Shoring an Excavation in Loose Sand – Sydney

Problem

When it came time for a customer to excavate in loose running sands to construct a cast-in situ manhole, they ran into some problems. Initially, they tried using a slide rail system but had to stop work due to the presence of a crossing service.

That’s when they contacted Shore Hire to provide some expert advice and an innovative solution to their unique problem.

Solution

To solve the problem, we decided to use a combination of 3.6m long aluminium walers with hydraulic struts and trench sheets to create a 4 sided safe working area. The customer used the “dig and push” method to install the system, opting to utilize the drive cap to push in the trench sheets instead of an EMV.

To support the crossing service, we used Shore 400 modular props in conjunction with ratchet straps. One of the key advantages of this solution is that all of the equipment can be easily manhandled if necessary.

The customer was extremely pleased with the ease of use and installation speed of the system and has confirmed that they will be using it over the slide rail system moving forward, as the slide rails have a tendency to lock up at the post connection in loose sands.

Overall, this was a successful solution to a challenging excavation problem, and we were glad to be able to help the customer complete their project.