{"id":3762,"date":"2021-06-14T07:17:02","date_gmt":"2021-06-14T07:17:02","guid":{"rendered":"https:\/\/neo.nl\/?p=3762"},"modified":"2026-01-05T09:27:16","modified_gmt":"2026-01-05T09:27:16","slug":"bewaken-veilige-ligging-leidingen-met-ahn","status":"publish","type":"post","link":"https:\/\/www.neo.nl\/en\/monitoring-safe-location-of-pipes-with-ahn\/","title":{"rendered":"Monitor safe location of pipes with AHN"},"content":{"rendered":"<p>NEO has recently won a new assignment to analyse the changes to the ground level above the gas transport pipelines for Gasunie. For this purpose, the latest version of the General Height Database of the Netherlands, the AHN4, is used, among other things. The monitoring of changes in depth is important for monitoring the undisturbed location of the pipelines.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"459\" src=\"https:\/\/neo.nl\/wp-content\/uploads\/2021\/06\/AHN4b.png\" alt=\"\" class=\"wp-image-3763\" srcset=\"https:\/\/www.neo.nl\/wp-content\/uploads\/2021\/06\/AHN4b.png 550w, https:\/\/www.neo.nl\/wp-content\/uploads\/2021\/06\/AHN4b-300x250.png 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><figcaption><em>AHN<\/em>4 <em>map sheets published in 2021<\/em><\/figcaption><\/figure>\n\n\n\n<p>Gasunie transports natural gas, green gas and hydrogen using gas transmission pipelines. One aspect of ensuring safe location and controlling risks is checking the coverage of gas transport pipelines. The cover is the difference between ground level and the depth of the pipeline (which is known) and is an important parameter in the assessment of risks to the pipeline and the surrounding area, such as external safety. Coverage is calculated by comparing the measured depth of the pipelines with recent ground level data.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"643\" height=\"398\" src=\"https:\/\/neo.nl\/wp-content\/uploads\/2021\/06\/Dwarsprofiel-Gasunie.png\" alt=\"\" class=\"wp-image-3764\" srcset=\"https:\/\/www.neo.nl\/wp-content\/uploads\/2021\/06\/Dwarsprofiel-Gasunie.png 643w, https:\/\/www.neo.nl\/wp-content\/uploads\/2021\/06\/Dwarsprofiel-Gasunie-300x186.png 300w\" sizes=\"auto, (max-width: 643px) 100vw, 643px\" \/><\/figure>\n\n\n\n<p>The value of the ground level is determined by the Algemeen Hoogtebestand Nederland (AHN4), supplemented by Gasunie surveying field measurements. The quality of AHN4 also offers the possibility to determine the profile of dry ditches. This will reduce the amount of additional field measurements.<\/p>\n\n\n\n<p>Monitoring coverage in this way provides quick insight into changes in ground level over time over the long pipeline routes, and enables Gasunie to work in a risk-driven way and shape pipeline management efficiently.<\/p>","protected":false},"excerpt":{"rendered":"<p>NEO has recently won a new assignment to analyse the changes to the ground level above the gas transport pipelines for Gasunie. For this purpose, the latest version of the General Height Database of the Netherlands, the AHN4, is used, among other things. Monitoring changes to the depth position is important for monitoring the undisturbed location of the [...]<\/p>","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[23],"tags":[],"class_list":["post-3762","post","type-post","status-publish","format-standard","hentry","category-nieuws"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bewaken veilige ligging leidingen met AHN - NEO<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.neo.nl\/en\/monitoring-safe-location-of-pipes-with-ahn\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bewaken veilige ligging leidingen met AHN - NEO\" \/>\n<meta property=\"og:description\" content=\"Recent heeft NEO de nieuwe opdracht verworven om voor Gasunie de veranderingen aan het maaiveld boven de gastransportleidingen te analyseren. Hiervoor wordt onder andere gebruik gemaakt van de laatste versie van het Algemeen Hoogtebestand Nederland, het AHN4. 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