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A platform for research: civil engineering, architecture and urbanism
Composite foundation of saturated soft soil reinforced by single-component geopolymer and construction method of composite foundation
The invention provides a single-component geopolymer reinforced saturated soft soil composite foundation and a construction method thereof, and the construction method comprises the following steps: obtaining raw materials, adjusting the silica-alumina ratio of the raw materials, sintering and doping a solid alkali activator to obtain a single-component geopolymer; then, a plurality of vertical drainage bodies are driven into the saturated soft soil, and medium-coarse sand horizontal drainage bodies are laid and compacted; then adding the single-component geopolymer into the saturated soft soil by adopting a dry powder spraying and stirring method, and uniformly stirring to obtain a single-component geopolymer stirring pile; and the single-component geopolymer stirring pile absorbs moisture in the saturated soft soil to carry out hydration reaction to obtain a stone body. And under the combined action of the stone body, the saturated soft soil and the medium-coarse sand horizontal drainage body, the single-component geopolymer reinforced saturated soft soil composite foundation can be obtained. According to the invention, the single-component geopolymer is used for reinforcing the soil body instead of cement, so that the carbon emission of cement production can be reduced. In addition, the drainage consolidation rate of the saturated soft soil can be increased through expansion loading of the stirring piles and drainage of the vertical drainage body.
本发明提供一种单组分地聚物加固饱和软土的复合地基及其施工方法，包括：获取原材料并调节其硅铝比，烧结并掺加固体碱激发剂，得到单组分地聚物；接着在饱和软土中打入若干个竖向排水体，并铺设中粗砂水平排水体并压实；然后采用干粉喷射搅拌法将单组分地聚物加入饱和软土中并搅拌均匀，得到单组分地聚物搅拌桩；单组分地聚物搅拌桩吸收饱和软土中的水分进行水化反应，得到结石体。结石体、饱和软土和中粗砂水平排水体共同作用，即可得到单组分地聚物加固饱和软土的复合地基。本发明利用单组分地聚物替代水泥用于加固土体，可降低水泥生产的碳排放。此外，通过搅拌桩膨胀加载和竖向排水体排水可加快饱和软土排水固结速率。
Composite foundation of saturated soft soil reinforced by single-component geopolymer and construction method of composite foundation
The invention provides a single-component geopolymer reinforced saturated soft soil composite foundation and a construction method thereof, and the construction method comprises the following steps: obtaining raw materials, adjusting the silica-alumina ratio of the raw materials, sintering and doping a solid alkali activator to obtain a single-component geopolymer; then, a plurality of vertical drainage bodies are driven into the saturated soft soil, and medium-coarse sand horizontal drainage bodies are laid and compacted; then adding the single-component geopolymer into the saturated soft soil by adopting a dry powder spraying and stirring method, and uniformly stirring to obtain a single-component geopolymer stirring pile; and the single-component geopolymer stirring pile absorbs moisture in the saturated soft soil to carry out hydration reaction to obtain a stone body. And under the combined action of the stone body, the saturated soft soil and the medium-coarse sand horizontal drainage body, the single-component geopolymer reinforced saturated soft soil composite foundation can be obtained. According to the invention, the single-component geopolymer is used for reinforcing the soil body instead of cement, so that the carbon emission of cement production can be reduced. In addition, the drainage consolidation rate of the saturated soft soil can be increased through expansion loading of the stirring piles and drainage of the vertical drainage body.
本发明提供一种单组分地聚物加固饱和软土的复合地基及其施工方法，包括：获取原材料并调节其硅铝比，烧结并掺加固体碱激发剂，得到单组分地聚物；接着在饱和软土中打入若干个竖向排水体，并铺设中粗砂水平排水体并压实；然后采用干粉喷射搅拌法将单组分地聚物加入饱和软土中并搅拌均匀，得到单组分地聚物搅拌桩；单组分地聚物搅拌桩吸收饱和软土中的水分进行水化反应，得到结石体。结石体、饱和软土和中粗砂水平排水体共同作用，即可得到单组分地聚物加固饱和软土的复合地基。本发明利用单组分地聚物替代水泥用于加固土体，可降低水泥生产的碳排放。此外，通过搅拌桩膨胀加载和竖向排水体排水可加快饱和软土排水固结速率。
Composite foundation of saturated soft soil reinforced by single-component geopolymer and construction method of composite foundation
一种单组分地聚物加固饱和软土的复合地基及其施工方法
LIU JIFENG (author) / ZHANG HUIZHI (author) / ZHENG CHUNLIN (author) / YE DETAI (author)
2022-08-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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