Flexible distribution and guide system for falling rocks

Abstract

The invention provides a flexible distribution and guide system for falling rocks. The flexible distribution and guide system comprises a flexible longitudinal falling rock guide slope and a flexible transverse falling rock distribution slope. According to the flexible distribution and guide system for the falling rocks, the guide idea is combined with the distribution idea of curtain type nets, the safe guide and orientated accumulation of the falling rocks are achieved effectively, the distribution, guide and orientated accumulation can be conducted on the falling rocks of a mountainous region, and a target building can be protected effectively.

Description

Technical field [0001] The invention relates to the field of side slope protection engineering, in particular to a rockfall flexible guide system. Background technique [0002] At present, the domestic railway slope flexible protection fields mainly include active nets, passive nets, curtain nets, and shed holes. According to their respective protection principles, they can play a good role in protecting against falling rocks for their respective applicable slope types. However, the above-mentioned protection methods have certain shortcomings in the protection of the slope above the entrance of the railway tunnel. For example, for the protection of the slope above the entrance of the railway tunnel, most of the new lines and the existing lines have adopted the active and passive slope protection. Protective nets, open tunnels, shed caves and other structures are used to prevent rockfall, but due to the large amount of work and high cost, there are certain limitations. [0003] 1....

AI Technical Summary

Problems solved by technology

However, in the protection of the slope above the railway tunnel entrance, the above-mentioned protection methods all have certain deficiencies: for example, for the slope rockfall protection above the railway tunnel entrance, most of the new lines and existing lines currently use active and passive slopes to protect the slope. Protective nets, open holes, shed holes and other structures are used to prevent rockfall, but there are certain limitations due to the large amount of engineering and high cost.

[0003] 1. Active net: it can effectively stabilize falling rocks in the short term, but with the continuous weathering of slope rocks, active net will have two disadvantages: the metal mesh will appear "bulging" phenomenon, and the cleaning workload will be large, which may cause The protective net collapsed; the loss of the prestress applied to the rock by the vertical and horizontal support ropes of the protective net resulted in the failure of the active net

[0004] 2. Passive net: Since the passive net will be greatly deformed during the process of intercepting falling rocks, the passive net is set too low, and the large buffer distance will inevitably damage the electrified equipment and trains on the railway; the passive net is set too high. High, and unable to protect the falling rocks on the lower slope of the passive net; at the same time, whether it is an active net or a passive net, it is difficult to clean up the intercepted falling rocks, and excessive accumulation will form a safety hazard

[0006] 4. Open holes and shed holes: open holes have high requirements on the foundation, but many projects cannot meet this condition due to the complex terrain, and to a certain extent, open and shed holes have limited impact resistance

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