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Soft soil layer drainage consolidation equipment and gas injection type soft soil layer drainage consolidation method
The invention relates to the technical field of drainage consolidation, and discloses a soft soil layer drainage consolidation device and a gas injection type soft soil layer drainage consolidation method, and the soft soil layer drainage consolidation device and the gas injection type soft soil layer drainage consolidation method have the following effects that 1, a pipe pile body serves as a vacuum drainage channel, the gas pressure difference in a soft soil layer is increased through gas injection pressurization, excessive water in the soft soil layer is driven by the gas pressure to be rapidly gathered into the pipe pile body, and the drainage consolidation effect is achieved; therefore, the effects of quickly reducing the water content of the soft soil layer and shortening the drainage consolidation period are achieved. 2, in the later period of vacuumizing, an intermittent gas injection mode is adopted to drive residual water in a soft soil layer outside a vacuum range to be gathered and discharged into a pile cavity, the vacuum drainage consolidation range is expanded, meanwhile, splitting damage of a soil body caused by too large initial air pressure is avoided, and the situation that the vacuum consolidation effect is reduced due to long-time gas injection is avoided; and clogging of the water filtering plate caused by migration of fine particles is relieved. And 3, after vacuum drainage is completed, the pile and the soil jointly bear loads through interaction, and the high-strength rigid pile composite foundation is formed.
本发明涉及排水固结技术领域，公开了一种软土层排水固结设备和注气式软土层排水固结方法，并具有以下效果：1、以管桩体为真空排水通道，通过注气增压提升软土层中的气压差，软土层中过量的水分受气压驱动，迅速向管桩体内聚集，并由真空泵集中排出，达到快速降低软土层含水量，缩短排水固结周期的效果。2、在抽真空后期，采用间歇注气方式驱动真空范围外软土层中剩余水分向桩腔内聚集排出，扩大真空排水固结范围，同时避免因起始气压过大导致土体的劈裂破坏，避免长时间注气导致的真空固结效果降低，缓解因细微颗粒迁移造成滤水板淤堵的情况。3、真空排水完成后，通过桩土相互作用共同承担荷载，形成高强刚性桩复合地基。
Soft soil layer drainage consolidation equipment and gas injection type soft soil layer drainage consolidation method
The invention relates to the technical field of drainage consolidation, and discloses a soft soil layer drainage consolidation device and a gas injection type soft soil layer drainage consolidation method, and the soft soil layer drainage consolidation device and the gas injection type soft soil layer drainage consolidation method have the following effects that 1, a pipe pile body serves as a vacuum drainage channel, the gas pressure difference in a soft soil layer is increased through gas injection pressurization, excessive water in the soft soil layer is driven by the gas pressure to be rapidly gathered into the pipe pile body, and the drainage consolidation effect is achieved; therefore, the effects of quickly reducing the water content of the soft soil layer and shortening the drainage consolidation period are achieved. 2, in the later period of vacuumizing, an intermittent gas injection mode is adopted to drive residual water in a soft soil layer outside a vacuum range to be gathered and discharged into a pile cavity, the vacuum drainage consolidation range is expanded, meanwhile, splitting damage of a soil body caused by too large initial air pressure is avoided, and the situation that the vacuum consolidation effect is reduced due to long-time gas injection is avoided; and clogging of the water filtering plate caused by migration of fine particles is relieved. And 3, after vacuum drainage is completed, the pile and the soil jointly bear loads through interaction, and the high-strength rigid pile composite foundation is formed.
本发明涉及排水固结技术领域，公开了一种软土层排水固结设备和注气式软土层排水固结方法，并具有以下效果：1、以管桩体为真空排水通道，通过注气增压提升软土层中的气压差，软土层中过量的水分受气压驱动，迅速向管桩体内聚集，并由真空泵集中排出，达到快速降低软土层含水量，缩短排水固结周期的效果。2、在抽真空后期，采用间歇注气方式驱动真空范围外软土层中剩余水分向桩腔内聚集排出，扩大真空排水固结范围，同时避免因起始气压过大导致土体的劈裂破坏，避免长时间注气导致的真空固结效果降低，缓解因细微颗粒迁移造成滤水板淤堵的情况。3、真空排水完成后，通过桩土相互作用共同承担荷载，形成高强刚性桩复合地基。
Soft soil layer drainage consolidation equipment and gas injection type soft soil layer drainage consolidation method
一种软土层排水固结设备和注气式软土层排水固结方法
HUANG JUNGUANG (author) / ZHANG HENG (author) / LI WEIKE (author) / LI LEI (author)
2022-10-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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