{"id":1257,"date":"2018-04-13T09:22:23","date_gmt":"2018-04-13T09:22:23","guid":{"rendered":"http:\/\/puntabegonagaleriak.eus\/?page_id=1257"},"modified":"2018-04-13T09:23:15","modified_gmt":"2018-04-13T09:23:15","slug":"d10","status":"publish","type":"page","link":"https:\/\/puntabegonagaleriak.eus\/en\/d10\/","title":{"rendered":"d10"},"content":{"rendered":"<p>[vc_row][vc_column width=&#8221;1\/1&#8243;][vc_custom_heading heading_semantic=&#8221;h1&#8243; text_size=&#8221;h1&#8243;]<strong>D.10<\/strong> VERTICAL LIMIT[\/vc_custom_heading][vc_column_text]<\/p>\n<p class=\"p1\"><span class=\"s1\">One of the aspects that strikes as being most unique about the Punta Bego\u00f1a Galleries is that they were built directly onto a steeply sloping cliffside. Although coastal cliffs are normally composed of strong rocky materials, their possible erosion over time needs to be monitored. A notable example of the effects this erosion may have is the recent collapse of Malta\u2019s Azure Window formation.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">Precisely in order to monitor the cliff\u2019s stability, we have conducted an inclinometer survey that allows us to measure any horizontal movement on slopes and unstable ground.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">At Punta Bego\u00f1a, when we saw how distorted the walls were in the north-west gallery we decided to implement a control programme. To do so, we sank a vertical borehole (a drilling) in the garden.<\/span><span class=\"s2\">\u00a0<\/span><span class=\"s1\">It is important to choose the right place for the borehole, and its depth should be more than sufficient to reach down to the layer where the ground is most definitely stable.<\/span><span class=\"s2\">\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">We inserted an inclinometer tube into the borehole, making sure the lower end was fully waterproofed. This tube has four lengthwise grooves that are set at 90<\/span><span class=\"s3\"><sup>o<\/sup><\/span><span class=\"s1\"><b> <\/b>from each other. They are the guides that the measuring device will use to move up and down, and we call it a probe or torpedo: the device can measure movements to an accuracy of a hundredth of a millimetre. The torpedo is connected to a terminal that gathers the data obtained from the regular readings we take throughout the year. This enables us to measure any possible change in the slope.<\/span><\/p>\n<p>[\/vc_column_text][vc_empty_space empty_h=&#8221;1&#8243;][vc_single_image media=&#8221;526&#8243; media_width_percent=&#8221;100&#8243;][vc_column_text el_class=&#8221;caption&#8221;]Postcard of Ereaga Beach with the barren cliff at Punta Bego\u00f1a in the background, 1904. Source: San Nicol\u00e1s Library[\/vc_column_text][vc_single_image media=&#8221;527&#8243; media_width_percent=&#8221;100&#8243;][vc_single_image media=&#8221;528&#8243; media_width_percent=&#8221;100&#8243;][vc_column_text el_class=&#8221;caption&#8221;]Stages in the deployment of the inclinometer probe: drilling (top left), extracting a rock core sample (top right) and taking an inclinometer reading (bottom), 2016. Source: Project for showcasing the Punta Bego\u00f1a Galleries[\/vc_column_text][vc_single_image media=&#8221;529&#8243; media_width_percent=&#8221;100&#8243;][vc_column_text el_class=&#8221;caption&#8221;]Damaged wall in the south-west gallery, 2016. Source: Project for showcasing the Punta Bego\u00f1a Galleries[\/vc_column_text][vc_custom_heading]For more information on this topic, visit the following points:[\/vc_custom_heading][vc_raw_html]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[\/vc_raw_html][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column width=&#8221;1\/1&#8243;][vc_custom_heading heading_semantic=&#8221;h1&#8243; text_size=&#8221;h1&#8243;]D.10 VERTICAL LIMIT[\/vc_custom_heading][vc_column_text] One of the aspects that strikes as being most unique about the Punta Bego\u00f1a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-rutad.php","meta":[],"_links":{"self":[{"href":"https:\/\/puntabegonagaleriak.eus\/en\/wp-json\/wp\/v2\/pages\/1257"}],"collection":[{"href":"https:\/\/puntabegonagaleriak.eus\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/puntabegonagaleriak.eus\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/puntabegonagaleriak.eus\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/puntabegonagaleriak.eus\/en\/wp-json\/wp\/v2\/comments?post=1257"}],"version-history":[{"count":2,"href":"https:\/\/puntabegonagaleriak.eus\/en\/wp-json\/wp\/v2\/pages\/1257\/revisions"}],"predecessor-version":[{"id":1259,"href":"https:\/\/puntabegonagaleriak.eus\/en\/wp-json\/wp\/v2\/pages\/1257\/revisions\/1259"}],"wp:attachment":[{"href":"https:\/\/puntabegonagaleriak.eus\/en\/wp-json\/wp\/v2\/media?parent=1257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}