Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for treating soft soil foundation through combination of bagged gravel piles and supercharged vacuum preloading
The invention discloses a construction method for treating a soft soil foundation through combination of bagged gravel piles and pressurized vacuum preloading. The bagged gravel piles, a pressurization system and a vacuum drainage system are included. The bagged gravel pile is restrained by the geotextile pipe bag, gravel is filled in the bagged gravel pile, and a water guide pipe is inserted to provide a drainage channel. The pressurization system comprises a pressurization pipe and is connected with a pressurization air pump through an air guide pipe, and horizontal pressure is provided during solidification to improve the drainage efficiency. The vacuum drainage system comprises mud-water separation type efficient drainage plates and a vacuum device, the drainage plates are connected through hand-shaped connectors and vacuum pipes to form a vacuum pipe network, a vacuum pump is used for vacuumizing to generate negative pressure, and drainage of pore water in the soil body is promoted. And after consolidation is completed, grouting is conducted on the bagged gravel pile through the pre-buried grouting pipe, and the strength of the pile body is further enhanced. The advantages of bagged gravel piles and supercharged vacuum preloading are combined, the consolidation drainage speed can be increased, the reinforcement effect is enhanced, the foundation bearing capacity is improved, and the phenomenon of differential settlement after construction is improved.
一种袋装碎石桩联合增压式真空预压处理软土地基的施工方法，包括袋装碎石桩、增压系统和真空排水系统。所述袋装碎石桩由土工管袋提供约束作用，向内填充碎石，并插入导水管提供排水通道。增压系统包括增压管，使用导气管和加压气泵进行连接，固结时提供水平压力提高排水效率。真空排水系统包括泥水分离式高效排水板和真空装置，排水板之间通过手型接口和真空管连接形成真空管网，利用真空泵抽真空产生负压，促进土体内孔隙水排出。固结完成后通过预埋的注浆管对袋装碎石桩进行注浆，进一步增强桩体强度。本发明结合了袋装碎石桩和增压式真空预压的优点，可以加快固结排水速度，增强加固效果，提高地基承载力并改善工后不均匀沉降现象。
Construction method for treating soft soil foundation through combination of bagged gravel piles and supercharged vacuum preloading
The invention discloses a construction method for treating a soft soil foundation through combination of bagged gravel piles and pressurized vacuum preloading. The bagged gravel piles, a pressurization system and a vacuum drainage system are included. The bagged gravel pile is restrained by the geotextile pipe bag, gravel is filled in the bagged gravel pile, and a water guide pipe is inserted to provide a drainage channel. The pressurization system comprises a pressurization pipe and is connected with a pressurization air pump through an air guide pipe, and horizontal pressure is provided during solidification to improve the drainage efficiency. The vacuum drainage system comprises mud-water separation type efficient drainage plates and a vacuum device, the drainage plates are connected through hand-shaped connectors and vacuum pipes to form a vacuum pipe network, a vacuum pump is used for vacuumizing to generate negative pressure, and drainage of pore water in the soil body is promoted. And after consolidation is completed, grouting is conducted on the bagged gravel pile through the pre-buried grouting pipe, and the strength of the pile body is further enhanced. The advantages of bagged gravel piles and supercharged vacuum preloading are combined, the consolidation drainage speed can be increased, the reinforcement effect is enhanced, the foundation bearing capacity is improved, and the phenomenon of differential settlement after construction is improved.
一种袋装碎石桩联合增压式真空预压处理软土地基的施工方法，包括袋装碎石桩、增压系统和真空排水系统。所述袋装碎石桩由土工管袋提供约束作用，向内填充碎石，并插入导水管提供排水通道。增压系统包括增压管，使用导气管和加压气泵进行连接，固结时提供水平压力提高排水效率。真空排水系统包括泥水分离式高效排水板和真空装置，排水板之间通过手型接口和真空管连接形成真空管网，利用真空泵抽真空产生负压，促进土体内孔隙水排出。固结完成后通过预埋的注浆管对袋装碎石桩进行注浆，进一步增强桩体强度。本发明结合了袋装碎石桩和增压式真空预压的优点，可以加快固结排水速度，增强加固效果，提高地基承载力并改善工后不均匀沉降现象。
Construction method for treating soft soil foundation through combination of bagged gravel piles and supercharged vacuum preloading
袋装碎石桩联合增压式真空预压处理软土地基的施工方法
SUN JINXIN (Autor:in) / LU MENGMENG (Autor:in) / YANG KANG (Autor:in) / HAN BAILIN (Autor:in)
03.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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