फरक पाना| Zircon Creations

The selection of a dam site and the type of dam to be built is a crucial decision that is influenced by a variety of factors, including topography, geology and foundation conditions, materials availability, spillway size and location, and potential for earthquakes. Topography is a major factor in the selection of a dam site, as it can impact the type of dam that is most suitable for a particular location. For example, a narrow stream flowing between high, rocky walls may suggest a concrete overflow dam, while low, rolling plains may suggest an earthfill dam with a separate spillway. The location of the spillway is also an important consideration that is heavily influenced by the local topography. Geology and foundation conditions also play a significant role in the selection of a dam site. The geological character and thickness of the strata that will bear the weight of the dam, as well as their inclination, permeability, and relationship to underlying strata, existing faul...

Engineering geological investigations play a vital role in the planning and design of hydroelectric projects, as they provide crucial information about the geological structure and properties of the terrain that the project will be built on. This information is essential for determining the techno-economic feasibility of a proposed project and ensuring that it meets current safety standards. The mainstay of geological investigations for hydroelectric projects is subsurface exploration, which includes geophysical investigation, diamond core drilling, and exploratory drifts. These methods allow engineers to gather information about the lithology, stratigraphy, and geological structure of the area, as well as the geomechanical properties of the ground and the presence of any extraordinary phenomena that may affect the stability and safety of the proposed structure.The scope of the geological investigation is determined by the stage of the project, with preliminary and reconnaissance inves...

  Overbreak in tunneling Overbreak is a section of the damaged zone in tunneling that extends beyond the calculated profile for support pieces that fall during rock excavation. It elevates the entire cost of tunneling to 15% or even more than the original construction budget. Influence factors for overbreak Over-break is discovered to be the result of the complicated interplay between poor excavation sequences, unprofessional blasting procedures, and insufficient main support. The presence of unfavorable joints, their orientations, non-cohesive filling materials, and poor groundwater conditions all contribute to the incidence of quick overbreak. Tunnel blasting, like conventional rock slope blasting, can be controlled by using controlled blasting techniques including pre-splitting, trim blasting, and line drilling, which operates best in huge rock formations. A simple crack between adjacent blast holes does not occur in geologically complicated material. A shattered shatter zone oc...