Installation Guide for HDPE Corrugated pipe part 1

Juli 4, 2020 by admin in Uncategorized

Indtoduction

High density polyethylene (HDPE) and polypropylene (PP) corrugated pipes are available for various applications. These applications include gravity flow storm and sanitary sewer, low head pressure applications and many others that are considered appropriate by design engineers. This pocket mounting guide is intended to provide guidance on specific installation requirements for Shuanglin Pipe plastic pipes used for drainage. Product-specific exceptions to this pocket guide in the areas of acceptable refilling, height of contents, joint connections and other product-specific information can be found by referring to the attachment for additional resources.

Handling and Accepting Work Site

Acceptance Recommendations

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• Driver directly to a smooth and flat area, free of rocks and debris.
• Check the quantity and quality of loading immediately after unloading. Check the pipe carefully for possible damage due to transportation or loading and unloading.
• Record damaged or missing items on the delivery receipt.
• Deficiencies and damaged material are not automatically sent. Please order replacement material.
• Do not throw away damaged items. Check with the driver for the right return method. If the driver is unsure, contact our customer service staff.

Treatment Recommendations

To avoid damage to pipes and equipment, the following handling recommendations must be followed:

• Occupational Safety and Health Administration (OSHA) security requirements for Indonesia are P2K3 requirements.
• Do not drop the pipe.
• Avoid collisions on bell-end or spigot.
• For sizes 18 “(450mm) and smaller pipes can be lifted by hand. Larger pipes require backhoes or heavy conveyances with nylon slings. To lift 36” (900mm) and larger diameter pipes with slings at two points, about 10 feet (3 m) apart. Smaller diameters can use a single point of lift. See Table 1 for the handling method as recommended below.
• Field workers are needed to unload pallets

Pipe Storage Area

Recommended Pipe Storage Area

To ensure that the pipe product that you send does not become damaged during storage on a job site, follow these simple guidelines:

• Non-pallet pipes can be piled temporarily in a clean, flat area.
• Use safety wood (or blocks) to ensure the pile does not collapse.
• Failure to block the pipe can cause a pile to collapse, pipe damage, or personal injury

The arrangement of the pipe stack is no higher than about (1.8m) While supporting the pipe length evenly, arrange the ends of the pipe sockets alternately for each row of pipes To prevent damage to the socket or spigot when moving parts of the pipe, do not drag or drag the end of the pipe to any object.

Trench or Sewer Construction

• Information provided in this pocket installation guide intended as a quick reference only and does not replace the requirements specified in the project plan.
• Trenches or gutters should be wide enough to be placed and weigh the refill around the entire pipe.
• In table 2 for recommended minimum trench width. Design engineers can modify the width of the trench based on site-specific conditions.

• For parallel pipe installations, provide spacing between pipes for proper compaction. See figure 1 for minimum pipe spacing. *Placement will be different for a retention / detention system because of the intended use of this product.
• Basic trenches or trenches containing bedrock, dirt or soft debris, or other materials which can not provide support for long-term pipeline, arrangements can not be recommended.
• All unsuitable foundations must be dug before the pipe installation take place.
• If the base of trench in unstable, contractor must dig to depth required by the engineer and replace with appropriate material as determined by the engineer.
• If native land can migrate to the pile, use synthetic cloth (geotextile) to separate the original land from the heap.

Trench Boxes/Sewers

Trench boxes provide a safe work area for installing pipes in deep trenches or on land where stability is inadequate. Always follow the OSHA (Occupational Safety and Health Administration) requirements for Indonesia are P2K3 requirements when using a trench box.

The length of the trench box must be suitable for the length of the pipe. The nominal length for the pipe is 6.1 m (20 feet) although shorter lengths can be provided.

The most effective way to maintain a sound system is to provide ‘subparits’ for pipe and refill use. The subparit must not be more than 24 “above the bottom of the trench as shown in Figure 2. Refill and compact in accordance with the design specifications in the subparit.

The trench box can be pulled along the upper edge of the subtrench without affecting the embankment in the pipe planting zone.

In installations not involving a subtrench, dragging a trench box should only be done if it does not damage the pipe or disrupt the backfill; otherwise, the box should be lifted vertically into its new position, again taking great care not to disturb the pipe or backfill.

Bell & Spigot Joint Assembly

For pipe with a bell-and-spigot connection, it is imperative that the joint be assembled properly to ensure that the product performs to expectations. The steps that must be followed to obtain a quality joint are provided below. Failure to follow these instructions may cause the joint quality to be severely compromised.

• Lower pipe into trench by hand, or use nylon straps and excavating equipment.
• Begin by inspecting the bell and remove any foreign matter.
• Use a clean rag or brush to lubricate bell of pipe lubricant.
• Clean spigot end of pipe.
• Remove protective wrap from gasket.
• Using clean rag or brush, lubricate exposed gasket with pipe lubricant.
• Do not allow lubricated section to touch dirt or backfill.
• Foreign matter could adhere to surface and compromise joint integrity.
• Place spigot into bell and align.

Note: It is recommended that one always lay pipe starting at the down stream end, pushing spigots into bells with the bells facing upstream. Always push spigot ends into bell, not bell end into spigot.

Assemble the connection using one of the following methods. (For smaller diameters, pipes can be connected manually.

• For all methods, make sure the bell and faucet are properly “installed” for proper installation and seal tight seals. If there are no porchmarks, measure the depth of the bell and use crayons or other materials to place the marking mark on the crease of the appropriate tip. Care must be taken not to cross the pipe during assembly.
• Installation stubs, mentioned in the assembly instructions, can be purchased or made following the information on page 15.
• Some high-performance connection applications may require that the connection be installed in place for a short time, immediately after installation, to properly adjust the packaging.

end of part one