What is Haunching in plumbing?
The portion of the material placed in an excavation on either side of and under a pipe from the top of the bedding up to the springline or horizontal centerline of the pipe. This backfill layer extends from one trench sidewall to the opposite sidewall.
What is pipe Springline?
SPRINGLINE – The horizontal centerline of the pipe or in box section, the mid-height of the vertical wall.
How do you join a cement pipe?
The jointing of concrete pipes is carried out by two methods, namely, rigid and flexible….3. Jointing of Concrete Pipes
- Rigid Spigot and Socket Joint. Ad.
- Rigid Collar Joint.
- Semi-Flexible Spigot and Socket Joint.
- Semi-Flexible Collar Joint.
- Internal Flush Joint.
- External Flush Joint.
What is the purpose of Haunching?
A primary function of the haunch is to maintain a uniform deck thickness. Haunches are often needed to account for camber and cross-slope.
What is the flowline of a pipe?
The top of the wetted line, the water surface, or the hydraulic grade line of water flowing in an open channel or partially full conduit. The lowest point of the channel inside a pipe, conduit, canal, or manhole. This term is used by some contractors, however, the preferred term for this usage is invert.
What is the Obvert of a pipe?
Obvert Eng The highest portion of the internal surface of a culvert or arch at a given cross-section. Also known as the SOFFIT.
What is GRP pipe?
Glass fiber reinforced plastics (GRP) are a composite material made of a polymer matrix reinforced with fibers. Fibrex IntegraLine of GRP pipes is designed for corrosion resistance, weather resistance, visual inspection friendliness, and durability.
How is RCP installed?
Installing RCP Typically, the spigot end of the new pipe is inserted into the bell of the pipe at the end of the installed pipeline, then the new section is pushed into place with a crowbar, pipe pullers, or other means. Some RCP must have its bell gasket stretched, using a rounding device.
What’s concrete pipe called?
Reinforced concrete pipe, or RCP, is one of the standard materials used in storm sewer systems, sanitation systems, and large irrigation projects.