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Construction method for additionally arranging basement in situ in existing connected silo
The construction method comprises the steps that a discharging hopper and a terrace of the existing connected silo are broken, a foundation pit enclosure structure, a newly-added pile foundation and a steel stand column above the newly-added pile foundation are constructed, brackets and vertical embedded parts are installed on the steel stand column, a core raft plate is constructed to be connected with a bearing platform foundation, and a basement is additionally arranged on the foundation. A soil taking hole and a lifting hole are reserved in the core raft, a lifting mechanism is installed, a suspension wire is connected, connection between a bearing platform foundation and an existing pile foundation is cut off, bolts on corbels and steel stand columns are detached, the core raft is lifted through the lifting mechanism and the suspension wire, the bolts on the corbels and the steel stand columns are connected, and a peripheral raft and the core raft are constructed to form a top plate. And the steel stand columns above the top plate are cut off, a rail type soil taking device is installed in the existing connected silo, a basement structure is constructed, a newly-added pile foundation and the steel stand columns are supplemented and constructed at a soil taking hole, and a floor slab is closed. The construction method is safe and reliable in construction, high in unearthing efficiency and suitable for underground space expansion of the existing connected silo.
本发明公开一种既有连体筒仓原位增设地下室的施工方法，破除既有连体筒仓的出料漏斗及地坪，施工基坑围护结构和新增桩基础及其上方的钢立柱，在钢立柱上安装牛腿及竖向预埋件，施工核心筏板与承台基础形成连接，在核心筏板上预留取土洞口和提升孔洞，安装提升机构，连接吊线，切断承台基础与既有桩基础的连接，拆除牛腿与钢立柱上的螺栓，通过提升机构及吊线将核心筏板提升，连接牛腿与钢立柱上的螺栓，施工外围筏板与核心筏板形成顶板，截除顶板以上的钢立柱，在既有连体筒仓内安装轨道式取土装置，施工地下室结构，在取土洞口补充施工新增桩基础及钢立柱并封闭楼板。本发明施工安全、可靠、出土效率高、适用于既有连体筒仓地下空间扩展。
Construction method for additionally arranging basement in situ in existing connected silo
The construction method comprises the steps that a discharging hopper and a terrace of the existing connected silo are broken, a foundation pit enclosure structure, a newly-added pile foundation and a steel stand column above the newly-added pile foundation are constructed, brackets and vertical embedded parts are installed on the steel stand column, a core raft plate is constructed to be connected with a bearing platform foundation, and a basement is additionally arranged on the foundation. A soil taking hole and a lifting hole are reserved in the core raft, a lifting mechanism is installed, a suspension wire is connected, connection between a bearing platform foundation and an existing pile foundation is cut off, bolts on corbels and steel stand columns are detached, the core raft is lifted through the lifting mechanism and the suspension wire, the bolts on the corbels and the steel stand columns are connected, and a peripheral raft and the core raft are constructed to form a top plate. And the steel stand columns above the top plate are cut off, a rail type soil taking device is installed in the existing connected silo, a basement structure is constructed, a newly-added pile foundation and the steel stand columns are supplemented and constructed at a soil taking hole, and a floor slab is closed. The construction method is safe and reliable in construction, high in unearthing efficiency and suitable for underground space expansion of the existing connected silo.
本发明公开一种既有连体筒仓原位增设地下室的施工方法，破除既有连体筒仓的出料漏斗及地坪，施工基坑围护结构和新增桩基础及其上方的钢立柱，在钢立柱上安装牛腿及竖向预埋件，施工核心筏板与承台基础形成连接，在核心筏板上预留取土洞口和提升孔洞，安装提升机构，连接吊线，切断承台基础与既有桩基础的连接，拆除牛腿与钢立柱上的螺栓，通过提升机构及吊线将核心筏板提升，连接牛腿与钢立柱上的螺栓，施工外围筏板与核心筏板形成顶板，截除顶板以上的钢立柱，在既有连体筒仓内安装轨道式取土装置，施工地下室结构，在取土洞口补充施工新增桩基础及钢立柱并封闭楼板。本发明施工安全、可靠、出土效率高、适用于既有连体筒仓地下空间扩展。
Construction method for additionally arranging basement in situ in existing connected silo
既有连体筒仓原位增设地下室的施工方法
XU LEI (author) / PENG CHENXIN (author) / LIU CHENCHEN (author) / LING ZEGAO (author) / YU GUANGYUAN (author) / ZHANG YIZHOU (author)
2023-06-30
Patent
Electronic Resource
Chinese
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