Determination of Geohydraulic Parameter Values Through Empirical Approach Analysis of Geoelectrical Methods Study Case in Cikole Lembang Bandung Aisyah Dewi Rulyadi (a*), Gumilar Utamas Nugraha (b), Selly Feranie (a)
a) Department of Physics Education, University Indonesia of Education, Jl. Dr. Setiabudi No. 229, Isola, Kec. Sukasari, Kota Bandung, 40154
b) Geotechnology Research and Development, Lembaga Ilmu Pengetahuan Indonesia Jl. Cisitu Sangkuriang Bandung, Jawa Barat, 40135
Abstract
Measurement of hydraulic parameters is essential in and groundwater resources. The hydraulic parameters consist of hydraulic conductivity and transmissivity. Hydraulic conductivity can be interpreted as the potential for rocks to channel the water in units of length per time. While hydraulic transmissivity is the capacity of the aquifer to drain water throughout the rock in unit time. Hydraulic parameters are usually obtained using the conventional steps which called pumping test. This method caused more expensive and took days to observe. This paper presents a study to find best method from value of hydraulic parameters with and empirical in Cikole Lembang Bandung and compare the result with the reference value of the direct pumping test. Based on the result hydraulic conductivity and transmissivity data obtained by method of Niwas and Singhal was 323.20 until 1661.21 m/day. Meanwhile through the Heigold Approach, the result of hydraulic conductivity were 0.57 until 2.65 m/day. And the result of hydraulic transmissivity obtained by Niwas and Singhal method was 396.68 until 25175.71 m2/day. and Heigold method were 1.98 until 46.23 m2/day. From the data that has bees obtained using an empirical approach, compared with the pumping test it can be seen that Heigold method has a value with a range that is relatively closer to the value of the pumping test result. so it can conclude that Heigold method are more accurate to obtained the hydraulic parameter values.
