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A platform for research: civil engineering, architecture and urbanism
Combined pile and combined pile construction method
The invention provides a combined pile and a combined pile construction method, and relates to the technical field of pile foundation construction. The combined pile comprises a first pile body, a second pile body and a third pile body, and the first pile body, the second pile body and the third pile body are sequentially connected so that the combined pile can be in a linear shape. The diameter of the first pile body, the diameter of the second pile body and the diameter of the third pile body are gradually increased in sequence, and the first pile body is used for being buried in a soft soil layer, and the axial length of the first pile body is not smaller than the depth of the soft soil layer. According to the combined pile, the friction force between the combined pile and the soft soil layer is reduced through the first pile body, so that the combined pile is prevented from being driven by a soil body of the sunk soft soil layer to sink; and the friction force between a compression-resistant pile and an effective soil layer is increased through the second pile body and the third pile body which are larger in diameter, and then the compression-resistant effect of the combined pile is improved. In addition, the combined pile can generate pulling resistance at least through the pressure between the upper end face of the third pile body and the soil body of the effective soil layer, and then the pulling resistance effect is improved.
本发明提供一种组合桩及组合桩施工方法，涉及桩基施工技术领域。该组合桩包括第一桩体、第二桩体和第三桩体，第一桩体、第二桩体和第三桩体依次连接以使组合桩呈一字形；第一桩体的直径、第二桩体的直径和第三桩体的直径依次递增，第一桩体用于埋设于软弱土层中且其轴向长度不小于软弱土层的深度。该组合桩通过第一桩体减小组合桩与软弱土层之间的摩擦力，从而防止组合桩被下沉的软弱土层的土体带动而下沉，且通过直径更大的第二桩体、第三桩体增加了该抗压桩与有效土层之间的摩擦力，进而提升该组合桩的抗压效果。此外，该组合桩至少可以通过第三桩体的上端面与有效土层的土体之间的压力产生抗拔力，进而提升抗拔效果。
Combined pile and combined pile construction method
The invention provides a combined pile and a combined pile construction method, and relates to the technical field of pile foundation construction. The combined pile comprises a first pile body, a second pile body and a third pile body, and the first pile body, the second pile body and the third pile body are sequentially connected so that the combined pile can be in a linear shape. The diameter of the first pile body, the diameter of the second pile body and the diameter of the third pile body are gradually increased in sequence, and the first pile body is used for being buried in a soft soil layer, and the axial length of the first pile body is not smaller than the depth of the soft soil layer. According to the combined pile, the friction force between the combined pile and the soft soil layer is reduced through the first pile body, so that the combined pile is prevented from being driven by a soil body of the sunk soft soil layer to sink; and the friction force between a compression-resistant pile and an effective soil layer is increased through the second pile body and the third pile body which are larger in diameter, and then the compression-resistant effect of the combined pile is improved. In addition, the combined pile can generate pulling resistance at least through the pressure between the upper end face of the third pile body and the soil body of the effective soil layer, and then the pulling resistance effect is improved.
本发明提供一种组合桩及组合桩施工方法，涉及桩基施工技术领域。该组合桩包括第一桩体、第二桩体和第三桩体，第一桩体、第二桩体和第三桩体依次连接以使组合桩呈一字形；第一桩体的直径、第二桩体的直径和第三桩体的直径依次递增，第一桩体用于埋设于软弱土层中且其轴向长度不小于软弱土层的深度。该组合桩通过第一桩体减小组合桩与软弱土层之间的摩擦力，从而防止组合桩被下沉的软弱土层的土体带动而下沉，且通过直径更大的第二桩体、第三桩体增加了该抗压桩与有效土层之间的摩擦力，进而提升该组合桩的抗压效果。此外，该组合桩至少可以通过第三桩体的上端面与有效土层的土体之间的压力产生抗拔力，进而提升抗拔效果。
Combined pile and combined pile construction method
组合桩及组合桩施工方法
PENG GUIJIAO (author) / PENG YING (author) / CHEN HAITONG (author) / TAN YANJI (author) / LI HUAYUAN (author) / CHEN SONGBIN (author)
2021-07-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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