What are the construction characteristics of soil nail support and the scope of application?

According to the Technical Specification for the Support of Construction Pits (JGJ120-2012), the soil nail wall support technology is the main support structure, the soil nail wall composite can improve the overall stability of the slope and the ability to withstand overloading of the top of the slope, the construction equipment used is simple, occupies a small construction site, and can be implemented with the excavation of the foundation pit one by one segmented operation, the program is feasible, safe, and economical. Soil nail support is suitable for pit depth of 12 meters or less pit project.