Road collapse wireless monitoring device and system thereof

Abstract

The invention provides a road collapse wireless monitoring device and system thereof, which are installed in a road surface body. The road collapse wireless monitoring device comprises a wireless monitoring main body which comprises a processor, a communication module, and a power supply unit, wherein a detection hole with a downward opening is formed in the wireless monitoring main body, and magnetoresistive sensors are arranged in the detection hole; each magnetoresistive sensor is electrically connected with the processor; a magnetic bar and a detection bar are arranged below the wireless monitoring main body; the upper end of the magnetic bar is inserted into the detection hole; and the lower end of the magnetic bar is connected with the detection bar embedded in the soil body, so that when the detection bar generates displacement due to the change of the soil body, the magnetic bar is driven to generate displacement in the detection hole relative to each magnetoresistive sensor, and the magnetoresistive sensors generate electric signals. Road collapse caused by cavities or lateral displacement of the soil body on the lower portion of the road can be monitored by the road collapse wireless monitoring device and system thereof in real time, and early warnings of different grades can be sent out in combination with the displacement degree; and the device is simple in equipment, low in power consumption, capable of continuously working for a long time after being installed, and convenient to manage and monitor.

Description

technical field [0001] The technical field of road collapse monitoring that the present application relates to, in particular, relates to a wireless road collapse monitoring device and a system thereof. Background technique [0002] Road subsidence is a geological phenomenon in which roads sink downward under the action of natural or human factors and form subsidence pits (holes) on the ground. Urban road subsidence not only increases the risk of traffic accidents and casualties, but also causes nearby building foundations to sink, houses to crack, underground pipelines to be damaged, urban flooding and storm surge disasters to aggravate, etc. [0003] In the context of rapid urban expansion, road subsidence accidents are frequent and frequent, and cases of heavy casualties and losses caused by road surface subsidence occur from time to time. The reasons for road subsidence are very complicated. According to the current statistics and analysis, the reasons for road subsiden...

AI Technical Summary

Problems solved by technology

[0007] ①The road load is too heavy: the original design load can no longer meet the actual situation of the current traffic load, resulting in insufficient bearing capacity of the road surface, which is easy to cause road surface collapse;

[0008] ②Aging, cracking, water seepage and leakage of underground pipelines: long-term erosion of the soil foundation will lead to the loss of foundation soil, resulting in ground subsidence;

[0009] ③Extensive exploitation of groundwater: it will cause a lot of gaps in the rock formation caused by the lack of groundwater to be replenished too late, causing damage to the stratum structure, weakening the compressive load-bearing capacity of the foundation, and thus causing road surface collapse;

[0010] ④ Improper engineering construction: The construction of large underground buildings such as subways can make great use of underground space; while reducing the pressure on the ground surface, it can also damage the road foundation, reduce the pressure resistance of the road surface, and accelerate the road surface collapse; The start of construction also leads to the loosening of the adjacent soil, the increase of the pressure between the pipelines, and even the displacement or large deformation of the underground soil layer. The compression of the soil increases to a certain extent, which may cause the road surface to collapse.

[0015] (1) There is no real-time performance, and it is more difficult to check comprehensively at the same time;

[0016] (2) The operation efficiency is low, the technical application threshold is high and difficult, and professionals are required to handle it;

[0017] (3) The workload is heavy and consumes a lot of manpower and material resources;

[0018] (4) Road diseases caused by slippage between the road surface and the soil cannot be detected;

[0019] (5) The amount of test data is small, and it is difficult to comprehensively evaluate the health of the road

[0020] Existing technologies are difficult to fully realize road subsidence monitoring and early warning, and road managers are faced with the problem of "slow inspection and poor inspection"

Images