A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Demolition method for steel-concrete combined inner support of deep foundation pit
The invention relates to a deep foundation pit reinforced concrete combined inner support dismantling method which comprises the following steps: dismantling a reinforced concrete support, segmenting the reinforced concrete support, supporting a temporary support at the lower part of each segment, and cutting and dismantling the reinforced concrete support segments in a static cutting manner; the steel diagonal braces and the steel angle braces are dismantled; and the middle partition wall is dismantled, after structural floor slabs on the two sides of the middle partition wall are constructed, the middle partition wall is segmented, and the middle partition wall is cut and dismantled in a segmented mode from the middle to the two sides in a static force cutting mode. The technical problem that in the prior art, the dismantling safety of the steel-concrete combined inner support is low, and the influence on the surrounding environment is large is solved. The reinforced concrete support and the middle partition wall are dismantled by adopting a static cutting method, and concrete is cut by adopting a chain saw, so that the adverse effect of vibration on surrounding building facilities is avoided; and the steel support is dismantled in a grading dismantling mode, so that excessive release of instant pre-stress is avoided.
本发明涉及一种深基坑钢混组合内支撑拆除方法，包括如下步骤：拆除钢筋混凝土支撑，对该钢筋混凝土支撑进行分段、并于每段下部支撑临时支撑，采用静力切割的方式对该钢筋混凝土支撑分段进行切割拆除；拆除钢对撑和钢角撑；拆除中隔墙，在施工完中隔墙两侧的结构楼板之后，对该中隔墙进行分段，采用静力切割的方式自中间向两边分段切割拆除该中隔墙。本发明解决了现有技术中钢混组合内支撑拆除安全性低对周边环境影响大的技术问题。本发明的钢筋混凝土支撑及中隔壁墙采用静力切割方法进行拆除，采用链条锯切割混凝土，避免振动对周边建筑设施的不利影响；并利用分级拆除的方式拆除钢支撑，以避免瞬间预加应力释放过大。
Demolition method for steel-concrete combined inner support of deep foundation pit
The invention relates to a deep foundation pit reinforced concrete combined inner support dismantling method which comprises the following steps: dismantling a reinforced concrete support, segmenting the reinforced concrete support, supporting a temporary support at the lower part of each segment, and cutting and dismantling the reinforced concrete support segments in a static cutting manner; the steel diagonal braces and the steel angle braces are dismantled; and the middle partition wall is dismantled, after structural floor slabs on the two sides of the middle partition wall are constructed, the middle partition wall is segmented, and the middle partition wall is cut and dismantled in a segmented mode from the middle to the two sides in a static force cutting mode. The technical problem that in the prior art, the dismantling safety of the steel-concrete combined inner support is low, and the influence on the surrounding environment is large is solved. The reinforced concrete support and the middle partition wall are dismantled by adopting a static cutting method, and concrete is cut by adopting a chain saw, so that the adverse effect of vibration on surrounding building facilities is avoided; and the steel support is dismantled in a grading dismantling mode, so that excessive release of instant pre-stress is avoided.
本发明涉及一种深基坑钢混组合内支撑拆除方法，包括如下步骤：拆除钢筋混凝土支撑，对该钢筋混凝土支撑进行分段、并于每段下部支撑临时支撑，采用静力切割的方式对该钢筋混凝土支撑分段进行切割拆除；拆除钢对撑和钢角撑；拆除中隔墙，在施工完中隔墙两侧的结构楼板之后，对该中隔墙进行分段，采用静力切割的方式自中间向两边分段切割拆除该中隔墙。本发明解决了现有技术中钢混组合内支撑拆除安全性低对周边环境影响大的技术问题。本发明的钢筋混凝土支撑及中隔壁墙采用静力切割方法进行拆除，采用链条锯切割混凝土，避免振动对周边建筑设施的不利影响；并利用分级拆除的方式拆除钢支撑，以避免瞬间预加应力释放过大。
Demolition method for steel-concrete combined inner support of deep foundation pit
深基坑钢混组合内支撑拆除方法
HE JUN (author) / HU XIANGGANG (author) / SONG ZHEN (author) / ZHANG MIN (author) / LUO SHUJIAN (author) / WANG YINGZHI (author) / CHAI XIAOMING (author)
2023-10-13
Patent
Electronic Resource
Chinese
Demolition construction method for steel-concrete combined inner support of deep foundation pit
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