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A platform for research: civil engineering, architecture and urbanism
Cover-excavation top-down construction device and construction method
The invention provides a top-down cover-excavation construction device and method, and belongs to the technical field of engineering construction. When the cover-excavation top-down construction method is adopted for construction, the supporting capacity can be met only through multiple stand column pile foundations, and differential settlement between the stand column pile foundations becomes obvious. According to the cover-excavation reverse construction method construction device and method, the base, the pulling-out mechanism, the section disassembling mechanism, the clamping mechanism and the anchorage device are included, the base comprises the fixed base and the movable base, the movable base is provided with the stand column hole and the sleeve hole, the movable base can horizontally move in the fixed base to adjust the position, and therefore the axis deviation of the stand column hole and the axis deviation of a stand column are adjusted; the pulling-out mechanism, the section disassembling mechanism and the clamping mechanism can be matched with one another to recycle and transfer the auxiliary sleeve set in the stand column pile, after recycling, an anchorage device is installed in a sleeve hole, and an anchor cable of the stand column pile is tensioned through the anchorage device to form pulling force. And through the cooperation of the base and the anchorage device, the differential settlement phenomenon among a plurality of stand column pile foundations can be effectively controlled, and the engineering quality is improved.
本发明提供一种盖挖逆作法施工装置及施工方法，属于工程施工技术领域。采用盖挖逆作法施工时，需要较多的立柱桩基才能满足支承能力，立柱桩基之间的差异沉降会变得明显。本发明的一种盖挖逆作法施工装置及施工方法，包括基座、拔出机构、拆段机构、夹持机构和锚具，基座包括固定座和活动座，活动座上设有立柱孔和套管孔，活动座可在固定座内平移调整位置，从而调整立柱孔及立柱的轴线偏移，拔出机构、拆段机构和夹持机构可相互配合对立柱桩内的辅助用套管组回收周转，回收后，套管孔安装锚具，由锚具对立柱桩的锚索进行张拉，形成拉力。通过基座和锚具的配合，可对多个立柱桩基之间的差异沉降现象进行有效的控制，提升工程质量。
Cover-excavation top-down construction device and construction method
The invention provides a top-down cover-excavation construction device and method, and belongs to the technical field of engineering construction. When the cover-excavation top-down construction method is adopted for construction, the supporting capacity can be met only through multiple stand column pile foundations, and differential settlement between the stand column pile foundations becomes obvious. According to the cover-excavation reverse construction method construction device and method, the base, the pulling-out mechanism, the section disassembling mechanism, the clamping mechanism and the anchorage device are included, the base comprises the fixed base and the movable base, the movable base is provided with the stand column hole and the sleeve hole, the movable base can horizontally move in the fixed base to adjust the position, and therefore the axis deviation of the stand column hole and the axis deviation of a stand column are adjusted; the pulling-out mechanism, the section disassembling mechanism and the clamping mechanism can be matched with one another to recycle and transfer the auxiliary sleeve set in the stand column pile, after recycling, an anchorage device is installed in a sleeve hole, and an anchor cable of the stand column pile is tensioned through the anchorage device to form pulling force. And through the cooperation of the base and the anchorage device, the differential settlement phenomenon among a plurality of stand column pile foundations can be effectively controlled, and the engineering quality is improved.
本发明提供一种盖挖逆作法施工装置及施工方法，属于工程施工技术领域。采用盖挖逆作法施工时，需要较多的立柱桩基才能满足支承能力，立柱桩基之间的差异沉降会变得明显。本发明的一种盖挖逆作法施工装置及施工方法，包括基座、拔出机构、拆段机构、夹持机构和锚具，基座包括固定座和活动座，活动座上设有立柱孔和套管孔，活动座可在固定座内平移调整位置，从而调整立柱孔及立柱的轴线偏移，拔出机构、拆段机构和夹持机构可相互配合对立柱桩内的辅助用套管组回收周转，回收后，套管孔安装锚具，由锚具对立柱桩的锚索进行张拉，形成拉力。通过基座和锚具的配合，可对多个立柱桩基之间的差异沉降现象进行有效的控制，提升工程质量。
Cover-excavation top-down construction device and construction method
一种盖挖逆作法施工装置及施工方法
RONG YAO (author) / LIU ZHIYUN (author) / SUN YANG (author) / XU CHANGJIE (author) / DING HAIBIN (author) / ZHANG CHENGKE (author)
2023-10-31
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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