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Construction method for supporting and underneath penetrating tower crane foundation in narrow foundation pit
The invention relates to a construction method for supporting and underneath penetrating a tower crane foundation in a narrow foundation pit. The construction method comprises the steps that firstly, a plurality of cast-in-place piles are driven into a preset installation position; secondly, bearing platform construction is conducted on the tops of the cast-in-place piles, and a tower crane is installed on a bearing platform; thirdly, earthwork is excavated downwards, and meanwhile construction of the first support is conducted after first steel bars of the first support are placed at the first preset depth; fourthly, the earthwork continues to be excavated to a second preset depth, a second steel bar of a second support is transported to the position between the cast-in-place piles located at the second preset depth in a segmented mode through the conveying assembly, and construction of the second support is conducted; and fifthly, after the earthwork is excavated downwards to a preset position, concrete is poured on the bottom face for solidification. The device has the effects that the second support safely penetrates through the cast-in-place pile, collision between the second support and the cast-in-place pile is reduced, and therefore the accident risk is reduced.
本申请涉及一种狭窄基坑内支撑下穿塔吊基础的施工方法，所述施工方法包括：步骤一：在预定安装位置打入多根灌注桩；步骤二：在灌注桩顶部进行承台施工，并在承台上安装塔吊；步骤三：向下开挖土方，同时在第一预定深度放入第一支撑的第一钢筋后进行第一支撑的施工；步骤四：继续开挖土方直至第二预定深度，并使用输送组件将第二支撑的第二钢筋分段运输至位于第二预定深度的灌注桩之间，进行第二支撑的施工；步骤五：下挖土方到预定位置后，对底面浇注混凝土进行固化。本申请具有使第二支撑安全穿过灌注桩，减少与灌注桩之间碰撞从而减少事故风险的效果。
Construction method for supporting and underneath penetrating tower crane foundation in narrow foundation pit
The invention relates to a construction method for supporting and underneath penetrating a tower crane foundation in a narrow foundation pit. The construction method comprises the steps that firstly, a plurality of cast-in-place piles are driven into a preset installation position; secondly, bearing platform construction is conducted on the tops of the cast-in-place piles, and a tower crane is installed on a bearing platform; thirdly, earthwork is excavated downwards, and meanwhile construction of the first support is conducted after first steel bars of the first support are placed at the first preset depth; fourthly, the earthwork continues to be excavated to a second preset depth, a second steel bar of a second support is transported to the position between the cast-in-place piles located at the second preset depth in a segmented mode through the conveying assembly, and construction of the second support is conducted; and fifthly, after the earthwork is excavated downwards to a preset position, concrete is poured on the bottom face for solidification. The device has the effects that the second support safely penetrates through the cast-in-place pile, collision between the second support and the cast-in-place pile is reduced, and therefore the accident risk is reduced.
本申请涉及一种狭窄基坑内支撑下穿塔吊基础的施工方法，所述施工方法包括：步骤一：在预定安装位置打入多根灌注桩；步骤二：在灌注桩顶部进行承台施工，并在承台上安装塔吊；步骤三：向下开挖土方，同时在第一预定深度放入第一支撑的第一钢筋后进行第一支撑的施工；步骤四：继续开挖土方直至第二预定深度，并使用输送组件将第二支撑的第二钢筋分段运输至位于第二预定深度的灌注桩之间，进行第二支撑的施工；步骤五：下挖土方到预定位置后，对底面浇注混凝土进行固化。本申请具有使第二支撑安全穿过灌注桩，减少与灌注桩之间碰撞从而减少事故风险的效果。
Construction method for supporting and underneath penetrating tower crane foundation in narrow foundation pit
一种狭窄基坑内支撑下穿塔吊基础的施工方法
GONG YONG (author) / HUANG JIANCHAO (author) / CHEN LIEPENG (author) / ZHENG YIWEN (author)
2024-01-23
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Tower crane foundation for foundation pit and construction method of tower crane foundation
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