{"id":24453,"date":"2016-03-31T17:58:00","date_gmt":"2016-03-31T08:58:00","guid":{"rendered":"https:\/\/www.ejec.ej-hds.co.jp\/web\/?p=24453"},"modified":"2025-09-25T09:45:19","modified_gmt":"2025-09-25T00:45:19","slug":"20130329syamen","status":"publish","type":"post","link":"https:\/\/www.ejec.ej-hds.co.jp\/en\/all\/topics\/20130329syamen\/","title":{"rendered":"Work for Clogged River Channel Site due to a Large-scale Slope Failure"},"content":{"rendered":"\n<img decoding=\"async\" src=\"https:\/\/www.ejec.ej-hds.co.jp\/web\/wp-content\/uploads\/akatani2.jpg\" alt=\"\" width=\"809\" height=\"422\" class=\"aligncenter\">\n<p style=\"text-align:center;\">Akadani No. 2 Check Dam<\/p>\n\n\n<div class=\"comInfoBox mt4\">\n<p class=\"comText left\">Typhoon No. 12 of 2011 caused a number of large-scale slope failures in the Kii Peninsula, causing massive damages. EJEC was involved in the works to control further damage occurrence through on-site surveying and monitoring the clogged river after slope failure.<br \/>\r\nOur work involved the planning and design of check dams to deal with the clogged river channel in the Akadani District.<\/p>\n<h2 class=\"headLine03 left mb1\">Large-scale slope failure and river channel blockage<\/h2>\n<p class=\"comText left\">With a deep-seated landslide, deep ground forms the sliding surface and the resulting large volume of collapsed sediment can clog the river channel, creating a water covered area in the upstream.<\/p>\n<\/div>\n\n\n\n\t<ul class=\"listUl\">\n\t\t\t\t\t<li>\n\t\t\t\t\t\t\t\t\t<div class=\"comBox\"><img decoding=\"async\" src=\"https:\/\/www.ejec.ej-hds.co.jp\/web\/wp-content\/uploads\/e1559722796750.jpg\" alt=\"\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"c-caption center\">Large-scale slope failure and clogged river channel site<\/p>\n\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t<li>\n\t\t\t\t\t\t\t\t\t<div class=\"comBox\"><img decoding=\"async\" src=\"https:\/\/www.ejec.ej-hds.co.jp\/web\/wp-content\/uploads\/e1559722903695.jpg\" alt=\"\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"c-caption center\">Flooded area due to clogged river channel<\/p>\n\t\t\t\t\t\t\t<\/li>\n\t\t\t<\/ul>\n\n\n<div class=\"comInfoBox\">\n<h2 class=\"headLine03 left mb1\">Akadani No. 2 Check Dam<\/h2>\n<p class=\"comText left mb4\">At the clogged river channel site formed by a large volume of collapsed sediment, it was assumed that the accumulated water held in the upstream could overflow, eroding the clogged site and causing a new collapse.<br \/>\r\nFor this reason, the Akadani No. 2 Check Dam was planned and designed to anchor the leg section of the clogged river channel for stabilization while preventing erosion by an overflow.<br \/>\r\nOf the three planned check dams, the Akadani No. 2 Check Dam to anchor the leg section of the clogged river channel has been completed (March, 2016).<\/p>\n<\/div>\n\n\n\n\n<table style=\"margin-left: auto; margin-right: auto; font-weight: 500;\">\n<tbody>\n<tr>\n<td width=\"25%\" style=\"padding:0.4em; vertical-align: top;\">Work title<\/td>\n<td style=\"padding:0.4em;\">Design Work for Erosion Control Facilities to deal with Landslide Dams in the Akadani District<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:0.4em; vertical-align: top;\">Location<\/td>\n<td style=\"padding:0.4em;\">Shimizu area, Ohto Town, Gojo City, Nara Prefecture<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:0.4em; vertical-align: top;\">Duration<\/td>\n<td style=\"padding:0.4em;\">June 15, 2012 to March 29, 2013<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:0.4em; vertical-align: top;\">Implementing body<\/td>\n<td style=\"padding:0.4em;\">Kii Mountains Erosion Control Office, Kinki Regional Development Bureau, MLIT<\/td>\n<\/tr>\n<\/tbody><\/table>\n","protected":false},"excerpt":{"rendered":"<p>Akadani No. 2 Check Dam Work title Design Work for Erosion Control Facilities to deal with Landslide Dams in the Akadani District Location Shimizu area, Ohto Town, Gojo City, Nara Prefecture Duration June 15, 2012 to March 29, 2013 Implementing body Kii Mountains Erosion Control Office, Kinki Regional Development Bureau, MLIT<\/p>\n","protected":false},"author":8,"featured_media":16699,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/www.ejec.ej-hds.co.jp\/web\/?p=3051","footnotes":""},"categories":[38,37,25],"tags":[],"class_list":["post-24453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-river-harbor","category-geotechnics","category-topics","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/posts\/24453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/comments?post=24453"}],"version-history":[{"count":9,"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/posts\/24453\/revisions"}],"predecessor-version":[{"id":30471,"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/posts\/24453\/revisions\/30471"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/media\/16699"}],"wp:attachment":[{"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/media?parent=24453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/categories?post=24453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ejec.ej-hds.co.jp\/wp-json\/wp\/v2\/tags?post=24453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}