Hume T-Wall   Hume T-Wall System Hume T-Wall System is developed by combining the advantages of precast technology and structurally efficient Double - Tee section to provide a viable solution for high vertical retaining situation. The system consists of precast wall panels, integrally supported by an in situ or a semi-in situ base for stability and strength to withstand lateral earth forces and imposed loads. Applications Soil Slope Protection for : Earthwork platforms Roadwork embankments and approaches to interchanges / bridges Banks for drainage / irrigation channels Design Considerations Reinforced concrete design to BS 8110 : The Structural Use of Concrete Standard units are designed to the following loading requirements :    Type la loading Backfill height not exceeding 600mm with 30¢Xslope (Figure 1)    Type lb loading Backfill surcharge of 10kPa (Figure 2)    Type ll loading Backfill surcharge of 20kPa (Figure 3) Hydrostatic pressure is eliminated by the design provision of weep holes and an external drainage system along the base on the earth side of the erected wall Design can also be customized to suit special loading requirements Characteristic concrete strength at 28days - Grade40 Concrete cover to reinforcement - 30mm Backfill material : Sand or other suitable soil material subject to Engineer's approval and shall have the following characteristic : Adequate protrusion of anchorage bars is allowed for to be embedded into in situ or semi-in situ base slab to secure precast wall panels in place Gaps between T-wall panels are sealed by gluing strips of suitable geotextile filter material along the gaps on the earth side of the wall to prevent wash out of fines     Geotechnical |Page 1 | Page 2 | Page 3 | Page 4 | Page 5   Top HUME CONCRETE MARKETING SDN BHD (8411-T) Level 2, Bangunan Pan Global, No. 1A, Jalan Tandang, P.O.Box 21, 46700 Petaling Jaya, Selangor. Hot-line: (603) 7785 5282 Tel: (603) 7783 3068 Fax: (603) 7785 1823 E-mail: Adam Hussein (HIMB-PJ)