This photo is of a cast iron situ lined pipe in very poor condition. It is a 300mm CISL lead jointed water main that had predominantly carried potable bore water. It was installed in 1938 and replaced in 2008 (70 years)
Failure was due to graphitic corrosion from the aggressive soil environment along the base the main resulting in a longitudinal split in the weakened area.
The photo has been released to the public domain by its creator (Bruce Goodall), so please feel free to reuse it in any way you wish.