冰水堆积体边坡锚固适应性研究

冰水堆积体物质组成复杂，沉积特征多变，导致结构分布极不规则。在以往的治理过程中，开挖、支护都存在很大的困难。梨园水电站进水口位于下咱日冰水堆积体，以进水口边坡为对象，研究了冰水堆积体锚固支护适应性，进行了造孔实验，验证冰水堆积体成孔特性；进行了跟管锚筋桩实验和自进式花管锚杆实验，验证两种改进工法的锚固适应性，通过物探检测和剖切检测，证明两种改进工法是可行的，确定了锚筋桩注浆工艺和花管自进式锚杆参数。采用多点位移计对边坡进行稳定监测，监测数据表明，锚固支护后边坡稳定。两种改进工法能够为类似工程提供施工参考。

Study on Adaptability of Anchoring Outwash Accumulation Slope

Outwash accumulation has the characteristics of complex composition and varied deposition, leading to irregular distribution of structure. In the previous process of governance, there exists many difficulties in excavation and support. The inlet slope of Liyuan hydropower station exist on Xia Za Ri Outwash Accumulation ,take the inlet slope as the objects ,and study the adaptability of anchoring ,then carry out poring experiment to verify the pore-forming properties of Outwash accumulation. And carry out two adaptation experiments named anchor-stake with pipe and self-drilling Perforated anchor, and verify the two improvement measures are feasible, according to geophysics exploration and cutting experiment, as well as the grouting process of anchor-stake and the parameters of self-drilling Perforated anchor . Multipoint extensometers are used to monitor stability of the slope , the slope is stable after anchoring ,according to the data from the multipoint extensometers .The two improved measures could provide a reference to the construction of similar projects.