Install a 6000l capacity fibreglass slurry tank. The maximum depth of the excavation will be 5m and the side will be supported by temporary sheet wall piles with hydraulic frames. The tank will have a concrete base and a concrete surround. Back fill with existing material.
Laying 900mm diameter concrete drainage pipe.
Erect 2 storey scaffoldding to a semi detached house.
Offload portable cabins using a lorry with hiab.