract :
EVALUATION OF DRAINAGE CHANNELS IN JOGOROTO VILLAGE JOGOROTO SUB-DISTRICT, JOMBANG DISTRICT Mohamad afani NIM202322201048 Drainage is one of the technical efforts to reduce excess water in the area, be it rainwater, seepage water, or excessive irrigation water, so that the area can operate normally. The purpose of this research is to identify and evaluate existing drainage channels in accommodating runoff discharge in Jogoroto Village Environment. The research method used is descriptive quantitative, which is a method of calculation and description of the results of field data processing. Calculation of rainfall data follows the Drainage Planning Guidelines of the Department of Public Works and Indonesian National Standards (SNI). Rainfall distribution analysis is done with Normal, Log Normal, Log Pearson III and Gumbel distributions. Suitability test with chi squared test with 0.05 testing level. With the Mononobe formula, the rainfall intensity value for a 5-year return period is 164.60 mm/hour. The results of this study obtained a planned flood discharge (Qr) using the rational formula with a 5-year return period of 0.31 m3 /second while the channel capacity (Qs) obtained results of 0.24 m3 /second so that Qr > Qs in this case the drainage channel in Jogoroto Village, precisely in North Sumberbendo Hamlet, is unable to accommodate the runoff discharge so it is necessary to redimension the channel. In addition, the flood problem is also due to the concave topography of the land, sedimentation, clogging garbage, poor flow direction due to the flat slope of the channel, there are also mounds of soil resulting from deposition, the cleanliness of the surrounding environment which makes runoff flow difficult to flow and the lack of regular maintenance of drainage channels which makes the drainage network system less well functioning so that puddles or floods occur around the jogoroto Village area, Jogoroto District, Jombang Regency
EVALUATION OF DRAINAGE CHANNELS IN JOGOROTO VILLAGE JOGOROTO SUB-DISTRICT, JOMBANG DISTRICT Mohamad afani NIM202322201048 Drainage is one of the technical efforts to reduce excess water in the area, be it rainwater, seepage water, or excessive irrigation water, so that the area can operate normally. The purpose of this research is to identify and evaluate existing drainage channels in accommodating runoff discharge in Jogoroto Village Environment. The research method used is descriptive quantitative, which is a method of calculation and description of the results of field data processing. Calculation of rainfall data follows the Drainage Planning Guidelines of the Department of Public Works and Indonesian National Standards (SNI). Rainfall distribution analysis is done with Normal, Log Normal, Log Pearson III and Gumbel distributions. Suitability test with chi squared test with 0.05 testing level. With the Mononobe formula, the rainfall intensity value for a 5-year return period is 164.60 mm/hour. The results of this study obtained a planned flood discharge (Qr) using the rational formula with a 5-year return period of 0.31 m3 /second while the channel capacity (Qs) obtained results of 0.24 m3 /second so that Qr > Qs in this case the drainage channel in Jogoroto Village, precisely in North Sumberbendo Hamlet, is unable to accommodate the runoff discharge so it is necessary to redimension the channel. In addition, the flood problem is also due to the concave topography of the land, sedimentation, clogging garbage, poor flow direction due to the flat slope of the channel, there are also mounds of soil resulting from deposition, the cleanliness of the surrounding environment which makes runoff flow difficult to flow and the lack of regular maintenance of drainage channels which makes the drainage network system less well functioning so that puddles or floods occur around the jogoroto Village area, Jogoroto District, Jombang Regency
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