Browsing by Author "Moriza, G."

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    PENENTUAN BESARNYA LAJU INFILTRASI AIR OLEH TANAH DENGAN METODE SINGLE RING INFILTROMETER
    (2013-07-23) Wati, Widia; Juandi; Moriza, G.
    This research has been conducted to determine the infiltration rate of the soil water at Riau University, Tampan districs, Pekanbaru City, with a single ring infiltrometer method. Infiltration studies were conducted at 4 points and there are 2 measurements, each point 60 cm and 80 cm depth. Measurement results show the value of each drop of water by ground stager, then process with the excel program to obtain the value of the slope (m) and the value of the constant (k) of each measurement. Data is analized to obtain the rate of infiltration at any point. The results of the first observation point, Riau University Hospital, of 80 cm and 60 cm depth are 3,6 cm/hour and 3,6 cm/hour. The results of the second observation point, Rectorate of Riau University, of 80 cm and 60 cm depth are 3,6 cm/hour and 4,8 cm/hour. The results of the third observation point, Mini Stadium of Riau University, of 80 cm and 60 cm depth are 2,4 cm/hour and 3,6 cm/hour. The result of the fourth observation point, Riau Main Stadium, of 80 cm and 60 cm depth are 2,4 cm/hour and 3,6 cm/hour. The average value of infiltration shows that the University of Riau has land with moderate infiltration.
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    PENENTUAN PERMEABILITAS TANAH DI BEBERAPA KELURAHAN KECAMATAN TAMPAN KOTA PEKANBARU
    (2013-07-23) Julianti; Juandi; Moriza, G.
    The investigation of soil permeability in Tampan region Pekanbaru especially in Simpang baru intersection, Tuah Karya, Delima and Sidomulyo Barat has been done. This study aims to determine the soil permeability using the calculation of law Darcy, to find out the permeability or infiltration of area. Based on the results, every village has permeability depends on the type of soil. Simpang Baru has the greatest permeabilty value of 0,9789 cm/sec in the village because it contains a lot of sand, hence it can be categorized very fast. Meanwhile Delima area and Tuah Karya have low permeablity value from 0,4838 cm/sec to 0,5782 cm/sec corresponding to slow and very slow respectively. Sidomulyo Barat village has a sandy loam soil with permeability 0,909 cm/sec which is quite fast.
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    PENENTUAN POTENSI AIR TANAH DENGAN METODE PUMPING TEST
    (2013-07-23) Weni, F.; Juandi; Moriza, G.
    The value of soil water potential at Yepupa Regency and Griyo Puspito Regency subdisditrict of Tampan in pekanbaru by using Pumping Test method is reported. The result of the measurement shows the reduction value of water soil and explosion debit on every step, data were processed by using microsoft excel to achieve the value of aquifer loss (B) and the value of well loss (C) from every measured aquifer. Achieved data is processed by formula which is used to obtain well efficiency value percentage in every explusion debit level. The result of the first location at Yepupa regency produced 32% in maximum debit and 65% in minimum expulsion debit. The second location produced 63% in minimum expulsion debit and 30% in maximum. The third location of the research showed that well efeciency value in minimum expulsion debit reached 43% while in maximum expulsion debit the value became 16%. The fourth location produced 29% in minimum expulsion debit meanwhile 15% in maximum.