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发明公开
CN102022129A 灌浆锚索锚固长度限位装置 无效 - 驳回

灌浆锚索锚固长度限位装置
摘要：
本发明涉及煤矿用锚索领域，具体公开了一种灌浆锚索锚固长度限位装置，包括：锚索，其外面套设有套管，套管的一端套设有橡胶皮，橡胶皮的中心开设有孔，锚索的一端穿过套管从橡胶皮的孔中穿出，锚索伸出橡胶皮的长度为锚固长度，锚索伸出橡胶皮的部分为锚固段；锚固段以及套管插入到围岩体上的锚索孔中；止浆塞，用于当灌注到锚索孔内锚固段的浆液凝固以后，套设在套管靠近锚索孔入口的一端，拱形托盘，通过锁具固定于锚索露出锚索孔的一端。本发明可以自由调节灌浆锚索的锚固端的长度，将锚索的锚固长度控制的更加合理，使施加的预紧力能够作用在更大范围的岩体上，充分发挥锚索的主动支护作用。
摘要（英）：

The invention relates to the field of coal mining anchor cables, in particular to an anchorage length limit device for a grouting anchor cable, which comprises an anchor cable, a slurry stopping plug and an arc shaped tray. The anchor cable is sleeved with a sleeve, one end of the sleeve is provided with a rubber skin, the center of the rubber skin is provided with a hole, one end of the anchor cable passes though the sleeve and goes out from the hole of the rubber skin, the length of the anchor cable extending out of the rubber skin is anchoring length, the part of the anchor cable, extending out of the rubber skin, is an anchoring section; the anchoring section and the sleeve are inserted into anchor cable holes on surrounding rocks; the slurry stopping plug can be sleeved at one end of the sleeve, close to the entrance of the anchor cable hole, after slurry grouted to the anchoring section in the anchor cable hole is solidified; and the arc shaped tray is fixed at one end of the anchor cable, exposing out of the anchor cable hole, by a lock. The anchorage length limit device can be used for freely regulating the length of the anchoring end of the grouting anchor cable, controlling the anchoring length of the anchor cable more reasonably so that applied pretightening force can act on a larger area of rocks, thereby fully exerting the active supporting and protecting function of the anchor cable.

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