Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cold region pile foundation freeze injury protection method
The invention provides a cold region pile foundation freeze injury protection method which comprises the following steps: stacking a plurality of self-expanding fillers in a pit slot in which a pile foundation is arranged, and covering the pit slot with a soil body after the self-expanding fillers are stacked; each self-expansion filler comprises a flexible fabric bag and a soil body in the bag, the flexible fabric bag is filled with the soil body in the bag, each self-expansion filler comprises a flexible section and a self-expansion section, the placing directions of every two adjacent self-expansion fillers are opposite during filling, water absorption mechanisms are arranged on the inner side and the outer side of each self-expansion section respectively, and a plastic plate is arranged on the inner side of each self-expansion section. When the soil body is frozen, the soil body in the self-expansion filler expands, under the constraint effect of the flexible fabric bag, the expansion has a limit and is mainly subjected to horizontal expansion, under the guidance of the inner side plastic plate, the two self-expansion sections move towards the two sides respectively, and the contact effect between the self-expansion sections and the pile foundation is enhanced. On the premise that side friction resistance is not reduced, inhibition of the pile foundation freezing pulling phenomenon is achieved, and the influence of the extreme environment on the pile foundation operation stability is reduced.
本发明提供一种寒区桩基冻害防护方法，包括：在设置桩基的坑槽内叠放若干自膨胀填充物，叠放完成后用土体覆盖；自膨胀填充物包括柔性织物袋和袋内土体，袋内土体填充在柔性织物袋内，自膨胀填充物包括柔性段和自膨胀段，填充时相邻两自膨胀填充物摆放方向相反，自膨胀段内侧和外侧分别设置吸水机构，自膨胀段内侧设置塑性板。土体冻结时，自膨胀填充物内的土体膨胀，在柔性织物袋的束缚作用下，膨胀存有限度且主要发生水平向膨胀，在内侧塑性板的引导下，两自膨胀段分别向两侧移动，与桩基接触作用增强。本发明在不降低侧摩阻力的前提下实现了对桩基冻拔现象的抑制，减小极端环境对桩基运行稳定性的影响。
Cold region pile foundation freeze injury protection method
The invention provides a cold region pile foundation freeze injury protection method which comprises the following steps: stacking a plurality of self-expanding fillers in a pit slot in which a pile foundation is arranged, and covering the pit slot with a soil body after the self-expanding fillers are stacked; each self-expansion filler comprises a flexible fabric bag and a soil body in the bag, the flexible fabric bag is filled with the soil body in the bag, each self-expansion filler comprises a flexible section and a self-expansion section, the placing directions of every two adjacent self-expansion fillers are opposite during filling, water absorption mechanisms are arranged on the inner side and the outer side of each self-expansion section respectively, and a plastic plate is arranged on the inner side of each self-expansion section. When the soil body is frozen, the soil body in the self-expansion filler expands, under the constraint effect of the flexible fabric bag, the expansion has a limit and is mainly subjected to horizontal expansion, under the guidance of the inner side plastic plate, the two self-expansion sections move towards the two sides respectively, and the contact effect between the self-expansion sections and the pile foundation is enhanced. On the premise that side friction resistance is not reduced, inhibition of the pile foundation freezing pulling phenomenon is achieved, and the influence of the extreme environment on the pile foundation operation stability is reduced.
本发明提供一种寒区桩基冻害防护方法，包括：在设置桩基的坑槽内叠放若干自膨胀填充物，叠放完成后用土体覆盖；自膨胀填充物包括柔性织物袋和袋内土体，袋内土体填充在柔性织物袋内，自膨胀填充物包括柔性段和自膨胀段，填充时相邻两自膨胀填充物摆放方向相反，自膨胀段内侧和外侧分别设置吸水机构，自膨胀段内侧设置塑性板。土体冻结时，自膨胀填充物内的土体膨胀，在柔性织物袋的束缚作用下，膨胀存有限度且主要发生水平向膨胀，在内侧塑性板的引导下，两自膨胀段分别向两侧移动，与桩基接触作用增强。本发明在不降低侧摩阻力的前提下实现了对桩基冻拔现象的抑制，减小极端环境对桩基运行稳定性的影响。
Cold region pile foundation freeze injury protection method
一种寒区桩基冻害防护方法
ZHU RUI (Autor:in) / FENG YUQUAN (Autor:in) / ZHOU FENG (Autor:in) / GUO WANLI (Autor:in) / ZHANG LINGKAI (Autor:in) / ZHANG XIAOYING (Autor:in) / WAN ZHIHUI (Autor:in) / CHEN TINGZHU (Autor:in) / DONG XIN (Autor:in) / GUO YANWEI (Autor:in)
10.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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