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Installation process of support lowering system for covered excavation of subway deep foundation pit
The invention discloses an installation process of a support lowering system for covered excavation of a subway deep foundation pit. A support system comprises a steel support piece which is installedon a cover plate of the foundation pit, L-shaped bolts are pre-buried in the bottom of the cover plate of the foundation pit, an I-shaped steel rail of an electric hoist is fixed through the L-shapedbolts, the steel support piece is conveyed to a designated position through the electric hoist; capital-omega-shaped lifting hooks are pre-buried in the cover plate, the number of the capital-omega-shaped lifting hooks is at least two, the capital-omega-shaped lifting hooks are evenly distributed; one capital-omega-shaped lifting hook is pre-buried on the cover plate and at the position of each steel support standard knot; a support bracket is mounted on an enclosure structure of the foundation pit; and the support bracket is arranged below the steel support piece, and the movable end is fixed through a plug iron. According to the installation process of the support lowering system for covered excavation of the subway deep foundation pit, the safety is ensured, the cost is saved, the installation efficiency of steel support lowering for a covered excavation section is improved, and the construction progress is ensured.
本发明公开一种地铁深基坑盖挖下支撑系统安装工艺，所述支撑系统包括安装在基坑的盖板上的钢支撑件，基坑的盖板底部预埋有“L”形螺栓，通过“L”形螺栓固定电动葫芦的工字钢轨道，并通过电动葫芦将钢支撑件运送至指定位置；盖板上预埋有“几”字形吊钩，吊钩的数量为至少两个，且均匀分布；每个钢支撑标准节位置处的盖板上预埋有一个吊钩；基坑的围护结构上安装有支撑托架；支撑托架设置在钢支撑件下面，活动端通过塞铁固定；其保证安全，节约费用，提高盖挖段下钢支撑的安装效率，保证施工进度。
Installation process of support lowering system for covered excavation of subway deep foundation pit
The invention discloses an installation process of a support lowering system for covered excavation of a subway deep foundation pit. A support system comprises a steel support piece which is installedon a cover plate of the foundation pit, L-shaped bolts are pre-buried in the bottom of the cover plate of the foundation pit, an I-shaped steel rail of an electric hoist is fixed through the L-shapedbolts, the steel support piece is conveyed to a designated position through the electric hoist; capital-omega-shaped lifting hooks are pre-buried in the cover plate, the number of the capital-omega-shaped lifting hooks is at least two, the capital-omega-shaped lifting hooks are evenly distributed; one capital-omega-shaped lifting hook is pre-buried on the cover plate and at the position of each steel support standard knot; a support bracket is mounted on an enclosure structure of the foundation pit; and the support bracket is arranged below the steel support piece, and the movable end is fixed through a plug iron. According to the installation process of the support lowering system for covered excavation of the subway deep foundation pit, the safety is ensured, the cost is saved, the installation efficiency of steel support lowering for a covered excavation section is improved, and the construction progress is ensured.
本发明公开一种地铁深基坑盖挖下支撑系统安装工艺，所述支撑系统包括安装在基坑的盖板上的钢支撑件，基坑的盖板底部预埋有“L”形螺栓，通过“L”形螺栓固定电动葫芦的工字钢轨道，并通过电动葫芦将钢支撑件运送至指定位置；盖板上预埋有“几”字形吊钩，吊钩的数量为至少两个，且均匀分布；每个钢支撑标准节位置处的盖板上预埋有一个吊钩；基坑的围护结构上安装有支撑托架；支撑托架设置在钢支撑件下面，活动端通过塞铁固定；其保证安全，节约费用，提高盖挖段下钢支撑的安装效率，保证施工进度。
Installation process of support lowering system for covered excavation of subway deep foundation pit
一种地铁深基坑盖挖下支撑系统安装工艺
ZHOU WEISHAN (author) / GENG SHENGCHUN (author) / XING MINGQUAN (author) / HU CHENGZHEN (author) / YAN WENLIANG (author) / WANG HAIBING (author) / LI XIA (author) / SUN HONGFEI (author) / WANG YULIN (author) / QI ZHENYU (author)
2020-07-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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