CN201680823U

CN201680823U - Dynamic measuring device for roadway surrounding rock deformation

Info

Publication number: CN201680823U
Application number: CN2010202035483U
Authority: CN
Inventors: 许兴亮
Original assignee: China University of Mining and Technology Beijing CUMTB
Current assignee: China University of Mining and Technology Beijing CUMTB
Priority date: 2010-05-21
Filing date: 2010-05-21
Publication date: 2010-12-22
Anticipated expiration: 2020-05-21

Abstract

A dynamic measurement device for the deformation of surrounding rock in a roadway is suitable for real-time measurement, data storage, image display and data communication of the deformation of the surrounding rock in the roadway. It includes multiple laser ranging sensors arranged at intervals on the side and top of the roadway. The multiple laser ranging sensors on the side and top of the roadway are distributed in pairs on the same section. Each laser ranging sensor is connected to the RS485 bus. The RS485 bus is connected to the central control processor, through which the information collected by each laser distance sensor is processed, stored, displayed, and output. It can realize automatic, real-time, multi-section and continuous long-term measurement of roadway deformation. It has the characteristics of high measurement accuracy, long measurement distance, strong anti-interference ability, multi-section, multiple measurements for a long time, and the function of setting and saving measurement parameters. It is beneficial to reduce and avoid the casualties and losses caused by the deformation and collapse of the roadway, thereby improving the safety of construction operations.

Description

A kind of deformation of the surrounding rock in tunnel dynamic measurement device

Technical field

The utility model relates to a kind of dynamic measurement device, especially a kind ofly is applicable to that deformation of the surrounding rock in tunnel measurement in real time, data storage, image show and multiple functions such as data communication are the mining tunnel surrouding rock deformation dynamic measurement device of one.

Background technology

Along with the minimizing of coal resources under mine superficial part, the simple condition and the increasing of pit mining intensity, the colliery continues to shift to deep and complex conditions exploitation, and a deformation of the surrounding rock in tunnel control difficult problem more and more shows especially.Whether roadway support intensity is enough, and whether existing supporting design scheme and parameter be suitable, and whether roadway deformation becomes surely, all needs surrouding rock deformation is monitored, assesses, fed back.At present the roadway deformation monitoring method mainly adopts steel ruler formula convergence gauge and hangs the ways of contact such as steel ruler levelling and measures, and it is low, simple to operate and adapt to the advantage of abominable construction environment that this method has a cost.But this monitoring method also has tangible limitation, as hanging the chi difficulty, construction is disturbed big, measurement result is influenced by human factor easily, be difficult to guarantee the precision of construction Deformation monitoring, and surveying work takies a large amount of manpowers, inefficiency, can not realize can not be continuously, in real time, measure automatically.Be applied in the displacement measurement of underground works in states such as Japan, Switzerland for non-contact three-dimensional observation (no dipstick metering is surveyed) technology.The method that realizes roughly has three kinds: one, be to be the 3 D analysis measurement of major equipment with many electronic theodolites; Two, being is the 3 D deformation measurement of major equipment with the total powerstation; Three, being is the close shot deformation measurement of major equipment with the close-range camera.But owing to these instrument and equipments cost an arm and a leg, the cost height, strict to working environment, measurement result is disturbed by the down-hole complex environment easily, causes the monitoring result distortion, is difficult to adapt to the operating environment of mine engineering complexity; And deformation of the surrounding rock in tunnel measures, the deformation rule that only needs several typical key points just can, do not need comprehensive monitoring to complete section.

Summary of the invention

It is a kind of simple in structure that the purpose of this utility model is to provide, and cost is low, and antijamming capability is strong, the deformation of the surrounding rock in tunnel dynamic measurement device that measuring accuracy is high.

For achieving the above object, dynamic measurement device of the present utility model, comprise a plurality of laser range sensors that are located at tunnel lateral wall and top at interval, a plurality of laser range sensors at tunnel lateral wall and top are distributed on the same cross section in pairs, each laser range sensor links to each other with the RS485 bus respectively, be connected to central control processor through the RS485 bus, each laser handled, stores, shows, also exported apart from the information of sensor acquisition through central control processor.

Signal controlling module, memory module, display module, communication interface module, power system modules that described central control processor comprises microprocessor, links to each other with microprocessor respectively.

Beneficial effect: the utility model is pressed spacing distance according to requirement of engineering and is laid the laser range sensor that roadway deformation is measured, and links to each other with central control processor by the RS485 bus, forms observation grid and lays; Send instruction according to the control of sample frequency central authorities with processor, excitation laser distance measuring sensor emission pulse laser, the tested basic point of laser directive, and return laser light distance measuring sensor, the high-acruracy survey of realization measuring distance; Laser range sensor by the RS485 bus structure, is sent to measurement result central authorities' control and carries out data processing and storage with processor, selects according to user's needs, shows or exports.Can realize automatic, real-time, multibreak of roadway deformation, long-term measurement continuously, help reducing and avoid roadway deformation to collapse emitting waiting injures and deaths and the loss that causes, raising construction operation safety.Have the measuring accuracy height, error is little, far measuring distance, and antijamming capability is strong, measures the reliability height, and is low-cost and can realize multibreak, repeatedly measures for a long time.

Description of drawings

Fig. 1 is a laser ranging system range finding scheme of installation of the present utility model;

Fig. 2 is a laser ranging system range measurement principle block diagram of the present utility model.

Among the figure: laser range sensor-1; Central control processor-2; RS485 bus-3; Tunnel-4; Pulse laser-5.

Embodiment

Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:

Shown in Figure 1, the deformation of the surrounding rock in tunnel dynamic measurement device mainly is made of laser range sensor 1, central control processor 2 and RS485 bus 3; According to the down-hole actual conditions, lateral wall in underworkings 4 and top are provided with a plurality of laser range sensors 1 in tunnel at interval, the a plurality of laser range sensors 1 that are located at tunnel lateral wall and top are distributed on the same cross section in pairs, each cross section is a transmitter unit, respectively tunnel span and top end height are measured in real time by the pulse laser 5 that lateral wall and top lasers distance measuring sensor 1 send, each laser range sensor 1 is connected with the RS485 bus 3 of down-hole respectively, be connected to central control processor 2 through RS485 bus 3, handle through the information that 2 pairs of each laser of central control processor are gathered apart from sensor 1, storage, show, and output.Signal controlling module, memory module, display module, communication interface module, power system modules that central control processor 2 comprises microprocessor, links to each other with microprocessor respectively.Wherein: laser range sensor 1 adopts the INSIGHT-60 laser range sensor of Switzerland Ying Saite company, the pulse laser 5 that transmitter unit sends meets the eye-safe standard, laser is through testee return laser light distance measuring sensor 1, obtain test cell to the distance between target, its information becomes data-signal RS232 after quantizing, be the RS485 signal that has the ID sign through the signal identification cell translation of laser range sensor 1; Central control processor 2 controls and work and the sequential of coordinating each module realize power supply; Information acquisition; Information stores; Image shows; Information output waits every function.Microprocessor is selected the C8051F020 of U.S. Silicon Laboratories company for use, and microprocessor links to each other with laser range sensor 1 by RS485 bus 3.The signal controlling module comprises the RS232/RS485 converter, isolate transceiver module RSM3485CHT, being implemented in synchronization can carry out data acquisition to the multi-path laser stadimeter, and basis ID separately numbers the corresponding record data respectively, and consolidated network can connect 30 sensors.According to the sample frequency of setting for the user, can carry out controlling of sampling to each laser range sensor respectively.Memory module adopts U.S. ATMEL serial FLASH memory AT45DB161D memory module, and memory capacity reaches the 2M byte, the data that collect can be preserved, and realize not obliterated data of power down.Display module is selected the integrated display LM2068E that has driver module and character base module for use, realizes the driving of liquid crystal display and calling of character library, realizes that by the operation to the menu that shows curve map and numerical value show the switching of two kinds of patterns.LCD links to each other with microprocessor, shows the result of microprocessor output.Playback: the data that will be kept among the Flash read and playback.Cooperate the control of microprocessor, show deformation curve, display mode is switched between curve map and numerical value.Output module is selected the RSM3485CHT of Zhou Ligong for use, and the data unofficial biography can be selected dual mode for use, and a kind of is to adopt wired way of output, and another kind is to adopt the infrared radio way of output.Wired output adopts RS232 to connect computing machine, adopts MAX232; The infrared radio output module is selected TFDU4100 for use, can cooperate portable hand-held infrared radio data collecting instrument to carry out data acquisition in the down-hole.Power system modules adopts homemade intrinsic safety electric source module, comprises chargeable combined electrical core, current limliting/pressure limiting module and DC/DC isolation module, realizes the laser range sensor of all accesses is unified power supply by a power lead.

Claims

1. deformation of the surrounding rock in tunnel dynamic measurement device, it is characterized in that: it comprises a plurality of laser range sensors (1) that are located at tunnel lateral wall and top at interval, a plurality of laser range sensors (1) at tunnel lateral wall and top are distributed on the same cross section in pairs, each laser range sensor (1) links to each other with RS485 bus (3) respectively, be connected to central control processor (2) through RS485 bus (3), handle, store, show, also export through the information that central control processor (2) is gathered apart from sensor (1) each laser.

2. deformation of the surrounding rock in tunnel dynamic measurement device according to claim 1 is characterized in that: signal controlling module, memory module, display module, communication interface module, power system modules that described central control processor (2) comprises microprocessor, links to each other with microprocessor respectively.