Soil nail expandable reinforcing structure and method for rock-soil slope: Fid-Bau Portal

Soil nail expandable reinforcing structure and method for rock-soil slope

LI WEI / LIU WEI / ZHANG XIAOMING

The invention discloses a soil nail expandable reinforcing structure and method for a rock-soil slope, and belongs to the technical field of rock-soil slope edge reinforcing. The soil nail expandable reinforcing structure for the rock-soil slope comprises a reinforcing plate and an expanding structure, wherein the reinforcing plate is provided with a grouting hole, and the grouting hole is used for grouting reinforcement; the expanding structure is arranged on the reinforcing plate, and comprises a connecting sleeve, a drill bit fixedly connected with the bottom of the connecting sleeve, a rotating block rotationally connected with the drill bit, a threaded rod fixedly connected with the rotating block, and a plurality of rotating curved surface bodies connected with the outer surface of the threaded rod in an opening and closing mode; and one end of each rotating curved surface body is hinged to the drill bit, and the other end of each rotating curved surface body is fixedly connected with a supporting block. According to the soil nail expandable reinforcing structure and method for the rock-soil slope, the reinforcing structure is arranged, so that the connectivity between the fixing plate and the rock-soil slope edge is better, and the reinforcing effect is greatly improved.

一种用于岩土边坡的土钉可扩张加固结构及方法，属于岩土坡边加固技术领域。所述用于岩土边坡的土钉可扩张加固结构包括：加固板，其设置有注浆孔，注浆孔用于注浆加固；扩张结构，其设置于所述加固板，扩张结构包括连接套、与连接套底部固定连接的钻头、与钻头转动连接的转动块、与转动块固定连接的螺纹杆、以及与螺纹杆外表面开合连接的若干个转动曲面体，转动曲面体的一端与钻头铰接，转动曲面体的另一端与支撑块固定连接。所述用于岩土边坡的土钉可扩张加固结构及方法通过设置加固结构，能够使得固定板与岩土坡边连接性更好，大大提升了加固效果。

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