Experiments, trials, and new trains of thought were explored for this.
The request was for a peace pole for the bottom of the ocean that would be rooted in the bottom like a peace pole is on land.
This page was made to enable the customer to share progress with others on his team as he kept telling me that money was no object in order to encourage me to keep working.
He asked for a stainless steel peace pole that could be set in the floor of the ocean 30 to 40 feet underwater. Part of the problem would be getting it there. I designed a stainless steel post to set in a pad of cement that is 3 feet by 3 feet and varying in thickness according to the thickness of the cement bags placed on it. 9 inches of the post would protrude through the bottom of the pad and into the sea floor to anchor it in place.
The diagram below is of an earlier stage in the development when the idea was to create a wooden form around the rebar into which to pour cement. More practical thinking eliminated all the wood and the pouring of cement and replaced it with paper sacks of cement set on a rebar grid.
Delivery to the ocean floor In calm water, like a marina, the post with the rebar platform and post (all fabricated by me and shipped as a unit ready-to-go) is set on a floating, very large inner tube, or a collection of small ones. Several small inner tubes are attached to the top of the pole.
It is towed to the drop site at sea. Then the large inner tube underneath is deflated. Once the pole is being held upright and just below the surface by the upper inner tubes, unopened paper sacks of cement are laid on the horizontal stainless framework that now is underwater. Standard practice when building bridges is putting unopened sacks of cement underwater where they absorb moisture and set. The framework is covered with as many sacks of cement as necessary.
All but one of the upper inner tubes now are punctured allowing it to sink. The last one makes it land upright on the bottom. A long rope with a slip knot could release it when pulled from the boat, if anyone cared to release it. It might be possible to lower the whole thing slowly with a rope to make sure that it doesn't hit bottom with enough force to cause cement sacks to dislodge.
The post at first probably will sit on the bottom at an angle. Eventually the motion of the sea will set it in the bottom like an anchor.
Instead of inner tubes under it it, it possibly could be towed between between two Zodiacs.
The request had been for a stainless steel peace pole set in the bottom. But wasn't the actual goal to procure a peace pole that it would make sense to put underwater? The decision to use stainless steel might not have been the best one. Making a peace pole out of stainless steel regards the water as an obstacle. I began wondering if it wouldn't be possible to create a peace pole designed to make being underwater an advantage. So I created one that is buoyant. The peace pole at right is fiberglass wrapped around Styrofoam. To keep it from floating away, it is chained to an anchor. To make it possible to read the message, a scrub brush could be hung on a cable for anyone swimming by who wants to see what it says under the algae. The problem is that if too many years passed without anyone's scrubbing off the growth, it could become too heavy to be buoyant and sink. I made other revisions. Thin copper wrapped around the pole would prevent growth covering it, but there are some environmental concerns with that. So I designed it with only the text made of copper.
The project was in development for a while, with different thoughts about how to accomplish it. Material tests were done underwater and experiments to see if copper letters inhibit biological growth in a radius large enough for the text to remain visible. I explored the idea of treating the ocean as a kiln and developing poles that took advantage of the wabi sabi effects on various materials kept under water over a period of time, in part to see if that might not be an interesting way to develop peace pole that would be brought back to the surface and used on land. Page after page, like this page, were posted online so that the customer could share the progress with others on his team. In the end he put his wife on the phone who scoffed at the price. Now I take deposits.