A sleeve is applied around the anchor bolts.
The building frame is secured to a foundation by attaching the anchor brackets to anchor bolts set in the foundation.
A tool for driving and setting nail-pin anchors and anchor bolts into concrete, the tool using the percussive action of a rotary hammer drill.
The inventive method of forming anchor bolts comprises following steps.
In particular, an anchor bolt fixing composition which contains the curing agent can fix anchor bolts into a base metal with high strength.
The invention also concerns a device for automatized rock bolting and a method for rock bolting.
The invention relates to a nut tensioning system that enables a high tension or high pre-tension force to be applied to bolts, rock bolts and self-drilling rock bolts.
The present invention relates to self drilling rock bolting.
The invention also relates to such a rock bolting system.
Provided is a composition for anchoring rock bolts.
Rock bolts (1) exist in various forms, wherein it is particularly advantageous if the discharge end (4) is provided with a mixing head (15), into which the required exit hole (8) is integrated.
The method requires replacing ordinary stay bolts with longer ones.
Thus rock bolts can be assembled at a mine site from bars delivered from a rod and bar mill and nuts delivered from a rock bolt manufacturer.
In particular, the invention concerns both a drilling apparatus for rock bolting, and a rock bolt for use with the drilling apparatus.
The flanges (14, 16) of the front and rear housings (4, 5) are provided with either holes for passing the tie-bolts (10) or female threads for receiving the male threads at the free end portions of the tie-bolts (10).
The physical layout may also include an array of roof bolts in a roof of the mine.
The present invention discloses a tube (14) for rock bolts having either a cable tendon or a rod tendon.
A foundation bolt placement template (14) may be used to locate and support the foundation bolts (10, 12, 203, 204) during fabrication of the foundation (4) and to further secure the frame foundation interface.
In other aspects the invention concerns a system comprising the drilling apparatus in combination with a rock bolt and a method for rock bolting using the system.
A hydraulic tensioning system (25) for nuts (21) on studbolts (19) has a puller bar (35) and a puller buddy (37) which are coupled to the studbolt (19), and a bridge (38) around the nut (20).
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Traduction Translation Traducción Übersetzung Tradução Traduzione Traducere Vertaling Tłumaczenie Mετάφραση Oversættelse Översättning Käännös Aistriúchán Traduzzjoni Prevajanje Vertimas Tõlge Preklad Fordítás Tulkojumi Превод Překlad Prijevod 翻訳 번역 翻译 Перевод