The invention discloses an anti-subsidence support frame for community foundation pit construction, which comprises cofferdam plates arranged on two sides of a foundation pit, main supports are slidably arranged on the cofferdam plates, the upper and lower adjacent main supports are connected through first connecting columns, and the front and rear adjacent main supports are connected through second connecting columns. An automatic bottom supporting mechanism capable of lifting the main supports is arranged at the bottom of the bottommost main support. When low-degree foundation pit bottom ground subsidence occurs, an electromagnetic valve is controlled through a PLC, hydraulic oil is continuously supplied into a hydraulic cylinder, an ejector rod of the hydraulic cylinder extends downwards, and a contact plate is stably supported at the bottom of a foundation pit, and when high-degree foundation pit bottom ground subsidence occurs, under a band-type brake of a winch, a main support is pulled through a pulling rope, and the hydraulic oil is continuously supplied into the hydraulic cylinder; the height of the framework composed of the main supports is stabilized, the framework is prevented from sinking along with the main supports, the good supporting performance of the framework on the cofferdam plate is guaranteed, manual anti-sinking operation is not needed, and time consumption for maintenance and invested manpower and material resources are avoided.
本发明公开了一种小区基坑建设用的防沉陷支撑架,包括设置在基坑两侧的围堰板,围堰板上滑动设置有主支撑,上下相邻的主支撑之间通过第一连接柱连接,前后相邻的主支撑之间通过第二连接柱相互连接,最底部的主支撑的底部设置有可升高主支撑的自动底支撑机构。当出现低程度的基坑底部地面沉陷时,通过PLC控制器控制电磁阀,持续向液压缸内供入液压油,液压缸的顶杆下伸,接触板稳定支撑在基坑底部,当出现高程度基坑底部地面沉陷,在卷扬机的抱闸下,通过牵引绳牵引主支撑,稳定了由主支撑组成的构架高度,避免其随之沉陷,保障其对围堰板良好的支撑性,无需人工进行防沉陷操作,避免了维护耗时和投入的人力物力。
Anti-subsidence supporting frame for community foundation pit construction
一种小区基坑建设用的防沉陷支撑架
2023-06-23
Patent
Electronic Resource
Chinese
Subsidence and consolidation time of foundation grounds
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