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    • 5. 发明公开
    • Schutzvorrichtung für (Gebirgs-)Anker und Reibrohranker
    • Schutzvorrichtungfür(Gebirgs-)Anker und Reibrohranker
    • EP2687673A2
    • 2014-01-22
    • EP13004781.4
    • 2011-10-17
    • Atlas Copco MAI GmbH
    • Papousek, Herbert
    • E21D21/00
    • E21D21/0013E21D21/0033E21D21/004
    • Um die einen Anker (2) vor Korrosion schützende Beschichtung vor Beschädigung zu schützen, wenn der Anker (2) in ein vorgebohrtes Loch eingeschoben wird, wird auf das vordere, zuerst in das Bohrloch einzuschiebende Ende des Ankers (2) eine Schutzvorrichtung (1) aufgesteckt. Die Schutzvorrichtung (1) umfasst eine Hülse (3), die reibschlüssig am Anker (2) sitzt und eine Platte (4), die beim Einschieben des Ankers (2) in Anlage an die Mündung des Bohrlochs oder ein dort vorgesehenes Baustahlgitter (11) gelangt. So wird die Außenseite des Ankers (2), auf der die vor Korrosion schützende Beschichtung angebracht ist, vor Berührung mit der Mündung des Bohrloches bzw. mit dort vorgesehenem Baustahlgitter (11) geschützt und kann nicht beschädigt werden, wenn der Anker (2) eingeschoben wird.
    • 保护装置(1)包括由塑料制成并且以摩擦配合的方式坐在螺栓(2)上的套筒(3)。 板(4)与孔的口部接合,并且钢网(11)用于保护设有防腐涂层的螺栓的外表面,以免接触孔或钢网的口部,并且当螺栓 被插入。 包括以下独立权利要求:(1)保护装置和摩擦螺栓的组合; 和(2)摩擦螺栓。
    • 9. 发明授权
    • KORROSIONSGESCHÜTZTER SELBSTBOHRANKER SOWIE ANKERTEILEINHEIT UND VERFAHREN ZU DESSEN HERSTELLUNG
    • 防腐蚀与锚杆自钻的部件单位和方法及其
    • EP2257690B1
    • 2011-09-21
    • EP09721454.8
    • 2009-03-18
    • Dywidag-Systems International GmbH
    • SCHMIDT, Frank
    • E21D21/00
    • E21D21/0013E21D21/0053
    • The invention relates to a corrosion-protected self-drilling anchor and an anchor subunit and to a method for the production thereof. A self-drilling anchor according to the invention comprises a number of anchor subunits (A, B), each having a hollow rod element (3), which are connected among each other by configuring an axial bell butt joint into a connected pull and pressure member. The first subunit (A) at the end thereof has a core bit (14), and the subunit (B) at the end thereof is non-rotatably connected to a drilling and injecting device. According to the invention, it is provided that each hollow rod element (3) with the exception of the end sections (3, 3”) thereof is surrounded by a cladding pipe (6), and the annular gap between the cladding pipe (6) and hollow rod element (3) is pressed together with a first corrosion protection compound (10). In the region of the bell butt joint, a spigot pipe (12) is tightly connected to the cladding pipes (6) of the two hollow rod elements (3) that are part of the bell butt joint. To this end, the hollow space between the spigot pipe (12) and hollow rod elements (3) is filled with a second corrosion protection compound. A method according to the invention provides for the factory-prefabrication of a number of anchor subunits in order to then drill then into the subsurface at the site of the anchor to be produced and connect them to each other by forming bell butt joints, wherein in the region of the bell butt joint a spigot pipe is tightly connected to the ends of two adjoining cladding pipes and the hollow space between the spigot pipe and hollow rod elements is filled with a second corrosion protection compound. The invention for the first time provides a self-drilling anchor having increased requirements with respect to corrosion protection.
    • 10. 发明公开
    • KORROSIONSGESCHÜTZTER SELBSTBOHRANKER SOWIE ANKERTEILEINHEIT UND VERFAHREN ZU DESSEN HERSTELLUNG
    • 防腐蚀与锚杆自钻的部件单位和方法及其
    • EP2257690A1
    • 2010-12-08
    • EP09721454.8
    • 2009-03-18
    • Dywidag-Systems International GmbH
    • SCHMIDT, Frank
    • E21D21/00
    • E21D21/0013E21D21/0053
    • The invention relates to a corrosion-protected self-drilling anchor and an anchor subunit and to a method for the production thereof. A self-drilling anchor according to the invention comprises a number of anchor subunits (A, B), each having a hollow rod element (3), which are connected among each other by configuring an axial bell butt joint into a connected pull and pressure member. The first subunit (A) at the end thereof has a core bit (14), and the subunit (B) at the end thereof is non-rotatably connected to a drilling and injecting device. According to the invention, it is provided that each hollow rod element (3) with the exception of the end sections (3, 3”) thereof is surrounded by a cladding pipe (6), and the annular gap between the cladding pipe (6) and hollow rod element (3) is pressed together with a first corrosion protection compound (10). In the region of the bell butt joint, a spigot pipe (12) is tightly connected to the cladding pipes (6) of the two hollow rod elements (3) that are part of the bell butt joint. To this end, the hollow space between the spigot pipe (12) and hollow rod elements (3) is filled with a second corrosion protection compound. A method according to the invention provides for the factory-prefabrication of a number of anchor subunits in order to then drill then into the subsurface at the site of the anchor to be produced and connect them to each other by forming bell butt joints, wherein in the region of the bell butt joint a spigot pipe is tightly connected to the ends of two adjoining cladding pipes and the hollow space between the spigot pipe and hollow rod elements is filled with a second corrosion protection compound. The invention for the first time provides a self-drilling anchor having increased requirements with respect to corrosion protection.