Aimed at the problems of MYT type hydraulic anchor-hole drill in use, the ways to improve the operation reliability of the drill were offered.

针对MY T型液压锚杆钻机在使用中存在的问题，提出了提高液压锚杆钻机工作可靠性的几种途径。

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In KP1 type perforated brick masonry, expansion bolt especially design for perforated brick is prefer, because it can form "self- anchor" effect and hold tightly in brick hole.

KP1型矩形条孔烧结页岩多孔砖砌体墙上应采用空心砌体专用膨胀螺栓，因其能够形成可靠的“自螺母效应”。

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The paper mainly introduced the construction method for anchor cable with large-angle upward hole in tailrace surge tank.

介绍了尾水调压室大角度上仰孔锚索的施工方法。

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