{"id":57,"date":"2023-06-01T17:28:56","date_gmt":"2023-06-01T09:28:56","guid":{"rendered":"http:\/\/www.hkarb.com\/en\/?page_id=57"},"modified":"2023-06-12T12:02:47","modified_gmt":"2023-06-12T04:02:47","slug":"tunnel-underground-rock-fracturing","status":"publish","type":"page","link":"http:\/\/www.hkarb.com\/en\/ongoing-projects\/tunnel-underground-rock-fracturing","title":{"rendered":"Tunnel Underground Rock Fracturing"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"57\" class=\"elementor elementor-57\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-23e9e8f4 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"23e9e8f4\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column 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class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1989ef4f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1989ef4f\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-narrow\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6276b2fb\" data-id=\"6276b2fb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-218e54e0 elementor-hidden-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"218e54e0\" data-element_type=\"section\" data-settings=\"{&quot;motion_fx_motion_fx_scrolling&quot;:&quot;yes&quot;,&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:114,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;],&quot;sticky_offset_tablet&quot;:144,&quot;motion_fx_devices&quot;:[&quot;desktop&quot;,&quot;tablet&quot;],&quot;animation&quot;:&quot;fadeInDown&quot;,&quot;sticky_effects_offset&quot;:0}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-1a13be2e\" data-id=\"1a13be2e\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6e9267a1 elementor-widget elementor-widget-heading\" data-id=\"6e9267a1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.11.3 - 07-03-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h3 class=\"elementor-heading-title elementor-size-default\">Ongoing Projects<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f0c9dc elementor-widget elementor-widget-shortcode\" data-id=\"6f0c9dc\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><div id='iksm-268' class='iksm iksm-268 iksm-container '  data-id='268' data-is-pro='0' data-source='menu'><div class='iksm-terms'><div class='iksm-terms-tree iksm-terms-tree--level-1 iksm-terms-tree--parents' style=''><div class=\"iksm-terms-tree__inner\">\n        <div class=\"iksm-term iksm-term--id-109 iksm-term--parent\" data-id=\"109\">\n            <div class=\"iksm-term__inner\" tabindex='0'>\n                <a class=\"iksm-term__link\" href='http:\/\/www.hkarb.com\/en\/ongoing-projects\/open-pit-mining' target='_self' tabindex='-1'>\n\t\t\t\t        <span class=\"iksm-term__text\">Open-pit Mining<\/span>\n\t\t            <\/a>\n\t\t\t        <\/div>\n\t\t        <\/div>\n\n\t\t\n        <div class=\"iksm-term iksm-term--id-110 iksm-term--parent\" data-id=\"110\">\n            <div class=\"iksm-term__inner\" tabindex='0'>\n                <a class=\"iksm-term__link\" href='http:\/\/www.hkarb.com\/en\/ongoing-projects\/reef-rock-fracturing' target='_self' tabindex='-1'>\n\t\t\t\t        <span class=\"iksm-term__text\">Reef Rock Fracturing<\/span>\n\t\t            <\/a>\n\t\t\t        <\/div>\n\t\t        <\/div>\n\n\t\t\n        <div class=\"iksm-term iksm-term--id-111 iksm-term--parent\" data-id=\"111\">\n            <div class=\"iksm-term__inner\" tabindex='0'>\n                <a class=\"iksm-term__link\" href='http:\/\/www.hkarb.com\/en\/ongoing-projects\/tunnel-underground-rock-fracturing' target='_self' tabindex='-1'>\n\t\t\t\t        <span class=\"iksm-term__text\">Tunnel Underground Rock Fracturing<\/span>\n\t\t            <\/a>\n\t\t\t        <\/div>\n\t\t        <\/div>\n\n\t\t<\/div><\/div><\/div><div 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elementor - v3.11.3 - 07-03-2023 *\/\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<p><span>The proportion of tunnel projects in the transportation network is increasing, and with complex geological conditions and construction environments, the construction of tunnel projects is growing in both quantity and strictness of construction requirements. In order to fundamentally improve the construction of tunnel projects in our country, it is necessary to achieve mechanization in tunnel construction. The integration of mechanization with construction techniques and construction processes is an inevitable trend in the development of tunnel projects.<\/span><\/p><p><span>Our company has accumulated years of experience in gas expansion construction in hard rock conditions and has developed specialized techniques for tunnel excavation projects that involve hard rock and cannot use explosives. These techniques ensure project progress while protecting the environment, minimizing the impact on natural ecosystems caused by tunnel and underground construction.<\/span><\/p><p><span>The combination of mechanization and specialization in construction addresses the need to replace manual operations as the main approach, ensuring safety and quality, and resolving labor-intensive work patterns.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c1aee04 elementor-widget elementor-widget-heading\" data-id=\"6c1aee04\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">The advantages of gas expansion rock breaking include<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a465d4 elementor-widget elementor-widget-text-editor\" data-id=\"a465d4\" 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<ol><li><span> Accelerating Construction Progress: Gas expansion rock breaking can be used when explosives are not available, allowing for continuous construction progress. It enables efficient and timely excavation without relying on traditional explosive methods.<\/span><\/li><li><span> Stepwise Excavation: Gas expansion rock breaking can be implemented through stepwise excavation based on the site conditions of the tunnel. This involves horizontal drilling on the upper level and gas fracturing on the horizontal platform, mainly addressing the sealing of horizontal platform blast holes. This approach optimizes the excavation process and improves efficiency.<\/span><\/li><li><span> Optimal Drilling Angle and Placement: Gas expansion rock breaking requires determining the best angle and direction for drilling and placing flexible fracturing tubes based on the specific site conditions of the tunnel. This ensures the effectiveness of the gas expansion process and enhances the overall rock breaking efficiency.<br \/><br \/><\/span>Overall, gas expansion rock breaking offers a safe, efficient, and flexible alternative for rock excavation in situations where explosives are not feasible or desirable<\/li><\/ol>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e9b0ce3 elementor-widget elementor-widget-heading\" data-id=\"3e9b0ce3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Project Introduction<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-428bd194 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"428bd194\" data-element_type=\"section\" 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src=\"http:\/\/www.hkarb.com\/en\/wp-content\/uploads\/sites\/2\/2023\/06\/project-014.jpg\" class=\"attachment-full size-full wp-image-300\" alt=\"\" srcset=\"http:\/\/www.hkarb.com\/en\/wp-content\/uploads\/sites\/2\/2023\/06\/project-014.jpg 1024w, http:\/\/www.hkarb.com\/en\/wp-content\/uploads\/sites\/2\/2023\/06\/project-014-300x193.jpg 300w, http:\/\/www.hkarb.com\/en\/wp-content\/uploads\/sites\/2\/2023\/06\/project-014-768x495.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-74ede3e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"74ede3e\" 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alt=\"\" srcset=\"http:\/\/www.hkarb.com\/en\/wp-content\/uploads\/sites\/2\/2023\/06\/project-015.jpg 1024w, http:\/\/www.hkarb.com\/en\/wp-content\/uploads\/sites\/2\/2023\/06\/project-015-300x193.jpg 300w, http:\/\/www.hkarb.com\/en\/wp-content\/uploads\/sites\/2\/2023\/06\/project-015-768x495.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Ongoing Projects Working Principle The proportion  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