I've created a comprehensive Engineering Variables Request Document for the JR Muller Unit 14 stormwater pipe project. The document is available at: **https://ugygslvc.gensparkspace.com/**
Key Findings and Analysis
Available Information from JR Muller Document:
- Pipe Specifications: 1200ND Structured Wall HDPE Pipe with welded joints
- Layout: Slope ±1:43 (to be confirmed)
- Elevations: Various levels including IL 1499.6, IL 1499.8, outlet at 1495.76
- Materials: HDPE, concrete (25 MPa), uPVC components
- Standards: SANS 1200 series (DB-1989, LE-1982, LB-1983)
Applied Design Principles from Inkulu Document:
- Material Standards: SANS ISO 4427, BS EN 1295-1
- Design Life: 100-year service life approach
- Structural Analysis: Marston-Spangler methodology
- Installation Standards: EN 1610 & ENV 1046
Critical Information Gaps Identified:
🔴 HIGH PRIORITY GAPS:
- Geotechnical Data
- Soil classification and bearing capacity
- Groundwater levels and seasonal variations
- Native soil modulus (Inkulu used 7 MPa as reference)
- Hydraulic Design Parameters