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The wall face is often of precast, segmental blocks, panels or geocells that can tolerate some differential movement. The walls are infilled with granular soil, with or without reinforcement, while retaining the backfill soil. Reinforced walls utilize horizontal layers typically of geogrids. The reinforced soil mass, along with the facing ...
LECA used in structural backfill against foundations, retaining walls, bridge abutments etc., in addition, it can reduce earth pressure by 75% compared with conventional materials, and also increases ground stability while reducing settlement and land deformation. LECA can drain the surface water and groundwater to control groundwater pressure.
The second type is in the form of drainage panels, the rigid polymer core being nubbed, columned, dimpled or a three-dimensional net. With a geotextile on one side it makes an effective drain on the backfilled side of retaining walls, basement walls and plaza decks. The cores are sometimes vacuum formed dimples or stiff 3-D meshes.
Most state transportation agencies have used flowable fill mainly as a trench backfill for storm drainage and utility lines on street and highway projects. Flowable fill has also been used to backfill abutments and retaining walls , fill abandoned pipelines and utility vaults , cavities , and settled areas, and help to convert abandoned bridges ...
A basement wall is thus one kind of retaining wall; however, the term usually refers to a cantilever retaining wall, which is a freestanding structure without lateral support at its top. [2] These are cantilevered from a footing and rise above the grade on one side to retain a higher level grade on the opposite side.
Usually retaining walls are constructed of reinforced concrete, if an impermeable surface is not desired, it would be a sensible solution to create a filling area (but not for dam constructions). Choosing the ground reinforced with geogrid reinforcements instead of reinforced concrete retaining wall will also contribute to the ecological balance.
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