The methods available for gully control are – (1) Diversion of runoff, (2) Vegetative methods, (3) Construction of temporary structures, and (4) Construction of permanent structures. (1) Diversion of Runoff: Diversion of runoff is achieved by constructing diversion drains. The diversion drain is a shallow channel put across the slope above the gully. The design principles of diversion drains are [...]
The following article will guide you about how to design gully control structures. Design of Gully Control Structures: There are three steps followed in the design of gully control structures. These are: (1) Hydrologic design, (2) Hydraulic design, and (3) Structural design. (1) Hydrologic Design: The hydrologic design consists in estimating the runoff which the structure is expected to handle. [...]
In this article we will discuss about how to determine and estimate erodibility factor(k) of soil. Determination of K-Factor: The first study on erodibility of materials was done by Hjulstrom. They developed a curve, called Hjulstrom's diagram which includes three sectors (erosion, transport and sedimentation) depending on water velocity and the diameter of soil particles. Analysis of the erosion sector [...]