The Big Water-cement Ratio Soil-cemet Deep Mixed Pile Foundation Construction Technology And Acceptance Standard Research

Cement soil deep mixing method is applicable to reinforcement of mud, silt soil, silt, clay, sand soil, and other foundations of a method. Applies in soft ground processing is 20 years, and formed a relatively mature theoretical basis for the construction technology and has made significant social and economic benefits.Relying on this topic actually works to resolve the deep soil mixing cement in construction projects can not meet the design requirements of the actual problem, the water-cement ratio stirred deep pile notion that water-cement ratio in the 1.3-1.5 between. The big water-cement ratio soil-cemet deep pile are currently only used in the retaining structure, the water-cement ratio of the issue will be used for deep mixing pile foundation treatment, its research, deep-pile can disturb the normal progress to meet the design requirements of the depth and form a stable bearing capacity and the settlement process control order in the ratio on the basis of norms applicable conditions, the water-cement ratio through deep stirred by the construction technology, the quality of the middle, quality inspection and evaluation three levels of research, to Pudong Airport stirred deep pile composite foundation construction and provide a basis for acceptance through the big pile of water-cement ratio deep mixing system, in terms of norms applicable, the use of systems engineering research method, identified acceptance testing experiments and engineering standards, on other relevant areas of research a reference.The main topics were the following aspects of research:1. large pile of water-cement ratio stirred deep Construction Technology research.2. large water-cement ratio stirred deep pile middle Quality Acceptance testing experimental studies.3. large water-cement ratio and deep mixing pile composite foundation of quality acceptance criteria.