How to install PE pressure systems
The stress and deformation calculation
Soil loads and traffic loads give rise to pipe cross-section tensile and compressive stresses. The extent of the stress is influenced by the elasticity of the pipe. In general, increasing the elasticity of the pipe will reduce tension. The testing for stress is therefore to be conducted while considering all inner and outer influential factors (e.g. soil stress, traffic load, water, ground water, chemical resistance internal over or under pressure).The manner of embedding in the ground is particularly responsible for degrees of pipe deformation. The higher the compression ratio of the surrounding ground, the smaller the deformation. The requirement of locating the pipe zone in compactable soil is derived from this observation. The acceptable vertical deformation of a PE pipe is currently 6% and is based on the average pipe diameter. Stress and deformation calculations are always performed in parallel.
Details and instructions for the calculation and the installation of the pipe systems are provided here.
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