边坡病害的治理和预防对加快施工速度的工程措施方案

发布时间：2018-06-15 21:10

  本文选题：公路 + 边坡　； 参考：《公路》2017年04期

【摘要】：在工程地质条件较差、比较松软的白垩纪粉砂岩和红砂岩中,含砂质、泥质成分较高,成岩较差,软硬互层,形成差异分化,遇水极易崩解剥落,且有膨胀性。个别区域地下水含量较高的特殊地质条件下进行边坡开挖和防护,成孔后,孔壁会呈现破坏现象,穿索比较难,有可能钻孔损坏,无法下索。采用自钻式中空预应力锚杆技术即可很好解决该类地质难题,自钻式锚杆是一种新型材料,具有钻注锚组合在一个工艺过程内完成锚固的一套完整的锚固技术。
[Abstract]:In the relatively soft and soft Cretaceous siltstone and red sandstone with poor engineering geological conditions, there are sandiness, high muddy composition, poor diagenesis, soft and hard interbed, differential differentiation, easy disintegration and exfoliation when water is encountered, and it has expansibility. Slope excavation and protection are carried out under the special geological conditions with high groundwater content in some regions. After the hole is formed, the hole wall will present the phenomenon of destruction, it is difficult to penetrate the cable, and it may be damaged by borehole and can not be used for cable down. This kind of geological problem can be well solved by using self-drilling hollow prestressed anchor. Self-drilling anchor is a new type of material with a complete set of anchoring technology which can be combined with drilling and grouting anchor in one process.
【作者单位】： 云南云岭高速公路集团第十工程公司;
【分类号】：U416.14
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本文编号：2023665