Introduce the construction design scheme for HDPE double-wall corrugated pipes.

Release time:

2022-08-09

HDPE double-wall corrugated pipe is a new type of lightweight pipe made from polyethylene. Are you familiar with its characteristics? The manufacturer of HDPE double-wall corrugated pipes provides detailed information: On the one hand, it features a smooth inner surface that exerts minimal resistance to fluid flow; on the other hand, it is lightweight, allows for longer pipe sections (with fewer joints), and is easy to install and assemble.

HDPE double-wall corrugated pipe is a new type of lightweight pipe made from polyethylene. Are you familiar with its characteristics? The manufacturer of HDPE double-wall corrugated pipes provides a detailed introduction: On the one hand, it features a smooth inner surface that exerts minimal resistance to fluid flow; on the other hand, it is lightweight, has longer pipe sections (requiring fewer joints), and is easy to install and connect. It also places low demands on trench excavation and foundation work. Here’s an overview of the construction design for HDPE double-wall corrugated pipes.

Introduce the construction design scheme for HDPE double-wall corrugated pipes.

　　Understand the design drawings and raw materials, establish the pipeline layout for main and riser pipes, as well as the process flow and construction/installation specifications.

　　Based on the pipeline plan and current reference points, taking into account the actual landforms, conduct thorough statistical analysis of the assessment data and prepare the assessment manuscript.

　　After entering the site, precisely re-measure the reference points and crossing-over points provided by the construction company. Once the closure error meets the design requirements, proceed with data encryption for both the analyzed XML points and the reference points. A measurement point shall be set every 60 meters, and all data encryption points must be securely locked and adjusted to ensure their accuracy, thereby achieving the design elevation and alignment control precision required for the drainage pipeline. Since pipeline axis stakes will be excavated during construction, the construction control stakes and axis orientation control stakes should be accurately measured and installed in locations that are free from construction impacts, conducive to precise measurement, and easy to maintain. For structural component control stakes, use either the cross-method or the straight-line method.

　　During the construction process, precise measurements typically involve clearly determining the elevation of the tank bottom. After excavating the equipment foundation pit, follow-up precise measurements are conducted continuously as the excavation progresses, thereby preventing over-excavation and ensuring that the tank bottom elevation meets the design specifications. Any issues encountered should be addressed promptly to keep the pipe bottom elevation within the allowable deviation range. Before starting daily measurement work, a nearby leveling check measurement must be performed first.

　　The core of the pipeline is clearly defined by axis control stakes, and the boundary lines are used to create openings in the pipeline foundation based on these control stakes, thereby precisely identifying the pipeline installation locations.

　　The design elevation of the valve pit shall be controlled according to the design specifications. After the pipeline laying is completed, a final inspection and precise measurement of the pipe top and surrounding structures shall be carried out. The excavated earth from the trench shall be immediately loaded and transported away, with the transport destination specified by the customer.

　　When excavating the foundation pit for the canal and encountering surface water, set up drainage ditches and collection wells. Immediately drain and dry the groundwater within the canal, and adopt foundation reinforcement measures such as laying a layer of river pebbles or gravel (with a thickness of no less than 100 mm). In the absence of surface water, compact the subgrade soil in the plain area below the roadbed to achieve a compaction degree exceeding 0.95. If the subgrade lacks sufficient bearing capacity due to the presence of sludge or collapsible loess, replace the deficient soil according to pipeline construction requirements, using a mix ratio of desert sand and soil with a replacement thickness of 30 cm.

　　After excavating a 100-meter-long trench, the excavated soil is transported away and backfilled. Once the trench has been manually cleaned and approved by the engineer, the next stage of construction work can begin within the trench.

　　That concludes our explanation of corrugated pipes. If you’re interested in purchasing or customizing double-wall corrugated pipes, feel free to contact our company.

Jiangsu Yaxing

Address: Qingdun Industrial Park, Hai'an City, Jiangsu Province

Phone: 86-513-88483622 ，86-513-88480666,

86-513-88480999

Fax: 86-513-88482423

Email: yx@ntyxbwg.com