[et_pb_section fb_built=”1″ theme_builder_area=”post_content” _builder_version=”4.27.0″ _module_preset=”default”][et_pb_row _builder_version=”4.27.0″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.27.0″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.0″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″ sticky_enabled=”0″]<\/p>\n
In streets south of Paris, a seemingly ordinary underground construction site. And yet, every day, engineers stopped by to see quite a unique drilling operation …<\/p>\n
<\/p>\n
When renovating the wastewater network in L’Ha\u00ff-les-Roses, one question had project managers scratching their heads: how to connect the existing surface-level wastewater pipes to newly constructed gravity-flow microtunnels 15 meters below ground? After dismissing several potential possibilities, an innovative solution was found: 9 short diagonal boreholes, drilled almost vertically, through the wall of the new microtunnel itself \u2013 a first in France !!<\/p>\n
<\/p>\n
OPTIMUM\u2019s trenchless engineers were then commissioned to monitor the drilling operations. Particular attention was paid to water management, since all the works were being carried out below the water table.<\/p>\n
<\/p>\n
Thanks to great teamwork and efficiency, the whole project was completed in just 5 weeks. The houses can now be connected up to the new, improved network. Congratulations to the whole project team.<\/p>\n
<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"
In streets south of Paris, a seemingly ordinary underground construction site. And yet, every day, engineers stopped by to see quite a unique drilling operation …<\/p>\n","protected":false},"author":2,"featured_media":7049,"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":[51],"class_list":["post-7041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-water-en","tag-auger-boring-en"],"yoast_head":"\n