15-09-2012, 04:36 PM
Please send me a presentation on NEW TECHNIQUE OF EROSION CONTROL ON HILL ROADS
15-09-2012, 04:36 PM
Please send me a presentation on NEW TECHNIQUE OF EROSION CONTROL ON HILL ROADS
16-10-2012, 11:11 AM
to get information about the topic "NEW TECHNIQUES OF EROSION CONTROLS ON HILL ROADS" full report ppt and related topic refer the link bellow
https://seminarproject.net/Thread-new-te...ull-report https://seminarproject.net/Thread-new-te...oads--2199
29-05-2013, 01:02 PM
NEW TECHNIQUES OF EROSION CONTROLS ON HILL ROADS
NEW TECHNIQUES.ppt (Size: 473 KB / Downloads: 63) INTRODUCTION Transportation contributes all round development of a country and hence plays a vital rate towards its progress. If the highways are not properly located and may contribute sediments to streams. The control of soil and water is basic to the protection of the road structure and therefore highway design, construction and maintenance must be continually evaluated to minimize erosion and sedimentation problems MECHANISM OF SURFACE EROSION Rain drops hit the slope surface Impact of raindrop detaches the particle of soil The runoff water flowing on slope surface transports the detached particle and may also contribute to further detachment WIND EROSION Exposed slope of non-cohesive loose and dry soil Lack of shelter from wind Exposed surface with out any protection RAIN EROSION Rain erosion is phenomenon of transporting of soil particle due to water action, the influencing factors for rain water erosion are Potential of flowing water for initiating particle detachment Physical features ie topography, gradient, embankment slope etc Soil erodibility governed by clay content, particle size distribution, compaction , permeability, shear strength parameters etc of the soil OBJECTIVES OF EROSION CONTROL To prevent damage to land adjacent to the road structure To reduce the soil loss from the land width of road, which silts up drainage channel and pollute rivers To contribute to the improvement of the aesthetics of the landscape To protect and preserve the earth work of fill or cut slope, ditches and drainage structure REINFORCED VEGETATION Reinforced vegetation by using geo-textiles & other materials improving slop stability Synthetics jute & coir used as geo-textiles Geo-textiles are used for engineering applications due to their long life Disadvantage is that it causes air and water pollution while their non biodegradibility is responsible for increasing soil pollution CONCLUSION In all new construction erosion levels should be assessed in advance and appropriate protection measures are incorpoated in design. In case of existing structures facing erosion problems, both short term and long term measures should be considered to ensure stability. For overall economy use of locally available materials should be the first choice. In extreme climatic conditions polymeric grids with root reinforcing mechanism may be used even though they are costly
05-09-2015, 11:30 AM
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