My drilling contractor wants to backfill the cavity behind 4"x12" timber lagging with lean concrete ("slurry"). He says this is common practice.
I am worried that this material will not be permeable enough and excess hydrostatic pressure could develop. Still, waterproofing is required for the...
We are designing a 26' high retaining wall. We have been required to substantiate the freeboard height and impact load we recommended (5.0', 125 pcf), based on possible future debris flow.
The ascending slope is about 1.5:1.0; the max. depth of sloughing has been postulated at 3.0'. I am...
Doing a shoring design for a 16' deep UST excavation. Design is almost done. Client wants to use steel plate lagging b/w W14x132 soldier piles; I usually rec'd 4" X 12" DFL timber lagging and am a little "fuzzy" on steel plates.
1) Do these plates typically come in standard "nominal"...
