Apr 7, 2017 ... Information page on chalk mine workings detected in the Highbarns area of Hemel Hempstead.
https://www.dacorum.gov.uk/home/planning.../highbarns-chalk-mines
Hyder is a major project management. Hyder is a major project management, engineering and environmental consultancy with nearly 5000 staff worldwide.
https://www.dacorum.gov.uk/.../high-barns---09-10-05---public-presentatio...
Jun 28, 2011 ... However, it should be noted that the recent laser survey is limited to the extent of the known mine accessed via five retained boreholes within ...
https://www.dacorum.gov.uk/.../highbarns-cals-survey-report-june-11.pdf?...
1) confirm the extents of the mine indicated by the microgravity survey, our Geotechnical. Assessment Report and the previous ground investigation data. 2) ...
https://www.dacorum.gov.uk/.../hyder-highbarns-public-meeting-presentati...
Introduction. When we met residents in October to bring people up to date with investigations that had discovered chalk mine workings in the area we gave a ...
https://www.dacorum.gov.uk/.../high-barns---nash-mills-news-number-1.pd...
Oct 14, 2015 ... Hyder Consulting (2010b), Highbarns Chalk Mines Project Geotechnical. Assessment Report, No 0004-LN01292-GD-01-0, February 2010. • Hyder ...
https://www.dacorum.gov.uk/.../final-highbarns-stabilisation-treatment-repo...
Oct 16, 2015 ... The objective of this report is to set out the works that were undertaken to treat the mines and provide the results of post mine treatment ...
https://www.dacorum.gov.uk/.../treatment-area-report-for-nos-25-27-east-g...
Dec 12, 2012 ... The purpose of this letter is to advise you of work that is shortly to be undertaken to repair an abandoned chalk mine located in the ...
https://www.dacorum.gov.uk/.../letter-for-insurance-purposes-december-20...
... mine and establishing a way forward. Your safety. Chalk mines have been around for a long period of time without affecting the safety of buildings built on ...
https://www.dacorum.gov.uk/.../advice-note-for-householders-nbsp-.pdf?...
Jun 7, 2013 ... compaction grout. This is the same as 33 double decker busses. Although the extent of the mines has proven to be very accurate, the ...
https://www.dacorum.gov.uk/.../bam-ritchies-newsletter-no-nbsp-5---nbsp-j...