GEOTECHNICAL INVESTIGATION
With highly advanced techniques, efficient machinery, experienced and competent engineers and drilling crews, Baynunah marks its incredible role in the onshore and offshore soil Investigation fields across various emirates in UAE for the last three decades.The services offered under Geo technical Investigation are listed as:
- Onshore and Offshore Drilling
- Sampling and In-situ testing
- Soil,rock and ground water laboratory tests.
- Geo technical Reporting and Foundation Design Analysis.
Onshore and Offshore Drilling.
Baynunah exploits Conventional Rotary and Cable Percussion drilling Techniques with use most advanced drilling rigs. Our offshore capabilities are ranging from shallow water to relatively deep water with rigs mounted on floating pontoons and jack up pontoons.
Rotary Drilling - Core drilling techniques used to drill soil and rock for soil investigation purposes with the help of diesel powered hydraulic drill rigs mounted on truck.
Cable Percussion Drilling - It’s an adaptation of standard well boring method, using mobile rigs specially designed for Geo technical Investigation Works.
Sampling and In-situ Testing
Even the drilling is carrying out in either onshore or offshore, it is accompanied by various type of disturbed and undisturbed sampling techniques.
Window Sampling & Windowless Sampling - Window sampling or windowless sampling is a technique using for bore through shallow soft soils to investigate the substrata in order to gain the profile of the ground conditions.
Core Sampling - Sampling of rock core sample is doing with double or triple tube core barrels.
Standard Penetration Test (SPT) - The Standard Penetration Test (SPT) is a common in-situ test used mainly to assess the strength and deformation parameters of cohesion less soil to determine the resistance of soil.
Cone Penetration Test (CPT) - It’s an advanced technique for studying the subsurface properties of soil and delineating soil stratigraphy.
Pressure Meter - A pressure meter test is an in situ stress-strain test performed on the wall of a borehole using a cylindrical probe that is expanded radially.
Packer Permeability - The packer test is carried out to measure hydraulic conductivity of a specified rock or soil unit.
Falling head Permeability - Falling Head Permeability Test mainly use to determine the permeability of the aquifer test zone from the head versus time data obtained.
Vane shear - Vane shear testing is one of the most common in-situ methods for the estimation of the undrained shear strength of the soil.
Piezometer Test - Stand pipe piezometers installed in the boreholes help to monitor the ground water table in each locations.
Soil Resistivity Test - is the process of measuring a volume of soil to determine the conductivity of the soil.
Thermal Resistivity Test - The measurement to be taken near surface of soils to determine the thermal conductivity and thermal resistivity of soil and rock.
Soil, rock and groundwater laboratory Tests
The collected samples are testing as per the International standards to find out the strength, classification and chemical parameters and to complement field observations, field testing and back analysis of the behavior of the existing ground.
Geo technical Reporting and Foundation Design Analysis
After completion of the field and laboratory works, a consolidated Geo technical Report is submitted in compliance with all Regulatory bodies and International Standards. The report contains description of project, geology of the area,, procedures used in the site Investigation, details of the work performed, field and lab test results, engineering analysis and Interpretation of the results and recommendation in lieu of the foundation design and construction.