GEOTECHNICAL INVESTIGATION TESTING METHODS
geotechnical investigation An important basis for the planning and construction of building and infrastructure projects (comprising various types of structures as foundation, excavation pit, land reclamation, beach nourishment etc.) is the knowledge of the ground conditions. For this purpose, the geotechnical investigation with its respective services shall be carried out. Their nature and extent depends on the type of the structure, the difficulty of the structure and the expected ground conditions.
Geotechnical Data Collection
Geotechnical Investigation Programme
Geotechnical Field Investigation and Sampling
Geotechnical Laboratory Testing
Geotechnical Investigation Report
GEO TECHNICAL DATA COLLECTION
Geotechnical Topography maps
Geotechnical Geology maps and evaluation of regional geology conditions such as earthquake, faults, formation of soils
Geotechnical Climate and weather data
GEOTECHNICAL INVESTIGATION PROGRAMME
List of technical standards to be applied (geotechnical site investigation, drilling methods in soil / rock, sampling of soil / rock / groundwater, field testing, geotechnical laboratory testing of soil / rock / groundwater characteristics)
Number, mapping / location, depth of boreholes
Soil and rock drilling & sampling methods (Soil Investigations)
Number of standard penetration tests (SPT)
Number of field vane shear tests
Number of disturbed and undisturbed soil samples
Number of undisturbed rock samples
Ground water sampling
Geotechnical laboratory testing programme
GEOTECHNICAL FIELD INVESTIGATION AND SAMPLING
Drilling Works
Soil Sampling & Soil Investigations
Rotary Core Drilling and Rock Sampling
Standard Penetration Test (SPT)
Field Vane Shear Test (VST)
Cone Penetration Test (CPT)
GEOTECHNICAL LABORATORY TESTING WITHIN GEOTECHNICAL INVESTIGATION
Moisture content - determination of the moisture content of a soil as a percentage of its oven-dried weight.
Unit weight - determining the total/moist and dry densities - unit weights - of soil specimens.
Specific gravity - determination of the specific gravity of soil solids passing the 4.75-mm sieve (No. 4) by means of a water pycnometer.
Attenberg limits - determination of the liquid limit, plastic limit, and the plasticity index of soils.
Particle size distribution - quantitative determination of the distribution of particle sizes in soils, distribution of particle sizes larger than 75 μm - retained on the No. 200 sieve - is determined by sieving, while the distribution of particle sizes smaller than 75 μm is determined by a sedimentation process, using a hydrometer.
Engineering properties tests (determining of strength and deformation parameters)
Rock Strength Properties Tests
Chemical Analysis of Groundwater
GEOTECHNICAL INVESTIGATION REPORT
Project description
Description of the works performed with respect to the geotechnical investigation programme
Technical standards
Site conditions
Geotechnical Field Investigation
Drilling of boreholes
Soil sampling
Rock coring and rock sampling
Standard penetration tests
Field vane shear tests
Cone penetration tests
Final quantity report on field investigation works
Geotechnical Laboratory Testing
Index properties tests (moisture content tests, unit weight tests, specific gravity tests, atterberg limits tests, particle size distribution tests)
Engineering properties tests (unconfined compression strength tests, consolidation / oedometer tests, consolidated undrained triaxial compression tests)
Rock strength properties tests (point load tests, uniaxial compression strength tests)
Chemical analysis of ground water
Final quantity report on laboratory tests
Evaluation of Soil Conditions and Soil Parameters
Soil profile
Deformation properties of soft clay layers (pre-consolidation pressure and over consolidated ratio, compression, coefficient of primary consolidation index, cecondary consolidation)
Strength parameters (undrained shear strength, strength parameters from CIU tests, SPT-N values)
Groundwater
Ground water level measurement
Results on chemical ground water analysis and evaluation of level of aggressiveness to structures
Conclusions and Recommendation
Geotechnical soil conditions of the project site
Recommendation for building foundation methods, soil improvement methods … (acc. to the project scope)
LIST OF STANDARDS FOR GEOTECHNICAL INVESTIGATION SERVICES
IS:1892-1979, Code of Practice for subsurface investigation for foundation. (reaffirmed 2011)
IS:4453-2009, Subsurface Exploration by Pits, Trenches, Drifts and Shafts - Code of Practice (reaffirmed
2012)
IS:1888-1982, Method of Load Test on Soils. (reaffirmed 2011)
IS:2131-1981, Method for Standard Penetration Test for Soils. (reaffirmed 2011)
IS:3132-1986, Code of practice for thin-walled tube sampling of soils (reaffirmed 2011)
IS:10108-1982, Code of practice for sampling of soils by thin wall sampler with stationary piston
(reaffirmed 2010)
IS:4434-1978, Code of practice for in-situ vane shear test for soils (reaffirmed 2011)
IS:4968 Part 1-1976, Method for subsurface sounding for soils: Dynamic method using 50 mm cone
without bentonite slurry (reaffirmed 2011)
IS:4968 Part 2-1976, Method for subsurface sounding for soils: Dynamic method using cone and bentonite
slurry (reaffirmed 2011)
IS:4968 Part 3-1976, Method for subsurface sounding for soils: Static Cone Penetration Test (reaffirmed
2011)
IS:5249-1992, Determination of dynamic properties of soil - Method of test (reaffirmed 2010)
IS:5529 Part 1-2013, In-situ permeability test Part 1 Test in overburden - Code of practice
IS:5529 Part 2-2006, In-situ Permeability Tests: Part 2 Tests in Bedrock (reaffirmed 2011)
IS: SP36 Part 1-1987, Compendium of India Standards on Soil Engineering Part 1 Laboratory Testing of
Soils for Civil Engineering Purposes
IS: SP36 Part 2-1988, Compendium of India Standards on Soil Engineering Part 2 Field Testing of Soils
for Civil Engineering Purposes
IS:1498-1970, Classification and identification of soils for general engineering purposes
IS:2809-1972, Glossary of terms and symbols relating to soil engineering
Geotechnical Planning & Geotechnical Investigation Programme
Code of Practice for Site Investigation | BS 5930:1999 |
Vietnamese Code of Practice for Exploratory Drilling in Engineering Geology | 22TCN 259-2000 |
Vietnamese Standard of Geotechnical Investigation for Marine Structure | 22TCN 260-2000 |
Geotechnical Field Investigation Works
Standard Guide for Use of Direct Rotary Drilling with Water-Based Drilling Fluid for Geoenvironmental Exploration and the Installation of Subsurface Water-Quality Monitoring Devices | ASTM D5783 |
Thin-Walled Tube Sampling of Soils for Geotechnical Purposes | ASTM D1587 |
Standard Practice for Rock Core Drilling and Sampling of Rock for Site Investigation | ASTM D2113-99 |
Test Method for Penetration Test and Split-Barrel Sampling of Soils | ASTM D1586 | Standard Penetration Test
Standard Test Method for Electronic Friction Cone and Piezocone Penetration Testing of Soil | ASTM D5778 | Cone Penetration Test
Standard Test Method for Field Vane Shear Test in Saturated Fine-Grained Soils | ASTM D2573 | Field Vane Shear Test
Standard Practice for Description and Identification of Soils | ASTM D2488 |
Geotechnical Laboratory Testing
Standard Practice for Classification of Soils for Engineering Purpose | ASTM D2487 |
Standard Practice for Dry Preparation of Soil Samples for Particle-Size Analysis and Determination of Soil Constants | ASTM D421 |
Standard Practice for Particle-Size Analysis of Soils | ASTM D422 | Sieve / Hydrometer Analysis
Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity Index of Soils | ASTM D4318 | Attenberg Limits
Standard Test Method for Specific Gravity of Soil Solids by Water Pycnometer | ASTM D854 | Specific Gravity
Standard Test Methods for Laboratory Determination of Density (Unit Weight) of Soil Specimens | ASTM D7263 | Bulk Density
Standard Test Method for Laboratory Determination of Water Content of Soil and Rock by Mass | ASTM D2216 | Natural Moisture Content
Standard Test Methods for One-Dimensional Consolidation Properties of Soils Using Incremental Loading | ASTM D2435 | Oedometer Test
Standard Test Method for Unconfined Compressive Strength of Cohesive Soils | ASTM D2166 |
Standard Test Method for Consolidated Undrained Triaxial Compression Test for Cohesive Soils | ASTM D4767 |
Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications | ASTM D5731 |
Standard Test Method for Unconfined Compressive Strength of Intack Rock Core Specimens | ASTM D2938 |
Standard Test Method for Underground Water Chemical Test – pH Value | ASTM D4972 |
Standard Test Method for Underground Water Chemical Test – Chloride Content | ASTM D512 |
Standard Test Method for Underground Water Chemical Test – Sulphate Content | ASTM D516 |
GEO TECHNICAL LIST TESTING SERVICES
Dynamic Core Drilling Testing
Standard Pentration Testing
SPT Testing Services
Plate Load Testing
Soil Electric Resistivity Testing
Field density Testing
Field Permeability Testing
Field CBR Testing
Lateral Load Testing
Pile Load Testing
Bentonite Powder Testing
Compaction Testing
Electrical Resistivity Test (In-situ)
Geotechnical Investigation
GEOTECHNICAL INVESTIGATION SERVICES
- Subsurface Investigations
- Test Borings
- Rock Coring
- CPT Soundings
- Test Pits
- Laboratory Testing
- Percolation Testing
- Infiltration Testing
- Asphalt/Concrete Coring
- Dynamic Cone Penetrometer Testing
- Carbonate Assessments
- Sinkhole Investigation
- Fracture Trace Analysis
- Seismic Site Classification
- Bearing Capacity and Settlement Analysis
- Slope Stability Analysis
- Topsoil Nutrient Analysis
- Flexible/Rigid Pavement Evaluation/Design
- Soil Resistivity
GEOLOGICAL ANALYSIS
Geophysical Analysis laboratories to do all your Geology Analysis, surveys, exploration, characterization, experimentation, projects, testing, research, developments, investigations, certifications or studies, such as:
- Angle of Repose Testing
- Ash Content Testing
- Borehole Logging Testing
- Buried Obstructions Testing
- Cement Permeability Testing
- Cement Stability Studies Testing
- Civil Engineering Testing
- Clay Lumps Testing
- Compactibility Testing
- Compaction Testing
- Compressibility Testing
- Consolidation Testing
- Construction Materials Evaluations Testing
- Dredged Materials Testing
- Durability Testing
- Effective Shear Strength Testing
- Field Audits
- Frequency Domain Electromagnetic Survey Testing
- Geologic Hazard Identification Testing
- Geological Features Testing
- Geology Characterization Testing
- Geology Investigations
- Grain Size Distribution Testing
- Grain Size Testing
- Ground Penetrating Radar Testing
- Groundwater Pathways Testing
- Hydraulic Conductivity Testing
- In-situ Testing
- Land Surveys Testing
- Lateral Earth Pressures Testing
- Liquid Limits Testing
- Lloyd Kahn TOC Testing
- Marine Surveys Testing
- Minerals Ore Analysis Testing
- Nuclear Density Testing
- Oxidation Reduction Potential
- Particle Analysis Testing
- Permeability Testing
- Permeability Testing
- Plasticity Testing
- Resistivity Imaging Testing
- Rock Mass Characteristics Testing
- Rock Mechanics Testing
- Rock Slope Engineering
- Sediment Characterization Testing
- Seepage Analysis Testing
- Seisimic Refractance Testing
- Seismic Hazard Evaluation Testing
- Seismic Reflectance Testing
- Site Inspections Testing
- Slope Stability Testing
- Soil Compressibility Testing
- Soil Mechanics Testing
- Soil Strength Testing
- Subsurface Exploration Testing
- Swell Testing
- Swelling Pressure Testing
- Time Domain Electromagnetic Survey Testing
- Time Domain Electromagnetic Survey Testing
- Total Shear Strength Testing
- Triaxial Testing
- Tundra Support Studies Testing
- Void-Ratio Testing
- Water Tables Surfaces Testing
- Well Test Analysis Testing
GEOLOGICAL MATEL ANALYSIS
- Aluminum Analysis
- Barium Analysis
- Bismuth Analysis
- Boron Analysis
- Cadmium Analysis
- Calcium Analysis
- Cesium Analysis
- Chromium Analysis
- Cobalt Analysis
- Fluorine Analysis
- Gold Analysis
- Iron Analysis
- Lead Analysis
- Lithium Analysis
- Magnesium Analysis
- Manganese Analysis
- Nickel Analysis
- Phosphorous Analysis
- Potassium Analysis
- Selenium Analysis
- Silver Analysis
- Sodium Analysis
- Sulfur Analysis
- Tin Analysis
- Titanium Analysis
- Uranium Analysis
- Vanadium Analysis
- Zinc Analysis
- Zirconium Analysis and Zirconium Testing
GEOLOGICAL TESTING SERVICES LIST
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