Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pre-righting hole-forming construction method for extremely-hard inclined rock large-diameter pile
The invention discloses a pre-righting hole-forming construction method for a super-hard inclined rock large-diameter pile. The pre-righting hole-forming construction method comprises the following steps that (1) a center pillar is specially surveyed; (2) a wall protection pile hole is drilled in the outer edge of the center pillar drill hole on the opposite side of the bedrock to the depth of the bedrock in a jumping mode; then a thick-wall steel pipe is put down in the wall protection pile hole; (3) retaining pile occlusion holes are drilled in the jumping intervals, and the thick-wall steel pipes are lowered after drilling is completed; (4) connecting rings are hung between the hooks of the adjacent thick-wall steel pipes; (5) filling a soilbag into a gap between the thick-wall steel pipe and the retaining wall pile hole, filling silty-fine sand, and vibrating and compacting; (6) drilling the center pillar and following the pile casing; (7) middle stand column construction; and (8) recycling the auxiliary equipment on the outer side of the drilling hole of the middle stand column. The method has the advantages that 1, the thick-wall steel pipe is used as a supporting material, so that the construction is fast, and the perpendicularity is ensured; the sand pumping technology is adopted to dismantle auxiliary devices, and dismantling is convenient and fast; and 3, the safety risk caused by mutual locking and hooking of underground components is effectively avoided.
本发明公开一种极硬斜岩大直径桩预扶正成孔施工方法，步骤如下：(1).中立柱专勘；(2).在基岩对侧中立柱钻孔的外边缘跳打护壁桩孔至基岩深度；然后在护壁桩孔内下放厚壁钢管；(3).在跳打间隔处钻进护壁桩咬合孔，钻孔完成后也下放厚壁钢管；(4).相邻的厚壁钢管的挂钩间挂上连接环；(5).在厚壁钢管与护壁桩孔的间隙处塞进土工袋、填筑粉细砂并振动密实；(6).中立柱钻孔并跟进护筒；(7).中立柱施工；(8).中立柱钻孔外侧辅助设备的回收。本发明的优点是：1.采用了厚壁钢管作为支撑材料，施工快捷，垂直度得到保证；2.采用抽砂技术拆除辅助设置，拆除便捷；3.有效避免了地下构件相互锁紧、钩连诱发的安全风险。
Pre-righting hole-forming construction method for extremely-hard inclined rock large-diameter pile
The invention discloses a pre-righting hole-forming construction method for a super-hard inclined rock large-diameter pile. The pre-righting hole-forming construction method comprises the following steps that (1) a center pillar is specially surveyed; (2) a wall protection pile hole is drilled in the outer edge of the center pillar drill hole on the opposite side of the bedrock to the depth of the bedrock in a jumping mode; then a thick-wall steel pipe is put down in the wall protection pile hole; (3) retaining pile occlusion holes are drilled in the jumping intervals, and the thick-wall steel pipes are lowered after drilling is completed; (4) connecting rings are hung between the hooks of the adjacent thick-wall steel pipes; (5) filling a soilbag into a gap between the thick-wall steel pipe and the retaining wall pile hole, filling silty-fine sand, and vibrating and compacting; (6) drilling the center pillar and following the pile casing; (7) middle stand column construction; and (8) recycling the auxiliary equipment on the outer side of the drilling hole of the middle stand column. The method has the advantages that 1, the thick-wall steel pipe is used as a supporting material, so that the construction is fast, and the perpendicularity is ensured; the sand pumping technology is adopted to dismantle auxiliary devices, and dismantling is convenient and fast; and 3, the safety risk caused by mutual locking and hooking of underground components is effectively avoided.
本发明公开一种极硬斜岩大直径桩预扶正成孔施工方法，步骤如下：(1).中立柱专勘；(2).在基岩对侧中立柱钻孔的外边缘跳打护壁桩孔至基岩深度；然后在护壁桩孔内下放厚壁钢管；(3).在跳打间隔处钻进护壁桩咬合孔，钻孔完成后也下放厚壁钢管；(4).相邻的厚壁钢管的挂钩间挂上连接环；(5).在厚壁钢管与护壁桩孔的间隙处塞进土工袋、填筑粉细砂并振动密实；(6).中立柱钻孔并跟进护筒；(7).中立柱施工；(8).中立柱钻孔外侧辅助设备的回收。本发明的优点是：1.采用了厚壁钢管作为支撑材料，施工快捷，垂直度得到保证；2.采用抽砂技术拆除辅助设置，拆除便捷；3.有效避免了地下构件相互锁紧、钩连诱发的安全风险。
Pre-righting hole-forming construction method for extremely-hard inclined rock large-diameter pile
一种极硬斜岩大直径桩预扶正成孔施工方法
YANG JIANJUN (Autor:in) / DAI WUKUI (Autor:in) / ZHAO ZHONGLIANG (Autor:in) / ZHANG JIAN (Autor:in) / CHE JINZE (Autor:in) / LIU ZIWEI (Autor:in) / GUO RAN (Autor:in) / ZHANG HONGYANG (Autor:in) / XING YUESHAN (Autor:in) / LIN HONGXU (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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