Materials and standards (w2155.doc) Performance requirements, access & hydraulic design
(w2156.doc) Structural design & depth of cover table (w2157.doc) Construction 1 - Excavation and preparation of trench
(w2158.doc) Construction 2 - Laying pipes (w2159.doc)Construction 3 - Laying pipes in special circumstances (w2160.doc) Construction 4 - Inspection, testing, operations & maintenance (w2161.doc) Appendix A – Determining the bedding construction of vitrified clay pipelines
(w2162.doc)
Appendix B - Determining the flow capacity of vitrified clay pipelines (w2163.doc)
Appendix C – General guidance on chemical resistance of vitrified clay pipes (w2164.doc) Appendix D – Cost comparisons and cost saving considerations
(w2165.doc) Table A3 – Wide trench fill loads (w2166.doc) Table A4 – Narrow trench fill loads (w2167.doc) Table A5– Traffic loads – "Fields and Gardens" – 2 wheels 30 kN (w2168.doc) Table A6 – Traffic loads – "Main Roads"- 8 wheels 112.5 kN (w2168a.doc)
Table B3 – Flow table – Foul drains & sewers flowing at a proportional depth of 0.75 - ks values varied with velocity (w2174.doc) |