If you are talking about plaster and are plastering the spa only then ususally the cost is a flat cost to have done estimated $1000-1400
You are going to have to tear some of it up to put the pool in. the rest would depend on the strength of the concrete you have on the ground. If it is reasonably strong you could cover it with something like 20mm ply to protect it from the machinery operating on it during the building and hope for the best.
The Anasazi
Flat-lining is sewing your the lining and shell pieces of your project (wrong sides together) before you assemble. You then treat the flat lined piece as one; flat lining allows for a heavier weight to the material which can aid construction. Your question doesn't state whether this is part of the pattern instructions, but I am assuming it calls for flat-lining prior to assembling any of the pieces.
an impervious layer is provided at the bed and sides of canal to improve the life and discharge capacity of canal known as canal lining.The canal lining is something that provides a barrier to the surface of a canal on the bed and sides that improves the canal. It is a man made layer that helps make the canal last longer and improves the waterflow.
The Ancestral Puebloans, also known as the Anasazi, built adobe-style homes into the sides of cliffs in the southwestern United States, particularly in regions such as Mesa Verde in Colorado and Chaco Canyon in New Mexico. These dwellings are known as cliff dwellings and were built between approximately 1200 and 1300 AD.
a leeve
YES
Probabily the ground surrounding your pool if its in-ground. In an above-ground pool they most likely fly into the pool or crawl into it from the sides.
It was decided to that Swansea FC needed a ground that was up to the national FA requirements. The Regional Rugby team - The Osprays also needed facilities as they were using the St Helens Ground in Swansea. The Liberty was built to facilitate the two sides and provide a larger stadium just off the M4 Motor Way
I suggest searching for the answer on eHow.com.
Cement, or more accurately, concrete, is formed by creating rigid wood sides which outline the required shape the finished concrete will reveal. Forming is the creation of temporary walls or supports that will hold the liquid concrete until it sets.
Nobody built the Grand Canyon--it formed naturally because the Colorado River eroded the sides of the canyon off.