[TowerTalk] Looking for some foundation advice
Al Kozakiewicz
akozak at hourglass.com
Wed May 27 19:06:04 EDT 2020
Why do you think it is a problem that needs solving? Concrete is heavier than water and displaces it. Concrete cures by hydrating, not drying.
Contractors deal with water in excavations all the time without issues. Typically they would either pump the excavation out before pouring or provide for a way for the displaced water to escape via gravity.
In any event you should not be modifying the foundation specs without consulting an engineer.
Al
AB2ZY
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Don Solberg
Sent: Wednesday, May 27, 2020 6:45 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Looking for some foundation advice
I was planning on purchasing a used US Tower HDX-572, 72 ft crank up
tower. It looks like I may have run into a problem with the foundation. I
had some trenching done today for a new well and discovered that the ground
water level is just slightly lower than 6ft. US Tower specifications call
from a 7.5 foot deep hole. My soil is mostly sand, so in addition to not
being able to go down 7.5 ft, I probably also want to make the foundation
wider.
Is it practical to put up the 72ft tower with a wider pad, or should I look
at getting a smaller 55ft tower? Another alternative is find another
location for the tower. I have about a 10 ft hill on another property that
I own across a gravel road. This would most likely eliminate the ground
water problem but I would have about a 300 ft cable run and I would have to
trench across the town's gravel road.
I am looking for recommendations.
73,
Don K9AQ
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