Retaining Wall Question
Retaining Wall Question
(OP)
Does anyone know the difference between Cantilever and Lagging Retaining Wall?
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RE: Retaining Wall Question
A cantilevered retaining wall can be constructed in a variety of ways. it may be a gravity cantilevered wall or a nongravity cantilevered wall. The difference is that the gravity cantilevered wall is roughly shaped in cross-section like an upside-down 'T' (sometimes called a semigravity wall). The other type is shaped like an 'I' in cross-section.
Gravity walls (including semigravity walls) are generally cast-in-place concrete.
Nongravity walls may be comprised of continuous or interlocking elements such as sheet piles or secant piles, or they may have discrete vertical elements, such as H-piles, with horizontal panels or planks (lagging) spanning the distance between adjacent vertical elements.
Hope this helps.
Jeff
Jeffrey T. Donville, PE
TTL Associates, Inc.
www.ttlassoc.com
RE: Retaining Wall Question
Lagging refers to the type of wall design. Sheeting can be steel sheet piles which are Z shapes when locked together form a couragated wall, or soldier pile and lagging. This consists of piles driven at some distance apart, typically 8 feet, along a wall line. As the excavation progresses, wood boards,2- 3 " thick 8" wide are inserted betweeen the flanges of the piles, forming a solid wall. Either wall system can be cantilevered anchored or braced.
RE: Retaining Wall Question