{"id":2532,"date":"2022-04-08T10:23:22","date_gmt":"2022-04-08T10:23:22","guid":{"rendered":"https:\/\/nakshaa.in\/?page_id=2532"},"modified":"2022-05-05T15:57:54","modified_gmt":"2022-05-05T15:57:54","slug":"contour-survey","status":"publish","type":"page","link":"https:\/\/nakshaa.in\/index.php\/contour-survey\/","title":{"rendered":"CONTOUR SURVEY"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2532\" class=\"elementor elementor-2532\" data-elementor-settings=\"[]\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-20f1c3a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"20f1c3a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f706655\" data-id=\"f706655\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e1da70f elementor-widget elementor-widget-text-editor\" data-id=\"e1da70f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.5.5 - 03-02-2022 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#818a91;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#818a91;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p><strong>CONTOUR SURVEY:<\/strong><\/p><p><strong>Contour line<\/strong><\/p><p>The line of intersection of a level surface with the ground surface is known as the contour line or simply the contour. It can also be defined as a line passing through points of equal reduced levels.<\/p><p>For example, a contour of 100 m indicates that all the points on this line have an RL of 100 m. Similarly, in a contour of 99 m, all points have an RL of 99 m, A map showing only the contour lines of an area is called a contour map.<\/p><p><strong>Horizontal equivalent<\/strong><\/p><p>The horizontal distance between any two consecutive contours is known as horizontal equivalent. It is not constant. It varies according to the steepness of the ground. For steep slopes, the contour lines run close together, and for flatter slope\u2019s they are widely.<\/p><p><strong>Object of Preparing Contour Map<\/strong><\/p><p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong>The general map of a country includes the locations of roads, railways, rivers, villages, towns, and so on. But the nature of the ground surface cannot be realized, from such a map.<\/p><p>However, for all engineering projects involving roads, railways, and so on, knowledge of the nature of ground surface is required for locating suitable alignments and estimating the volume of earth work.<\/p><p>The process of tracing contour lines on the surface of earth is called contouring. A contour map gives the idea of the altitudes of the surface features as well as their relative positions in a plan.<\/p><ul><li>\u00a0<\/li><\/ul>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-4959333\" data-id=\"4959333\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6e22c10 elementor-widget elementor-widget-image\" data-id=\"6e22c10\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.5.5 - 03-02-2022 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"638\" height=\"479\" src=\"https:\/\/nakshaa.in\/wp-content\/uploads\/2022\/04\/WhatsApp-Image-2022-04-06-at-8.13.57-PM-3.jpeg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/nakshaa.in\/wp-content\/uploads\/2022\/04\/WhatsApp-Image-2022-04-06-at-8.13.57-PM-3.jpeg 638w, https:\/\/nakshaa.in\/wp-content\/uploads\/2022\/04\/WhatsApp-Image-2022-04-06-at-8.13.57-PM-3-300x225.jpeg 300w\" sizes=\"(max-width: 638px) 100vw, 638px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e82a7ac elementor-widget elementor-widget-text-editor\" data-id=\"e82a7ac\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p><strong>Uses of Contour Maps<\/strong><\/p><p>The following is the specific uses of the contour map:<\/p><ul><li>The nature of the ground surface of a country can be understood by studying a contour map. Hence, the possible route of communication between different places can be demarcated.<\/li><li>A suitable, site or an economical alignment can be selected for any engineering project.<\/li><li>The capacity of a reservoir or the area of a catchment can be approximately computed.<\/li><li>The indivisibility or otherwise of different points can be established.<\/li><li>A suitable route for a given gradient can be marked on the map.<\/li><li>A section of the ground surface can be drawn in any direction from the contour map.<\/li><\/ul>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>CONTOUR SURVEY: Contour line The line of intersection of a level surface with the ground surface is known as the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/nakshaa.in\/index.php\/wp-json\/wp\/v2\/pages\/2532"}],"collection":[{"href":"https:\/\/nakshaa.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nakshaa.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nakshaa.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nakshaa.in\/index.php\/wp-json\/wp\/v2\/comments?post=2532"}],"version-history":[{"count":8,"href":"https:\/\/nakshaa.in\/index.php\/wp-json\/wp\/v2\/pages\/2532\/revisions"}],"predecessor-version":[{"id":4886,"href":"https:\/\/nakshaa.in\/index.php\/wp-json\/wp\/v2\/pages\/2532\/revisions\/4886"}],"wp:attachment":[{"href":"https:\/\/nakshaa.in\/index.php\/wp-json\/wp\/v2\/media?parent=2532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}