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A platform for research: civil engineering, architecture and urbanism
Bridge pile foundation reinforcing type anti-freezing pulling pile body structure and construction method thereof
The invention relates to the technical field of pile foundation construction, in particular to a bridge pile foundation reinforcing type anti-freezing pulling pile body structure and a construction method thereof, and the bridge pile foundation reinforcing type anti-freezing pulling pile body structure comprises a circular truncated cone, a pile body, a rubber cushion layer, a transverse rod, a vertical rod and a sleeve. The large bottom surface of the circular truncated cone faces upwards, the pile body is arranged above the circular truncated cone, the lower end of the pile body is detachably connected with the upper end of the circular truncated cone, and the diameter of the pile body is smaller than that of the large bottom surface of the circular truncated cone; downward counter force is increased through the area, larger than the bottom of the concrete pile body, of the circular truncated cone, so that the influence of tangential frost heaving force on the pile body structure is reduced, the tangential frost heaving force is generated on the pile body when a soil body is subjected to freeze-thaw circulation, and the soil body is prevented from being damaged. When the tangential frost heaving force is developed to be larger than the friction force between the self weight of the pile body and the pile soil, the circular truncated cone and the soil bodies on the two sides can interact, the resistance is increased, the influence of the frost heaving effect on the pile foundation is weakened, and therefore the safety and durability of the pile foundation are improved.
本发明涉及桩基施工技术领域，具体涉及一种桥梁桩基加固式抗冻拔桩身结构及其施工方法，包括圆台、桩体、橡胶垫层、横杆、竖杆、套筒。圆台的大底面朝上，桩体设置在圆台的上方，桩体的下端和圆台的上端可拆卸连接，桩体的直径小于圆台的大底面直径；橡胶垫层套在桩体上，橡胶垫层的外周面直径小于圆台的大底面直径，本发明通过圆台大于混凝土桩体底部的面积来增加向下的反力，从而减小切向冻拔力对桩身结构的影响，在土体发生冻融循环时，对桩体产生切向冻胀力，当切向冻胀力发展至大于桩体自重与桩土之间摩擦力时，会导致圆台与两侧土体发生相互作用，使抗力增大，减弱冻拔作用对桩基础的影响，从而提升桩基础的安全性和耐久性。
Bridge pile foundation reinforcing type anti-freezing pulling pile body structure and construction method thereof
The invention relates to the technical field of pile foundation construction, in particular to a bridge pile foundation reinforcing type anti-freezing pulling pile body structure and a construction method thereof, and the bridge pile foundation reinforcing type anti-freezing pulling pile body structure comprises a circular truncated cone, a pile body, a rubber cushion layer, a transverse rod, a vertical rod and a sleeve. The large bottom surface of the circular truncated cone faces upwards, the pile body is arranged above the circular truncated cone, the lower end of the pile body is detachably connected with the upper end of the circular truncated cone, and the diameter of the pile body is smaller than that of the large bottom surface of the circular truncated cone; downward counter force is increased through the area, larger than the bottom of the concrete pile body, of the circular truncated cone, so that the influence of tangential frost heaving force on the pile body structure is reduced, the tangential frost heaving force is generated on the pile body when a soil body is subjected to freeze-thaw circulation, and the soil body is prevented from being damaged. When the tangential frost heaving force is developed to be larger than the friction force between the self weight of the pile body and the pile soil, the circular truncated cone and the soil bodies on the two sides can interact, the resistance is increased, the influence of the frost heaving effect on the pile foundation is weakened, and therefore the safety and durability of the pile foundation are improved.
本发明涉及桩基施工技术领域，具体涉及一种桥梁桩基加固式抗冻拔桩身结构及其施工方法，包括圆台、桩体、橡胶垫层、横杆、竖杆、套筒。圆台的大底面朝上，桩体设置在圆台的上方，桩体的下端和圆台的上端可拆卸连接，桩体的直径小于圆台的大底面直径；橡胶垫层套在桩体上，橡胶垫层的外周面直径小于圆台的大底面直径，本发明通过圆台大于混凝土桩体底部的面积来增加向下的反力，从而减小切向冻拔力对桩身结构的影响，在土体发生冻融循环时，对桩体产生切向冻胀力，当切向冻胀力发展至大于桩体自重与桩土之间摩擦力时，会导致圆台与两侧土体发生相互作用，使抗力增大，减弱冻拔作用对桩基础的影响，从而提升桩基础的安全性和耐久性。
Bridge pile foundation reinforcing type anti-freezing pulling pile body structure and construction method thereof
一种桥梁桩基加固式抗冻拔桩身结构及其施工方法
YAN YIHUI (author) / XU ANHUA (author) / CHANG DAN (author) / FANG JIANHONG (author) / LI YUANJI (author) / LI XIANG (author) / WANG XINYAN (author) / MA JIANHUA (author) / ZHAO LIHUA (author) / LI XIA (author)
2023-08-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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