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

Abstract

The invention discloses a device for real-time sensation of a deep foundation pit and disease examination. The device comprises a plurality of first optical fiber sensors, a plurality of second optical fiber sensors, a plurality of third optical fiber sensors, a data analyzing and command issuing device and an intelligent patrol aircraft. The first optical fiber sensors are arranged at measure points on the surrounding earth's surface of the deep foundation pit for real-time sensing sedimentation of the surrounding earth's surface of the deep foundation pit and transmitting the sedimentation value of the sensed surrounding earth's surface of the deep foundation pit to the data analyzing and command issuing device in form of an optical signal; the second optical fiber sensors are arranged above and below a concrete support of the deep foundation pit by way of horizontal penetration and pairing for separately acquiring the stresses and strains of the upper and lower surfaces of the concrete support. The device can solve the technical problem of severe hysteretic nature, inaccuracy caused by the fact that some positions cannot be observed in a near distance and imperfection caused by existence of sensing blind zones in an existing monitoring device.

Description

technical field [0001] The invention belongs to the field of foundation pit engineering, and more particularly relates to a device for real-time sensing 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 resu...

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 device for real-time perception and disease inspection of deep foundation pits. The device 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 presence 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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