I own a property with a concrete in-ground swimming pool There is
limited access to the rear of the property, where the pool is located
- perhaps one metre on each side. There is no possibility of using the
neighbours' property to bring in equipment.

I want to find the most economical way of getting rid of the pool. I
do not need to build over the site, and if I change my mind it will be
when I demolish the house - which will give me room to bring in heavy
equipment. I want to end up with a surface that will not sink
excessively and which I can plant a lawn on top of.

The best solution I have found so far would be to use liquid fill with
a bit of topsoil on top. The liquid fill can be pumped in, while I
would have to use wheelbarrows for the topsoil. Liquid fill costs
around A$170 per cubic metre. Sand or gravel are much less - perhaps a
tenth of the cost - but I don't know an easy way to bring them into
the site.

A satisfactory answer would be one which used labor, materials and
equipment available in Melbourne, Australia and provided me with my
lawn instead of the existing swimming pool, and the total cost of
which was less than A$10,000.

Site information:

The pool is an inground concrete model about 5 metres by 10 metres,
average depth perhaps two metres.Access is limited to two side
passages, each about 1 metre wide, with somewhat uneven surfaces. In
each case the path is about 25 metres long and requires a right-angle
turn to reach the pool at the far end. The local soil is sandy and the
water table is high.

How about a wet sand slurry and a concrete pump to pump from the street?

Also Melb...

Ed

What would happen to the slurry? If it's wet enough to pump then
surely it's too wet to provide a solid surface, and would settle as it
dried. I'm not rejecting this as a solution, but I'd like some idea of
the outcome.

When you walk in the ocean, do your feet sink into the sand?

When the water recedes does the sand shrink?

Sand doesn't absorb water, it moves into the spaces around each grain. 

Sand occupies the same space wet or dry... excess water sits on top.
That's why you can walk on the beach. In fact it's firmer when wet.

Then again, I don't know if wet sand can be pumped without
considerable turbulence to maintain the slurry.

Ed