{"id":922,"date":"2025-09-25T11:19:31","date_gmt":"2025-09-25T09:19:31","guid":{"rendered":"https:\/\/powermining.fi\/?page_id=922"},"modified":"2025-09-29T09:57:57","modified_gmt":"2025-09-29T07:57:57","slug":"kallion-injektointi","status":"publish","type":"page","link":"https:\/\/powermining.fi\/en\/palvelut\/kallion-injektointi\/","title":{"rendered":"Kallion injektointi tunnelirakentamisessa"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Rock grouting is an essential part of safe and sustainable tunnel construction. It is used to reduce the permeability of the rock and improve its sealing properties. The goal is to prevent water <\/span><span style=\"font-weight: 400;\">kulkeminen kalliorakenteen sis\u00e4ll\u00e4, mik\u00e4 pident\u00e4\u00e4 rakenteen k\u00e4ytt\u00f6ik\u00e4\u00e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hyvin injektointu kallio on tehokas ja turvallinen louhia. Injektoinnilla pystyt\u00e4\u00e4n my\u00f6s est\u00e4m\u00e4\u00e4n pohjavedenpinnan laskeminen louhinnan vaikutuksesta.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Injektoinnissa kallioon porattuihin injektointireikiin pumpataan paineella injektointimassaa, joka t\u00e4ytt\u00e4\u00e4 halkeamat ja raot. <\/span><span style=\"font-weight: 400;\">Pumppauksessa aikaansaatu haluttu injektointipaine varmistaa massan levi\u00e4misen suunnitelman mukaisesti. Useimmiten k<\/span><span style=\"font-weight: 400;\">\u00e4ytett\u00e4v\u00e4t injektointiaineet ovat<\/span>\u00a0<span style=\"font-weight: 400;\">hienojakoinen injektointisementti tai erilaiset kemialliset injektointiaineet.<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Eri injektointimenetelm\u00e4t <\/span><span style=\"font-weight: 400;\">ja k\u00e4ytett\u00e4v\u00e4t aineet<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">K\u00e4yt\u00e4mme kohteesta riippuen eri injektointimenetelmi\u00e4 <\/span><span style=\"font-weight: 400;\">ja -aineita.\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Esi-injektointi<\/strong> on rakenteen tiivist\u00e4misen kannalta ehdottomasti t\u00e4rkein vaihe, ja se tehd\u00e4\u00e4n aina ennen tunnelin louhintaa. Tavoitteena on tiivist\u00e4\u00e4 kallio haluttu metrim\u00e4\u00e4r\u00e4 eteenp\u00e4in, jotta rakoilusta ja veden virtaamisesta johtuvia ongelmia ei sattuisi.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>J\u00e4lki-injektoinnilla<\/strong> voidaan lis\u00e4t\u00e4 kallion tiiviytt\u00e4 halutuilla alueilla. Sit\u00e4 tehd\u00e4\u00e4n yleens\u00e4 vain silloin, jos halutaan esimerkiksi tiivist\u00e4\u00e4 yksitt\u00e4isi\u00e4 vuotovesikohtia louhinnan j\u00e4lkeen.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Ensisijainen injektointiaine on l\u00e4hes aina hienojakoinen injektointisementtimassa<\/strong>. Injektointia voidaan suorittaa kuitenkin my\u00f6s kemiallisilla aineilla. T\u00e4ll\u00f6in puhutaan yleisesti kemiallisesta injektoinnista, <\/span><span style=\"font-weight: 400;\">jossa k\u00e4ytett\u00e4v\u00e4 injektointiaine on hartipohjainen. T\u00e4m\u00e4 menetelm\u00e4 soveltuu erityisesti pieniin rakoihin ja nopeaa kovettumista vaativiin kohteisiin, joissa sementtipohjainen injektointi ei riit\u00e4.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Check out our reference projects<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Power Mining tarjoaa kaikki kalliorakentamisen ty\u00f6vaiheet &#8211; katso linkin takaa referenssikohteemme. <\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Mining, rock support, scaling and loading. We engage in all phases of rock construction.<\/p>","protected":false},"author":5,"featured_media":339,"parent":89,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-922","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/pages\/922","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/comments?post=922"}],"version-history":[{"count":10,"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/pages\/922\/revisions"}],"predecessor-version":[{"id":946,"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/pages\/922\/revisions\/946"}],"up":[{"embeddable":true,"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/pages\/89"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/media\/339"}],"wp:attachment":[{"href":"https:\/\/powermining.fi\/en\/wp-json\/wp\/v2\/media?parent=922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}