| With the progress of the times,Chinese 10,000 large and medium-sized cities rise from where they stand.In order to guarantee the stability of buildings,Construction based on the ground floor would have to meet the requirements of solid depth inlay.Foundation Pit refers to a whole excavation of an underground space below the surface and a coordinated support system. Bracing of foundation pit is to ensure that the underground structure and construction of surrounding is safety by reinforcement and protection measures. Because our country is vast in territory, the soil condition are not identical, it is necessary to select a foundation pit support form with local conditions according to the different characteristics of each region. Before excavation, it is not only to ensure the safety performance of foundation pit,but also to make the building around foundation pit and soil under control effectively.In this paper,the foundation pit of Deler international silk Expo Center,for the characteristics of excavation area, depth, deep and complex of the surrounding environment, expand excavation engineering design research,Arrive at some more feasible,economical and practical modular envelope form,will be bored pi les,double ring with the support of two—row pile retaining door frame and composite soil nailing walls different process with a reasonable foundation in the same project,to verify the abstract design by calculating the reliability of,adopt a reasonable excavation and transport program,foundation to develop a complete monitoring program,in accordance with the monitoring of the data,carried out a detailed analysis and research,dynamically mastered pit and surrounding buildings,roads deformation state of,timely detection of design deficiencies,in guiding the construction played an important role·Comprehensive analysis shows that,of the project in the design and construction aspects are successful,to ensure that the excavation engineering as well as the surrounding security,also reduces the construction cost,shorten the construction period.Offer the reference and value to the same kind project through the above work. |
