The package Bhoj to Morbe Section is a part of the Delhi–Mumbai Expressway – 1,350 km long, 8-lane wide under-construction access-controlled expressway connecting India’s national capital New Delhi with its financial capital Mumbai. The 1,380 km long Delhi Mumbai Expressway is expected to halve the commute time between Delhi and Mumbai from nearly 24 hours to 12 hours and shorten the distance by 130 km.
Engineering Analytics
The project comprises 4.160 Long Twin Tube Tunnel with 8 Lane access, the tunnel will be constructed using NATM (New Austrian Tunnelling Method) also known as the sequential excavation method (SEM) or sprayed concrete lining method.
The NATM integrates the principles of the behaviour of rock masses under load and monitoring the performance of underground construction during construction. The NATM has often been referred to as a “design as you go” approach, by providing an optimized support based on observed ground conditions.
Complex Engineering
The scope of work involved the design, construction, testing, commissioning, which includes tunnelling, execution of the pavement-beds, significant elements of the mechanical and electrical works and the construction.
Digital modelling, the development of specialist equipment (improving delivery and safety through reduced manual handling), and a detailed live asset monitoring programme will give all stakeholders certainty in the delivery
Unprecedented logistical Challenges
Construction of two opening sections is extremely intricate in its designs. So too was the logistical operation to facilitate the build. Our logistics team successfully manages a highly complex operation involving road deliveries, explosives management, construction sequence strategy, handling and distribution and site labour.
Not only incredible in scale but also extremely intricate in its design. So too was the logistical operation to facilitate the execution. The site being in mountainous terrain, our logistics team successfully manages a highly complex operation involving heavy equipment, geological surveying, soil investigation and execution.