Stability study of bolting slop under water function

Aiming at combined function of ground load and water on highway earth slope and deep foundation pit, we adopt model test to obtain axial strain distribution of the anchor rod with combined function of water and ground load. We also analyze strain change rule of slope surface of anchoring system, area around slipping surface as well as end of anchoring segment. Under combined function of water and ground load, with increase of water percolating capacity and ground load, the anchor rod system turns to down-warping status from integral tension status. Stress of top anchor rod changes greatly, and then the lower anchor rod, bottom anchor rod is the least in stress variation. When the slope failure slides downwards, its bending degree decreases, and its load resistance capability also lowers and result in side slope destabilization. The test result can be referred in design and study of earth anchor under similar conditions in the future.