spec for "clay dam" or other groundwater stop in trench
spec for "clay dam" or other groundwater stop in trench
(OP)
I'm designing sewer and drain pipe trenching and know there are wetlands and/or seawater nearby and the trenches will be in groundwater. I'm aware that "clay dams" have been used to prevent transportation of groundwater in trenches. I've also heard I won't be able to obtain clay. I'm looking for specifications and/or drawing details of a way to stop the flow of groundwater in a trench that will contain crushed stone up to 1 foot above the pipe. The soils in this area are also sandy and readily allow groundwater flow. Thanks.





RE: spec for "clay dam" or other groundwater stop in trench
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RE: spec for "clay dam" or other groundwater stop in trench
RE: spec for "clay dam" or other groundwater stop in trench
Wellpoints are often though to be limited to use when they can surround the excavation. However they work quite nicely when installed on one side of, and parallel to a "linear" excavation, such as a pipe trench - they don't even have to be too close; placement 10' or more from the trench is typical.
www.SlideRuleEra.net
RE: spec for "clay dam" or other groundwater stop in trench
RE: spec for "clay dam" or other groundwater stop in trench
RE: spec for "clay dam" or other groundwater stop in trench