Abstract As a new type of intervention technology for hyperbaric conditions, the saturation intervention method has the advantages of high efficiency and security; the key to success of this method is the formation of a good, airtight filter cake. Based on the Nanjing Weisan Road river-crossing project, and considering that effective working time inside the chamber is about 3 to 4 hours, on-site tests were carried out regarding slurry preparation, formation of the filter cake and air tightness, and a slurry performance index was determined for each stage of filter cake formation. Relevant quantitative judgment standards are summarized in this paper.
Abstract：
As a new type of intervention technology for hyperbaric conditions, the saturation intervention method has the advantages of high efficiency and security; the key to success of this method is the formation of a good, airtight filter cake. Based on the Nanjing Weisan Road river-crossing project, and considering that effective working time inside the chamber is about 3 to 4 hours, on-site tests were carried out regarding slurry preparation, formation of the filter cake and air tightness, and a slurry performance index was determined for each stage of filter cake formation. Relevant quantitative judgment standards are summarized in this paper.
.Research and Application of Airtight Fliter Cakes to Saturation Intervention in Hyperbaric Slurry Shield Chambers[J] MODERN TUNNELLING TECHNOLOGY, 2015,V52(4): 74-79
2015, Vol. 52 