Chantry Lane Chalk Mine Remediation End of Works Gathering Scottish - - PowerPoint PPT Presentation

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Chantry Lane Chalk Mine Remediation End of Works Gathering Scottish - - PowerPoint PPT Presentation

Oct 04, 2023 342 likes •610 views

Chantry Lane Chalk Mine Remediation End of Works Gathering Scottish Division Project Statistics Original Contract Project End % Difference No. of boreholes 550 nr 1062 nr 93 Original Contract Project End % Difference Total drilling

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Scottish Division Chantry Lane Chalk Mine Remediation End of Works Gathering

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Project Statistics

Original Contract Project End % Difference

  • No. of boreholes

550 nr 1062 nr 93 Total drilling metreage 9897 m 19783 m 100 Total grout volume 4650 m3 2355 m3

  • 49
  • No. of Validation Probes

N/A 618 nr N/A

  • No. of Internal Probes

12 nr 24 nr 100

  • No. of GI probes

62 nr 598 nr 865

  • No. of GI boreholes

7 nr 15 nr 114

  • No. of properties to be treated

16 nr 27 nr 69

Original Contract Project End % Difference

  • No. of boreholes

550 nr 1062 nr 93 Total drilling metreage 9897 m 19783 m 100 Total grout volume 4650 m3 2355 m3

  • 49
  • No. of Validation Probes

N/A 618 nr N/A

  • No. of Ground Investigation

probes 62 nr 598 nr 865

  • No. of Internal Probes

12 nr 24 nr 100

  • No. of Ground Investigation

boreholes 7 nr 15 nr 114

  • No. of properties to be

treated 16 nr 27 nr 69

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SLIDE 3

Progress Photographs

Vigors Croft

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Progress Photographs

Vigors Croft

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SLIDE 5

Progress Photographs

Vigors Croft

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SLIDE 6

Progress Photographs

Vigors Croft

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Progress Photographs

Bishops Rise

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Progress Photographs

Chantry Lane

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Progress Photographs

Chantry Lane

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SLIDE 10

Progress Photographs

Chantry Lane

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Progress Photographs

Chantry Lane

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SLIDE 12

Progress Photographs

Chantry Lane

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Progress Photographs

Chantry Lane

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Progress Photographs

Chantry Lane

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Progress Photographs

Open Shaft Before Works Shaft Capping Copse

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Technical Innovation

Use of 3D Geotechnical Software to help interpret the probing data and map the treatment

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Technical Innovation

Use of downhole high resolution cameras Building monitoring and setting

  • ut with robotic total stations
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Press Coverage

Featured in the Welwyn and Hatfield Times Wednesday 19th March 2014

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Reinstatement Photographs

During Works After Works Vigors Croft

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Reinstatement Photographs

Before Works After Works Chantry Lane

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Reinstatement Photographs

Before Works After Works Chantry Lane

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Reinstatement Photographs

Before Works After Works Chantry Lane

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Reinstatement Photographs

During Works After Works Vigors Croft

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Reinstatement Photographs

During Works After Works Vigors Croft Chantry Lane

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Reinstatement Photographs

Before Works After Works Chantry Lane

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The Project Team would like to thank you for accepting us into your community and your patience during the works Best wishes for the future