Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for treating soft soil foundation through deep compound vacuum pre-compaction
The invention relates to a method for treating soft soil foundation through deep compound vacuum pre-compaction. According to the method, a pressurizing system is improved on the basis of pressurized vacuum pre-compaction, a plastic draining plate substitutes a pressurizing filtration pipe, and a steel wire soft pipe substitutes a PVC (polyvinyl chloride) pipe in a transverse pressurizing system. The problems of difficulty in driving the pressurizing filtration pipe, difficulty in controlling perpendicularity and the like when a deep soil body is pressurized are mainly solved. The atmospheric pressure difference between a vertical draining plate in the pressurizing system and a vertical draining plate in a vacuumizing system is increased by pressurizing the deep soil body by the vertical draining plate in the pressurizing system, so that the radial seepage velocity of pore water is increased; furthermore, due to the fact that the pressurizing effect back flushes a sludge layer with relatively dense texture formed nearby the vertical draining plate during a vacuumizing period, the permeability is improved; meanwhile, due to the fact that mud particles contained in a membrane filtering pore of the vertical draining plate can also be reversely blown out through the pressurizing effect, the water permeability of the vertical draining plate is enhanced. The soft soil foundation can be relatively well treated.
Method for treating soft soil foundation through deep compound vacuum pre-compaction
The invention relates to a method for treating soft soil foundation through deep compound vacuum pre-compaction. According to the method, a pressurizing system is improved on the basis of pressurized vacuum pre-compaction, a plastic draining plate substitutes a pressurizing filtration pipe, and a steel wire soft pipe substitutes a PVC (polyvinyl chloride) pipe in a transverse pressurizing system. The problems of difficulty in driving the pressurizing filtration pipe, difficulty in controlling perpendicularity and the like when a deep soil body is pressurized are mainly solved. The atmospheric pressure difference between a vertical draining plate in the pressurizing system and a vertical draining plate in a vacuumizing system is increased by pressurizing the deep soil body by the vertical draining plate in the pressurizing system, so that the radial seepage velocity of pore water is increased; furthermore, due to the fact that the pressurizing effect back flushes a sludge layer with relatively dense texture formed nearby the vertical draining plate during a vacuumizing period, the permeability is improved; meanwhile, due to the fact that mud particles contained in a membrane filtering pore of the vertical draining plate can also be reversely blown out through the pressurizing effect, the water permeability of the vertical draining plate is enhanced. The soft soil foundation can be relatively well treated.
Method for treating soft soil foundation through deep compound vacuum pre-compaction
CAI YUANQIANG (Autor:in) / WANG JUN (Autor:in) / WANG PENG (Autor:in) / FU HONGTAO (Autor:in) / MA JIANJUN (Autor:in) / WEI HUIXING (Autor:in) / JIN YAWEI (Autor:in) / DING GUANGYA (Autor:in) / HU XIUQING (Autor:in) / GU CHUAN (Autor:in)
27.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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