Foundation pit deformation monitoring device

Abstract

The invention relates to a foundation pit deformation monitoring device. The device is characterized by comprising a fixed end and a monitoring component arranged at the fixed end, wherein the monitoring component comprises a barrel-shaped object fixed at the fixed end, a conductive sliding block arranged in the barrel-shaped object in a sliding mode, a conductive ring arranged in the middle of an inner cavity of the barrel-shaped object and a detection control device, the end, away from the fixed end, of the conductive sliding block is connected with a detection rod, and the conductive ring and the conductive sliding block are connected with the detection control device through wires. Compared with the prior art, the foundation pit deformation monitoring device has the advantages that full detection can be continuously carried out in real time, and a dangerous section alarm can be timely sent out before a collapse accident occurs.

Description

technical field [0001] The invention relates to a deformation monitoring technology, in particular to a deformation monitoring technology of building foundation pits. Background technique [0002] With the rapid development of the domestic economy, foundation pit support for large-scale and high-rise structure construction continues to emerge. Affected by uncertain factors, serious accidents of foundation pit support structure collapse will occur from time to time, causing serious damage to the life and property of the country and the people. loss. For this reason, people use some monitoring and alarming methods to warn before the collapse accident occurs. For the crack detection of foundation pit support structure, tools such as scale, vernier caliper, coordinate grid plate, crack meter and crack meter are mainly used. To carry out detection, the process needs to conduct crack investigation on buildings (structures) and roads within the scope of its influence before the co...

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Problems solved by technology

[0003] The above methods are not easy to realize the continuous monitoring of cracks in the foundation pit support structure, and all of them require monitoring personnel to go to the site for regular or irregular monitoring. Only representative cracks are monitored, which has certain limitations and is not easy to carry out comprehensive and accurate monitoring. The real-time monitoring and high work intensity, especially during the excavation and use process, due to overloading, over-excavation, water penetration, landslides, uplifts, overturning, etc., cause local cracks to quickly dislocate and develop cracks in the support of the foundation pit, the above mentioned The current monitoring method fails to inform the workers around the collapsed surface to evacuate the dangerous area in a very short time (within a few seconds)

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