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Reinforced Concrete Gallery Vault — GPR Detection of Voids and Cavities behind the Lining prior to Contact Grouting

Reinforced Concrete Gallery Vault — GPR Detection of Voids and Cavities behind the Lining prior to Contact Grouting

Description

GPR survey of a reinforced concrete gallery vault, carried out to locate voids and cavities and optimise a contact grouting campaign.

Detecting voids or cavities behind or within a reinforced concrete gallery vault is a critical operation to ensure the stability of the structure (risk of sinkholes and ground decompression).

3 radar files acquired with the GSSI NX15 antenna mounted on a pole and controlled by the NX Control app.

The radargrams clearly show thicknesses, interfaces, voids and deteriorated zones, as well as arch ribs regularly spaced at 120 cm.

Information

Application Concrete / Civil Eng. Geotechnics
GSSI antennaNX15
Frequency1500 MHz
FormatNX
Size176 MB
Files3
Channels1
GPS filesNot available
ContributorDEM Ingénierie
Added on2026-11-10
Ground truth Verified Destructive testing

Archive contents

  • 5 files
  • 168 Mo .zip archive
  • 168 Mo unpacked
  • NX × 3
  • TXT × 1

Also included: GPRbase_LICENCE.txt

Show the full list (5)
  1. GPRbase_LICENCE.txt 5 Ko
  2. Scan 001.nx 27,8 Mo
  3. Scan 003.nx 47,5 Mo
  4. Scan 008.nx 92,8 Mo
  5. VERSION.txt 319 o

Cite this dataset

APA

MDS - Le Matériel de Sondage - GPRbase (2026). Reinforced Concrete Gallery Vault — GPR Detection of Voids and Cavities behind the Lining prior to Contact Grouting [Data set]. GPRbase. GSSI, NX15, 1500 MHz. Data acquired by DEM Ingénierie. https://www.gprbase.com/en/dataset/ds041-reinforced-concrete-gallery-vault-gpr-detection-of-voids/

BibTeX

@misc{gprbase_ds041,
  author       = {MDS - Le Matériel de Sondage - GPRbase},
  title        = {Reinforced Concrete Gallery Vault — GPR Detection of Voids and Cavities behind the Lining prior to Contact Grouting},
  year         = {2026},
  publisher    = {GPRbase},
  howpublished = {\url{https://www.gprbase.com/en/dataset/ds041-reinforced-concrete-gallery-vault-gpr-detection-of-voids/}},
  note         = {GSSI, NX15, 1500 MHz. Data acquired by DEM Ingénierie. Licensed under CC BY-NC-SA 4.0},
}

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