Application And Research Of Deep Foundation Pit Supporting Technology In The Sensitive Environment Of Urban Narrow Space

Tall and super high-rise buildings in the city's downtown area, the surrounding supporting relatively mature, road construction has been basically put in place, constr-uction can not cause damage to the surrounding buildings; the construction area reserved space is small, complex geological environment, the limitations of large deep foundation pit construction, construction quality control, safety assurance, organiza-tion difficult. With the vigorous development of China in recent years, rapid economic growth rate of development and construction, and built a large number of China's current high, big, new, sharp buildings, building height constantly refreshed. At the same time the current urban high-rise building on the foundation bearing capacity requirements continue to increase, thereby resulting in more and more deep excavation.Effect of super high-rise building on the foundation bearing capacity caused by high-rise in the construction process than ordinary buildings in the excavation pit technical and technological difficulty and complexity, especially in urban high-rise buildings over deep narrow space excavation by the surrounding space size constraints while maintaining the existing buildings on the base to avoid secondary damage, affect the structural safety of the surrounding buildings. Ultra Deep Foundation support level protection system narrow space, and construction technology Sub Foundation importance. Therefore, the narrow area of urban deep excavation support system for the future high-rise development, drawing on the experience and technology has great significance.Taking Texas Buynow Information Plaza project as a starting point for the narrow urban area protection and construction of deep excavation support process for expanded presentation Texas Buynow Information Plaza Project Foundation surroundings complex and Excavation Site by limit the impact. In ensuring the surrounding buildings and public facilities based on the premise of damage from construction method and construction technology excavation design, foundation pit dewatering, excavation and construction layout deployment Foundation itemized construction methods made more the challenge, in terms of excavation monitoring mechanisms and security emergency mechanism also put forward higher requirements.Therefore conclude Deep Foundation Construction Technology of Texas Buynow Information Plaza project, analysis of its key construction technology, process, summarize and innovation, and the project Deep Foundation technology promotion and application of technology, the future of the construction industry narrow areas of deep excavation provide references, provide references for super high-rise construction built of deep excavation or other similar buildings, providing valuable experience for the development and practical application in the construction industry, in terms of our Jianye the impact is huge.In this study construction technology and construction management integrated Texas Bainaohui introduced in engineering or technology instance its construction workers were successfully applied, combined with the construction process of this construction technology experience and ideas for the future construction and technology reference to provide technical support and methodological guidance.