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Broaching type rock-burst-resistant anchor rod
The invention relates to a broaching type rock-burst-resistant anchor rod which comprises an observation post anchor nut and a rock-burst-resistant device. The rock-burst-resistant device comprises a sleeve and a broaching body, the left end of the outer wall of the sleeve is connected with the anchor nut, a water stop nut is connected to the right end of the sleeve, a threaded section, a conical broach arranging section and a scrap accommodating guide section are sequentially arranged in the sleeve from left to right, a closing bolt is connected with the threaded section, and radial scrap accommodating grooves and a guide groove are formed in the scrap accommodating guide section; the broaching body comprises a toolbar, the left end of the toolbar is penetratingly arranged in the sleeve, broaches and a guide key are peripherally distributed on the outer wall of the left end of the toolbar, the broaches correspond to the scrap accommodating grooves, the guide key corresponds to the guide groove, and an end of an observation post penetrates the closing bolt to be connected onto the toolbar. The broaching type rock-burst-resistant anchor rod has the advantages that the anchor rod is simple in structure, easy to machine and manufacture and high in intensive-impact-resistant capacity and reliability, is safe and can severely deform instantly, and continuous constant deformation resistance can be generated.
Broaching type rock-burst-resistant anchor rod
The invention relates to a broaching type rock-burst-resistant anchor rod which comprises an observation post anchor nut and a rock-burst-resistant device. The rock-burst-resistant device comprises a sleeve and a broaching body, the left end of the outer wall of the sleeve is connected with the anchor nut, a water stop nut is connected to the right end of the sleeve, a threaded section, a conical broach arranging section and a scrap accommodating guide section are sequentially arranged in the sleeve from left to right, a closing bolt is connected with the threaded section, and radial scrap accommodating grooves and a guide groove are formed in the scrap accommodating guide section; the broaching body comprises a toolbar, the left end of the toolbar is penetratingly arranged in the sleeve, broaches and a guide key are peripherally distributed on the outer wall of the left end of the toolbar, the broaches correspond to the scrap accommodating grooves, the guide key corresponds to the guide groove, and an end of an observation post penetrates the closing bolt to be connected onto the toolbar. The broaching type rock-burst-resistant anchor rod has the advantages that the anchor rod is simple in structure, easy to machine and manufacture and high in intensive-impact-resistant capacity and reliability, is safe and can severely deform instantly, and continuous constant deformation resistance can be generated.
Broaching type rock-burst-resistant anchor rod
LIU SHIYU (author) / FENG XIATING (author) / CHEN BINGRUI (author) / ZHENG HONG (author)
2015-11-11
Patent
Electronic Resource
English
| Trans Tech Publications | 2011
| British Library Conference Proceedings | 2012
| Engineering Index Backfile | 1966