Two, the function of the building, shape, plane size, number of floors, structure type, load (list the load combination when possible), the type of foundation to be adopted and its approximate size, as well as the description of the special requirements;
The third is to clarify the unfavorable geological phenomena of the site and analyze and demonstrate the stability of the site and foundation under static conditions; In the earthquake area with seismic fortification intensity equal to or greater than 6 degrees, the soil type and construction site category should be judged; In the strong earthquake area above 7 degrees, the fault dislocation, liquefaction and seismic subsidence should be analyzed, demonstrated and judged, and the suitability conclusion of the whole site should be clearly drawn.
Fourthly, it is necessary to understand the stratum structure and the physical and mechanical properties of rock and soil, and make qualitative and quantitative evaluation according to the uniformity, strength and deformation characteristics of rock and soil. The analysis and selection of geotechnical parameters should conform to the current Code for Design of Building Foundations and Code for Geotechnical Engineering Investigation.
Five, should clarify the site hydrogeological conditions, groundwater burial conditions and the scope of change, evaluate its influence on the stability of foundation, basement and construction slope, and put forward preventive measures;
Sixth, the demonstration and analysis of the basic scheme. In the natural foundation scheme, the bearing layer and buried depth of the foundation should be suggested, the bearing capacity and settlement should be analyzed and checked, and the inclination direction and value should be predicted if necessary; The pile foundation scheme should put forward analysis and suggestions on pile type, bearing layer at pile end, soil bearing capacity at pile end, soil friction around pile or bearing capacity of single pile and the possibility of pile sinking, and analyze the settlement of pile foundation if necessary; Analysis and demonstration of other suitable basic schemes;
Differential settlement between high-rise and low-rise buildings and its influence on adjacent buildings.
Eight, analyze the slope stability of foundation pit excavation, and put forward the supporting scheme when necessary;
Nine, the feasibility of construction precipitation and its influence on the building itself and adjacent buildings, and put forward the precipitation scheme when necessary;
X. Monitoring and inspection during construction and use