Click on the topics below to view more information on the best practices for Allan Block segmental retaining wall design for residental and commercial applications.
Design Guidelines Item: The term, "owner" refers to the property owner or their designated representative.
2.1 Contractors must inspect all materials upon delivery to the site to assure proper material has been received. Contractor must protect all materials from damage or contamination prior to use within the wall (ASTM C1372). Utilize Allan Block Product Standards in the Allan Block Spec Book.
2.2 Allowable soil to be used below the wall structure face.
2.3 Allowable soil to be used in the reinforced mass.
|Sieve Size||Percent Passing|
|No. 4 (4.75 mm)||100-20|
|No. 40 (0.425 mm)||0-60|
|No. 200 (0.075 mm)||0-35|
2.4 Wall rock column size and material used.
2.5 Soil parameter verification.
2.6 Wall embedment depth should be determined by the wall design engineer based on typical industry standard and specific site requirements.
2.7 Base trench verification and compaction requirements.
2.8 Imported base material, size of base, compaction requirements of base and location of the base course unit on the base material.
2.9 Minimum grid lengths.
2.10 Typical location of initial layer of grid.
2.11 Maximum suggested grid spacing.
2.12 For walls using the manufacturer’s optional capping system or approved equal: