The key points of design and construction of the soil nailing wall support technique and its application results in the foundation pit slope project of the comprehensive building of Chinese Centre of Mitigating Natural Calamity are described.

The mechanical and mathematical model of Composite Soil Nailing(CSN) of foundation pit slope is established.

By the successful application of the anchor rod retaining technique in the foundation pit slope project at Fulin Mansion, Zhuzhou city, this paper introduces the essential points of the design and construction of this technique.

The application of reinforced rotary jet grouting pile in slope support of Nangao main canal reconstruction;

Aiming at the stability evaluation and support design for the slope of high-grade highway in mountainous area and based on GIS-Supermap technique, the slope support optimal design system (SSODS) is setup and deveolped.

In order to study highway slope stability and support design in mountainous terrain,firstly the general limit equilibrium method(GLE) and stability analysis method for reinforced slope are explained,and a slope support optimal design system (SSODS) based on component geographic information system (ComGIS)is developed.

The application of cement injection pile in side slope support;

Foundation pit dewatering and side slope support;

Combined with practical work scheme for side slope supporting design of foundation pit is introduced as well as construction technology.