5m; steel-pipe pile, soil nail and prestressed anchor three-in-one compound soil-nailing wall supporting technique is adopted to effectively shorten construction cycle and to guarantee low cost, wide appli- cation scope and high reliability.

The safe and economil quality of soil nail wall support can be increased.

Combined with engineering in Pingding county,it analyzes cause of failure applying for soil nail wall support according to geological condition of side slope,introduces new treatment plan,and summarizes points on analyzing and treating stability of side slope.

The design and construction ot soil nailing technique used for high slope bracing in soft rock are proposed in this paper.

The soil nailing technology is introduced in this paper and according to action mechanism, construction technology and other aspects discussion is carried out.

Construction technology of natural sloping combined with soil nailing wall;