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- Title
强降雨条件下碎裂岩质边坡锚墩式主动网加固机理模型试验.
- Authors
赵晓彦; 肖典; 罗改; 罗天成; 吴兵
- Abstract
The rock masses along the Sichuan-Tibet Railway are affected by geological structure, weathering and acid rain, and extensively developed deep fragmentation zones. Engineering excavation often forms long and large fragmented rock slopes. In addition to the avalanche of crushed rocks on the slope, this type of slope also has the risk of overall instability. Conventional active nets are difficult to effectively strengthen. Based on this, a new composite structure of anchor pier type active net is proposed, which replaces short anchor rods in the active net with prestressed anchor cables, constrains the displacement of rock masses on the fragmented rock slope, and simultaneously carries out deep reinforcement of the slope. A 1:10 large-scale indoor model test was designed to explore the stress-strain characteristics of the anchor pier active net in the reinforcement of cataclastic rock slopes under the condition of heavy rainfall, and to explore the mechanism and design method of the coordinated force. The test results show that under the condition of heavy rainfall, the combined structure of the anchor pier type active net can be cooperatively stressed, and the force of the active net has a significant impact on the working state of the prestressed anchor cable, which will form an obvious secondary tension. Fully consider.
- Publication
Journal of Engineering Geology / Gongcheng Dizhi Xuebao, 2021, Vol 29, Issue 2, p365
- ISSN
1004-9665
- Publication type
Article
- DOI
10.13544/j.cnki.jeg.2021-0155