What Is Drainage Gallery Civil Engineering
Drainage galleries are channels in gravity dams that run parallel to the top of the dam and occupy approximately two-thirds of the base width from the upstream face. They prevent water from permeating the water face and direct it away from the downstream face. Drainage galleries are typically located in the deepest area of the dam.
What are the disadvantages of a drainage gallery?
The use of drainage galleries in dams can cause significant scheduling problems and weaken the overall strength of the structure. Construction can be slowed down by up to 50%, and galleries should only be used when very large internal flows necessitate their use.
What is a surface drainage system?
A surface drainage system is a way of designing and engineering a landscape to prevent ponding water and flooding by allowing for the free flow of water away from the area.
How do I become a drainage engineer?
To become a drainage engineer, one typically needs a Bachelor's degree in civil, environmental or water resources engineering, and registration as a professional engineer (PE) is often preferred. Certain skills are also required to accomplish the responsibilities of a drainage engineer.
What is a drainage gallery in a gravity dam?
A drainage gallery is a feature in a gravity dam that helps to handle uplift pressure and allows for inspection. It is particularly important in higher dams, as water pressure is a major load that must be calculated using hydrostatic pressure law.
What is the effect of a drainage gallery at the dam heel?
Installation of a drainage gallery at the dam heel reduces the Up/W to 0.14, indicating its positive effect. It prevents a vertical tensile stress in the upstream heel of the dam, making it beneficial. However, for B/b>0.32, it is not recommended.
What are drainage galleries?
Drainage galleries are underground structures intended to facilitate the drainage of water and prevent it from accumulating in certain areas. They're commonly used in dams and are connected to vertical drains throughout the dam. The foundation drainage gallery is a specific type of drainage gallery that runs throughout the length of the dam, at about the same height above.
To become a drainage engineer, one can obtain a degree or enrol in a college or specialist training programme. Alternatively, finding an apprenticeship or gaining work experience can be helpful. A compelling CV can increase job prospects when applying for drainage engineer positions.
What is a drainage engineer job description?
A drainage engineer job description refers to a detailed overview of the responsibilities, duties, and expectations of a professional engaged in the planning, design, and implementation of drainage systems. The job description highlights the expertise and skills required to evaluate various options and provide recommendations that align with economic and engineering objectives.
How do I become a CCTV drain engineer?
To become a CCTV drain engineer, you need to enroll on a NADC-approved training course. The course covers essential skills like drain design, repair techniques, common problems, and how to assess and fix a drainage issue. This training will equip you with the experience you need to handle CCTV pipe inspections and CCTV drain surveys confidently.
Who are the drainage engineer trainers?
The Drainage Engineer course is lead by experienced trainers, Darren Hamilton and Chris Wilde, who have a combined experience of 55 years within the drainage industry. Their expertise has been utilized to create an engaging and comprehensive programme that Lanes for Drains is proud of.
Surface drainage systems are canals designed to manage runoff water through shallow ditches arranged in parallel. It is important to understand the various types of surface drainage systems, their purpose, and selection criteria to determine the most suitable option for a property.
What is the purpose of a drainage gallery in a dam?
A drainage gallery is a component of a dam that serves two main purposes: to handle uplift pressure and to allow for inspections. The gallery is particularly important for higher dams.
What are the positive and negative effects of subsurface drainage?
Subsurface drainage systems have positive impacts by reducing surface runoff and loss of substances. However, there are concerns about potential negative impacts of drainage on the environment.
What are the problems with drainage systems?
One problem with drainage systems is the potential for damage to natural bodies of water if they are not properly maintained or installed. This can result in dangerous elements being carried into streams, rivers, lakes, ponds, and creeks.
