Shallow Braced (non-drilled, hand augered or pounded) Monument Overview |
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Shallow Braced (non-drilled,hand augered) Monument
The shallow braced (non-drilled, hand augured or pounnded) monument consists of 4-5 1"-diameter stainless steel legs in a tripod configuration pounded into the substrate up to depths of about 5-6 feet. The legs are welded together at the top. The short braced monument is nearly identical to the shallow drilled braced monument, with the exception that the legs are either pounded into unconsolidated ground or a hand auger is used to create the holes for the legs. Rather than epoxied into holes drilled in bedrock. Use the SBM (Short Braced Monument) at locations where there is no bedrock available. l Pros
Cons
Design and ConstructionA heavy duty hammer drill with a special chuck is required for installation. DocumentsInstallation PhotosEd Arnitz of UNAVCO drives the central rod into the ground with a Hilti drill. The rods can also be pounded into the ground with a sledgehammer. You first need to make the ends pointed. Victor Gonzales (OVSICORI) using the hand auger to dig out the holes for the legs.
Approximate Cost$800 This cost is for the monumentation only; the antenna mount (e.g. SCIGN mount) is not included. Materials
The materials specific to construction of the SBM are available as a kit which can be purchased from:
Tools
Mount Commonly UsedThe SCIGN mount is the antenna mount most commonly used with the shallow braced monument, although it is only required when using the SCIGN radome. Otherwise, any other leveling mount, such as the SECO 2072-series antenna mount, is acceptable. Other LinksSend questions or comments to Support (supportunavco.org). |
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Posted by: Beth Bartel - April 9, 2014. This article has been viewed 968 times. | ||||||||||||||||
Online URL: https://kb.unavco.org/article/shallow-braced-non-drilled-hand-augered-or-pounded-monument-overview-323.html |
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