ANALISIS KEBUTUHAN U-DITCH DAN BUIS BETON SEBAGAI SARANA DRAINASE GANG

Abstract

Given the conditions in the hamlet Nandan Sariharjo Ngaglik Sleman: 1) alley drainage and rainwater conservation substandard, 2) maintenance of channels drainage alley by the people who have not been up. Purpose of applying science and technology for communities in Nandan's Hamlet: 1) the smooth flow of rainwater in the lower reaches of the drainage so as not to occur puddle in an alley, 2) smoothness of rainwater infiltration in the alley by using infiltration wells. Activity Field of physical infrastructure includes 1) installation of drainage passage, downstream in RT 02, 2) installation of alley infiltration wells for water conservation in RT 01. Methods of Implementation Activities: 1) extension: the installation and maintenance procedures drainage and infiltration wells alley, 2) mentoring: planning, implementation, and supervision of the installation of drainage and infiltration wells alley. With outputs: 1) channel u drainage ditch covered alley 30 x 40 x 120 cm of concrete K-350 along a slope of 20,4 m channel = 0,02 = 1/50, velocity = 1,52 m/s, and discharge: 0,2 m/det³, 2) well impregnating alley of concrete pipe K-300, Ø 80 cm depth of 4 m by five pieces with moderate soil permeability (loam/silt, 2,0 to 6,5 cm/hour) can absorb wide field rainfed 503 m².