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

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 metreage 9897 m 19783 m 100 No. of boreholes 550 nr 1062 nr 93 Total drilling metreage 9897 m 19783 m 100 Total grout volume 4650 m3 2355 m3 -49 Total grout volume 4650 m3 2355 m3 -49 No. of Validation Probes N/A 618 nr N/A No. of Validation Probes N/A 618 nr N/A No. of Ground Investigation 62 nr 598 nr 865 No. of Internal Probes 12 nr 24 nr 100 probes No. of GI probes 62 nr 598 nr 865 No. of Internal Probes 12 nr 24 nr 100 No. of GI boreholes 7 nr 15 nr 114 No. of properties to be treated 16 nr 27 nr 69 No. of Ground Investigation 7 nr 15 nr 114 boreholes No. of properties to be 16 nr 27 nr 69 treated

Progress Photographs Vigors Croft

Progress Photographs Vigors Croft

Progress Photographs Vigors Croft

Progress Photographs Vigors Croft

Progress Photographs Bishops Rise

Progress Photographs Chantry Lane

Progress Photographs Chantry Lane

Progress Photographs Chantry Lane

Progress Photographs Chantry Lane

Progress Photographs Chantry Lane

Progress Photographs Chantry Lane

Progress Photographs Chantry Lane

Progress Photographs Shaft Capping Open Shaft Before Works Copse

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

Technical Innovation Use of downhole high resolution Building monitoring and setting cameras out with robotic total stations

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

Reinstatement Photographs After Works Vigors Croft During Works

Reinstatement Photographs After Works Before Chantry Lane Works

Reinstatement Photographs After Works Chantry Lane Before Works

Reinstatement Photographs After Works Chantry Lane Before Works

Reinstatement Photographs After Works Vigors Croft During Works

Reinstatement Photographs After Works Vigors Croft Chantry Lane During Works

Reinstatement Photographs After Works Before Chantry Lane Works

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