Stormwater pits and irrigation schemes absorb all of the water accumulated during periods of intense rainfall and channel it away from your land and the highway. A stormwater pit concrete serves as a water collecting pit or stormwater holding container that contains all runoff before it draining away by attached drainage pipes. During a rainstorm, stormwater is the water that flows down our buildings, driveways, and other big surfaces.
If it is not contained and redirected, it will accumulate to an immense volume of water capable of causing significant harm. Stormwater pits and irrigation schemes capture and transport this water away from your land and roadway.
Both parties must adhere to safety standards and legislation during delivery, handling, storage, and implementation, including wearing appropriate personal safety of stormwater pit concrete. The primary contractor or installation contractor must create a Protected Work Method Statement; we request that this declaration adheres to all applicable rules of conduct, guidelines, and protection regulations.
Before delivery, especially for custom-made pits, a pre-installation site meeting with the manufacturer will be held to finalize shipping schedules, including the sequence of deliveries and the order of unloading and installing the unit. The shipping strategy would reduce double-handling, save time and effort, optimize crane utilization, and reduce site congestion.
To ensure secure storage, all precast units have cast-in-raising anchors. Both units must be operated using the cast-in lifting anchors and related lifting clutches to avoid friction and potential concrete cracking. To prevent chipping, a spreader beam is advised for rising. The contractor is responsible for ensuring that the correct spreader beam is used.
After the pits and pipes are laid and sealed, backfilling is possible as per approved drawings. Backfilling the stormwater pit concrete with the same content as backfilling the pipeline is needed. Distribute and compact the substance evenly, meaning that no parts or joints are moved.
Usually, stormwater pit concrete is installed as follows:
- Ascertain that neither the base nor the bedding content has been disturbed. Prepare the stormwater pit for use in the lifting operation.
- Swiftlif grasps. When unloading and lowering the bits, take caution not to collide them. Always be mindful of pinch risks and avoid walking or working with suspended loads.
- Elevate the stormwater pit into position. Bring the pit into contact with the downstream shaft. Lift the pipe marginally to allow the joint to be made until the pipe base makes contact with the bedding. The pipe should terminate slightly short of the benching within the foundation. Ascertain that sufficient clearance exists under the pipe to provide for sealant application.
- Each degree must be accurate. Check the pit’s depth with a spirit level; position it on top of the wall. Additionally, verify that the downstream and upstream invert levels are sufficient.
For modular pits with knockout parts, note the pipe’s size and placement on the pit wall’s thin knockout portion. Break the pit wall steadily and softly with the appropriate instrument. Create the initial crack in the knockout centre with a tiny sledgehammer. Strike the wall with a small ball-peen hammer or equivalent tool in a circular fashion to create the appropriate hole beyond the pipe diameter.