锚索桩及桩间喷锚复合支护结构施工技术

The construction technology of anchored pile and spraying anchor composite supporting structure between piles

由于达万铁路M标段地质构造比较复杂 ,故决定采用一种轻型复合柔性支护技术 ,即锚索桩及桩间喷锚复合支护结构。详细介绍了该结构的施工工艺流程 ,从开挖边坡上部采用喷锚挂网支护 ,下部采用预应力锚索桩及桩间喷锚挂网复合支护结构的施工逐一进行了阐述。该项技术的运用 ,增强了地层的锚固力、桩的抗滑力 ,达到了维护建筑物稳定的目的。

Because of complicated geological structure in Dawan railway m section a light composite flexible supporting structure are adopted. It is anchored pile and spraying anchor composite supporting structure between piles. In this paper construction technical process is introduced in detail from slope excavation adopting spraying anchor net supporting to under adopting prestress anchored pile and spraying anchor composite supporting structure between piles. All construction processes are elaborated one by one. Through the application of this technology the anchorage force of stratum and anti slide force of pile are enhanced to keep the stability of building.