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Geo Dynamics

Vadodara, Gujarat
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Geo Dynamics is India's Pioneering Company committed to provide quality testing services to the pile foundation and construction industry using latest Pile Driving Analyzers, Pile Integrity Testers & NDT equipments.+ Read More

Nature of Business

Service Provider

Year of Establishment

1998

CAPWAP Analysis
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CAPWAP Analysis

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An essential tool with PDA, Geo Dynamics has been a pioneer in introducing Case Pile Wave Analysis Program (CAPWAP) for pile foundation testing in the country. It is mandatory to verify PDA field results for all bored and cast-in-place driven concrete piles, CFA piles at any jobsite. CAPWAP should also be used for at least the first few driven piles at any site monitored for end of driving and should also be used for all re-strike tests at any project site to correctly estimate the pile capacity.

The CAPWAP program is an analytical method that combines measured field data with pile wave equation type procedures, to predict the pile's static bearing capacity and soil resistance distribution. Measured force and velocity data is directly input from the PDA. Based on the measured velocity data, the program computes force required to induce the imposed velocity. Both measured and computed forces are plotted as a function of time and the iterative analysis is continued till there is good agreement between both the curves. If the agreement is not satisfactory, the soil resistances at the pile point and along the pile are adjusted until a good match is obtained. This gives correct estimates of the actual static pile capacity measured during field testing, and also the friction and end bearing components.

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Grlweap
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Grlweap

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Geo Dynamics has successfully demonstrated its capability by providing complete GRLWEAP analysis services for offshore piling projects at Madagascar, Dahej, Shell Project, Hazira, KAANB Project Saudi Arabia. Few important projects were also jointly done with GRL Engineers, Inc., to gain from their expertise as original developers of the technology. 

The GRL Wave Equation Analysis Program (GRLWEAP) simulates pile driving using typical Wave Equation numerical analysis technique for driven piles. The analysis simulates what is happening in hammer, pile and soil during and immediately after the ram impact. It does this by replacing the system's components with masses, springs and dashpots and calculating the displacements and velocities of the masses and the forces in the springs. It provides drivability, bearing graph and inspector chart as options and provides extremely useful information before starting driving at a project site.

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High Strain Dynamic Pile Testing
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Geo Dynamics is a market leader in this testing and owns sets of Pile Driving Analyzers for assessment of bored / driven concrete and steel piles. We have proven experience of more than a decade in almost all types of pile foundations listed below
  • Cast-in-place bored piles for diameters from 400mm to 1600mm
  • Monitoring of driven pre-cast / pre-stressed concrete piles
  • Testing of Steel H-pile and close / open ended steel pipe piles
  • Driven and Bored Micro Piles
  • Offshore piles for jetties, ports, platforms

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Low Strain Pile Integrity Testing
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We are considered an industry standard for Low Strain Integrity Testing due to our consistent results and performance. Geo Dynamics owns 16 sets of pile integrity testers available at various locations across the country. We are equipped with all the current models and our specific expertise includes testing large scale projects efficiently backed by good equipment / manpower ratio. 

Our database of testing more than 20,000 piles annually helps us evaluate critical information like necking, soil inclusion, cold joints, concrete quality in quick time. The testing conforms to ASTM D5882. With proper site arrangements, 30 to 50 piles can be tested per day. Testing is conducted through our offices or alongside major projects across the country. Often our team is fully equipped to provide site reports and analysis so as to avoid delays in construction activity. 

Geo Dynamics has the complete setup and expertise in use of Pulse Echo Method, Force-Velocity and Transient Dynamic Response Approach, although the Pulse Echo Method is most widely used and recommended.

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Cross Hole Sonic Logging
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Cross Hole Sonic Logging

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Geo Dynamics is again at the forefront in introducing yet another technology in India that is getting popular worldwide. We are the first company to provide complete CSL testing that includes waterfall diagram, wave speed and energy curve and TOMOGRAPHY. The method was first successfully introduced by us for the SONE Railway River Bridge Project in Bihar and has later been used at many projects including the prestigious Bandra Worli Sea Link Project at Mumbai. 

The method is particularly useful for large diameter pile foundations for major structures like river bridges, towers, initial piles (before load testing) It can also be used for slurry walls or wall panels. The method is standardized as per ASTM D6760 and determines the quality and consistency of concrete between pairs of PVC or steel tubes pre-installed in bored piles, wall panels, concrete foundations. The output is in the form of waterfall map alongwith wave speed and energy or amplitude plot. Tomography software gives a good 2-D or 3-D image to visualize defects inside the pile for future corrective action.

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NDT of Concrete
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NDT of Concrete

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Geo Dynamics is fully equipped and experienced to provide Non Destructive Testing Services for concrete structures. We have executed niche projects for Delhi Metro, Bridge at Chandigarh, Pipavav Port Jetty, Dahej, real estate projects and projects for Power Plants. Geo Dynamics is equipped with the latest range of equipments from Proceq, who are world leaders in providing these technologies for testing of concrete. We currently provide the following tests, although please check with us for any additional tests that we keep adding on continuous basis.

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Training & Data Evaluation
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Mr. Ravikiran Vaidya is a Pile Dynamics, Inc., authorized training instructor for most of the technology equipments sold by Pile Dynamics, Inc., pioneers in deep foundation technology and in this form of testing worldwide. Numerous companies in the Gulf like Huta Foundations, Gulf Consult in Saudi Arabia, Advanced Construction Technology Services (ACTS), Qatar, NCCBM, Delhi have been trained by us in use of Pile Driving Analyzer, Pile Integrity Tester, CAPWAP, CSL. Individual or group training programs can be arranged at our Head Office or at client location with consent from Pile Dynamics, Inc., if new equipments are purchased or refresher courses are required.

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Ground Penetrating Radar

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Geo Dynamics has recently acquired a Ground Penetrating Radar (GPR) system. GPR is a geophysical method that uses radar pulses to image the subsurface. GPR profiles are used for evaluating the location and depth of buried objects, voids, etc.

Geo Dynamics now offers a wide range of applications for various industries. Bridge professionals and structural engineers require effective methods for determining the condition of aging bridge decks, parking structures, dams or any other reinforced concrete structures. Now with GPR technology it is possible to assess condition of bridge decks, determine concrete cover and bridge deck thickness etc. Cutting and coring experts and construction professionals require a reliable, non-destructive means to locate targets such as reinforcement within concrete structures prior to drilling, cutting or coring.

GPR is the tool of choice based on ease of use, field-proven durability, and accuracy for locating rebar, post-tension cables and conduits as well as estimating slab thickness and detecting the presence of voids that can impact the structural stability of a concrete slab.

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