{"id":9933,"date":"2026-07-02T10:00:00","date_gmt":"2026-07-02T08:00:00","guid":{"rendered":"https:\/\/www.optimum-te.com\/?p=9933"},"modified":"2026-07-02T13:52:35","modified_gmt":"2026-07-02T11:52:35","slug":"double-microtunnel-engineering-beyond-the-obvious","status":"publish","type":"post","link":"https:\/\/www.optimum-te.com\/en\/water-en\/double-microtunnel-engineering-beyond-the-obvious\/","title":{"rendered":"Double microtunnel : Engineering beyond the obvious"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p><strong>When you\u2019ve got 350 metres of gravity flow pipeline to install under road and rail\u2026<\/strong><\/p>\n<p style=\"padding-left: 40px;\"><strong>\u2026 and the ground is too rocky for HDD\u2026<\/strong><br \/><strong>\u2026 and the distance is beyond the limits of auger boring\u2026<\/strong><br \/><strong>\u2026 all the site is in the middle of a business park\u2026<\/strong><\/p>\n<p><strong>\u00a0You sometimes need to rethink your approach.<\/strong><\/p>\n<p>So, you sink an 11-metre-deep secant pile shaft and use it as the central launch shaft for two microtunnels \u2014 one heading east, the other heading west.<\/p>\n<p>That\u2019s what SUBTERRA has just completed for the regional water authority SIVOM SAGe in southern France.<\/p>\n<p>Before construction began, the preparatory phase set the tone with great collaboration between SUBTERRA and OPTIMUM, ensuring the microtunnel engineering was validated by specialists and perfectly aligned with the project\u2019s constraints.<\/p>\n<p>The new microtunnels will now connect SIVOM SAGe\u2019s water treatment plant to a brand-new research facility, strengthening the backbone of its network.<\/p>\n<p>The right solution isn\u2019t always the easiest one, but the one that truly works.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The right solution isn\u2019t always the easiest one, but the one that truly works.<\/p>\n","protected":false},"author":2,"featured_media":9929,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"categories":[46],"tags":[77],"class_list":["post-9933","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-water-en","tag-microtunnelling-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - 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