Foundation pit excavation state monitoring system and method based on laser range finder networking

Abstract

The invention provides a foundation pit excavation state monitoring system and method based on laser range finder networking, and belongs to the field of earth excavation. A detection unit comprises multiple laser range finders; the multiple laser range finders are uniformly erected on the side face of a crown beam of an excavated foundation pit or the lower part of a support beam; a first wireless transmission module is packaged in each laser range finder; each laser range finder is use for acquiring earth excavation basic information at a certain time in a certain section, feeding back the earth excavation basic information to a monitoring unit through the first wireless transmission modules, and meanwhile, receiving a remote control command of the monitoring unit through the first wireless transmission modules so as to execute active / passive control commands; and the monitoring unit comprises a second wireless transmission module, a data processing and analyzing module, a networkingcontrol module, a monitoring data display module, a monitoring data storage module and a monitoring and early earning module. According to the foundation pit excavation state monitoring system and method based on laser range finder networking provided by the invention, the speed of acquiring the earth excavation state is fast, the data processing difficulty is low, and the application cost is low.

Description

technical field [0001] The invention belongs to the field of earthwork excavation, and in particular relates to a system and method for monitoring the excavation state of a foundation pit based on a laser range finder network. Background technique [0002] As the development of the underground space of the building is getting higher and higher, the depth of the deep foundation pit is getting bigger and bigger, and its safety has become the focus of attention of all parties. The safety of foundation pit engineering mainly has two major components: 1. The safety of the foundation pit support system, mainly whether the support system itself can bear the load of the whole process, so as to ensure that the foundation pit does not collapse during construction; 2. The safety of important structures is already in the vicinity of the foundation pit. When the deep foundation pit is adjacent to ground roads, buildings, and underground urban rail transit, improper design and constructio...

AI Technical Summary

Problems solved by technology

In the traditional construction management of foundation pit engineering, although a variety of monitoring equipment is used, manual or automated equipment monitors and collects the data values ​​of the foundation pit support and the safety monitoring points of surrounding structures every day for feedback and analysis. The most important factor in the safety problem: earth excavation without any monitoring or quantitative data

[0004] For a long time, earthwork excavation has been managed by the construction unit, and monitoring information has been provided by the monitoring unit. There is a problem that the information of the two units cannot be fully integrated or the consistency of the integration is not enough

When a foundation pit safety problem arises, the earthwork excavation information and monitoring information that they are responsible for cannot be integrated together, and often when the source of the problem is traced, there is a problem that the information consistency is poor and analysis cannot be carried out

In addition, the earthwork excavation process is often carried out at night, and the construction unit personnel cannot accurately measure the earthwork excavation status information at a certain location at a certain time

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