| 张 磊,刘欣童.管式渗沟对小型浅层堆积层滑坡的防治效能探讨[J].甘肃地质,2021,(2):54-58 |
| 管式渗沟对小型浅层堆积层滑坡的防治效能探讨 |
| Control Effectiveness ｏf Tubular Seepage Ditch ｏn Small-Scale Shallow Accumulation Landslide |
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| DOI： |
| 中文关键词: 管式 渗沟 堆积层滑坡 松散岩类孔隙水 治理探讨 |
| 英文关键词:landslide sewer loose rock pore water |
| 基金项目: |
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| 中文摘要: |
| 陇南地区小型浅层基覆界面滑坡频发且数量众多。该类滑坡一般规模小、滑床浅，多为基覆界面滑动，水的作用是滑坡发生的主要诱因，其中又以松散岩类孔隙水的作用最为明显。主要破坏方式以蠕滑为主，多为坡体前缘受侵蚀，从而带动整个坡体变形。管式渗沟通过设置排水层、反滤层与封闭层，采用渗透方式将地下水汇集于沟内，并通过沟底布有泄水孔的管道将影响土体力学结构的水排出坡体外，改善土体力学性质，可以从根本上消除或减弱该类滑坡的主要诱发因素，结合挡土墙等简单防护工程，达到保持坡体稳定的目的。 |
| 英文摘要: |
| Small-scale shallow base-cover interface landslides are frequent and numerous in Longnan area. This type of landslide is generally small in scale and shallow in slide bed. Most of it is the sliding of the base cover interface. The effect of water is the main cause of the landslide. Among them, the effect of loose rock pore water is the most obvious. The main failure mode is creeping, and most of the slope front edge is eroded, which drives the entire slope deformation. The pipe-type infiltration ditch collects groundwater in the ditch by setting drainage layer, filter layer, and sealing layer, and uses the infiltration method to collect the groundwater in the ditch. The mechanical properties of the body can fundamentally eliminate or weaken the main inducing factors of this type of landslide, combined with simple protection projects such as retaining walls, can achieve the purpose of maintaining the stability of the slope. |
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