一种托底侧压增强桩复合二次增强散体材料构造及工法
By setting a layer of granular material around the lateral pressure reinforced pile and using the inclined body structure to form an embedded interlocking effect, combined with the high-frequency vibration pile driving method, the problem of improving the bearing capacity of the lateral pressure reinforced pile was solved, and the pile side friction force was significantly enhanced and the bearing capacity was greatly improved.
CN117286871BActive Publication Date: 2026-07-17吴葆永
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 吴葆永
- Filing Date
- 2023-11-16
- Publication Date
- 2026-07-17
Smart Images
Figure CN117286871B_ABST
Abstract
本发明公开了一种托底侧压增强桩复合二次增强散体材料构造及工法，构造包括芯桩以及环绕其外周的桩周土层，芯桩和桩周土层之间设置有处理密实的散体材料层，散体材料层的内侧环抱挤压芯桩、外侧被桩周土层环抱挤压，且散体材料层的散体颗粒嵌入桩周土层；芯桩外表面自上而下依次设置有多个纵截面为向外倾斜斜面的斜面体，或者多个纵截面为向内倾斜斜面的斜面体，或者由多个上述两种斜面交替排列构成的锯齿形斜面体。本发明通过托底侧压增强桩复合二次增强散体材料构造增加土对桩外表面的水平挤压力，同时通过斜面体构造把硬颗粒挤压进周边外围土体，通过嵌入咬合作用提高了接触面上的摩擦系数，这两项措施来提高桩侧摩擦力大大提高了桩的承载力。
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