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摘要:
现有公路（铁路）工程中的高陡岩质边坡，特别是风化作用强烈地区的岩质边坡，浅表层岩体多呈碎裂状。采用传统SNS主动防护网加固后，仍经常产生局部失稳、掉块等现象，部分甚至引起整体失稳。因此，针对破碎岩质边坡的加固防护迫切需要进行结构及其设计方法改进。本文提出一种锚墩式主动防护网新型组合结构及其受力计算和设计方法，可有效防止碎裂岩质边坡坡面破坏，同时保证边坡整体稳定。工程应用表明，该组合防护结构具有良好的破碎岩质边坡加固效果，值得在工程建设中推广应用。
Abstract:The shallow surface rock mass of the high and steep rock slopes in the existing highway (railway) projects, especially with severe weathering slope rock mass, is mostly cataclastic. After the traditional SNS active protective net is adopted to reinforce the slope, the rock slope has been locally unstable or subject to overall instability. Therefore, it is necessary to improve the structure and the corresponding design method for the reinforcement and protection of cataclastic rock slope. A new type of combination structure of anchor-pier active protection net as well as the stress calculation and design method is put forward, which can effectively prevent the destruction of cataclastic rock slope surface and ensure the overall stability of the slope. It can be seen from the engineering application that the combined protective structure has good reinforcing effect on the cataclastic rock slope, and it could be applied in the engineering construction.
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Key words:
- fractured rock slope /
- anchorage pier /
- active protection net /
- design method
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