Looking for advice - sandy soil
I am planning a "stream-leading-to-pond" in an area behind a retaining
wall in sloping, very sandy conditions. Like making a stream and pond on a sand dune. My plan is to super saturate the soil with water to make it stay put while I dig out the forms for the top resivour, stream and pond. My biggest concern is the easily shifting soil and was just wondering if anyone has any experience in working with that environment. I guess my question is how to keep the sand from shifting once the basic liner and rock are in place. Rocks? Concrete ? Topsoil ? Lots of vegetation? |
Looking for advice - sandy soil
"TahoeKid" wrote in message ps.com... I am planning a "stream-leading-to-pond" in an area behind a retaining wall in sloping, very sandy conditions. Like making a stream and pond on a sand dune. My plan is to super saturate the soil with water to make it stay put while I dig out the forms for the top resivour, stream and pond. My biggest concern is the easily shifting soil and was just wondering if anyone has any experience in working with that environment. I guess my question is how to keep the sand from shifting once the basic liner and rock are in place. Rocks? Concrete ? Topsoil ? Lots of vegetation? Soil has a natural angle of repose, and will stand at that angle without support. If you want the sides to be steeper than that, then you need some sort of structure. The structure can be concrete block, concrete, treated wood, or railroad ties. Without the structure, everytime you walk near the edge, some of the soil is going to move toward the pond, lowering the edge. |
Looking for advice - sandy soil
On Mon, 30 Jul 2007 23:51:08 CST, TahoeKid wrote:
I guess my question is how to keep the sand from shifting once the basic liner and rock are in place. Rocks? Concrete ? Topsoil ? Lots of vegetation? Retaining wall stones around the perimeter and level out the area? If water doesn't rush over, or get under the sand it isn't likely to move once it has been soaked and settled into place. Regards, Hal |
Looking for advice - sandy soil
first pond dug in sand. lined it with epdm. it collapsed.
second time we used concrete block filled with the sand. is going great after 10 years. Ingrid On Mon, 30 Jul 2007 23:51:08 CST, TahoeKid wrote: I am planning a "stream-leading-to-pond" in an area behind a retaining wall in sloping, very sandy conditions. Like making a stream and pond on a sand dune. My plan is to super saturate the soil with water to make it stay put while I dig out the forms for the top resivour, stream and pond. My biggest concern is the easily shifting soil and was just wondering if anyone has any experience in working with that environment. I guess my question is how to keep the sand from shifting once the basic liner and rock are in place. Rocks? Concrete ? Topsoil ? Lots of vegetation? |
Looking for advice - sandy soil
On Jul 31, 11:37 am, wrote:
first pond dug in sand. lined it with epdm. it collapsed. second time we used concrete block filled with the sand. is going great after 10 years. Ingrid Ok, looks like I got some good info. I'll post back in a few weeks after its all in place. I'm probably going to embed a large number of rocks/stones into the sand to help support the sides of the stream to lessen the soil shift problem. Maybe burying concrete paving stones also, since they have a large surface area and will dissipate weight when walking around it. |
Looking for advice - sandy soil
"TahoeKid" wrote in message ups.com... On Jul 31, 11:37 am, wrote: first pond dug in sand. lined it with epdm. it collapsed. second time we used concrete block filled with the sand. is going great after 10 years. Ingrid Ok, looks like I got some good info. I'll post back in a few weeks after its all in place. I'm probably going to embed a large number of rocks/stones into the sand to help support the sides of the stream to lessen the soil shift problem. Maybe burying concrete paving stones also, since they have a large surface area and will dissipate weight when walking around it. If you've got access to silty or clayey soil in your area, it wouldn't hurt to mix some in with your sandy soil. That will also help firm it up, and will help you to compact it and make it more cohesive, strengthening it. Remove about 50% of the sand and replace it with the clayey soil,and mix well. Alternatively, you can mix in some dense grade aggregate, which should be available from most any construction contractor, or local quarry. Be careful about using stone - make sure that it is rounded. If you plan to line the pond (I assume you are) with plastic, angular rock could end up puncturing your liner. Just a few suggestions. George |
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