Basement Wall - Adjacent Construction - Urban Area - Concrete Wall Deflection Measurements
Basement Wall - Adjacent Construction - Urban Area - Concrete Wall Deflection Measurements
(OP)
Hello all. I have a question about obtaining vertical and horizontal movement on an existing basement wall (2 stories underground). A new building will be constructed about 15' away from this existing building. The new building will have 3 stories underground and the excavation will be below the basement walls (2 stories underground) and the footings for the existing building. Another consultant has determined the excavation from the existing building should start about 6 feet from the top of the existing basement footing and extend at a 1:1 slope down to the proposed footing bottom of the new building.
My question is: what would be the best (most accurate) way to measure the movement of the existing basement wall during construction to help make sure it is not damaged or is not moving because of the adjacent construction. Something wireless with an alarm would be great, but I am just not sure what is out there. I am aware of LVDTs, dial gauges, a good yard stick, straight edge, inclinometers, etc. We will also have a surveyor shoot a couple points around the building periodically. I want to be able to measure the vertical and horizontal movements in the wall with real-time data.
Any advice would be appreciated. Thanks everyone!
My question is: what would be the best (most accurate) way to measure the movement of the existing basement wall during construction to help make sure it is not damaged or is not moving because of the adjacent construction. Something wireless with an alarm would be great, but I am just not sure what is out there. I am aware of LVDTs, dial gauges, a good yard stick, straight edge, inclinometers, etc. We will also have a surveyor shoot a couple points around the building periodically. I want to be able to measure the vertical and horizontal movements in the wall with real-time data.
Any advice would be appreciated. Thanks everyone!
Jason Vaughn
smeinc.com





RE: Basement Wall - Adjacent Construction - Urban Area - Concrete Wall Deflection Measurements
www.PeirceEngineering.com
RE: Basement Wall - Adjacent Construction - Urban Area - Concrete Wall Deflection Measurements
If you are lucky, you have one of the larger geotechnical companies nearby with lots of instrumentation experience. Give them a call.
Or if you want to keep the work inhouse, give Slope Inclinometer a call. They can help out as well.
Mike Lambert
RE: Basement Wall - Adjacent Construction - Urban Area - Concrete Wall Deflection Measurements
Instrumentation can be expensive, but a hell of a lot cheaper than litigation.
RE: Basement Wall - Adjacent Construction - Urban Area - Concrete Wall Deflection Measurements