Detailed Engineering and Upgradation of Road From Two to Four Lanes in Mountainous Range
ters. The company saved four to six months by
using MX line mode.
consisting of various geological treatments coupled with 3D analysis made the designed project
Louis Berger Group, Inc.
A mountainous, 130-kilometer, two-lane
highway connecting Kashmir to the rest of India is
to be widened at an estimated cost of $545 million. The existing highway passes through steep
terrains and complex geological conditions. Rock
nets, gabion walls, stone masonry walls, rock bolting, and various other techniques will address the
threat of the unstable strata. The design includes
about 2000 curves and the longest roadway tunnel in India.
The firm used MX for a complete 3D model of the
proposed road, which gave the true picture of the
proposed design. Interface details are created
exactly as per the design treatment of unstable
excavated slopes and landslide treatment. The
geological design treatments such as rock netting
and gabion walls are also modeled. An interface
The use of line mode commands in MX gave Louis
Berger Group flexibility in dealing with the
redesign. Change in alignment often leads to lot
of rework and recalculation, particularly when the
average number of curves per kilometer is more
than 20 and the length of the road is 130 kilome-
Martens en Van Oord Groep b.v.
This project involves the construction of highway
A35 and the deepening of a key canal. The highway, which will connect the northern Netherlands
and Germany, will shorten travel time and reduce
traffic congestion, smog, and accidents. The
deepened canal, which serves the concrete and
asphalt industry, will improve accessibility to the
eastern Netherlands by ship. Moreover, one million cubic meters of sand dredged from the canal
will be used to construct the new highway.
For example, the digital model with the canal
depths was used to calculate the quantities of
material to be dredged, and the model was then
installed on the excavator’s GPS. The screen in
the cab told the operator where to dredge and
the machine control system made sure the profile
CIVIL ROAD DESIGN
was correct. This alone gave the firm a 20 percent
increase in productivity.
Thus far on the first part of the project, use of
Bentley MX and machine control have saved the
firm seven weeks and €250,000. ;
To help meet the project’s tight time schedule,
all equipment on site—including excavators, bulldozers, and graders—uses machine control systems.
The 3D models created using Bentley MX for project design and calculation will be directly transferred to the construction phase for use in the