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  • GEOLOGICAL AND ENVIRONMENT SURVEY

Cross hole seismic system

The CROSS HOLE SEISMIC SYSTEM is the system for borehole surveys specifically designed for a thorough geophysical investigation of the subsurface and for the measurement of seismic waves of compression and shear specifically designed for the seismic survey of concrete dams, soil materials and embankments.

APPLICATIONS

  • Seismic cross-hole (2 or 3 bore holes)
  • Seismic down-hole
  • Seismic tomography
  • Estimation of ground elastic moduli
  • Cavities / faults detection
  • Seepages detection

STANDARDS: ASTM D4428/ D4428M

Cross hole seismic system

FEATURES:

Cross-Hole test consists in the direct measurements of horizontally travelling compression (P) and shear (Sv) seismic waves at test sites (i.e soil materials, concrete dams, embankments, etc) in order to get Elastic modules and local site characteristics.

Two specific borehole seismic sources are used to generate a seismic wave train. One or more receivers are used to detect the arrival of the seismic wave train in offset borings; the distance between boreholes at the test depths is measured using a borehole deviation survey (Inclis DH). Wave velocity is calculated from the measured distance and travel time for the respective wave train.

Borehole inclinometer

The new inclinometer probe INCLIS DH, designed by SolGeo, allows to perform a 3D borehole deviation survey, it is equipped with 3 magnetometric and 3 accelerometric sensors.

INCLIS DH at the surface is linked with an USB control box which provides both power supply and real data transfer to the PC, Elboration software SOLCLINO allows an instantaneous delivery of results acquired along borehole, showing its altimetric and planimetric trend.

  • P WAVES

SOLGEO SPARKER TM is an automatic source used to generate P waves; it works at many different levels of power (from 100J to 500J) ensuring frequency contents from 100 Hz up to 6kHz; it must be used in boreholes filled with water.

  • S WAVES

SOLGEO GEOSvTM is used to generate S waves. The energy source is composed of two parts: a central section that contains the pneumatic clamping tools and second part that contains the electrodynamics waves generator. The device allows it to automatically produce both upwards and downwards signals, in order to obtain an inversion of the shear waves polarization without P waves noise.

The Solgeo vertical geophone receiver, AVG (Amplified Vertical Geophone), contains a vertical sensor with an electronics preamplifier. The clamping to the borehole casing is obtained with a pneumatic device allowing surveys in boreholes up to 200 m of depth.

 

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Products

  • NON DESTRUCTIVE TESTING PRODUCTS
    • CONCRETE TESTING PRODUCTS
    • STEEL TESTING PRODUCTS
    • INSPECTION PRODUCTS FOR TRANSPORT ENGINEERING
  • STRUCTURE MONITORING PRODUCTS
  • DIGITAL SOLUTION IN SMART CITY AND INFRASTRUCTURE
    • TECHNICAL INFRASTRUCTURE FLOATING ON THE GROUND
    • UNDERGROUND TECHNICAL INFRASTRUCTURE
  • ANALYSIS & SIMULATION SOFTWARE
  • GEOLOGICAL AND ENVIRONMENT SURVEY
  • ANALYSIS, MEASUREMENT AND MONITORING PRODUCTS

New article news

ILTech_Completely transferring seismic equipment from Guralp (UK) ILTech_Completely transferring seismic equipment from Guralp (UK)
11/12/2024
ILTech completed the supply of seismic exploration equipment model X820S (24 channels) of M.A.E (Italia) ILTech completed the supply of seismic exploration equipment model X820S (24 channels) of M.A.E (Italia)
24/02/2024
Letter Of New Year Wishes For The Dragon 2024 Letter Of New Year Wishes For The Dragon 2024
03/02/2024
ILTech signed a contract to provide 11 sets of modern, high-tech equipment for geological - hydrological surveys and construction quality inspection ILTech signed a contract to provide 11 sets of modern, high-tech equipment for geological - hydrological surveys and construction quality inspection
03/02/2024
ILTech successfully handover Surface Roughness Measuring Equipment by International Roughness Index (IRI) ILTech successfully handover Surface Roughness Measuring Equipment by International Roughness Index (IRI)
20/01/2024

Documents

  • 02/07/2021: TCVN 12584:2019_Safety traffic equipment - Retroreflecting road studs - Techincal requirements and test methods
  • 02/07/2021: TCVN 12584:2019_Safety traffic equipment - Retroreflecting road studs - Techincal requirements and test methods
  • 02/07/2021: TCVN 8867:2011_Flexible pavement - standard test method for determination of elastic modulus of pavement structure using Benkelman beam
  • 02/07/2021: TCVN 8860-1: 2011_Asphalt Concrete – Test methods – Part 1: Determination of Marshall Stability and Pl astic Flow
  • 02/07/2021: TCVN 12585:2019_Safety traffic equipment- Delineator posts and retroreflectors - Technical requirements and test methods
  • 02/07/2021: TCVN 8819:2011_Specification for Construction of Hot Mix Asphalt Concrete Pavement and Acceptance
  • 02/07/2021: TCVN 11365:2016_Pavement Airport: Standard Test Method for Evaluation Pavement Classification Number (PCN) Using a Heavy-Falling Weight Deflectometer (HWD)
  • 02/07/2021: TCVN 10832:2015_Retroreflective pavement marking materials - Color - Specifications and test methods
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About us

International Leading Technologies Transfer Company Limited

Hanoi Office: 3A Floor, Lidaco – Vinaconex 7 Building, 19 Dai Tu Road, Hoang Mai Dist, Hanoi, Vietnam

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