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Super-thick coal ash stratum foundation treatment method
The invention discloses an ultra-thick fly ash stratum foundation treatment method which is applied to unstable and seriously liquefied soil layers such as a thick liquefied fly ash layer and muddy clay in a saturated water state, the method combines precipitation and dynamic compaction processes, and utilizes a precipitation well to reduce the water content of a soil body and eliminate pore water pressure, so that the soil body is prevented from being damaged. The compactness between soil bodies is enhanced through dynamic compaction, the void ratio of the soil bodies is reduced, and the problems that the stratum is extremely prone to liquefaction and low in bearing capacity in the super-thick coal ash saturated water state are effectively solved. The method solves the problem that an existing severe liquefied soil layer treatment method is poor in underwater stratum treatment effect.
本发明公开了一种超厚粉煤灰地层地基处理方法,在厚度较厚的液化粉煤灰层、饱和水状态的淤泥质粘土等不稳定严重液化土层中得以应用,该方法结合降水和强夯工艺,利用降水井降低土体含水率,消除孔隙水压力,强夯加强土体间密实度,减小土体孔隙比,有效解决了超厚粉煤灰饱和水状态下地层极易液化和承载力低的问题。本发明解决了现有的严重液化土层处理方法存在水下部分地层处理效果不佳的问题。
Super-thick coal ash stratum foundation treatment method
The invention discloses an ultra-thick fly ash stratum foundation treatment method which is applied to unstable and seriously liquefied soil layers such as a thick liquefied fly ash layer and muddy clay in a saturated water state, the method combines precipitation and dynamic compaction processes, and utilizes a precipitation well to reduce the water content of a soil body and eliminate pore water pressure, so that the soil body is prevented from being damaged. The compactness between soil bodies is enhanced through dynamic compaction, the void ratio of the soil bodies is reduced, and the problems that the stratum is extremely prone to liquefaction and low in bearing capacity in the super-thick coal ash saturated water state are effectively solved. The method solves the problem that an existing severe liquefied soil layer treatment method is poor in underwater stratum treatment effect.
本发明公开了一种超厚粉煤灰地层地基处理方法,在厚度较厚的液化粉煤灰层、饱和水状态的淤泥质粘土等不稳定严重液化土层中得以应用,该方法结合降水和强夯工艺,利用降水井降低土体含水率,消除孔隙水压力,强夯加强土体间密实度,减小土体孔隙比,有效解决了超厚粉煤灰饱和水状态下地层极易液化和承载力低的问题。本发明解决了现有的严重液化土层处理方法存在水下部分地层处理效果不佳的问题。
Super-thick coal ash stratum foundation treatment method
超厚粉煤灰地层地基处理方法
WANG YAO (Autor:in) / WANG PENG (Autor:in) / YUE TENGFEI (Autor:in) / ZHOU WEIWEI (Autor:in) / ZHANG SHIWEI (Autor:in) / SUO XIAOFENG (Autor:in) / HU XUGUANG (Autor:in)
29.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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