As a retaining structure for deep foundation pits,rigid secant pile walls are constructed by rotary drilling and rigid cutting of slurry retaining walls.Taking the pile foundation project(Project 188 for short)in Phase I of the urban innovation unit in the industrial zone at No.188,Yuanshan Road,Longgang District as an example,the drilling,pile quality and secant pile wall quality cannot meet design requirements in high-permeability soft soil layers.To solve these problems,the effects of rigid secant pile walls in high-permeability soft soil layers are deeply explored in terms of adaptability,safety and economy by studying the working principle,construction process and reinforcement effect of rigid secant pile walls in high-permeability soft soil layers.Results show that rigid secant pile walls in high-permeability soft soil layers cannot only effectively strengthen foundations and enhance the stability of high foundation pits,but also can greatly improve the construction efficiency and quality,reduce construction difficulties and costs,shorten the construction time and bring more economic benefits,as a solution to construction problems in high-permeability soft soil layers.Research results can also be applied for reference in the construction technology for rigid secant pile walls in high-permeability soft soil layers.
NETL
NSTL
万方数据
维普
