Piling can be used to solve a number of problems in construction projects. There are several different forms of piling which each have their own advantages. If for a number of different factors you cannot use a conventional method of piling then speciality piling methods can be used. The following information can help you find out more about speciality piling methods.

Minipiling, as the name implies is a piling solution which can be used when space is limited. Minipiles can be used in areas with low headroom or other restrictive features and for other jobs that normal piling methods are not suited to.

Minipiles can be adapted to suit the job required. Minipiling techniques usually involve hydraulic pressure or percussive and rotary methods. Minipilies can be placed using drill attachments, impact driving, jacking, vibrators or screwing machines.

Tripods have been used successfully for piling for some time. Although tripod rig piling methods may not be as cost effective as others it has several distinct advantages that can benefit different working environments.

Tripod piling stands out form other piling methods as the bore is formed using a percussive implement. Using the percussive drill, bores can be put into earth of any condition as the bore passes easily through any obstacles. As the boring is being carried out the tunnel is lined with steel casings to help maintain the shape. The casings are linked together and act as a temporary cage, keeping out loose earth and moisture.

Once the bore has reached a certain depth the casings are no longer required. When the bore is deep enough a permanent reinforcement cage is added. Concrete is poured into the pile at the same time as the temporary casings are drawn back out. Optionally the temporary casings can be left in place if required.

Tripod piling can be used in a variety of environments. The equipment used is fairly simple meaning that it is easy to transport on site for one pile or many and it is also a cost effective method. Using this method any imperfections in the ground are filled with concrete to further strengthen the steel cage. Tripod piling can be completed in areas with limited work space effectively.

Soldier piles are well suited for areas where there is a low or no risk from the ground moving due to subsidence issues. Soldier piles consist of wide steel sections which are placed two or three metres apart.

As the pile is driven lagging is used to keep the steel sections evenly placed. This lagging is what helps to keep the pile in place which is why a firm soil type is required.

Soldier piles are a little more limited than other solutions as they are only suited to conditions where the ground is dry and firm. Soft clay soils and thin soils which allow sand to drift through are unsuitable for supporting this method of piling.