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A platform for research: civil engineering, architecture and urbanism
Rear joint bar spiral expanded-base combined pile and construction technology
The invention discloses a rear joint bar spiral bottom expanding combined pile and a construction technology, solves the problem that part of combined piles cannot be implanted in place in the prior art, and has the beneficial effects that it is guaranteed that core piles are accurately implanted in place, the bearing capacity of the combined piles is improved, and it is effectively guaranteed that the core piles of the combined piles are implanted in place. According to the specific scheme, the rear joint bar spiral bottom expanding combined pile comprises a peripheral reinforcing layer constructed on the peripheral side of a drill hole, the peripheral reinforcing layer is a dry powder peripheral reinforcing layer, a spiral core layer is constructed in the peripheral reinforcing layer, the bottom of the spiral core layer is inserted into a core bottom expanding layer, and the length of the core bottom expanding layer is smaller than that of the spiral core layer; the diameter of the core bottom expanding layer is larger than that of the peripheral reinforcing layer, the pile head protection layer is arranged on the top of the spiral core layer, the length of the pile head protection layer is smaller than that of the spiral core layer, and the diameter of the pile head protection layer is larger than or equal to that of the spiral core layer. And the rear joint bar spiral expanded-base combined pile is formed.
本发明公开了一种后插筋螺旋扩底组合桩及施工工艺，解决了现有技术中部分组合桩存在无法植入到位的问题，具有保证芯桩准确植入到位、提高组合桩承载能力有效保证组合桩芯桩植入到位的有益效果，具体方案如下：一种后插筋螺旋扩底组合桩，包括施工于钻孔周侧的外围加强层，外围加强层为干粉外围加强层，外围加强层内施工有螺旋核心层，螺旋核心层底部插入至核心扩底层中，核心扩底层的长度小于螺旋核心层的长度，核心扩底层的直径大于外围加强层的直径，螺旋核心层顶部为桩头保护层，桩头保护层的长度小于螺旋核心层的长度，桩头保护层的直径大于或等于螺旋核心层的直径，钢筋笼竖向插入桩头保护层和核心扩底层中，形成后插筋螺旋扩底组合桩。
Rear joint bar spiral expanded-base combined pile and construction technology
The invention discloses a rear joint bar spiral bottom expanding combined pile and a construction technology, solves the problem that part of combined piles cannot be implanted in place in the prior art, and has the beneficial effects that it is guaranteed that core piles are accurately implanted in place, the bearing capacity of the combined piles is improved, and it is effectively guaranteed that the core piles of the combined piles are implanted in place. According to the specific scheme, the rear joint bar spiral bottom expanding combined pile comprises a peripheral reinforcing layer constructed on the peripheral side of a drill hole, the peripheral reinforcing layer is a dry powder peripheral reinforcing layer, a spiral core layer is constructed in the peripheral reinforcing layer, the bottom of the spiral core layer is inserted into a core bottom expanding layer, and the length of the core bottom expanding layer is smaller than that of the spiral core layer; the diameter of the core bottom expanding layer is larger than that of the peripheral reinforcing layer, the pile head protection layer is arranged on the top of the spiral core layer, the length of the pile head protection layer is smaller than that of the spiral core layer, and the diameter of the pile head protection layer is larger than or equal to that of the spiral core layer. And the rear joint bar spiral expanded-base combined pile is formed.
本发明公开了一种后插筋螺旋扩底组合桩及施工工艺，解决了现有技术中部分组合桩存在无法植入到位的问题，具有保证芯桩准确植入到位、提高组合桩承载能力有效保证组合桩芯桩植入到位的有益效果，具体方案如下：一种后插筋螺旋扩底组合桩，包括施工于钻孔周侧的外围加强层，外围加强层为干粉外围加强层，外围加强层内施工有螺旋核心层，螺旋核心层底部插入至核心扩底层中，核心扩底层的长度小于螺旋核心层的长度，核心扩底层的直径大于外围加强层的直径，螺旋核心层顶部为桩头保护层，桩头保护层的长度小于螺旋核心层的长度，桩头保护层的直径大于或等于螺旋核心层的直径，钢筋笼竖向插入桩头保护层和核心扩底层中，形成后插筋螺旋扩底组合桩。
Rear joint bar spiral expanded-base combined pile and construction technology
一种后插筋螺旋扩底组合桩及施工工艺
LI JIANMING (author) / SONG YIZHONG (author) / CHENG HAITAO (author) / LIU BIN (author) / YU YUE (author) / LI QUAN (author) / SUN KAIXUAN (author) / ZHANG XIAOYAN (author) / LI TIANYU (author) / SUN YONGMEI (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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