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Posted by Sherman on July 22, 2005, 9:02 pm
Sounds good. I'd like to screw the water hose onto such a bag and
lift it about a foot and then back fill so it settles down about even.
Wonder where one gets such a bag?
Sherman
wrote:
>IF this method is to work on such a large angled piece without cracking you
>will need multiple jacking points and a wooden beam to support the cement
>temporarily wouldn't hurt either.
>
>As an alternative to hydrolic jacks would be to slip a lift bag under
>instead. This is esentially a heavy duty bag you fill with water or
>compressed air and it does the lifting as it inflates. This will distribute
>the load more evenly.
>
>In the end you may have to accept some cracks or dig it up and do it over.
>>I had a smaller section do the same. I dug away a few feet from the side
>>of the sidewalk so I could have access. In 2 sections I dug deep enough to
>>get a small hydraulic jack underneath. (you might need 3 or 4). I jacked
>>the sections up about an inch higher than I wanted and packed the void
>>under the sidewalk with dirt and sand as best I could. When I released the
>>jack it settled back down to almost level over a few days. I backfilled
>>the trench on the side and in a few weeks the grass had covered. I moved 2
>>years later and it was still level.
>>
>>
>>>
>>> There is an L shaped cement sidewalk in front of my house that has
>>> sunk 6 inches in 20 years. It is 18 feet total lenght with the L at 9
>>> feet from the ends. No partitions at all.
>>>
>>> Anyway to lift it?
>>>
>>>
>>
>>
>
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