Characterised by dense forest, a prevalence of wild animals and difficult hydrological conditions, jungle terrain is by no means an easy feat when it comes to constructing pipelines. Construction contractor Punj Lloyd and PNG LNG Project operator ExxonMobil discuss steps that can be taken to ensure a successful pipeline project in the jungle.
Punj Lloyd has constructed several projects in India that traverse difficult jungle terrain. These include the 303 km East West Pipeline, the approximately 1,000 km Dabhol to Bangalore Pipeline and the 25 km pipeline from Mangalore to Bangalore, which traversed through difficult jungle terrain.
“The Bhivpuri Ghat section of the East West Pipeline, located in the State of Maharashtra, India, consists of jungle terrain. This pipeline was laid in the dense forests in 2009 at a steep slope ranging from 45–80°,” says the Punj Lloyd Pipeline Team.
“Pipelay for the Dabhol to Bangalore Pipeline was through the forests of the Western Ghats in Maharashtra. The Mangalore to Bangalore Pipeline was also laid in the dense forests of Karnataka, which contained vulnerable species.”
In its experience with jungle terrain, the Punj Lloyd Pipeline Team faces a great challenge in preserving as many trees as possible, which can result in a severely restricted right-of-way (RoW) and a difficult construction spread. Other challenges include climatic challenges, such as heavy rains, the presence of wild animals in forested areas, and the general protection of rare flora and fauna.