Please use this identifier to cite or link to this item: http://localhost:8081/xmlui/handle/123456789/4678
Title: DRAINAGE OF IRRIGATED AGRICULTURAL LANDS - A CASE STUDY
Authors: Bhagoria, Dinesh Kumar
Keywords: WATER RESOURCES DEVELOPMENT AND MANAGEMENT;DRAINAGE;IRRIGATED AGRICULTURAL LANDS;ISOTROPIC SOIL
Issue Date: 1993
Abstract: The theories available for the design of drainage system, have mostly been developed for homogeneous and isotropic soil. However, the homogeneous and isotropic medium is an 'ideal case which may not always be occuring in nature. A natural soil profile usually is composed of layers identified by distinct chemical and physical properties. The sedimentary deposit laid down in distinct layer have different hydraulic properties, this resulting in layered soils has been reported from differs-ant parts of the World. In layered soil, the permeability usually decrease downwards. A simple way of handling the layered soil problem for design of subsurface drainage has been to assume the lower lesser permeable layer to be impermeable. This assumption has been applied in situa-tion where the hydraulic conductivity of the lower layer is about one fifth to one tenth of that of the upper layer. It has been reported that this assumption lead to erroneous result. Because of the above facts, the intended objective for the present study are outlined as follows : (i) To review the literature on the drainage of layered soil for steady state conditions. (ii) To study analytical solution for the steady state sub- surface drainage under constant rate of replenishment, for two layer soil resting on a horizontal impermeable bed, for two cases namely when the water level in drain is higher than and at the same level as the interface of the two layers. (iii) To apply the analytical formation to field data as a case study.
URI: http://hdl.handle.net/123456789/4678
Other Identifiers: M.Tech
Research Supervisor/ Guide: Bhatta, P. K.
Sarma, Nayan
metadata.dc.type: M.Tech Dessertation
Appears in Collections:MASTERS' THESES (WRDM)

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