{"id":703,"date":"2020-07-01T07:12:22","date_gmt":"2020-07-01T07:12:22","guid":{"rendered":"http:\/\/proserveltd.co.uk\/?post_type=solutions&p=703"},"modified":"2023-07-19T10:55:40","modified_gmt":"2023-07-19T10:55:40","slug":"underscour-repairs","status":"publish","type":"solutions","link":"https:\/\/proserveltd.co.uk\/solutions\/underscour-repairs\/","title":{"rendered":"Underscour Repairs"},"content":{"rendered":"\t\t
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Underscour<\/h1>

Structures in contact with flowing water or waves can experience scour of their foundations over time.\u00a0 If the scour is permitted to continue, it can cause a number of issues:<\/p>

  • Undermine the structure<\/li>
  • Cause excessive settlement<\/li>
  • Loss of fill material<\/li>
  • Collapse of the structure<\/li><\/ul>

    Commonly used methods for filling scour holes often mask the problem without providing a permanent solution.\u00a0 Stacked concrete bags or rock bags placed in and around a void may prevent additional scour, but they do not prevent the loss of further fill material or provide guaranteed support to the undermined foundation.<\/p>

    Grouted Repair<\/h1>

    Underpinning grout bags can fully fill a void with mass structural concrete, preventing further scour, halting losses of fill material and critically providing support to the undermined structure.<\/p>

    The mass concrete fill cannot be plucked out of the void by high currents or wave impact pressures, resulting in a permanent repair so long as the bed is prevented from scouring below the filled grout bag.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Installation<\/h1>

    Underpinning grout bags are pushed into the void, restrained in position and pump filled in tremie fashion until a back pressure of 10 kPa is generated. This back pressure ensures that the fabric fully fills the void and achieves guaranteed soffit contact on the underside of the void for a complete structural repair.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Advantages<\/span><\/h1>

    Underpinning grout bags:<\/p>

    • Fully fill the void with a permanent repair<\/li>
    • Guarantee full soffit contact for structural underpinning<\/li>
    • Achieve high durability concrete<\/li>
    • Can be combined with concrete mattress to avoid future scour beneath the grout bag repair<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"featured_media":1984,"parent":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"solution_categories":[10],"acf":[],"yoast_head":"\nUnderscour Repairs - 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