{"id":6258,"date":"2025-09-19T08:24:31","date_gmt":"2025-09-19T08:24:31","guid":{"rendered":"https:\/\/www.huggenberger.com\/?page_id=6258"},"modified":"2025-09-19T08:24:31","modified_gmt":"2025-09-19T08:24:31","slug":"rock-cliff-monitoring-dornisporn-switzerland","status":"publish","type":"page","link":"https:\/\/www.huggenberger.com\/fr\/case-studies\/rock-cliff-monitoring-dornisporn-switzerland\/","title":{"rendered":"Rock cliff monitoring Dornisporn, Switzerland"},"content":{"rendered":"<div class=\"vc_row wpb_row vc_row-fluid bg-image-ps-inherit\"><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-4 vc_col-md-4 rm-padding-lg\"><div class=\"vc_column-inner vc_custom_1565687724699\"><div class=\"wpb_wrapper\">\r\n\t<div class=\"wpb_text_column wpb_content_element\" >\r\n\t\t<div class=\"wpb_wrapper\">\r\n\t\t\t<p><strong>Country:<\/strong>\u00a0Switzerland<br \/>\n<strong>Location:<\/strong> Sisikon, Zurich Switzerland<br \/>\n<strong>Customer:<\/strong> ASTRA, Swiss Federal Roads Office<br \/>\n<strong>Start:<\/strong> 2021<br \/>\n<strong>End:<\/strong> On going<\/p>\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-8 vc_col-md-8 rm-padding-lg\"><div class=\"vc_column-inner vc_custom_1565687737685\"><div class=\"wpb_wrapper\"><div id=\"cms-heading\" class=\"cms-heading align-left align-left-md align-left-sm align-left-xs\">\r\n    \r\n    <div class=\"cms-inline-css\"  data-css=\"                    @media (min-width: 991px) and (max-width: 1199px) {                #cms-heading .cms-heading-tag {                                            font-size: 32px !important;                                                        }            }                            @media (min-width: 768px) and (max-width: 991px) {                #cms-heading .cms-heading-tag {                                            font-size: 32px !important;                                                        }            }                            @media screen and (max-width: 767px) {                #cms-heading .cms-heading-tag {                                            font-size: 32px !important;                                                        }            }                \">\r\n    <\/div>\r\n    \r\n        <h2 class=\"cms-heading-tag\" style=\"font-size:32px; \">\r\n                                    Monitoring the stability of a rock cliff on a Swiss road and rail route                        <\/h2>\r\n            <\/div><div class=\"vc_empty_space\"   style=\"height: 21px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"cms-text-block1 text-left  fw-400\" style=\"font-size:16px;line-height:26px;\">\r\n    <\/div><div class=\"vc_empty_space\"   style=\"height: 60px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\r\n\r\n    <div class=\"features-layout3\">\r\n                    <div class=\"features-item\">\r\n                <h3 class=\"features-title\">The Challenge<\/h3>\r\n                <div class=\"features-content\">\r\n                    The Swiss trans-alpine Gotthard railway is a key part of the rail network linking north and south Europe. Carrying passengers through the Gotthard Base Tunnel, which opened in 2016 and is the world\u2019s longest and deepest rail tunnel, the line carries more than 10,000 people and 67,000 tonnes of freight a day.Near the small town of Sisikon, on the banks of Lake Lucerne, the rail line and an important road connecting northern Switzerland with the south part both pass underneath a 120-meter overhang. The feature is impressive and potentially dangerous should rocks fall onto the tracks and road below. With some sections having proved to be unstable, it was vital to secure the cliff and monitor it for possible movements.                <\/div>\r\n            <\/div>\r\n                    <div class=\"features-item\">\r\n                <h3 class=\"features-title\">The Solution<\/h3>\r\n                <div class=\"features-content\">\r\n                    The rock face was stabilized with nets secured by rock bolts. A part of the rock cliff has been reinforced with an anchored concrete support structure. During the stabilization work, four boreholes to a depth of 20 meters were drilled to fit three-point borehole extensometers. Four ground anchor load cells were also fitted into the rock face monitoring system. \nBecause of the difficulty in accessing the site, the Swiss engineering structure monitoring specialist Huggenberger, part of the advanced geotechnical instrumentation leader Sisgeo, opted to install a wireless data collection solution from Worldsensing. Each extensometer is fitted with an analog four-channel node and every anchor load cell is connected to a Worldsensing Piconode, a one channel \u201cmini node\u201d. The nodes send data to a solar-powered, wireless gateway located beyond line of sight on a tunnel entrance wall.\nThe entire monitoring network and devices are monitored and managed through CMT Edge, an on-premise network management tool, capable of showing the status and health of all devices across the Worldsensing network and in turn is connected to the Huggenberger-Monitor analysis system via API.\n\n                <\/div>\r\n            <\/div>\r\n                    <div class=\"features-item\">\r\n                <h3 class=\"features-title\">The Results<\/h3>\r\n                <div class=\"features-content\">\r\n                    The wireless monitoring solution entered operation in October 2021 and feeds data every two hours to a Huggenberger-Monitor analysis system that can be accessed by the Swiss Federal Roads Office. Using Worldsensing technology for wireless data collection offers many advantages. Installation is easier and more cost effective without cables, for example. And there is no risk that sensor data could be lost because of damaged cables, which could happen due to rock falls or animals.\nThe risk of damage from animals is particularly acute in this region, which is why Piconodes were used instead of four-channel nodes to connect the load cells even though the sensors were only 20 meters apart. Although the reliance on solar power can hamper communications in winter, Worldsensing\u2019s use of low-power, wide-area (LPWAN), long-range (LoRa) technology means there is practically no loss of data at other times, providing reassurance that all is well on the pass.\n                <\/div>\r\n            <\/div>\r\n                    <div class=\"features-item\">\r\n                <h3 class=\"features-title\"><\/h3>\r\n                <div class=\"features-content\">\r\n                    Thanks to Daniel Naterop \u2013 Huggenberger PM                <\/div>\r\n            <\/div>\r\n            <\/div>\r\n\r\n<div class=\"vc_empty_space\"   style=\"height: 60px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid bg-image-ps-inherit\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\r\n<div class=\"vc_grid-container-wrapper vc_clearfix\">\r\n\t<div class=\"vc_grid-container vc_clearfix wpb_content_element vc_masonry_media_grid\" data-initial-loading-animation=\"zoomIn\" data-vc-grid-settings=\"{&quot;page_id&quot;:6258,&quot;style&quot;:&quot;all-masonry&quot;,&quot;action&quot;:&quot;vc_get_vc_grid_data&quot;,&quot;shortcode_id&quot;:&quot;1758270189271-c71f4ad7acae787369ceade070b0744b-6&quot;,&quot;tag&quot;:&quot;vc_masonry_media_grid&quot;}\" data-vc-request=\"https:\/\/www.huggenberger.com\/wp-admin\/admin-ajax.php\" data-vc-post-id=\"6258\" data-vc-public-nonce=\"a462969e35\">\r\n\t\t\r\n\t<\/div>\r\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"Country:\u00a0Switzerland Location: Sisikon, Zurich Switzerland Customer: ASTRA, Swiss Federal Roads Office Start: 2021 End: On going Monitoring the stability of a rock cliff on a Swiss road and rail route The Challenge The Swiss trans-alpine Gotthard railway is a key part of the rail network linking north and south Europe. Carrying passengers through the Gotthard [...]","protected":false},"author":5,"featured_media":6398,"parent":1623,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6258","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rock cliff monitoring Dornisporn, Switzerland - Huggenberger<\/title>\n<meta name=\"description\" content=\"Huggenberger has provided the installation of a measuring system to monitor the stability of the rock mass close to the Piz Nair summit.\" \/>\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.huggenberger.com\/fr\/case-studies\/rock-cliff-monitoring-dornisporn-switzerland\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rock cliff monitoring Dornisporn, Switzerland - 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