the soil engineer on click presentation
TRANSCRIPT
The Soil Engineer CC is a 100% Namibian owned Company and based in Namibia
We are looking to fill the gap for Specialist Geotechnical and Geophysical Consulting opportunities within the Namibian Mining Context
Geo-Physical in-situ borehole surveys Geotechnical testing specification, programming
and management
Installation and monitoring of Geotechnical instrumentation
Slope Stability Investigation, analyses, presentation and reporting
Site Investigations & Testing
Slimhole optical Televiewer Geo-Physical in-situ borehole surveys
Principle of measurement The CCD camera, located above the conical mirror, captures the
reflection of the borehole wall
The light source is provided by a light ring assembly located in the optical head
Geo-Physical in-situ borehole surveys Slimhole optical Televiewer
Logging Parameters 360 degrees orientated
optical image Borehole azimuth and dip Tool internal temperature Relative bearing Magnetic field Gravity
Applications Detailed and orientated
structural information Fracture detection and
evaluation Detection of thin beds Determination of bedding dip Lithology characterization Casing inspection
Geo-Physical in-situ borehole surveys Slimhole optical Televiewer
Deviation data displayThe module includes various 2D and 3D display options for deviation data from classical bull’s eye, projection and closure 2D viewsto 3D cubic and cylindrical displays. Multiple well paths and target layers can be displayed.
Geo-Physical in-situ borehole surveys Field data Logger - does the following :
Depth control Tool configuration and
power control, and advanced tool settings
Telemetry control and tuning
Data sampling record and replay control
System status display Wireline weight indicator
display Data browser and
processor control windows
Geo-Physical in-situ borehole surveys Winch :
The system is equipped with slip ring and connections through which surface instrumentation can communicate withthe probe. A precision measuring wheel and rotary encoder are also included to allow the amount of cable played out to betracked. The cable is automatically wrapped on the drum in even layers through the level wind mechanism. The motor iscontrolled by a 110V (or 220V depending on the model) four-quadrant motor speed controller that allows the speed toremains constant with a varying load and prevents overhauling with heavy loads. Dynamic electronic brake is a standarditem
Geo-Physical in-situ borehole surveys Slimhole acoustic Televiewer
Applications :
Fracture detection and evaluation in muddy and or oil filled holes
Detection of thin beds Determination of bedding dip Lithological characterization Breakout analyses Monitoring of earth stress field Casing inspection (inner corrosion only) High resolution hole diameter
measurements
Can be used in zero visibility conditions, i.e. mud & oil filled holes
Geo-Physical in-situ borehole surveys Three arm caliper
Application
It records a single continuous borehole diameter log by means of three mechanically coupled arms in contact with the borehole wall. The 3 arm caliper measurement is a useful first log to determine the borehole condition before running other probes – to assess the possibility for the probes to get stuck in the hole due highly fracture zones
Geo-Physical in-situ borehole surveys Geo-Mechanical applications
Cement bond logging: evaluation of the cement bond behind a steel casing in a borehole
Geology: lithology identification based on rock velocity analyses Permeability/porosity evaluation
Compute properties of the rocks : poisson’s ratio, shear modulus, Young’s modulus, Bulk modulus
Computing borehole volume and diameter, locate/measure dimension of fractures and washouts
Mineral Exploration applications Coal exploration to
locate with accuracy the coal beds or seams
To delineate and characterize Iron & metallic ore bodies
Delineation of diamond bearing rocks
Uranium exploration and evaluate ore grades
Quantifying the concentration of 3 main radioisotopes in radioactive ores (Thorium, Uranium and Potassium) – spectra analyses
Geo-Physical in-situ borehole surveys
Measuring in-situ Fluid Properties Water quality analyses, salinity
measurement
Geo-Physical in-situ borehole surveys
Identify open and water producing fractures in a borehole
Salt-water intrusion studies Geothermal gradient logging
Geotechnical testing specification, programming and management Geotechnical and Exploratory :
Specifying, Scoping,
Tendering, Assessment, Appointment and Supervision
Slope Stability Investigation, analyses, presentation and reporting Geotechnical site investigations and presenting
of all field data Mapping of all major and minor discontinuities
(dip and dip directions) and interpreting thereof Rating and interpretation of global rock mass
behavior and properties Assessing water table presence and effect Effective and operational design of pit slopes Presenting of slopes in 2D and 3D
Design, Installation, Monitoring and Implementation of instrumentation to monitor slope stabilities in real time with early warning implementation protocols and systems
Lateral Support Design
Slope Stability Investigation, analyses, presentation and reporting
Rock anchor design
Geotechnical Investigations for Construction Purposes Foundation alternatives analyses Soil improvement recommendations Settlement analysis and monitoring Anchor load tests Evaluation of soil bearing capacity Pile driveability and capacity analyses Liquefaction potential studies Cantilevered, anchored, and braced sheet pile
analyses Cantilevered, anchored, and braced sheet pile
analyses
Geotechnical Investigations for Construction Purposes Seepage analyses Dewatering design Road pavement and Geometric design
Borrowpit Investigations
Earth Dam design Erosion protection works
Site Investigations & Testing Identifying and implementing geotechnical
investigative measures and requirements Recording Geotechnical field data and
interpretation Core Photography Rock mass rating systems Core drilling project specifications, Contract
administration, tenderering, assessment, appointment and site supervision
Core profiling - including orientated structural core profiling - that records dips and dip directions
Site Investigations & Testing
Fence diagrams presenting similar layers, observed in trial pits and boreholes
Site Investigations & Testing In-situ and on site soil/rock Bearing capacity and
other tests :1. Plate Load tests2. Core strength tests (Point load and Schmidt Hammer tests) 3. DPSH tests4. SPT testing
Rock Point Load Testing
Plate Load Testing
Installation and monitoring of Geotechnical instrumentation : Data loggers that monitor :
Dams and bridges
Any structure adjacent to and a ected by ffconstruction activities
Tunnels (both during construction and operation)
Tracks on the railway networks for twist and longitudinal settlement
Monitoring rock falls
Vibrating Wire Soil Extensometer Horizontal and vertical displacements within
embankment fill material
Installation and monitoring of Geotechnical instrumentation :
Displacements of retaining walls and abutments
Control of natural and cut slopes, quarry and mining excavations
Magnetic Extensometer System is installed at locations where monitoring of settlement or heave is needed, i.e. :
Installation and monitoring of Geotechnical instrumentation :
Excavations Foundations Dams Embankments Retaining structures, such as sheet piles and
slurry walls Tunnels and shafts Surcharge sites
Rod Extensometers, applications :
Installation and monitoring of Geotechnical instrumentation :
Movements of rock and soil, caused by fractures, landslides and weathering
Underground settlements and deformations of foundations and abutments, as well as man-made caverns
Relaxation and deformation of rock around tunnel walls, shafts, pillars, roofs and caverns
Suitable for short or long term monitoring
Inclinometer :
Installation and monitoring of Geotechnical instrumentation :
Detecting slope failures and landslidesDetermining shear and slip zonesMonitoring diaphragm or sheet pile wallsMonitoring bending in pilesVerifying design assumptions and finite
element analysisLong term monitoring purposesMonitoring the performance of struts and
ground anchorsMonitoring dams
Crack meter that monitor movement in :
Installation and monitoring of Geotechnical instrumentation :
Bridges & concrete dams Tunnels Tanks Masonry structures Brick and stone buildings Construction joints Pipelines Joints and bearing/support interaction Structures susceptible to earthquake
and landslide areas
Pressure Cell that monitor pressure/force in :
Installation and monitoring of Geotechnical instrumentation :
rock boltscable anchors and tendons structural beams pilesloads in pull-out tests on trial anchors
Vibrating Wire Piezometer to monitor and accurate measurement of pore water pressure in fully or partially saturated soil and rock - applications :
Installation and monitoring of Geotechnical instrumentation :
Environmental management including landfill sites
Monitoring of aquifers
Monitoring of tidal effects on coastal soils
Dams
Embankments
Vibrating Wire Piezometer to monitor and accurate measurement of pore water pressure in fully or partially saturated soil and rock - applications :
Installation and monitoring of Geotechnical instrumentation :
Potential landslide sitesDewatering excavationsTailings lagoonsPumping testsMonitoring seepageControl placement of fill