15 nos onshore boreholes were drilled up to max.
30.45 meters of depth. 3 nos pressuremeter tests,
6 nos permeability tests, 10 nos seismic
refraction,9 nos electric resistivity tests are executed.
23 nos nearshore boreholes were drilled up to
max. 63.45 meters of depth, 4 nos of PS Logging
Tests were executed at selected boreholes and
laboratory tests were carried out on selected
samples and geotechnical report is prepared.
OFFSHORE GEOTECHNICAL INVESTIGATION
Drilling a total of 5 nos boreholes and execution of
insitu & geophysical tests, Standart penetration
tests(SPT), Execution of siesmic reflection survey
on 5 lines along and 2 lines cross the pipeline.
ONSHORE GEOTECHNICAL INVESTIGATION
Drilling a total of 16 nos boreholes and execution
of insitu & geophysical tests, Standart penetration
tests(SPT), 9 nos field permeability tests, 1 no well
pump test, 4 nos pressuremeter tests, 7 nos field
density tests, 7 nos plate load tests, 6 nos
electrical resistivity tests, 2 nos thermal resistivity
tests, 1 no seismic down hole tests and intallation
of 1 no standpipe for ground water monitoring.
BATHYMETRIC SURVEY
Tracks spaced were about 25m apart
perpendicular to the coast line and the
bathymetric survey points along each profile were
spaced at 1 sec. Control lines spacing were about
250m parallel to the coast line.
TOPOGRAPHICAL SURVEY
The carried out works covers the detaied
topographical survey and preparation of map at
scale of 1:500 suitable for preparation of the
detailed design of the power plant facilities.
The subsoil investigations consisted of drilling a total of 67nos boreholes together with standard penetration test (SPT) , excavation of 5 nos test pits, 6 nos plate load tests (PLT), 15 nos of in-situ density tests and 43 nos of electrical resistivity tests.
The subsoil investigations consisted of drilling a total of 160 nos boreholes together with standard penetration test (SPT) and excavation of 140 nos test pits up to 2.0m depth, execution of 440 nos electrical resistivity test, 6 nos cone penetration tests and carrying out laboratory testinng and geotechnical reporting.
During the site work 25 nos boreholes were drilled up to 100m depth And 18 nos test tips (3.50m depth) excavated. The 12 nos plate loading tests and in-situ density tests were carried out in these pits. 13 pressuremeter tests were carried out in these boreholes. 13 nos varible head permeabilitt tests were carried out to determine of permeability of the clayey layer cover big part of 2NF runway. Also 3 nos water pressure tests (WPT) were executed in boreholes drilled in rock formation.
The drilling project studies, geophysical surveys and field and laboratory tests were carried out. Field work comprised of 14 nos boreholes, 3 nos PSLogging and 3 nos seismic refraction measurements. The max. Depth of drilling was 50.45m.
A total of 39 boreholes were drilled to between depths of 10.00 m to 60.00 m.
This work was conducted on an agreement signed with Arcona oil services Libya in order to carry out near shore geotechnical investigations for Al Khalij power plant project. Atotal of bine near shore boreholes drilled up to maximum 16.25m. Total length of drilling is 144.75m.
The geotechnical works comprised 27 nos CPT tests (11nos CPt at investigation area, 16 nos CPT at lump clay fill) and excavation of two different levels trial pit (4m and 8m depth) and installation of 18 nos settlement beacons, 4 nos piezometers, 2 nos magnetic extensometers, 2 nos standpipes.
two sand cone tests were carried out on filling material one sampling hole was drilled and 11 nos undisturbed (UD) samples were taken. 11 nos Vane tests were carried out in lumpy clay.
The subsoil investigation consists of; drilling a total of 3 nos boreholes together with Standard Penetration Tests (SPT) and excavation of 2 nos Trial Pits.