{"id":3409,"date":"2019-06-02T11:03:20","date_gmt":"2019-06-02T09:03:20","guid":{"rendered":"https:\/\/www.ecoshape.org\/en\/projects\/sand-nourishment-sand-engine-onrustgeul-nl\/"},"modified":"2020-10-21T08:13:48","modified_gmt":"2020-10-21T06:13:48","slug":"sand-nourishment-sand-engine-onrustgeul-nl","status":"publish","type":"project","link":"https:\/\/www.ecoshape.org\/en\/cases\/sand-nourishment-sand-engine-onrustgeul-nl\/","title":{"rendered":"Sand Engine &#8211; Onrustgeul"},"content":{"rendered":"\n<p><strong>Location<\/strong>: Zeeland, The Netherlands<br> <strong>Date<\/strong>: 2010<br> <strong>Involved parties<\/strong>: EcoShape, Deltares, Rijkswaterstaat, TU Delft, DHV<\/p>\n\n\n\n<p><strong>Technology Readiness Level:&nbsp; <\/strong>2 \u2013 technology concept formulated<br><strong>Environment:<\/strong> Lakes<\/p>\n\n\n\n<p><strong>Keywords<\/strong>: Building by nature, Morphological studies, Impact assessment, Channel dredging, Estuary protection.<\/p>\n\n\n<div id=\"before-after-block_5f69cf65bdf82\" class=\"block-before-after-inner\">\n\n    \n    <div class=\"block-before-after-column\">\n        <div class=\"block-before-after-title\">Building with Nature design<\/div>\n\n                    <div class=\"block-before-after-figure\">\n                <img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"180\" src=\"https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/concept_zm-300x180.jpg\" class=\"attachment-medium size-medium\" alt=\"Onrustgeul\" srcset=\"https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/concept_zm-300x180.jpg 300w, https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/concept_zm-1024x616.jpg 1024w, https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/concept_zm-768x462.jpg 768w, https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/concept_zm-1200x721.jpg 1200w, https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/concept_zm.jpg 1314w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>            <\/div>\n        \n        <div class=\"block-before-after-body\">\n            <p>Large scale nourishments in deeper areas of the Onrust channel that aid the natural shoreward movement of the Onrust shoal in the long term and provide short term relief to the sand-starved coastline.<\/p>\n        <\/div>\n    <\/div>\n    <div class=\"block-before-after-column\">\n        <div class=\"block-before-after-title\">Traditional design<\/div>\n                    <div class=\"block-before-after-figure\">\n                <img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/strandsuppletie-300x225.jpg\" class=\"attachment-medium size-medium\" alt=\"\" srcset=\"https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/strandsuppletie-300x225.jpg 300w, https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/strandsuppletie.jpg 480w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>            <\/div>\n                <div class=\"block-before-after-body\">\n            <p>Maintenance and strengthening of the coastline by means of beach nourishments, or channel nourishments and reinforcing sea defenses. Although such methods are well tested, the financial and social costs are becoming increasingly prohibitive. <\/p>\n        <\/div>\n    <\/div>\n\n<\/div>\n\n<style type=\"text\/css\">\n    .block-before-after-inner {\n        display: grid;\n        grid-template-columns: repeat(1, 1fr);\n        column-gap: 1px;\n        row-gap: 1em;\n    }\n\n    @media (min-width: 992px) {\n        .block-before-after-inner {\n            grid-template-columns: repeat(2, 1fr);\n        }\n    }\n\n    .block-before-after-title {\n        background-color: #7FAFC8;\n        color: #fff;\n        font-weight: bold;\n        margin-bottom: 1px;\n    }\n\n    .block-before-after-title,\n    .block-before-after-body {\n        padding: 10px 15px;\n    }\n\n    .block-before-after-figure {\n        height: 220px;\n    }\n\n    .block-before-after-column img {\n        height: 100%;\n        object-fit: cover;\n        width: 100%;\n    }\n\n    .block-before-after-body {\n        font-size: 16px;\n    }\n\n<\/style>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-abstract\">Abstract<\/h2>\n\n\n\n<p>An innovative sand engine design was proposed to counter structural erosion of the coast at Onrustpolder. The design of the sand engine was examined using a numerical model.<\/p>\n\n\n\n<p>The object of this project is to design and evaluate a sustainable solution to the ongoing coastal erosion at Onrustpolder. Current practice is to counter the erosion by means of frequent beach nourishments. Due to the increasing financial and societal costs of this method of coastline management, an alternative sustainable solution is required.<\/p>\n\n\n\n<p>The coast at Onrustpolder, Zeeland has been subject to structural erosion for approximately the past 40 years. This erosion is principally caused by the migration of the Onrust tidal channel towards the coast at Onrustpolder. In the past the coastline has been nourished by frequent beach nourishments to compensate for the structural erosion problem.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.ecoshape.org\/app\/uploads\/sites\/2\/2020\/05\/overview_sm.jpg\" alt=\"\"\/><figcaption><em>&nbsp;&nbsp; Location of the dominant tidal channels surrounding the Onrustpolder coast.<\/em><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Location: Zeeland, The Netherlands Date: 2010 Involved parties: EcoShape, Deltares, Rijkswaterstaat, TU Delft, DHV Technology Readiness Level:&nbsp; Environment: Keywords: Building by nature, Morphological studies, Impact assessment, Channel dredging, Estuary protection. Abstract An innovative sand engine design was proposed to counter structural erosion of the coast at Onrustpolder. The design of the sand engine was examined [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2193,"parent":0,"menu_order":0,"template":"","landscape":[36],"technology-readiness_-level":[25],"class_list":["post-3409","project","type-project","status-publish","has-post-thumbnail","hentry","landscape-lakes","technology-readiness_-level-2-technology-concept-formulated"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Sand Engine - Onrustgeul - EcoShape<\/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.ecoshape.org\/en\/cases\/sand-nourishment-sand-engine-onrustgeul-nl\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sand Engine - Onrustgeul\" \/>\n<meta property=\"og:description\" content=\"Location: Zeeland, The Netherlands Date: 2010 Involved parties: EcoShape, Deltares, Rijkswaterstaat, TU Delft, DHV Technology Readiness Level:&nbsp; Environment: Keywords: Building by nature, Morphological studies, Impact assessment, Channel dredging, Estuary protection. 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