The Stability Evaluation And Optimization On The Foundation Of The 31st Building In The CCIBP

The subgrade foundation soils and foundation is an important component of the overall construction project, the Safe and normal use of building is impacted by its quality. Since the difference of forming time and environment and constituents, the nature of the subgrade foundation soils is complicated and diverse. Asked the stress on the subgrade foundation soils is not exceed allowable subgrade bearing capacity; Deformation of subgrade foundation soils does not exceed the allowable subsoil deformation. Because infrastructure is in underground or underwater, the cost of construction is very expensive and the period of construction is very long.Therefore, the study of the strength, deformation and the cost subgrade foundation soils for ensuring the safety of the structures, application and the economy, are of great significance. The ground of the 31st residential projects of Chang chun Institute of Biological Products have deformation, the building, a total of four openings, 58.34m from east to west, level and casual water in front of the east side of the two openings Department have obvious deformation, west of the two openings department no significant deformation. Level and casual water in front of deformation openings has been raised upward of scattered, the door has been unable to open. Had to pick local level, has seriously affected the normal use of the building, against the deformation. The topics studied.First, through on-site soil samples were collected, CPT and field investigations to obtain first-hand information. Second, through laboratory indicators of the physical nature of soil, and lay the foundation for follow-up work. Finally, by the analysis of the recorded data and the impact factors, characteristic value of pile capacity was calculated, the calculation and analysis of foundation bearing capacity. Show that the soil bearing capacity of the load bearing capacity to meet the demands of the upper building. The bearing capacity of the state is to meet the requirements. Stratified sum settlement calculation method, even more than the overall settlement shows, Reached 69.47mm, even backfill to the east by the geological...