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- W2358476906 abstract "For the impervious construction in soft stratum,there are various technical problems,such as easy collapse of boreholes,vertical lift induced by difficultly pressed grouting,large waste led by easy leakage,and difficult control.The traditional methods of sleeve valve pipe grouting,embedded screen pipe tube and orifice closed grouting are difficult to meet the design requirements in deep soft ground.To reduce cost and to improve efficiency,a new construction method,high pulsating pressure from below with stemming slurry materials,is put forward,and one of the key techniques,slurry sealing technique,is described.For the construction requirements,a kind of low-intensity,rapidly solidified and hard plastic-like sealing slurry is developed,and its performance parameters are obtained.It is enough to stem and to consume energy by filling slurry materials between pipe and bore hole pipe wall based on the mechanism.The bottom-up pulling force which provides the basis for choosing pulling machines for construction is calculated.In addition,if you turn the pipe continuously during the process of grouting,the work efficiency can be improved and the pipe can be smoothly promoted to avoid locking accidents even in deep borehole cases without pipe drawing machines.Through the tests on the deep soft stratum in the bay area of Tuokou Hydropower Station,the slurry materials achieve the desired effect.Theoretical study and engineering practice show that it's feasible to adopt slurry sealing technology and to implement high-pressure in soft stratum,and that the construction techniques by means of stemming slurry material can meet requirements." @default.
- W2358476906 created "2016-06-24" @default.
- W2358476906 creator A5012655281 @default.
- W2358476906 date "2012-01-01" @default.
- W2358476906 modified "2023-09-23" @default.
- W2358476906 title "Development and application demonstration of stemming slurry materials for high-pressure grouting in soft stratum" @default.
- W2358476906 hasPublicationYear "2012" @default.
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