Msheireb Station serves as the heart of Phase 1 of the Doha Metro
Project, as it is the major interchange station of three metro lines –
with Red and Green Lines running parallel and Gold Line situated
underneath. It is the largest underground station in Doha situated at
the corner of the Msheireb Downtown Doha development.
for Msheireb Station, approximately 40 m below ground level is one of
the deepest excavations for metro in the Middle East so far, therefore,
the instrumentation & monitoring work played an important role in
Encardio-rite was awarded the sub-contract for
providing complete monitoring and surveying solutions for diaphragm
walls, ground anchors, piles, groundwater, adjacent ground and
buildings, all falling within the zone of influence of the Msheireb
Station and its west entrance structure.
The scope of work
included the supply, installation, monitoring and surveying, spiral test
for inclinometer installed in soil, regular calibrations, setting up an
online web based data management system (WDMS) and maintenance during
the contract period. A pre-construction condition survey for buildings
within zone of influence was also executed by Encardio-rite.
monitoring program included instruments like inclinometers, in-place
inclinometers, piezometers, surface settlement points, building
settlement points, prism targets, tilt meters, crack meters, load cells
and automatic data loggers.
An experienced and proficient team
worked on this project for almost 4 years. Monitoring reports included
interpretations of variations observed in instrument data, mentioning
factors likely to affect their behavior e.g. construction, dewatering,
third party activities etc. These reports were provided to the
contractor on a regular basis.