п»їJACK HEAP UNDERPINNING
This method can be used when the interesting depth of suited bearing ability subsoil is actually deep for making traditional maintaining uneconomic. Plug pile maintaining is calm, vibration totally free and flexible because the pile depth can be adjusted to fit subsoil circumstances encountered. The current foundations must be in a good shape since they will have to span in the heads with the pile caps which are ensemble onto the jack heap heads following your hydraulic ports have been eliminated
NEEDLE AND PILE MAINTAINING
This technique of maintaining can be used where condition of the current foundation can be unsuitable pertaining to traditional or jack pile underpinning tactics. The brickwork above the existing foundation has to be in a appear condition since this method relies on the `arching effect' of the brick developing to transfer the wall membrane loads onto the fine needles and in the end to the piles. The hemorrhoids used with this process are usually tiny diameter fed up piles
This method stabilises existing wall foundations either internally or externally whichever the best. Two mini-piles are installed, one compression and one stress. A pocket sized is damaged out into the existing wall membrane and a reinforced concrete floor beam is usually cast linking the two piles.
This system is used exactly where traditional underpinning is not really appropriate as a result of existing foundations being deep, or that good-bearing strata is so profound that it is uneconomical to get. (Depths higher than 1 . 5m). Or needle beams may not be used due to access constraints.
Reducing the span between cantilevers can easily accommodate large loads. Nevertheless , the bearing capacity with the underlying strata will decide the number, diameter and spacing of piles used.
Advantages of this system will be:
Faster than traditional maintaining.
Gain access to from one side only. Residents can stay in the property during construction....