关键词: 锚索格构, 受力机制, 滑坡推力

Abstract: We carried out the in-situ model tests on the interaction between anchor rope lattice and the landslide of gravel soil, and by the test results we analyzed the force distribution of lattice beams under the landslide thrust. The results showed that the transverse beams and vertical beams reveal the same mechanical characteristics, namely the force is the largest at the nodes and the smallest at central part of the beams due to reinforcement of cable ropes; under the thrust of landslide, the top transverse beams' displacement and force are the maximum, the middle beams are smaller and the bottom beams are the smallest, the loading sharing ratio is 70%~85% from top to bottom of transverse beam; under the same sliding loading, the transverse beam and vertical beam have the same moment distribution that the sagging moment reaches the maximum at the nodes and the hogging moment reaches the maximum at the central part of beams, and the maximum sagging moment is 1.6~2.0 times of the maximum hogging moment. Finally, the cause for relatively large error of measured soil pressure is discussed.

Key words: anchor rope lattice, force mechanism, landslide thrust