A method for real-time perception and disease inspection of deep foundation pits

Abstract

The invention discloses a method for sensing and checking danger of a deep foundation pit in real time. The method comprises the following steps: arranging a plurality of first optical fiber sensors in measured points on the peripheral earth surface of the deep foundation pit to sense settlement of the peripheral earth surface of the deep foundation pit in real time, arranging a plurality of second optical fiber sensors at the top and the bottom of the inside of concrete support in the deep foundation pit in pairs in a horizontal penetration manner to obtain stress and strain of upper and lower surfaces of the concrete support, arranging a plurality of third optical fiber sensors in an underground diaphragm wall in a depth direction of the deep foundation pit to obtain stress and strain of the underground diaphragm wall, sending the obtained data to a data analyzing and command issuing device, judging whether the positions of the corresponding optical fiber sensors are in dangerous state by using the data analyzing and command issuing device, and sending a danger checking command to an unmanned aerial vehicle if the positions of the corresponding optical fiber sensors are in the dangerous state. Through the method, real-time property and comprehensiveness of the monitoring of the deep foundation pit as well as timeliness, accuracy and safety of the checking of the danger can be ensured.

Description

technical field [0001] The invention belongs to the field of foundation pit engineering, and more specifically relates to a method for real-time perception and disease inspection of deep foundation pits. Background technique [0002] As the process of urbanization continues to advance, my country's aboveground land resources are becoming less and less, so they have turned their attention to underground space. In recent years, with the vigorous development of urban rail transit, more and more deep foundation pit projects with deep depth, large span and fast excavation speed have appeared in cities. In addition to the influence of its own characteristics of "big and fast", due to the influence of various factors such as the proximity of tall buildings, the excavated soil from the deep foundation pit was not transported away in time and piled up around the deep foundation pit, and its own construction quality was not up to standard. Safety accidents occur frequently, and the r...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method for real-time perception and disease inspection of deep foundation pits. The method of the present invention can ensure the real-time monitoring of deep foundation pits due to the inaccuracy caused by close-range observation, the incompleteness caused by the existence of blind spots, the inability to quickly and accurately locate the location of potential safety hazards, and the inability to guarantee the personal safety of on-site patrol personnel. and comprehensiveness, as well as the timeliness, accuracy and safety of disease inspection

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